• GENERAL DATA

    •Ambient Operating Temperature: -40 to +105 °C

    •Ambient Storage Temperature: -40 to +105°C

    •RMS Voltage for AC Insulation: 4.3 kV

    •Creepage Distance: >140 mm

    •Clearance Distance: > 140 mm

  • ABSOLUTE MAXIMUMS

    •Over-Voltage VDD Protection: +10 V

    •Reverse VDD Protection: -10 V

    •Output Voltage Max: +10 V

    •Output Current Max: +/- 70 mA

    •Reverse Output Voltage Max: -0.3 V

    •Reverse Output Current Max: -50 mA

NOTES

•All specifications at 25°C.

•Specifications dependent on mechanical attachment.

•Specifications are % full scale.

•Output slope is dependent on Vdd. Specifications above assumes 5Vdd.

•Vref = 50%Vdd +/- 1%

•We recommend mounting the sensors with non-magnetic screws for maximum accuracy. We recommend stainless steel, brass, bronze, copper or aluminum.

•Specifications subject to change without prior notice.

Frequently Asked Questions (FAQs)

What should designers consider when selecting a model?

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Match current range, output slope, bandwidth requirements, isolation needs, and wiring layout for the intended system.

How does the ISB-A 802 differ from the ISB-A 800?

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The ISB-A-800 uses a 1.00 mm pitch shrouded header connector (JST BM04B-SRSS-TB with the appropriate mating connector), providing a creepage distance of 8.5 mm. In contrast, the ISB-A-802 is supplied with stranded #22 AWG UL3239-rated lead wires, rated for 3 kV. The standard 150 mm lead length significantly increases the creepage distance to 158.5 mm, with custom lead lengths available upon request.

What current ranges does the ISB-A 802 support?

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Variants measure currents from ±100 A to ±670 A, making the series suitable for a wide range of industrial and power-conversion applications.

Can the sensor measure both AC and DC signals?

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Yes — the DC–200 kHz bandwidth supports DC, low-frequency AC, switching waveforms, and high-speed transient detection.

Why is the 4300 VAC isolation important?

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It ensures safe separation between high-voltage power paths and low-voltage control electronics, critical for converters, inverters, and battery packs.

What type of output does the sensor provide?

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A ratiometric analog voltage proportional to sensed current. The slope depends on the variant (e.g., 20 mV/A or 6.67 mV/A).

Where is the ISB-A 802 especially useful?

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In systems requiring remote placement of the sensor — such as inside power cabinets, harnesses, or areas with mechanical constraints.

Is the response time suitable for protection circuits?

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Yes — the ~3 µs response allows fast overcurrent detection and stable control-loop feedback.

What are the power supply requirements?

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The device operates from a regulated 5 V ±0.5 V supply for consistent analog output.

How should the sensor be mounted for best accuracy?

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Secure placement with non-magnetic hardware is recommended to prevent magnetic distortion. We recommend mounting the sensors with non-magnetic screws for maximum accuracy - materials such as stainless steel, brass, bronze, copper or aluminum.