F26P S12CURRENT SENSORS

1/51 2001

Fluxgate system / Voltage-output type, Through Type

F26P150S12【STANDARDS】
・EN 62477-1

Introduction

RoHS

Parameters

Symbol

Unit

Value

Supply voltage

Vcc

V+14.5

Primary conductor temperature

―℃

100

External voltage applied to Vref(out) terminal―

V

5Symbol

Unit

Value

Vd―

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

Comment

Fluxgate system

ABSOLUTE MAXIMUM RATINGS

Vref (out) terminal has only output function.
There is no input function.

ISOLATION CHARACTERISTICS

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

VwkV

10Insulation resistance

RIS―≧ 500M Ω（at DC500V）

Primary ⇔ Secondary

Clearance distancedClmm

12.7（MIN）

Primary ⇔ Secondary

Creepage distancedCpmm

12.7（MIN）

Primary ⇔ Secondary

Case material――

UL94 V-0

Comparative Tracking Index；
（CTI）

CTIV

600 (group Ⅰ)

ENVIRONMENTAL AND MECHANICAL CHARACTERISTICS
ValueParameters

SymbolUnit

Ambient operating temperature

TA℃－ 40＋ 85

Ambient storage temperature

TS℃－ 40＋ 85Massmg

MIN

TYP

38.557MAX

CommentOpen loop

lnsulation voltage

Comment

Closed loop

Parameters

F26P S12CURRENT SENSORSSPECIFICATIONSIntroduction
Fluxgate system

Value

SymbolUnit

Primary nominal current

IPN

A

Primary current, measuring range（at Vcc= ＋12V，Ta= ＋ 85℃）

IPM

A

Number of secondary turns

NsT

Supply Voltage

Vcc

V

Consumption current (at IP=0 A)

Icc

mA

Vref(out)V

Output voltage（at Ip=0A）

Vout

V

Electrical offset voltage ＊ 2VoemVElectrical offset current referred to primary

IoemATemperature coefficient of Vref (out)TCVrefppm/K±50

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

TCVo

ppm/K

±10

Theoretical sensitivity

GthmV/A

Sensitivity error ＊ 3εG%Temperature coefficient of Sensitivity (at TA= −40℃～ +85℃ )

TCG

ppm/K

Linearity error (at IPN) ＊ 3εL%Peak to peak output ripple at oscillator frequency (f typ=600kHz)

―mV

16

RL=1 k Ω , at Ip=0 A

Reaction time (at 10% of IPN) ＊ 3

traµs

１RL=1 k Ω , di/dt=100 A/µsResponse time (at 70% of IPN）＊ 3

trµs

１RL=1 k Ω , di/dt=100 A/µs

Frequency bandwidth ( ± 3 dB) ＊ 3 ＊ 4BWkHz100RL=1 k ΩOverall accuracy ＊ 3

XG%Reference voltage（output）(at IP=0 A）＊ 1Open loop

1 2001

TA=+25℃，RL=OPEN，Vcc=+12V

Parameters

Closed loop

2/5

MIN

TYP

CommentMAX

150
－ 450

450
2150

11.4

1212.6

36.5
2.495

2.500

Icc=36.5+Ip/Ns+Vout/RL

2.505

No Load－ 1.0+1.0

Voe=Vout(at Ip=0 A)-Vref(out)－ 240+240

Vref(out)

ppm/K of 2.5 V（－40℃～＋85℃）
625 mV(at IPN),
Gth=|Vout-Vref(out)|/IPN

4.167
－ 0.7

+0.7
±40－ 0.1－ 0.96＊1 If the output impedance of the Vref (out) pin is small, the accuracy of the reference voltage will decrease.

+0.1

+0.96

＊2 Offset voltage value is after removal of core hysteresis.
＊3 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 (bus bar).

＊4 High fundamental frequency primary current and/or harmonic current may result in excessive heating in magnetic core.

58

XG=(100 × Voe/625)+εG+εL

F26P S12CURRENT SENSORS

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1 2001

STANDARDSEN62477-1:2012, EN62477-1:2012/A1:2017 and EN62477-1:2012/A11:2014
Rated voltage

600V, CAT Ⅲ , PD2, Reinforced isolation, non uniform field

CHARACTERISTIC CURVE (TYP)
Introduction

Output Voltage
Vout［V］

2.5=Vref(out)0.625-450-IPN

0Primarycurrent
Ip［A］

IPN +450

Fluxgate system

4.375

F26P150S12Open loop

Figure 1：Linearity curve

SUPPORT DOCUMENTATION
Maximum repetitive primary current

Closed loop

F26P150S12 Derating<Conditions>Primary conductor temperature = 85℃
Vcc = +12V

Figure 2：Ip vs TA for F26P150S12

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 < Absolute maximum rating of internal components.
③ Resistor power dissipation < 0.5 x rated power

Reference voltage
The Vref(out) pin is used for output only. A precision internal reference voltage of 2.5V can be used as a reference point for bipolarmeasurements. An external reference voltage cannot be input for use.
If you do not want to use the Vref(out) pin, please unconnected.

59

F26P S12CURRENT SENSORSCONNECTION

F26P150S12
Primary input
current (+)

1Ip

Int REF

Fluxgate system

Introduction

4+Rm

Primary input
current (-)

OUT-310ΩVcc

Vref(out)

Vout

1nF
2GND

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

Open loop

Country of production
Lot No.

Closed loop

Product name

Size：4−□0.7

Terminal No.
① Vcc（+12V）② GND③ Vout④ Vref（OUT）

Size：2−φ1.75±0.15

60

4/5

1 2001

F26P S12CURRENT SENSORS

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1 2001Introduction

RECOMMENDED HOLE DIAMETER (mm)

②

③④ ⑤

F26：Series② Mounting configuration（1 figure)
P：PCB Mounting type③ Primary nominal current（3 figures）
150：150A④ Control power supply type（1 figure)
S：Single supply⑤ Power supply voltage（2 digits)
12：+12V

Open loop①① Model（3 figures)

Closed loop

F26 P 150 S 12

Fluxgate system

TYPE DESIGNATION

61

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 of

products 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 or

4. 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 thatProduct. Please use TAMURA products in compliance with allthese may entail.

applicable laws and regulations that regulate the inclusion or

5. 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 completelycharacteristic 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 platingratio.（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