F26P S05ACURRENT SENSORS

1/81 1907

Fluxgate system / Voltage-output type, Through Type

F26PxxxS05A SERIESIntroduction

RoHS

F26PxxxS05A series is a model that output voltage waveform distortion improvement of the F26PxxxS05 series.
For details, please refer to supplementary material(P6).

Parameters

Symbol

Unit

Value

Supply voltage

Vcc

V+7

Primary conductor temperature

―℃

105

ESD（HBM: Human Body Model）

―

kV

4

Comment

Fluxgate system

ABSOLUTE MAXIMUM RATINGS

C=150 pF, R=330 Ω

ISOLATION CHARACTERISTICS

VdUnitValue―AC4300 V，for 1minute(Sensing current 0.5 mA)

Comment
Primary ⇔ Secondary
Primary ⇔ Secondary
Input waveform：
・Front time 1.2 µs
・Time to half value 50 µs
・singleImpulse withstand voltage

VwkV

10lnsulation Resistance

RIS―≧ 500M Ω（at DC500V）

Primary ⇔ Secondary

Clearance distancedClmm12.7（MIN）

Primary ⇔ Secondary

Creepage distancedCpmm

12.7（MIN）

Primary ⇔ Secondary

Case material――

UL94 V-0

Comparative Tracking Index；
（CTI）

CTIV

600 (group Ⅰ)――600V，CAT Ⅲ，PD2

Reinforced isolation, non uniform field according
to EN62477-1:2012 and EN62477-1:2012/
A11:2014.

――

1000V，CAT Ⅲ，PD2

Basic isolation, non uniform field according
to EN62477-1:2012 and EN62477-1:2012/
A11:2014.

Application example

ENVIRONMENTAL AND MECHANICAL CHARACTERISTICS
Value

Parameters

SymbolUnit

Ambient operating temperature

TA℃－ 40＋ 85

Ambient storage temperature

TS℃－ 40＋ 85

Massmg

MIN

TYP

3349

MAX

CommentOpen loop

lnsulation voltage

SymbolClosed loop

Parameters

F26P S05ACURRENT SENSORSSPECIFICATIONS

Primary nominal current

Symbol

Unit

Value
MIN

TYP

IPNA

100150IntroductionF26P150S05A
Primary current, measuring range（at Vcc= ＋ 5V，Ta= ＋ 85℃）

F26P050S05A

Number of secondary turns

F26P050S05A

F26P100S05A

IPM

A－ 150150－ 270

270－ 230

F26P150S05A
F26P100S05A

Fluxgate system

230

Ns

T

1258
1588

Supply Voltage

Vcc

V

Consumption current (at IP=0 A)

Icc

mA

Reference voltage（output）(at IP=0 A）

Vref1

V

2.495

Reference voltage（input）

Vref2

V

0

Output voltage（at Ip=0A）

Vout

V

Electrical offset voltage ＊ 1VoemV－ 1.0－ 80+80

IoemA－ 160+160－ 240－ 240

F26P050S05A
F26P100S05A
F26P150S05A

4.75

5.00

5.25

202.500

Icc=20+Ip/Ns+Vout/RL

2.505

Ref OUT mode

4Ref IN mode

Vref1,Vref2+1.0

Temperature coefficient of Vref1

TCVref1

ppm/K

± 50

Temperature coefficient of Output voltage (at Ip=0 A）

TCVoppm/K± 10

GthmV/A

Theoretical sensitivity

Voe=Vout (at Ip=0 A)-Vrefppm/K of 2.5 V（－40℃～＋85℃）

12.50

F26P050S05A
F26P100S05A＊41258

F26P150S05A

Electrical offset current referred to primaryCommentMAX50F26P050S05A
F26P100S05A

Open loop

1 1907

Ta=+25℃，RL=10kΩ，Vcc=+5V

Parameters

625 mV (at IPN)
Gth=|Vref-Vout|/IPN

6.25
4.17

F26P150S05A

Closed loop

2/8

Sensitivity error ＊ 2εG%Temperature coefficient of Sensitivity（at Ta= － 40℃～＋ 85℃）

TCG

ppm/K

Sensitivity linearity error (at IPN) ＊ 2εL%Peak to peak output ripple at oscillator frequency (f typ=450kHz)

―mV

16

RL=1 k Ω , at Ip=0 A

Reaction time (at 10% of IPN) ＊ 2traµs1

RL=1 k Ω , di/dt=100 A/µs

Response time (at 70% of IPN）＊ 2trµs1

RL=1 k Ω , di/dt=100 A/µs

Frequency bandwidth ( ± 3 dB) ＊ 2 ＊ 3BWkHz

100RL=1 k ΩOverall accuracy ＊ 2

XG%－ 0.7

+0.7
± 40

－ 0.1

－ 0.96

+0.1

+0.96

＊1 Offset voltage value is after removal of core hysteresis.
＊2 Measurement condition : Primary conductor (bus bar) cross sectional area is as same as through hole, and penetration with 1turn in through hole.

Differences occur depending on the conditions of the primary conductor (busbar).

＊3 High fundamental frequency primary current and/or harmonic current may result in excessive heating in magnetic core.
＊4 The measurement range is less than F26P100S05.

50

XG=(100 × Voe/625)+εG+εL

F26P S05ACURRENT SENSORS

3/81 1907

STANDARDSEN62477-1:2012 and EN62477-1:2012/A11:2014 , UL508 (File No.E243511)※ Please refer to the another sheet about conditions of UL Recognition.

Output Voltage
Vout［V］

55(4.375)(4.1875)

2.5(=Vref1)

2.5(=Vref1)(0.625)-150-IPN0IPN +150(0.8125)

Primarycurrent
Ip［A］-270-IPN

0IPN +270

Primarycurrent
Ip［A］

Fluxgate system

Output Voltage
Vout［V］

Introduction

CHARACTERISTIC CURVE (TYP)

F26P100S05A

F26P050S05A
Figure 1：Linearity curve（Internal reference voltage）

Figure 2：Linearity curve（Internal reference voltage）

Open loop

Output Voltage
Vout［V］
5(3.459)(1.541)-230-IPN0

IPN +230

Closed loop

2.5(=Vref1)

Primarycurrent
Ip［A］

F26P150S05A
Figure 3：Linearity curve（Internal reference voltage）

51

F26P S05ACURRENT SENSORSSUPPORT DOCUMENTATION

Maximum repetitive primary current

F26P100S05A Derating

Fluxgate system

Introduction

F26P050S05A Derating

Figure 4：Ip vs TA for F26P050S05A

Figure 5：Ip vs TA for F26P100S05A

Open loop

F26P150S05A Derating

Figure 6：Ip vs TA for F26P150S05A

Closed loop

According to which the following conditions are true the maximum repetitive primary current plot shows
the boundary of the area.
① Ip ＜ Ipm② Junction temperature Tj ＜ 125℃
③ Resistor power dissipation ＜ 0.5 x rated power

52

4/81 1907

F26P S05ACURRENT SENSORS

5/81 1907

SUPPORT DOCUMENTATION
Reference voltage
The Ref pin has two modes Ref IN and Ref OUT.
＜ Ref OUT mode ＞
The 2.5 V internal precision reference is used by the transducer as the reference point for bipolar measurements.
Introduction＜ Ref IN mode ＞
An external reference voltage is connected to the Ref pin. this voltage is specified in the range 0 to 4 V.
its voltage is used as the reference voltage at the time of measurement.
-either to source a typical current of (Vref2-2.5)/680,the maximum value will be 2.2 mA typ.when Vref2 ＝ 4 V.
-or to sink a typical current of (2.5-Vref2)/680,the maximum value will be 3.68 mA typ.when Vref2 ＝ 0 V.
The following graphs show how the measuring range of each transducer version depends on external reference voltage value Vref2.

Open loop

Fluxgate system

RL=1 k Ω , Vcc=+5 V, TA=-40 ～ +85 ℃

e. g. ; In case of F26P100S05A
Upper limit：Ip ＝ +270 A
Ip ＝ +270-(Vref2-3.16 V)/0.00625
Lower limit：Ip ＝－ 270 A
Ip ＝－ 270-(Vref2-1.84 V)/0.00625

Figure 9：IPM vs Vref2 for F26P150S05A

If you do not want to use the Ref pin, please unconnected.

53（Vref2=0 V ～ 3.16 V）（Vref2=3.16 V ～ 4 V）
（Vref2=1.84 V ～ 4 V）
（Vref2=0 V ～ 1.84 V）

Closed loop

Figure 8：IPM vs Vref2 for F26P100S05A

Figure 7：IPM vs Vref2 for F26P050S05A

F26P S05ACURRENT SENSORSSUPPORT DOCUMENTATION
Information on F26PxxxS05A series.
F26PxxxS05A series is a model that output voltage waveform distortion improvement of the F26PxxxS05 series.
Please select according to the application.

Closed loop

Open loop

Fluxgate system

Introduction

e. g. F26P100S05A
Measurement condition TA=25 ℃ RL=1 k Ω Ip=20 A

Vcc=+5 V

Primary conductor (bus bar) cross sectional area is as same as through hole, and penetration
with 1turn in through hole.

Output Voltage
100mV/div

Output Voltage
100mV/div

Primary Current
10A/div

Primary Current
10A/div

Output Voltage
100mV/div

Output Voltage
100mV/div

Primary Current
10A/div

Primary Current
10A/div

Differences occur depending on the conditions of the primary conductor (busbar).
Please use it after actual machine verification.

546/81 1907

F26P S05ACURRENT SENSORS

7/8

1 1907

CONNECTIONIp

1680Ω

Int REF

40kΩ
10kΩ

Primary input
current (-)

Rm10kΩ

410nF+

OUT-31Ω

40kΩ

Vcc
Vref(IN/OUT)
Vout

10pF
2Introduction

Primary input
current (+)

GND

Fluxgate system

F26PxxxS05A Series

DIMENSIONS (mm)
※ Tolerance: ± 0.5
Unit: mm

Lot No.

Closed loop

Product nameOpen loop

Country of production

Size：4-□0.7

Terminal No.
① Vcc（+5V）② GND③ Vout④ Vref（IN/OUT）

Size：2-Φ1.75±0.15

55F26P S05ACURRENT SENSORSIntroduction

RECOMMENDED HOLE DIAMETER (mm)Fluxgate system

TYPE DESIGNATION

F26 P xxx S 05 A①②③④ ⑤ ⑥① Model（3 figures)
F26：Series② Mounting configuration（1 figure)
P：PCB Mounting type③ Measurement current range（3 figures）
050： 50A
100：100A
150：150A

Open loop④ Control power supply type（1 figure)
S：Single supply⑤ Power supply voltage（2 digits)
05：15V⑥ Special specification(none) : Standard type.
A: Output voltage waveform distortion

Closed loop

improvement type.

56

8/81 1907

Notices

CURRENT SENSORS

1/1

3 1510

Important Notice
7. This product is not designed to resist radiation.

1. The content of this information is subject to change without

vehicle equipment, safety devices, and so on) in which・U se in liquids such as water, oil, chemical solutions, ororganic solvents, and use in locations where the product will
be exposed to such liquids.
・U se that involves exposure to direct sunlight, outdoor
exposure, or dusty conditions.
・Use in locations where corrosive gases such as sea winds,Cl2, H2S, NH3, SO2, or NO2, are present. (Some productimproves durability)・U se in environments with strong static electricity orelectromagnetic radiation.
・Use that involves placing inflammable material next to theproduct.
・Use of this product either sealed with a resin filling or coatedwith resin.
・Use of water or a water soluble detergent for flux cleaning.
・Use in locations where condensation is liable to occur.

extremely high quality and high reliability is required, or if

8. D o not use or otherwise make available the TAMUTA

the malfunction or failures of product could be cause loss ofproducts or the technology described in this document for any

human life, bodily injury.

military purposes, including without limitation, for the design,prior notice for the purpose of improvements, etc. Ensure thatyou are in possession of the most up-to-date information whenusing this product.
2. T his product is intended to be used in general electronics
applications (electric home appliances, business equipment,
information equipment, communication terminal equipment,
measuring devices, industrial equipment, and so on). This
product is neither intended nor warranted for use in following
equipment or devices:
Special application (such as for medical devices,transportation equipment, traffic signal control equipment,
fire and crime prevention equipment, aeronautics andspace devices, nuclear power control, fuel control, in-Tamura Corporation shall not be held responsible for any

development, use, stockpiling or manufacturing of mass

damage incurred by customers or any third party when products

destruction weapons (e.g. nuclear, chemical, or biologicalare used in special application, unless specifically permitted inweapons or missile technology products). When exporting

this document.

and re-exporting the products or technology described in thisdocument, you should comply with the applicable export control

3. Tamura Corporation constantly strives to improve quality andlaws and regulations and follow the procedures required byreliability, but malfunction or failures are bound to occur withsuch laws and regulations including, without limitation, Japansome probability in current sensor. To ensure that failures do-Foreign Exchange and Foreign Trade Control Law and U.S.-

not cause accidents resulting in injury or death, fire accidents,

Export Administration Regulations. The TAMURA productssocial damage, and so on, users are to thoroughly verify theand related technology should not be used for or incorporated

safety of their designs in devices and/or systems.

into any products or systems whose manufacture, use, or saleis prohibited under any applicable domestic or foreign laws or4. The operation examples and circuit examples shown in thisregulations.

information are for reference purposes only, and Tamura
Corporation disclaims all responsibility for any violations of

9. Please contact your TAMURA sales office for details as toindustrial property rights, intellectual property rights and any

environmental matters such as the RoHS compatibility ofother rights owned by Tamura Corporation or third parties that

Product. Please use TAMURA products in compliance with allthese may entail.

applicable laws and regulations that regulate the inclusion or5. T he circuit examples and part constants listed in theseuse of controlled substances, including without limitation, thespecifications are provided as reference for the verification

EU RoHS Directive. TAMURA assumes no liability for damagesof characteristics. The user is to perform design, verification,or losses occurring as a result of your noncompliance withand judgment under his or her own responsibility, taking into

applicable laws and regulations.

account the various conditions.

10. T
 AMURA assumes no liability for damages or losses incurred by
you or third parties as a result of unauthorized use of TAMURA

6. T he products are designed for use in environments whereproducts.

consumer electronics are commonly used. It is not designed foruse in special environments such as listed below, and if such

11. T his document and any information herein may not be

use is considered, the user is to perform thorough safety andreproduced in whole or in part without prior written permission

reliability checks under his/her responsibility.

from TAMURA.

9

Appli note

CURRENT SENSORS

1/1

3 1709Application notes<General Considerations><Open loop>

1. T he sensor uses polar electronic components. When the

1. High frequency primary current may result in excessive heating

polarity of the power supply is mistaken, the sensor is damaged.

in iron magnetic core and cause damage to internal circuitry;

2. Static electricity or excessive voltage can increase an offset

for high frequency applications select current sensor with ferrite

voltage in the Hall element, and cause offset voltage to change.

core material.
2. If the measured current exceeds the rated current, magnetic

Please exercise care in handling and application.

core saturation will occur and the output voltage signal will not

3. In order to prevent the influence of noise, the use of twisted

be linearly proportional to the measured current.

cable or shielded cable for the output line is recommended
4. If using this device within a magnetic field generated by otherdevices, the specified accuracy may not be obtainable.

<Closed Loop>

5. O ur products（several models are excluded ）are adjusted

1. For closed loop current sensors please insure the power supply

with the trimming method by the measurement condition

voltage is balanced, symmetrical, and, applied simultaneously（Load resistance, Power supply voltage）of specification

to avoid potential increase in DC offset error.

sheets. Therefore, characteristics（Offset, Output, etc.）and its

2. Maximum rated current measurement duration is timedependent.

deviation may be changed in different circuit conditions from

Maximum rated current applied in excess of the time limit canthe measurement condition. All change characteristic items are

result in damage to internal electronic circuitry; please consult

not indicated on specification sheets.

Tamura for assistance.

6. The performance of current sensors with through-hole（aperture）

3. When using a measurement resistor to convert current output

is dependent on the position of the primary conductor. Tamura

to voltage output select a resistor with stable temperature

specifications are based on a primary conductor completely

characteristic to insure accuracy of the output voltage.

filling the through-hole（aperture）area.

4. Compensation current supplied to the secondary winding varies

7. T he current sensor rated current in DC Amps.

in proportion to the measured current based on the conversion

8. Please use mating connector with equivalent terminal plating

ratio.（If/KN; KN ＝ secondary turns）Please insure the PSU

material to insure proper operation and avoid possibility ofhas required current capacity to supply compensation current‘galvanic corrosion’.

to the secondary winding.

9. P lease do not store in high-temperature and high-humidity
storage environment. Please use it after confirming soldering<Flux-Gate>

when it is kept for six months or more.（product soldered with

1. Compensation current supplied to the secondary winding variessubstrate）
10. We recommend performing a zero offset adjustment by measuring

in proportion to the measured current. Please insure the PSU

the offset voltage at startup. In continuously operation for a few

has required current capacity to supply compensation current
to the secondary winding.

months, or at change of ambient temperature or humidity is large,

2. T here is 450kHz ripple voltage present on the output and

we recommend regularly performing a zero offset adjustment at

reference output voltage signals . An external capacitor maybe

being idling（it is clear that the current is not apply）.

added if necessary.

11. The current sensor doesn't have built-in protection circuit(devices and fuses, etc.). As a failure mode of the sensor,
there is a short circuit and open state. In the case of a shortcircuit state, the abnor-mal temperature rise of the internal
parts is assumed, and there is a possibility to smoke and toignite. If it is used in safety critical circuit blocks, please takeappropriate measures by protection devices, protection circuits,etc. For closed loop –type sensors and flux gate (closed looptype) sensors, the consumption current of the secondary power
supply varies in proportion to the measurement current.

7