Current Transducers

Current transducers, or current sensors, are an electrical component that detects electric current in a wire and converts it into another type of electrical signal proportional to the current value. The generated signal could be analogue voltage, current or a digital output. This generated signal can be then used to display the measured current in an ammeter, or can be used for the purpose of controlling other circuits.

Current Transducer Types

Current sensors can be either open-loop or closed-loop.
•Open-Loop Sensor: This type measures AC and DC currents and provides electrical isolation between the circuit being measured and the output of the sensor. Open-loop current sensors are generally preferred in battery-powered circuits.


•Closed-Loop Sensor: The Closed-Loop sensor is sometimes called a ’Zero-Flux’ sensor because it features a Hall-Effect sensor that feeds back an opposing current into a secondary coil, wound on the magnetic core to zero the flux produced in the magnetic core by the primary current. Closed-loop sensors are often used when high accuracy is essential.

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RS 제품 번호 435-8634
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제조사 부품 번호CSNE151-104
제조사Honeywell
₩25,743.95
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Closed Loop 0 → 56A 12.5mA 15 V dc - Hall Effect PCB Mount DC to 150 kHz ±1 % - -40°C CSN +75°C 12.7mm
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₩33,511.00
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Open Loop ±150A - 5 V - Hall Effect PCB Mount DC to 50 kHz ±1 % 15 x 8mm -40°C HAIS +85°C 14mm
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Open Loop ±300A - 15 V - Hall Effect Panel Mount DC to 50 kHz ±1 % 20.4 x 10.4mm -10°C HAS +80°C 30mm
RS 제품 번호 532-9227
제조사 부품 번호HTFS 400-P
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₩29,865.40
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Open Loop ±600A - 5 V - Hall Effect PCB Mount DC to 50 kHz ±1 % 22mm -40°C HTFS +105°C 17mm
RS 제품 번호 522-014
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Open Loop ±600A - 15 V - Hall Effect Busbar, Plug In DC to 25 kHz ±1 % 40.5 x 30.5mm -10°C HAT +80°C 37mm
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Open Loop ±150A - 15 V - Hall Effect Panel Mount DC to 50 kHz ±1 % 20 x 15mm -25°C HAL +85°C 31.3mm
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Open Loop 100A - 20 → 50 V dc - Hall Effect Panel Mount - ±2 % 21.7mm -20°C DK +50°C 30.2mm
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Closed Loop 25A 25mArms 12 → 15 V - Hall Effect PCB Mount DC to 200 kHz ±0.3 % - -25°C LAH +85°C 14.93mm
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제조사 부품 번호CKSR 25-NP
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₩22,741.60
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Closed Loop 25A - 5.25 V - - PCB Mount 200 → 300 kHz ±0.8 % - -40°C CKSR +105°C 13.4mm
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Closed Loop 6A - 5.25 V - - PCB Mount 200 → 300 kHz ±0.8 % - -40°C CASR +85°C 13.4mm
RS 제품 번호 793-4584
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₩16,239.35
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Open Loop 25A 10A 4.5 → 5.5 V - Hall Effect PCB Mount 400 kHz ±1 % - -40°C HLSR +105°C 21mm
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제조사 부품 번호LA 205-S
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₩131,312.90
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Closed Loop 0 → 300A 100mArms 12 → 15 V - Hall Effect Panel Mount DC to 100 kHz ±0.8 % 22.7 x 17.4mm -10°C LA +85°C 56.5mm
RS 제품 번호 181-2135
제조사 부품 번호CSLA2DG
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Open Loop 0 → 150A - 6 → 12 V dc - Hall Effect PCB Mount - - 15.7mm -25°C CSL +85°C 14.2mm
RS 제품 번호 301-9473
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Closed Loop 0 → ±80A - 5 V - Hall Effect PCB Mount DC 100 to 200 kHz ±0.2 % 3.2mm -40°C LTS +85°C 10mm
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Closed Loop ±3000A ±0.6A ±14.25 → ±25.2 V - - Panel Mount 150 kHz ±0.3 % - -40°C LF +85°C 52mm
RS 제품 번호 477-4711
제조사 부품 번호CSNS300M
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Closed Loop 0 → 600A 150mA 15 V - Hall Effect Busbar, PCB Mount DC to 150 kHz ±0.5 % 26mm -40°C CSN +85°C 19mm
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제조사 부품 번호LF 1010-S
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Closed Loop ±2700A ±0.54A ±14.25 → ±25.2 V - - Panel Mount 200 kHz ±0.4 % - -40°C LF +85°C 43.9mm
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