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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Description Price Sensor Technology Nominal Current Output Current Range Supply Voltage Transformer Type Sensor Type Mounting Type Frequency Bandwidth Accuracy Bore Size Minimum Operating Temperature Series Maximum Operating Temperature Depth
RS庫存編號 650-560
製造零件編號CSLA1CF
BrandHoneywell
HK$238.43
單位
Open Loop 0 → 100A - 8 → 16 V dc - Hall Effect PCB Mount - - 10.9mm -25°C CSL +85°C 10.4mm
RS庫存編號 451-1346
製造零件編號LF 205P
BrandLEM
HK$370.00
單位
Closed Loop 0 → 420A 100mArms 12 → 15 V - Hall Effect PCB Mount DC to 100 kHz ±0.5 % 15.5mm -40°C LF +85°C 19.5mm
RS庫存編號 451-1396
製造零件編號LF 1005S
BrandLEM
HK$1,380.00
單位
Closed Loop 0 → 1500A 200mArms 15 → 24 V - Hall Effect Panel Mount DC to 150 kHz ±0.4 % 40.5mm -40°C LF +85°C 34.3mm
RS庫存編號 321-6315
製造零件編號LTS 15NP
BrandLEM
HK$142.78
單位
Closed Loop 0 → ±48A - 5 V - Hall Effect PCB Mount DC 100 to 200 kHz ±0.2 % 3.2mm -40°C LTS +85°C 10mm
RS庫存編號 790-1216
製造零件編號ACF-3000AK
BrandAmprobe
HK$2,654.28
單位
- 30A - 3 V - Rogowski Coil Panel Mount 10 Hz → 20 kHz ±1 % 14.3mm -20°C - +85°C -
RS庫存編號 497-221
製造零件編號LA 25-P
BrandLEM
HK$320.68
單位
Closed Loop 0 → 55A 25mArms 12 → 15 V - Hall Effect PCB Mount DC to 200 kHz ±1.25 % - -25°C LA +85°C 14.45mm
RS庫存編號 451-1380
製造零件編號LF 505S
BrandLEM
HK$1,030.00
單位
Closed Loop 0 → 800A 100mArms 15 → 24 V - Hall Effect Panel Mount DC to 100 kHz ±0.6 % 30.2mm -40°C LF +70°C 40mm
RS庫存編號 919-4696
製造零件編號LF 210-S
BrandLEM
HK$364.37
單位
Closed Loop ±420A ±0.21A ±11.4 → ±15.75 V - - Panel Mount 100 kHz ±0.2 % - -40°C LF +85°C 24.2mm
RS庫存編號 121-8179
製造零件編號CSLA2DK
BrandHoneywell
HK$391.83
單位
- 20 Maximum of 400A 6 → 12 V dc - Hall Effect PCB Mount - - - -25°C CSL +85°C 14.2mm
RS庫存編號 793-4587
製造零件編號HLSR 20-P
BrandLEM
HK$64.00
單位
Open Loop 50A 20A 4.5 → 5.5 V - Hall Effect PCB Mount 400 kHz ±1 % - -40°C HLSR +105°C 21mm
RS庫存編號 169-7656
製造零件編號CSLA2DK
BrandHoneywell
HK$387.026
個 (以毎盒:50)
單位
- - Maximum of 400A 6 → 12 V dc - Hall Effect PCB Mount - - - -25°C CSL +85°C 14.2mm
RS庫存編號 793-4590
製造零件編號HLSR 40-P
BrandLEM
HK$78.28
單位
Open Loop 100A 40A 4.5 → 5.5 V - Hall Effect PCB Mount 400 kHz ±1 % - -40°C HLSR +105°C 21mm
RS庫存編號 497-401
製造零件編號LAX 100-NP
BrandLEM
HK$198.58
單位
Closed Loop 0 → 160A 50mA 11.4 → 15.75 V - Hall Effect PCB Mount >300 kHz ±0.91 % - -40°C LAX +85°C 16.35mm
RS庫存編號 532-9198
製造零件編號HAIS 50-P
BrandLEM
HK$179.45
單位
Open Loop ±150A - 5 V - Hall Effect PCB Mount DC to 50 kHz ±1 % 15 x 8mm -40°C HAIS +85°C 14mm
RS庫存編號 321-6286
製造零件編號LAH25-NP
BrandLEM
HK$183.66
單位
Closed Loop 25A 25mArms 12 → 15 V - Hall Effect PCB Mount DC to 200 kHz ±0.3 % - -25°C LAH +85°C 14.93mm
RS庫存編號 919-4703
製造零件編號LF 1010-S
BrandLEM
HK$743.86
單位
Closed Loop ±2700A ±0.54A ±14.25 → ±25.2 V - - Panel Mount 200 kHz ±0.4 % - -40°C LF +85°C 43.9mm
RS庫存編號 864-0889
製造零件編號CTSR_1-P
BrandLEM
HK$356.68
單位
Closed Loop ±1.7A - 7 V - - PCB Mount 9.5 kHz 1.9 % 20.1mm -40°C CTSR +105°C 17.9mm
RS庫存編號 532-9160
製造零件編號HAIS 200-P
BrandLEM
HK$233.47
單位
Open Loop ±600A - 5 V - Hall Effect PCB Mount DC to 50 kHz ±1 % 15 x 8mm -40°C HAIS +85°C 14mm
RS庫存編號 206-2381
製造零件編號HAL 50-S
BrandLEM
HK$388.50
單位
Open Loop ±150A - 15 V - Hall Effect Panel Mount DC to 50 kHz ±1 % 20 x 15mm -25°C HAL +85°C 31.3mm
RS庫存編號 793-4581
製造零件編號HLSR 32-P
BrandLEM
HK$58.31
單位
Open Loop 80A 32A 4.5 → 5.5 V - Hall Effect PCB Mount 400 kHz ±1 % - -40°C HLSR +105°C 21mm