Micro Battery

Creating Time - Optimizing Time - Enriching Time
Seiko Instruments Inc. (SII), founded in 1937 as a member of the Seiko Group specializing in the
manufacture of watches, has leveraged its core competency in high precision watches
to create a wide range of new products and technologies.
Over the years SII has developed high-precision processed parts and machine toolsthat pride themselves on their sub-micron processing capability,
quartz crystals that came about as a result of our quartz watch R&D,
and electronic components such as micro batteries.
Optimizing our extensive experience and expertise, we have since diversified
into such new fields as compact, lightweight, exceedingly quiet thermal printers,
and inkjet printheads, a key component in wide format inkjet printers for corporate use.
SII, in the years to come, will maintain an uncompromised dedication
to its time-honored technologies and innovations of craftsmanship, miniaturization, and efficiency
that meet the needs of our changing society and enrich the lives of those around us.

Genealogy of Seiko Group
1947 Wako Co., Ltd.
2001 Seiko Watch Corporation
1881 K. Hattori

Hattori Seiko Co., Ltd.

Seiko Corporation

2006 Seiko NPC Corporation1975 Nippon Precision
Circuits Inc.

1998 Seiko Time Systems Inc.
1892 Seikosha

2022 Seiko Group Corporation

Seiko Holdings Corporation

Seikosha Co., Ltd.

2021 Seiko Time Creation Inc.

1996 Seiko Clock Inc.
1996 Seiko Precision Inc.
2013 Seiko Solutions Inc.

1937 Daini Seikosha Co., Ltd.

Seiko Instruments &Electronics Ltd.

2004

Seiko Instruments Inc.

CONTENTS
Product Introduction……………………………………… 3

TS Lithium Rechargeable Battery…………………… 18

Micro battery Products Lineup…………………………… 5

Chip Type Electric Double layer Capacitor………… 20

Example of a Application Circuit………………………… 6

Mercury Free Silver Oxide Battery : SEIZAIKEN……… 22

Charging Circuit…………………………………………… 7

Selection Check Sheet………………………………… 24

Reflowable Lithium Rechargeable Battery……………… 8

Green Plan and Environmental Policy……………… 25

MS Lithium Rechargeable Battery…………………… 10

Precautions for Your Safety…………………………… 26

MS Lithium Rechargeable Battery<Wide Temperature Range>…………………………… 16

Product Introduction
MEMO

B

M

3

4.8

IATF

M

B

4

Micro battery Products Lineup
Our rechargeable batteries, capacitors and silver oxide batteries are available invarious sizes for broad range of applications.
Lithium Rechargeable Battery Features

Capacitor Features

Silver Oxide Battery Features• Excellent cycle characteristics• Available in many compact sizes• Wide Temperature Range (MS-T)• Reflowable (MS-R, ML)• Reflowable and high reliability• Super small and thin size

• Stable output voltage• Available in many sizes of ϕ11mm or less• High capacity and High output

Lithium Rechargeable Battery
Series

Size
(DxH)
(mm)
4.8 × 2.1
6.8 × 2.1
4.8 × 1.2
4.8 × 1.4
5.8 × 1.8
6.8 × 1.4
6.8 × 2.1
9.5 × 2.1
6.8 × 2.1
9.5 × 2.0
6.8 × 2.1
9.5 × 2.0
4.8 × 1.4

Type

MS-R

MS

MS-T
TS
ML

MS421R
MS621R
MS412FE
MS414GEMS518SEMS614SE
MS621FE
MS920SE
MS621TMS920T
TS621E
TS920E
ML414H

NominalVoltage
(V)
3
3
3
3
3
3
3
3
3
3
1.5
1.5
3

Maximum
Use Voltage
(V)
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.0
3.0
3.1

NominalCapacity
(mAh)
1.5
3.0
1.0
2.0
3.4
3.4
5.5
11.0
3.0
6.5
2.5
5.5
1.0

Cycle LifeInternal
Operating
Impedance Temperature Range (100% D.O.D.) Reflowable(°C)(Time)(Ω)
600− 20 t o + 60
Yes
50
400
− 20 t o + 60
Yes
50
100
− 20 t o + 60
100
−
100
− 20 t o + 60
50−
90
− 20 t o + 60
100−
80
− 20 t o + 60
100−
80
− 20 t o + 60
100−
35
− 20 t o + 60
100−
80
− 40 t o + 85
100−
60
− 40 t o + 85
100−
50
− 20 t o + 60
100−
20
− 20 t o + 60
50−
600
− 20 t o + 60
300*
Yes*10% D.O.D.

Electric Double Layer Capacitor
Type
CPH3225A
CPM3225A

Size(LxWxH)(mm)
3.2 × 2.5 × 0.9
3.2 × 2.5 × 0.9

Maximum Use
Voltage(V)

Capacitance
(mF)

3.3
2.6

11.0
11.5

Internal
Impedance
(Ω)
160
80

Temperature
Range
(°C)
− 20 t o + 60
− 30 t o + 70

Reflowable
Yes
Yes

Silver Oxide Battery (High Drain)
TypeSR626W
SR721W
SR726W
SR41W
SR920W
SR927W
SR1120W
SR1130W
SR43W
SR44W

NominalCapacity
Voltage Nominal
(mAh)
(V)
1.55
1.55
1.55
1.55
1.55
1.55
1.55
1.55
1.55
1.55

28
26
34
45
42
53, 60
53
80
120
160

Size
(DxH)
(mm)
6.8 × 2.60
7.9 × 2.10
7.9 × 2.60
7.9 × 3.60
9.5 × 2.05
9.5 × 2.70
11.6 × 2.05
11.6 × 3.05
11.6 × 4.20
11.6 × 5.40

Applications
Generaldigitalequipment

Communication
modules

Weight
(g)
0.39
0.41
0.52
0.67
0.60
0.75
0.93
1.29
1.75
2.20

Actual sizes
Wireless
sensor
network
devices(Units: mm)

Healthcareequipment

Vehicledevices
φ11.6

φ9.5

φ7.9

φ6.8

φ5.8

φ4.8

3.2×2.55

Example of a Application Circuit
Example of RTC backup circuit
VCC
Main power
supplyVR
S-13R1*

VDD
RTC
S-35390A

CPU

SCL
SDA
INT1
INT2

MS414GE
3V/2.0mAh
SC-32SMS614SE
3V/3.4mAh

VCC
Reference: 4pF
Temperature
sensor* Reverse Current Protection CMOS Voltage Regulator S-13R1, made by ABLIC Inc..
* This circuit diagram is a reference example. See the data sheet of each product before using it.

Example of RTC backup time, using MS414GE / MS614SE
RTC used: CMOS real time clock IC S-35390A,
made by ABLIC Inc..
Clock operating voltage: 1.1 to 5.5V,
current consumption: 0.25μA
Crystal used: SC-32S, made by Seiko Instruments Inc.
CL = 6.0pF, R1 = 70kΩ max.

3.5

Battery voltage (V)

3.0
2.5
2.0
MS414GE1.5
1.0

MS614SE

RTC operable voltage

0.5
0.0

0

5,000

Discharge Time (hours)

10,000One year (8,760 hours)* This graph is a rough indication. The operating time varies depending on the actual service conditions.

6

Charging Circuit
Charging circuit for MS / ML / TS Lithium Rechargeable Battery
Resistor to regulate
the charging current

Diode
Vo
Power
SourceVf
MS / ML / TS Battery

The charging voltage “Vo” must Not be higher than 3.3V (MS series) / 3.1V (ML414H) / 3.0V (TS series).
A resistor must be inserted to regulate the charging current, because our rechargeable batteries have a limit for charging
current.
Please see the below table for recommended resistor values.
Those values are minimum for each battery type and “Vo” in the charging circuit.
The following table lists the recommended resistance values. For example, MS614SE and Vo 3.3V, the resistor value
should be 620 ohm or more.

MS lithium rechargeable battery / ML lithium rechargeable battery
MS412FE
MS414GEMS421R

MS518SEMS614SE

MS621FE
MS621TMS621R

MS920SE
MS920T

ML414HVo(V)

Resistor(ohm)

Resistor(ohm)

Resistor(ohm)

Resistor(ohm)

Resistor(ohm)

Resistor(ohm)

Resistor
(ohm)

3.3

2,000

3,000

1,500

620

620

620

prohibited

3.1

1,600

3,000

820

330

330

330

3,000

TS lithium rechargeable battery

Discharge capacity depends on charging voltage.

TS621E

TS920E

Lower charging voltage may cause lower discharge capacity.

Vo(V)

Resistor(ohm)

Resistor(ohm)

Please see Charge Voltage Characteristics data in respective battery

3.0
2.3
1.6

10,0006,800
3,000

12,0008,200
4,700

pages.

Charging circuit for CPH / CPM capacitor
Diode
Vo
Power
SourceVf

CPH / CPM Capacitor

You do not need to insert a resistor to regulate charging current.
Our CPH / CPM capacitor do not have a limit for charging current.
The charging voltage “Vo” must Not be higher than 3.3V (CPH3225A) / 2.6V (CPM3225A).

7

Reflowable Lithium Rechargeable Battery

SII MS-R Series 3V Type

Reflowable

MS621R / MS421R
New products “MS-R series” are large capacity small size coin battery that can be mounted
by reflow soldering.
In addition to being reflowable, they offer the unique features of the conventional MS
rechargeable batteries such as high-voltage (3.3V), large-capacity, long cycle life, andexcellent over discharge characteristics.
FEATURES• Reflowable• Higher voltage, 3.3V (Compared with our ML414H)• Excellent cycle characteristics (Compared with ourML414H)• Battery is not applied to RoHS Directives. Ourbattery products do not contain any substances
restricted by RoHS Directive.
• Approved by UL (Underwriters Laboratories Inc.)UL File No. MH15628

APPLICATIONS
Backup power for Real Time Clock, or memory.
	E.g. Digital Camera, Action Camera,
GPS equipment, Event Data Recorder,
Handy Terminal, PC, Smart phone.
Type

NominalCharge Voltage Nominal Capacity *1 Internal Impedance *2 Operating Temperature
(mAh)
(Ω)
Range
Voltage (V) (Standard Charge Voltage) (V)Cycle Life (Time)
100%

20%

Size (mm)Diameter Height

Weight(g)

MS421R3

2.9 to 3.3(3.1)

1.5

600

−20°C to +60°C

50

500

4.8

2.1

0.11

MS621R3

2.8 to 3.3(3.1)

3.0

400

−20°C to +60°C

50

500

6.8

2.1

0.24

*1. Nominal capacity: Typical value of discharge capacity between 3.1V and 2.0V.
*2. A constant voltage charge is recommended, but due to a limit in charge current, it is necessary to insert a resistor to regulate the charge current.
Please see Page 7 for resistor value. Contact us for further details.
If a constant current charge is required, contact us for more information.

Please see Page 21 for Reflow profile example.

CHARACTERISTICSDIMENSIONS

Charge/discharge characteristics
MS621R

MS621R II27E

0.15

2.0

1.1

Charge: max. 100µA/3.1V/96 hours (CC/CV)
Discharge: 10µA/c.o.v.=2.0V (CC)

0.5

1.0

1.5

2.0

2.5

3.0

3.5

Capacity (mAh)

1.3

1.1
(Sn plated portion)
φ 6.8max.

1.5
0.0

1.1

0.7
(Sn plated portion)

2.5

2.8 max.

Voltage (V)

3.0

3

2

3.5

*c.o.v.…cut off voltage- Units: mm- The shaded parts are tin plated (Sn: 100%).

8

CHARACTERISTICSDIMENSIONS

Charge-Discharge Cycle Characteristics
MS421R

MS421R IV03E
45°

MS421R
φ 4.8max.

100
80
60

0

2

4

6

8

10

Cycle Number (times)

2.4

2.4

2.4

0

Charge: 3.1V/max. 30µA/96 hours (CC/CV)
Discharge: 5µA/c.o.v.=2.0V (CC)

1.24
2.4

1.24

20

0.1

1

3.5

0.8
(Sn plated portion)

2.46

ML414H40

1(Sn plated portion)

Capacity retention ratio (%)

120*c.o.v.…cut off voltage- Units: mm- The shaded parts are tin plated (Sn: 100%).

ML Lithium Rechargeable Battery

SII ML Series Reflowable

Reflowable

ML414H“ML414H” is a thin and small size coin battery that can be mounted by reflow soldering.
FEATURES• Operating temperature range: −20°C to +60°C
Consult us for using the battery at a temperature
beyond the above temperature range.
• Battery is not applied to RoHS Directives. Ourbattery products do not contain any substances
restricted by RoHS Directive.
• Approved by UL (Underwriters Laboratories Inc.)UL File No. MH15628

Type

NominalVoltage(V)

Charge Voltage*3(V)

ML414H3

2.7 to 3.1

Nominal Capacity InternalStandard(Voltage Range V) Impedance*1 Discharge Current
(mAh)
(Ω)
(mA)
1.0
(3.1 to 2.0)

600

0.005

Cycle Life*2(Time)
300 (10% D.O.D.)

Diameter Height Weight(mm) (mm)
(g)
4.8

1.4

0.07

*1. Value measured using an AC (Alternating Current) method in the fully charged state.
*2. Counts of charge and discharge repetition that maintains about 50% of the minimum guaranteed capacity*3. A constant voltage charge is recommended, but due to a limit in the charge current, it is necessary to insert a resistor to regulate the charge current.
Please see Page 7 for resistor value. Contact us for further details. If a constant current charge is required, please contact us for more information.

CAUTION
Max. charging voltage of ML414H is 3.1V.

Please see Page 21 for Reflow profile example.

9

MS Lithium Rechargeable Battery

SII MS Series 3V Type

Non-Reflowable

MS412FE / MS414GE / MS518SE / MS614SE / MS621FE / MS920SE
MS (Manganese Silicon) lithium rechargeable batteries, developed by SII, use silicon oxide as
the anode and a lithium manganese composite oxide as the cathode. As a result, they offer
long cycle life and highly stable overdischarge characteristics.
FEATURES• Large discharge capacity :For high operational voltage range of 3.3V to 2.0V.

• Long cycle life :	Cycle life of over 100 cycles (over 50 cycles for MS414GE)
under charge/discharge conditions of 3.1V to 2.0V
(D.O.D.100%).

• Excellent overdischarge characteristics :	Continued
stable capacity characteristics even after thebattery is overdischarged down to 0.0V.

• Operating temperature range : −20°C to +60°C
Consult us for using the battery at a temperature
beyond the above temperature range.
• Battery is not applied to RoHS Directives. Ourbattery products do not contain any substances
restricted by RoHS Directive.
• Approved by UL (Underwriters Laboratories Inc.)

Negativecap

GasketUL File No. MH15628

Negative
electrode

APPLICATIONS

Separater

Backup power for Real Time Clock, or memory.
E.g. Digital Camera, Action Camera,
GPS equipment, Event Data Recorder,
Handy Terminal, PC, Smart phone.

Positive
electrode<Cross Section>

Type

Charge Voltage
Nominal(Standard
Voltage
Charge Voltage)*6(V)(V)

Positive
case

NominalCapacity(mAh)*1

Internal
Impedance(Ω)*2Cycle Life (Time)*4
Size (mm)MaximumStandard
Discharge
100%*520%*5Discharge
Current
D.O.D.
D.O.D.
Current(Continuous) (Depth of (Depth of Diameter Height(mA)(mA)*3
Discharge) Discharge)

Weight(g)

MS412FE3

2.8 to 3.3 (3.1)

1.0

100

0.010

0.10

100

1000

4.8

1.2

0.07

MS414GE3

2.8 to 3.3 (3.1)

2.0

100

0.010

0.05

50

500

4.8

1.4

0.08

MS518SE3

2.8 to 3.3 (3.1)

3.4

90

0.010

0.15

100

1000

5.8

1.8

0.13

MS614SE3

2.8 to 3.3 (3.1)

3.4

80

0.015

0.25

100

1000

6.8

1.4

0.17

MS621FE3

2.8 to 3.3 (3.1)

5.5

80

0.015

0.25

100

1000

6.8

2.1

0.23

MS920SE3

2.8 to 3.3 (3.1)

11.0

35

0.050

0.80

100

1000

9.5

2.1

0.47

*1. Nominal capacity: Typical value of discharge capacity between 3.1V and 2.0V
*2. Internal impedance is measured using an AC (Alternating Current) method at the fully charged state.
*3. Maximum discharge current indicates the value of a current for approximately 50% of the nominal capacity.
*4. Cycle Life indicates the times charge/discharge is repeated for approximately 50% of the capacity values in the specification sheet.
*5. 100% and 20% are based on nominal capacity.
*6. A constant voltage charge is recommended, but due to a limit in charge current, it is necessary to insert a resistor to regulate the charge current.
Please see Page 7 for resistor value. Contact us for further details.
If a constant current charge is required, contact us for more information.

CAUTIONMS Lithium Rechargeable Batteries are not reflowable. Please mount them on PCB by hand soldering.

10

CHARACTERISTICSDISCHARGE (CHARGE VOLTAGE DEPENDENCE)
MS412FE

3.5

Charge: max. 0.025mA/72 hours (CC/CV)
Discharge: 10 μA/c.o.v. = 2.0V (CC)

3.0

3.0
Voltage (V)Voltage (V)3.5

MS414GE

2.5
3.3V
3.1V
2.8V
3.0V
2.9V

2.0
1.5
0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

3.5
3.0
Voltage (V)Voltage (V)

2.0

1.0

1.5

2.0

2.5

0.5

1.0

1.5

2.0

2.5

3.0

Charge: max. 0.1mA/96 hours (CC/CV)
Discharge: 15 μA/c.o.v. = 2.0V (CC)

3.3V

2.5

3.1V

2.0

2.9V 3.0V
3.1V
3.3V

2.8V

1.5
0.0

3.5

Capacity (mAh)

1.0

2.8V

2.9V

2.0

3.0

3.0V
4.0

Capacity (mAh)

MS621FE

MS920SE
3.5

3.5
Charge: max. 0.1mA/96 hours (CC/CV)
Discharge: 15 µA/c.o.v. = 2.0V (CC)

3.0

3.1V 3.3V

2.5

2.9V

2.0

2.8V

1.0

2.0

3.0

Capacity (mAh)

5.0Charge: max. 0.2mA/96 hours (CC/CV)
Discharge: 50 μA/c.o.v. = 2.0V (CC)

3.1-3.3V

2.5
2.0

3.0V
4.0

Voltage (V)3.0
Voltage (V)0.5

MS614SE

2.5

1.5
0.0

2.8V 2.9V 3.0V
3.3V

Capacity (mAh)

Charge: max. 0.06mA/72 hours (CC/CV)
Discharge: 10 μA/c.o.v. = 2.0V (CC)

1.5
0.0

3.1V

1.5
0.0

1.6

MS518SE

3.0

2.5
2.0

Capacity (mAh)

3.5

Charge: max. 0.05mA/60 hours (CC/CV)
Discharge: 10 μA/c.o.v. = 2.0V (CC)

6.0

1.5
0.0

2.8V
2.0

4.0

6.0

2.9V
8.0

3.0V

10.0

12.0

Capacity (mAh)*c.o.v.…cut off voltage

11

MS Lithium Rechargeable Battery

SII MS Series 3V Type

CHARACTERISTICS
MS621FE

Discharge Current characteristics

3.5

3.5

3.0

3.0
Voltage (V)Voltage (V)Charge/discharge characteristics

2.5

20μA

Charge: max. 0.1mA/3.1V, 96 hours (CC/CV)
Discharge: 15 μA/c.o.v. = 2.0V (CC)

1.0

2.0

3.0

4.0

5.0

1.5
0.0

6.0

300μA
1.0

30 days
180 days

2.0

3.0

4.0

2.5

60°C

5.0

1.5
0.0

6.0

1.0

2.0

3.0
40 days

Initial

200 days
150 days 100 days
20 days
60 days
1.0

2.0

3.0

4.0

Capacity (mAh)

5.0

6.0

Voltage (V)Voltage (V)

1.5
0.0

3.5

80 days

2.0

3.0

4.0

5.0

6.0

7.0

Floating Characteristics (60°C, applied voltage 3.1V)

Storage condition: respective period at 60°C
[Capacity measurement conditions]
Charge: max. 0.1mA/3.1V, 96 hours (CC/CV)
Discharge: 15 μA/c.o.v. = 2.0V (CC)

2.5

24°C

Capacity (mAh)High Temperature (60°C) Storage Characteristics

3.0

0°C

−20°C

InitialCapacity (mAh)

3.5

6.0

Charge: max. 0.1mA/3.1V, 96 hours, RT (CC/CV)
Discharge: 15 µA/c.o.v. = 2.0V, respective temperature (CC)2.0

60 days
1.0

5.0

3.0
Voltage (V)Voltage (V)

3.5

2.5

1.5
0.0

4.0

3.0

Discharge Temperature Characteristics

Overdischarge: 18kΩ discharge/respective period[Capacity measurement conditions]
Charge: max. 0.1mA/3.1V, 96 hours (CC/CV)
Discharge: 15 µA/c.o.v. = 2.0V (CC)

2.0

50μA

5μA

Capacity (mAh)

Overdischarge Characteristics

3.0

15μA

200μA 100μA

2.0

Capacity (mAh)

3.5

10μA

2.5
2.0

2.0
1.5
0.0

Charge: max. 0.1mA/3.1V, 96 hours (CC/CV)
Discharge: respective current/c.o.v. = 2.0V (CC)

Storage conditions: Each period at 60°C, applied voltage 3.1V
[Capacity measurement conditions]
Charge: max. 0.1mA/3.1V, 96 hours (CC/CV)
Discharge: 15 μA/c.o.v. = 2.0V (CC)80 days 40 days

2.5

Initial
200 days

2.0
1.5
0.0

150 days 100 days

60 days

1.0

2.0

3.0

4.0

20 days

5.0

6.0

Capacity (mAh)*c.o.v.…cut off voltage

12

DIMENSIONS
MS412FE

φ 4.8max.

2.2

1.3 – 00.15

1.6max.

0.1

1.75

φ 4.8max.

0.5

2

0.5

MS412FE FL26E

1.6(Sn plated portion)

MS414GE

φ 4.8max.

2.2

1.42 – 00.1

1.65max.

0.1

1.75

φ 4.8max.

0.5

2

0.5

MS414GE FL26E

1.6(Sn plated portion)

MS518SE

φ 5.8max.

2.2

1.85 – 00.15

0.1

1.75

2.1max.

φ 5.8max.

0.5

2

0.5

MS518SE FL35E

1.6(Sn plated portion)- Units: mm- The shaded parts are tin plated (Sn: 100%).

13

MS Lithium Rechargeable Battery

SII MS Series 3V TypeDIMENSIONS
MS614SE

2.1

φ 6.8max.

2.5

0.07
1.4 –+ 0.10

0.1

1.8max.

0.5

φ 6.8max.

2

0.5

MS614SE FL28E

1.8(Sn plated portion)

MS621FE

0.10
2.05 –+ 0.05

2.5

0.15

2.2

2.8 max.

φ 6.8max.

0.5

2

0.5

MS621FE FL11E

1.8

φ 6.8max.

(Sn plated portion)

1.7(Sn plated portion)

MS920SE

1.8
φ 9.5max.

(Sn plated portion)

1.7(Sn plated portion)- Units: mm- The shaded parts are tin plated (Sn: 100%).

14

0.2
2.0 –+ 0.1

3

0.15

2.2

2.7 max.

φ 9.5max.

0.5

2.5

0.5

MS920SE FL27E

DIMENSIONS
MS621T

0.10
2.05 –+ 0.05

2.5

0.15

2.2

2.8 max.

φ 6.8max.

0.5

2

0.5

MS621T FL11E

1.8

φ 6.8max.

(Sn plated portion)

1.7(Sn plated portion)

MS920T0
2.05 −0.2

3

0.15

2.2

2.7 max.

φ 9.5max.

0.5

2.5

0.5

MS920T FL27E

1.8
φ 9.5max.

(Sn plated portion)

1.7(Sn plated portion)- Units: mm- The shaded parts are tin plated (Sn: 100%).

15

MS Lithium Rechargeable Battery

SII MS-T Series <Wide Temperature Range>

Non-Reflowable

MS621T / MS920T“MS621T” and “MS920T” have improved both higher and lower temperature characteristics whileleaving features of the conventional MS rechargeable batteries. They offers wider temperature
range from -40°C to +85°C.
FEATURES• Operation over a wide temperature range:
Operating temperature range : −40°C to +85°C• High reliability : At least 90% of retention capacity
after exposure to 85°C for 100 days.
• Long cycle life : 100 cycles (D.O.D.100%)• Battery is not applied to RoHS Directives. Ourbattery products do not contain any substances
restricted by RoHS Directive.
• Approved by UL (Underwriters Laboratories Inc.)

MS920T FL27E

UL File No. MH15628

MS621T FL11E

APPLICATIONS
Backup power for Real Time Clock, or memory.
E.g. Automotive equipment, Security cameras,
electronic power, gas and water meters, electronic
devices where PCB temperature increases.
Type

NominalCharge Voltage Nominal Capacity *1 Internal Impedance *2 Operating Temperature
(mAh)
(Ω)
Range
Voltage (V) (Standard Charge Voltage) (V)Cycle Life (Time)
100%

20%

Size (mm)Diameter Height

Weight(g)

MS621T3

2.8 to 3.3(3.1)

3.0

80

−40°C to +85°C

100

1000

6.8

2.1

0.23

MS920T3

2.8 to 3.3(3.1)

6.5

60

−40°C to +85°C

100

1000

9.5

2.0

0.45

*1. Nominal capacity: Typical value of discharge capacity between 3.1V and 2.0V.
*2. A constant voltage charge is recommended, but due to a limit in charge current, it is necessary to insert a resistor to regulate the charge current.
Please see Page 7 for resistor value. Contact us for further details.
If a constant current charge is required, contact us for more information.

CAUTIONMS Lithium Rechargeable Batteries are not reflowable. Please mount them on PCB by hand soldering.

CHARACTERISTICS
Charge Voltage Characteristics
MS621TMS920T

4.0

9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0
2.7

3.0
2.5
2.0
1.5
1.0

Charge: max. 100µA/respective voltage/
96 hours/RT(CC/CV)
Discharge: 15µA/c.o.v.=2.0V/RT (CC)

0.5
0
2.7

2.8

2.9

3.0

3.1

3.2

Charge Voltage (V)16

Capacity (mAh)

Capacity (mAh)

3.5

3.3

3.4

Charge: max. 200µA/respective voltage/
72 hours/RT(CC/CV)
Discharge: 25µA/c.o.v.=2.0V/RT (CC)

2.8

2.9

3.0

3.1

3.2

3.3

Charge Voltage (V)*c.o.v.…cut off voltage

3.4

CHARACTERISTICS
Discharge characteristics (-40°C capacity)
MS621T

3.2
Voltage (V)

2.6

24℃

3.0
2.8
2.6

24℃

2.4

2.2
2.0

* Charge Discharge condition
Charge: 3.1V, 72 hours, max. 200 μA, RT
Discharge: 25 μA, c.o.v.=2.0V, -40℃ or 24℃

3.4

2.8

2.4

MS920T Discharge Characteristics

3.6* Charge Discharge condition
Charge: 3.1V, 96 hours, max. 100μA, RT
Discharge: 15μA, c.o.v.=2.0V,-40℃ or 24℃

3.0
Voltage (V)MS920TMS621T Discharge Characteristics

3.2

2.2

−40℃
0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

2.0

4.0

−40℃
0.0

Capacity (mAh)

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

Capacity (mAh)High temperature characteristics (85°C storage)
Storage period - Capacity
retention
ratioretention ratio
Storage period- Capacity
Capacity retention ratio (%)

120

MS-T series' capacity retention ratio after Hightemperature storage were greatly improved.

100* 85°C use of Conventional MS series is not guaranteed.

80

MS920T

60

MS920SE* Charge Discharge condition
MS920T
Charge: 3.1V, 72 hours, max. 200 μA, RT
Discharge: 25 μA, c.o.v.=2.0V, RT
MS621T
Charge: 3.1V, 96 hours, max. 100 μA, RT
Discharge: 15 μA, c.o.v.=2.0V, RT

MS621T40

MS621FE

20
0
0

480

960

1440

1920

2400

2880

3360

3840

*c.o.v.…cut off voltage

Storage period (hour)

Charge Characteristics (MS920T)
Charge time - Discharge capacity

Capacity retention ratio (%)

120

Both the MS621T and MS920T can reach
80% of capacity after 12 hours of charging.

100*MS920T: Calculated given a 100% charge of 6.5
mAh nominal capacity.

3.3V-620Ω

80

3.1V-330Ω

60
40* Charge condition
3.3V,620Ω
3.1V,330Ω

20
0

0

20

40

60

80

Charge time (hour)

100

120
*c.o.v.…cut off voltage

17

TS Lithium Rechargeable Battery

SII TS Series 1.5V Type

Non-Reflowable

TS621E / TS920E
TS lithium rechargeable batteries are high capacity 1.5V type non-reflowable rechargeable batteries that provide sufficient discharge capacity with a charge voltage of less than 2.0V.
FEATURES• Low-voltage rechargeable• High capacity• Long cycle life: at least 1000 cycles (20% D.O.D.)• Battery is not applied to RoHS Directives. Ourbattery products do not contain any substances
restricted by RoHS Directive.
• Approved by UL (Underwriters Laboratories Inc.)

TS920E FL27E

UL File No. MH15628 (TS621E only)

TS621E FL11E

APPLICATIONS• Solar Watch (as main battery)• Small mobile equipment (backup power supply forReal Time Clock)E.g. Digital Camera, Action Camera,
GPS equipment, Event Data Recorder,
Handy Terminal, PC, Smart phone.
Type

Nominal Charge Voltage*4
Voltage(V)(V)

TS621E

1.5

1.5 to 3.0

TS920E

1.5

1.6 to 3.0

Nominal Capacity(Voltage Range V)*1(mAh)
1.3 (1.5 to 1.0)
2.5 (2.3 to 1.0)

Internal
Impedance*2(Ω)

Standard
Discharge Current
(mA)

50

0.025

5.5 (2.3 to 1.0)

20

0.05

Cycle Life*3(Time)

Diameter Height Weight
(mm)
(mm)
(g)

1000 (20% D.O.D.)
100 (100% D.O.D.)
1000 (20% D.O.D.)
50 (100% D.O.D.)

6.8

2.1

0.23

9.5

2.0

0.46

*1. The discharge capacity of each voltage range (Room Temperature).
*2. Value measured using an AC (Alternating Current) method in the fully charged state.
*3. Counts of charge and discharge repetition that maintains about 50% of the minimum guaranteed capacity*4. A constant voltage charge is recommended, but due to a limit in the charge current, it is necessary to insert a resistor to regulate the charge current.
Please see Page 7 for resistor value. Contact us for further details.
If a constant current charge is required, please contact us for more information.

CAUTIONTS Lithium Rechargeable Batteries are not reflowable. Please mount them on PCB by hand soldering.

CHARACTERISTICS
Charge/discharge characteristics
TS920E

2.5

2.5

2.0

2.0
Voltage (V)Voltage (V)TS621E

1.5
1.0
0.5
0.0
0.0

Charge: max. 200μA/2.3V/48 hours (CC/CV)
Discharge: 25μA/c.o.v.= 1.0V (CC)

0.5

1.0

1.5

2.0

Capacity (mAh)

18

1.5
1.0
0.5

2.5

3.0

0.0
0.0

Charge: max. 200μA/2.3V/72 hours (CC/CV)
Discharge: 50μA/c.o.v.=1.0V (CC)

1.0

2.0

3.0

4.0

Capacity (mAh)

5.0

6.0

*c.o.v.…cut off voltage

CHARACTERISTICS
Charge Voltage Characteristics
TS621E

TS920E
7.0 7.0

3.0 3.0

6.0 6.0
Capacity (mAh)

1.5 1.5
1.0 1.0
Charge:Charge:max.max.
200µA/respective
200µA/respective
voltage/voltage/48 hours
48 hours(CC/CV)(CC/CV)
Discharge:
Discharge:
25µA/c.o.v.=
25µA/c.o.v.=
1.0V 1.0V(CC)(CC)

0.5 0.5
0.0 0.0
1.0 1.0

1.5 1.5

2.0 2.0

2.5 2.5

3.0 3.0

5.0 5.0
Capacity (mAh)

2.0 2.0
Capacity (mAh)

Capacity (mAh)

2.5 2.5

4.0 4.0
3.0 3.0
2.0 2.0

Charge:Charge:max.max.
200µA/respective
200µA/respective
voltage/voltage/
72 hours
72 hours(CC/CV)(CC/CV)
Discharge:
Discharge:
50µA/c.o.v.=
50µA/c.o.v.=
1.0V 1.0V(CC)(CC)

1.0 1.0
0.0 0.0
1.0 1.0

1.5 1.5

2.0 2.012012012012010010010010040 40

Storage
Storage
Condition:
Condition:
60°C60°C[Capacity[Capacity
measurement
measurement
conditions]conditions]
Charge:Charge:max.max.
200μA/2.3V/72
200μA/2.3V/72
hours
hours
(CC/CV)(CC/CV)
Discharge:
Discharge:
50μA/c.o.v.=
50μA/c.o.v.=
1.0V1.0V(CC)(CC)

20 20
0

0

0

0

20 20

40 40

60 60

80 80 100100 120120

Capacity retention ratio (%)

TS920E

Capacity retention ratio (%)

TS920E

Capacity retention ratio (%)

Float-Charge Characteristics

Capacity retention ratio (%)

High Temperature Storage Characteristics

60 60

3.0 3.0

ChargeChargeVoltage
Voltage(V) (V)

ChargeChargeVoltage
Voltage(V) (V)80 80

2.5 2.5

80 80
60 60
40 40

Storage
Storage
Condition:
Condition:
60°C/2.3V
60°C/2.3V
appliedapplied[Capacity[Capacity
measurement
measurement
conditions]conditions]
Charge:Charge:max.max.
200μA/2.3V/72
200μA/2.3V/72
hours
hours
(CC/CV)(CC/CV)
Discharge:
Discharge:
50μA/c.o.v.=
50μA/c.o.v.=
1.0V1.0V(CC)(CC)

20 20
0

0

0

0 20 20 40 40 60 60 80 80 100100 120120

Storage
Period(days)
Storage
Period(days)

Float
ChargePeriod(days)
Float
ChargePeriod(days)*c.o.v.…cut off voltage

DIMENSIONS
TS920E FL27E

1.8

1.7

(Sn plated portion)

φ 9.5max.

φ 6.8max.

1.8(Sn plated portion)(Sn plated portion)

2.7max.

3

0.15

2.2

2.8 max.

2.5

0.15

2.2

0.5

0.5

2

2.5

0.5

0.5

TS621E FL11E

1.7(Sn plated portion)- Units: mm- The shaded parts are tin plated (Sn: 100%).

19

Chip Type Electric Double layer Capacitor

SII CP Series

Reflowable

CPH3225A / CPM3225A
The thin (less than 1 mm) and small (3.2 mm × 2.5 mm) chip-type electric double layer
capacitors have unique ceramic packaging with superior air-tightness. It assures superiorleakage and humidity resistance.
FEATURES• Excellent leakage resistance and humidity resistance• Long life span, high reliability

 uperior air-tight ceramic package reduces storage eterioration
Sin high temperature / high humidity environments, assuring
long term reliability.

• Small leak current

 P capacitor allows sufficient charging with several microCwatts of energy harvesting power source.

• Long cycle Life:At least 10,000 times of charge/discharge.

• Simple Charging circuit (constant voltage charging)• RoHS Compliant

3.3V typeType

Maximum Use
Voltage(V)

Capacitance(mF)

Internal Impedance (ESR) *(Ω)

Size (LxWxH)(mm)OperatingTemperature Range

Weight(g)

CPH3225A

3.3

11.0

160

3.2×2.5×0.9−20°C to +60°C

0.024

Type

Maximum Use
Voltage(V)

Capacitance(mF)

Internal Impedance (ESR) *(Ω)

Size (LxWxH)(mm)OperatingTemperature Range

Weight(g)

CPM3225A

2.6

11.5

80

3.2×2.5×0.9−30°C to +70°C

0.024

2.6V type*. Value measured using AC (Alternating Current) method at the discharged state.

CAUTION
1．Prohibition ripple charging

2．Charge voltage

3．Usage environment

A ripple (high frequency fluctuation of voltage)in the charge voltage extremely lowers thecapacitor performance.
Be sure to charge capacitors with a stable
voltage.

The age deterioration of the capacitor
depends on the charge voltage.
The age deterioration is accelerated as
charge voltage goes higher.

Aging degradation of the capacitor varies
depending on the usage environment(temperature and humidity).
Contact us for further details.

APPLICATIONS• Power backup for Real Time Clock or memory• Power assist for main battery• Electric storage device for energy harvesting• Peak load leveling of primary battery
E.g. Handy terminals, Payment terminals, Wirelesssensor network devices, NFC-enabled mobile
devices, Battery powered medical devices, etc.

20

CHARACTERISTICS
Discharge Characteristics

Charge Characteristics
120

3.5

Voltage (V)2.5

Capacity retention ratio (%)

Charge: max. 1mA/3.3V (CPH),
2.6V (CPM) /30 minutes (CC/CV)
Discharge: 5μA/c.o.v.=0V (CC)

3.0

2.0
1.5
1.0

CPH3225A

0.5

CPM3225A

100
80

2.0

4.0

6.0

8.0

10.0

Capacity (μAh)

CPM3225A

40
20
0

0.0
0.0

CPH3225A

60

1

10

Charge: max. 10mA/3.3V (CPH),
2.6V (CPM) /respective charge time (CC/CV)
Discharge: 5μA/c.o.v.=2.0V (CPH),
1.0V (CPM) (CC)

100

1,000

Charge Time (seconds)

REFLOW SOLDERING CONDITIONS
Reflow Profile Example
The times of repeated reflow soldering must be two times or less.
The Temperature must be measured at top of the cell.

Temperature (°C)

250
200
150
Time above
200°C

100
50
0

0

50

100

150

200

250

300

Time (seconds)

DIMENSIONS

2.5

CPH3225A / CPM3225A

1

1

3.2

1

1

- Units: mm

21

Mercury Free Silver Oxide Battery :Non-Reflowable

SEIZAIKEN, Mercury Free Silver Oxide Batteries by SII, has grown with the history of quartz
watches. Silver Oxide Batteries have high density of energy per volume and are able to supply
stable voltage for a long time. SEIZAIKEN Batteries are suitable to power BLE(Bluetooth Low
Energy), wearable devices, and information devices.

APPLICATIONSFEATURES

Devices that require high discharge pulsing.

• Stable power voltage• Large energy density• Able to discharge mA level of pulse current• Lineup of small diameter (11.6mm and less)Type

Nominal Voltage Nominal Capacity
(V)
(mAh)

Dimensions (mm)Discharge Level

DiameterHeightWeight(g)

SR＊＊SW

1.55

5.5 to 160

Low current

4.8 to 11.6

1.25 to 5.40

0.11 to 2.20

SR＊＊W

1.55

26 to 160

High current

6.8 to 11.6

2.05 to 5.40

0.39 to 2.20

CHARACTERISTICS
Discharge Characteristics
SR920W Discharge characteristics

1.8
1.7

Voltage (V)

1.6
1.5
1.4
1.3
1.2
1.1
1

22

Discharge : Load:15kΩ / 23℃

0

10

20

30

Capacity (mAh)40

50

is our trademark for silver oxide battery globally acknowledged in the quartz watch market.

Low Drain Battery Lineup
Characteristics (RT)

Dimensions

Type

Nominal Voltage(V)

Standard *1
Capacity(mAh)Standard
Discharge
Current (μA)

Diameter(mm)

Height(mm)

Weight(g)Ref. No.

SR416SW
SR421SW
SR512SW
SR516SW

1.55
1.55
1.55
1.55

1.65
2.15
1.25
1.65

0.11
0.14
0.15
0.18

337
348
335
317

1.55

5.8

2.15

0.23

379

SR527SW
SR616SW

1.55
1.55

5.8
6.8

2.70
1.65

0.29
0.25

319
321

SR621SW

1.55

6.8

2.15

0.32

364

SR626SW

1.55

6.8

2.60

0.39

377

SR712SW
SR714SW
SR716SW

1.55
1.55
1.55

7.9
7.9
7.9

1.25
1.45
1.65

0.26
0.29
0.33

346
341
315

SR721SW

1.55

7.9

2.10

0.42

362

SR726SW
SR731SW
SR41SW
SR912SW
SR916SW

1.55
1.55
1.55
1.55
1.55

7.9
7.9
7.9
9.5
9.5

2.60
3.10
3.60
1.25
1.65

0.52
0.56
0.67
0.40
0.51

397
329
384
—
373

SR920SW

1.55

9.5

2.05

0.60

371

SR927SW

1.55

9.5

2.70

0.75

395

SR936SW
SR1120SW
SR1130SW
SR43SW
SR44SW

1.55
1.55
1.55
1.55
1.55

10
20
5
20
20
30
40
20
30
40
30
40
40
10
20
30
40
40
40
50
50
20
50
50
60
80
100
140
80
100
150
180

4.8
4.8
5.8
5.8

SR521SW

7.5
12
5.5
12.5
13
16
22
16
18
23
24
26
30
10
15
21
23
28
34
36
45
15
27
35
46
53
60
80
53
80
120
160

9.5
11.6
11.6
11.6
11.6

3.60
2.05
3.05
4.20
5.40

1.10
0.93
1.29
1.75
2.20

394
381
390
301
303

*1 The standard capacity is calculated by the measurement result of discharging time with the standard discharge current to the voltage 1.2V.

High Drain Battery Lineup
Characteristics (RT)

Dimensions

Type

Nominal Voltage(V)

Standard *1
Capacity(mAh)Standard
Discharge
Current (μA)

Diameter(mm)

Height(mm)

Weight(g)Ref. No.

SR626W
SR721W
SR726W
SR41W
SR920W

1.55
1.55
1.55
1.55
1.55

2.60
2.10
2.60
3.60
2.05

0.39
0.41
0.52
0.67
0.60

376
361
396
392
370

1.55

9.5

2.70

0.75

399

SR1120W
SR1130W
SR43W
SR44W

1.55
1.55
1.55
1.55

50
50
50
80
80
90
110
90
130
220
250

6.8
7.9
7.9
7.9
9.5

SR927W

28
26
34
45
42
53
60
53
80
120
160

11.6
11.6
11.6
11.6

2.05
3.05
4.20
5.40

0.93
1.29
1.75
2.20

391
389
386
357

*1 The standard capacity is calculated by the measurement result of discharging time with the standard discharge current to the voltage 1.2V.

23

Selection Check SheetCHECK SHEET
If you are considering the purchase of one or more of our microbatteries or capacitors,
please complete this check sheet and send it to us.
We will let you know which products will be optimum for you to use.
1. Products of interest□ Rechargeable Battery□ Capacitor□ Silver Oxide Battery

2. Application circuits

3. Applications□ As a power supply backup. □ As a main power supply.
If for backup power supply, load device is: □ RTC (Realtime clock)□ Other

4. Current consumption of load device
μA / mA
5. Minimum operating voltage of load device
V
6. Required discharge time
second / ms / μs (If for pulsed discharging)minute / hour / day / month (If for loads such as main power applications, RTC backup power, etc.)
7. Usage environment temperature

8. Mounting□ Reflow mounting required□ Reflow mounting not required

9. Service life of application

10. Desired charge voltage and charge time for rechargeable batteries and capacitors
V,
24

hour

Green Plan and Environmental Policy
SII Green Plan Concept
The SII Group has formulated the Green Plan based on the "Three Green" concept of "Green Process, Green Products, and Green
Life," under which the company practices environmentally conscious management.

SII Group Environmental Policy
SII had previously established an environmental policy for the SII Group, but when the Environmental Policy of its parent
company, Seiko Holdings Corporation (now Seiko Group Corporation), was revised in November 2021, SII decided to comply
with Seiko Holdings Corporation's Environmental Policy.

Environmental Policy
The Seiko Group recognizes that the preservation of the global environment is one of the most important issues in theworld today. We will constantly strive to help realize a sustainable society that will benefit everyone.
1. We are committed to a wide range of environmentally responsible activities, and we will continue to make unceasing
efforts to improve our environmental performance, thereby providing increased value for all our stakeholders.
2. We not only comply with all relevant laws and regulations, but also go far beyond legal compliance in our efforts to
reduce environmental risks and prevent pollution.
3. Being acutely aware of the part we have to play in mitigating climate change, we are working hard to reduce greenhousegas emissions.
4. Because we recognize the limits of our precious natural resources, we are increasing our efforts to reuse and recycle every
resource possible.
5. We are also working to preserve biodiversity, recognizing that our business activities inevitably affect surrounding
ecosystems, and that we also benefit from the health and diversity of those systems.
6. We rigorously ensure proper management of all chemical substances used in production as well as any that are containedin our finished products.
7. We consider the environment throughout the entire life cycle of our products. We are proud that our products andservices actively contribute to environmental conservation.
8. Environmental responsibility starts as a management imperative, but to effectively carry out that mission requires theunderstanding and cooperation of every employee throughout our Group. With that in mind, we are working to raise
everyone’s environmental awareness so that all of us can work together to protect and nurture our natural environment.
9. Transparency is another part of our social responsibility. We are therefore promoting active disclosure of material
information about our environmental activities and promoting increased communication with local, regional, and global
stakeholders.
10. In order to derive maximum benefits from these policies, we establish clear environmental targets and strategies toattain them. Then we steadily improve our efforts by constantly re-examining both our targets and our progress towards
achieving them.

25Precautions for Your Safety
SII Lithium rechargeable batteries (MS, ML, TS) contain flammable organic solvents.
For your safety, please follow following prohibitions.

WARNING!
1. Do not charge by high current or high voltage.

7. Do not weld terminals to the battery

Doing so may generate gas inside the battery, resulting swelling, fire,
heat generation or bursting.

2. Do not heat, disassemble nor dispose of in fire
Doing so damages the insulation materials and may cause fire, heatgeneration, leakage or bursting.

3. Do not solder directly to the battery
If soldering is performed directly to the battery, the battery is heatedup, consequently causing leakage, explosion or fire due to overheatingfrom internal short-circuit.

4. Do not short.
If the (+) and (-) come into contact with metal materials, short-circuit
occurs. As a result, fire, heat generation, leakage or bursting may occur.

5. Keep batteries out of the reach of children
It is dangerous if children swallow the battery. Keep batteries which areconsidered swallowable out of the reach of children. When designingmechanical hardware around the battery, make sure that the battery
cannot be removed by children.
Swallowing may lead to burns, perforation of soft tissue, and death.
Severe burns can occur within 2 hours of ingestion.
In case of ingestion of a battery, seek medical attention immediately.

6. Do not reverse placement of (+) and (-)

The heat by welding may cause fire, heat generation, leakage or bursting.
We weld standard terminals under strictly controlled conditions.
If you need to weld terminals to the battery, please consult us in advance.

8. Do not discharge by force
If the battery is discharged by direct connection to an external power
supply etc., voltage of the battery will decline lower than 0 volts (electrical
reversal) and will cause the battery case to expand, overheat, leak,explode or burn.

9. In case of leakage or a strange smell, keep away fromfire to prevent ignition of any leaked electrolyte.
10. In case of disposal, insulate between (+) and (-) of battery
by an insulating material.
Jumbling batteries or with other metal materials cause short-circuit. As
a result, fire, heat generation, leakage or bursting may occur.
Do not jumble batteries
Short-circuiting

Example Example of insulation
Insulating tape

If the (+)and(-) side of the battery is reverse inserted, it may cause ashort-circuit or over discharge of the battery on some equipment and it
may induce overheating, explosion or fire.

discharge

discharge

Contacting between batteries cause
short-circuiting such as above diagram.

CAUTION!
1. If leaked liquid gets in the eyes, wash them with cleanwater and consult a physician immediately.
2. Do not use new and used batteries together. Do not use
different types of batteries together.
It may cause fire, heat generation, leakage or bursting.

3. If you connect two or more batteries in series or parallel,
please consult us in advance.
It may cause bursting or fire due to unbalanced load or voltage.

4. Do not use nor leave the batteries in direct sunlight nor
in high-temperature areas.
It may cause fire, heat generation, leakage or bursting.

5. Do not apply strong pressure to the batteries nor handle
roughly.
It may cause fire, heat generation, leakage or bursting.

6. Avoid contact with water.
It may cause heat generation.

7. Keep batteries away from direct sunlight, high temperatureand humidity.
It may cause heat generation or performance deterioration.

8. Do not make batteries airtight by sealing it with adhesive
agent or coating agent.
It may cause short-circuit because of generated and accumulated
electrolyte gas.

For prevention of performance deterioration of battery
1. Pay attention to mat or sheet for ESD

3. Pay attention to material of jig for pick and place

Battery with tabs or battery on PCB may short circuit on the mat for ESD.
As a result, the voltage of the cell is reduced.

2. Pay attention to soldering by tips
Do not touch the battery by soldering iron tips directly.
Keep any high temperature process away from battery.

Use non-conductive material of jig for pick and place of batteries, for shortcircuit protect. If short-circuit of battery occurs, the voltage of battery drops
down quickly but raises gradually.

4. Pay attention to washing and drying
Some detergent or high temperature drying may cause deteriorate of battery.
If you need to wash batteries, consult us.

International Transportation and Disposal• International Air / Marine / Ground Transportation

Lithium batteries are classified as Class 9 dangerous goods by the UN
Recommendations, and related organizations such as IATA, ICAO, IMO,
and DOT have established regulations on air, ship, and land transportation
based on the UN Recommendation.
[ Transporting our lithium batteries by air ]When transporting lithium batteries by air, in addition to the requirementsof the UN Recommendations, all the requirements of the “IATA Dangerous
Goods Regulations (IATA-DGR)” must be met. Furthermore, for airtransportation to and from the United States, the requirements of the “Codeof Federal Regulations (49CFR)” must also be met.
Our lithium batteries correspond to the category of lithium metal batteries
with a lithium content of 1 g or less and meet the requirements of UN Manualof Tests and Criteria, Part III, sub-section 38.3, so they can be transported
as Class 9 Dangerous Goods. For details, please contact us.
Our shipping packaging specifications meet the requirements of UN
recommendations and the above regulations. If you use our original
packaging and need any certificates for the transportation, please contact us
through your purchasing route. If you pack the lithium batteries yourselves,please note that you will need to conduct your own packaging tests andcertifications.

26

When shipping lithium batteries by air, only cargo aircraft are allowed totransport them.
Each carrier may have its own voluntary regulations, so please check witheach carrier in advance for details.
[Transporting our lithium batteries by sea]
Our lithium batteries are subject to the International Maritime Dangerous
Goods Code (IMDG-Code) Special Provision 188 (SP188), and can betransported as exempted dangerous goods if they do not exceed 30kg per
package and meet all the IMDG-Code transport requirements.

• Disposal

Recently environmental protection regulations have increased and battery
disposals are regulated globally.
Such regulations are different in each country, state, and municipality.
Please consult your local authorities regarding the specific regulations inyour area.

Micro-Energy Division capacitors (CPH, CPM) contain flammable organic solvents. For your safety, please
follow the following precautions.

WARNING!
• Do not charge by higher current or higher voltage thanspecified.
Doing so may generate gas inside the capacitor, resulting in swelling,
fire, heat generation or bursting.

• Do not reverse placement of (+) and (-)
SII capacitors have polarity. If the (+) and (-) side of the capacitor is reverse
inserted, it may cause short-circuit or over discharge of the capacitor
on some equipment and it may induce overheating, explosion or fire.

• Keep capacitors out of children’s reach.
It is dangerous that children swallow the capacitor.
When you design mechanical hardware around the capacitor, please fix
the capacitor firmly in order to prevent children from removing it.

When you store the capacitors, please keep the capacitors out ofchildren’s reach. If a capacitor is swallowed, consult a physician
immediately.

• Do not heat, disassemble nor dispose of in fire
Doing so damages the insulation materials and may cause fire, heatgeneration, leakage or bursting.

• Do not discharge by force
If the capacitor is discharged by direct connection to an external power
supply etc., voltage of the capacitor will decline lower than 0 volts(electrical reversal) and will cause the capacitor case to expand, overheat,leak, explode or burn.

• In case of leakage or a strange smell, keep away fromfire to prevent ignition of any leaked electrolyte.

CAUTION!
• If leaked liquid gets in the eyes, wash them with cleanwater and consult a physician immediately.
• Do not use nor leave the capacitors in direct sunlight nor
in high-temperature areas.
It may cause fire, heat generation, leakage or bursting.

• When using molding resin or coating resin, check carefully
the ingredients and hygroscopicity of them.
Some kind of resin may cause deterioration or corrosion.

• Do not use new and used capacitors together. Do not use
different types of capacitors together.
It may cause fire, heat generation, leakage or bursting.

• If you connect two or more capacitors in series or parallel,
please consult us in advance.
It may cause bursting or fire due to unbalanced load or voltage.

• Keep capacitors away from direct sunlight, hightemperature and humidity.
It may cause heat generation or performance deterioration.

For using SII Silver Oxide batteries, please follow the following precautions.

WARNING!
• Do not heat, disassemble nor dispose of in fire
Doing so damages the insulation materials and may cause fire, heatgeneration, leakage or bursting.

• Do not short.
If the (+) and (-) come into contact with metal materials, shortcircuit
occurs. As a result, fire, heat generation, leakage or bursting may occur.

• Keep batteries out of children’s reach.
It is dangerous that children swallow the battery.
When you design mechanical hardware around the battery, please fix thebattery firmly in order to prevent children from removing it.

When you store the batteries, please keep the batteries out of children’s
reach.
If a battery is swallowed, consult a physician immediately.

• If leaked liquid, alkaline, get in the eyes, do not rub them,
wash them with clean water and consult a physician
immediately.
• If leaked liquid, alkaline, stick to clothing, for protectingfrom irritation, wash them with clean water immediately.

CAUTION!
• Do not reverse placement of (+) and (-)• Do not solder directly to the battery• Do not use new and used batteries together. Do not use
different types of batteries together.
• Do not charge.
• Do not use nor leave the batteries in direct sunlight nor
in high-temperature areas.
• Keep batteries away from direct sunlight, high temperatureand humidity.
• Avoid letting battery contact water.

IMPORTANT

1. The information herein is subject to change without notice.
2. Neither reproduction, duplication nor unauthorized use of this catalog
in whole or part is allowed without the prior written approval of Seiko
Instruments Inc.
3. The colors of the products reproduced herein (“Products”) may bedifferent from the actual colors. Check colors on actual products before
using the Products.
4. Circuits and respective application methods described herein are forreference only. Seiko Instruments Inc. shall not be liable for any damages
or losses resulting from any claim by third parties that any Products
or application methods described herein infringe any right intellectual
property right. All intellectual property rights with respect to the Products
belong exclusively to Seiko Instruments Inc.

• Make sure to insert batteries without having (+) and (-)
come in contact with metal parts of equipment.
• Read the equipment instruction manual and precautions
carefully before using. Some usage or types of equipment
do not suit the specifications or performance of thesebatteries.
• Remove batteries from the equipment, if finished using.
Do not leave batteries connecting with equipment afterusing.
• In case of disposal, insulate between (+) and (-) of battery
by an insulating material.
Seiko Instruments Inc. does not grant users of the Products any rightor license to the Products hereunder.
5. When Products include Strategic Products (or Services) stipulated in theForeign Exchange and Trade Control Law, they shall not be exported
without permission of governmental authorities.
6. The Products are designed for consumer equipment and cannot be
used as part of any device or equipment which influences the humanbody or requires a significantly high reliability, such as physical exercise
equipment, medical equipment, disaster prevention equipment, gas
related equipment, vehicles, aircraft and equipment mounted on vehicles
without our prior express written consent.

All data, dimensions, characteristics and values shown in this catalogue are for reference only.
Please contact your local Seiko Instruments Representative for current detailed specifications.

27

Micro-Energy Division who manufactures the products described inthis catalog holds the ISO 9001 quality management system
certificate, and the ISO 14001 environmental management systems
certificate.

www.sii-me.com

Electronic Components Sales Head Office
1-8, Nakase, Mihamaku, Chiba-shi, Chiba 261-8507, Japan
Telephone:+81-43-211-1735 Facsimile:+81-43-211-8034

Asia

Seiko Instruments Trading (H.K.) Ltd.

7/F, Ying Tung Industrial Building,
802 Lai Chi Kok Road, Kowloon, Hong Kong
Telephone: +852- 2494-5111
Facsimile: +852- 2424-0901

Seiko Instruments Taiwan Inc.
2F., No. 143, Changchun Rd.,
Taipei, Taiwan R.O.C.
Telephone: +886-2-2563-5001
Facsimile: +886-2-2563-5580

Seiko Instruments (Shanghai) Inc.
Room 2701, 27th Floor,
Shanghai Plaza,
138 Mid Huaihai Rd.,
Shanghai 200021, China
Telephone: +86-21-6375-6611
Facsimile: +86-21-6375-6727

Seiko Instruments (Shanghai) Inc.
Shenzhen Branch

Room 2215, Office Tower, Shun Hing
Square Di Wang Commercial Centre,
5002 Shen Nan Dong Road, Shenzhen,
518008, China
Telephone: +86-755-8246-2680
Facsimile: +86-755-8246-5140

EuropeSeiko Instruments GmbH
Siemensstrasse 9
D-63263 Neu Isenburg, Germany
Telephone: +49-6102-297-0
Facsimile: +49-6102-297-50100
Email:info@seiko-instruments.de
http://www.seiko-instruments.de

North/Central/South America

Seiko Instruments U.S.A., Inc.

21221 S. Western Ave., Suite 250,
Torrance, CA 90501, U.S.A.
Telephone: +1-310-517-7802
Facsimile: +1-310-517-7792
Email:info@seikoinstruments.com
http://www.sii-me.com

Contact us(Specifications are subject to change without notice.)

Released in April 2023
Copyright©2023 Seiko Instruments Inc. All Right Reserved.

No.BAC3022EJ-05P2304