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 207-2984
製造零件編號LA 205-S
BrandLEM
HK$798.54
單位
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
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 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 666-8182
製造零件編號CASR 6-NP
BrandLEM
HK$199.75
單位
Closed Loop 6A - 5.25 V - - PCB Mount 200 → 300 kHz ±0.8 % - -40°C CASR +85°C 13.4mm
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 666-8205
製造零件編號CKSR 25-NP
BrandLEM
HK$142.41
單位
Closed Loop 25A - 5.25 V - - PCB Mount 200 → 300 kHz ±0.8 % - -40°C CKSR +105°C 13.4mm
RS庫存編號 446-0412
製造零件編號AK 5 C420L
BrandLEM
HK$1,820.00
單位
- 5A 4 → 20mA 24 V dc, 150 V ac - - Panel Mount 20 → 100 Hz ±1 % 19mm -20°C AK +50°C 23.7mm
RS庫存編號 793-4610
製造零件編號DVL 250
BrandLEM
HK$1,933.02
單位
- - 50mA ±15 → 24 V - - Panel Mount 14 kHz ±0.5 % - -40°C DVL +85°C 100mm
RS庫存編號 793-4632
製造零件編號ATO-75BILD10
BrandLEM
HK$214.46
單位
- 90A 90mA - - - - 50 Hz, 60 Hz ±1 % 10mm -25°C CAS +70°C 32mm
RS庫存編號 435-8678
製造零件編號HX 20-P
BrandLEM
HK$160.39
單位
Open Loop ±60A - 15 V - Hall Effect PCB Mount 50 kHz ±1 % 1.6mm -25°C HX +85°C 15.4mm
RS庫存編號 763-9769
製造零件編號CDS4015ABC-KA
BrandSensitec
HK$287.54
單位
- 15A 6mA 5 V - AMR Effect PCB Mount DC to 400 kHz 0.8 % - -40°C CDS4000 +105°C 15.5mm
RS庫存編號 499-5609
製造零件編號APR 100 B10
BrandLEM
HK$1,147.13
單位
Closed Loop 100A - 24 V dc - - DIN Rail 30 → 6000 Hz ±1 % 18mm -20°C APR +60°C 55mm
RS庫存編號 793-4635
製造零件編號LA 150-P
BrandLEM
HK$248.74
單位
Closed Loop 150A 75mA 12 → 15 V - Hall Effect PCB Mount 150 kHz <0.5 % 13.5 x 10mm -40°C LA +85°C 16mm
RS庫存編號 321-6321
製造零件編號LA 35-NP
BrandLEM
HK$263.18
單位
Closed Loop 0 → 70A 35mArms 15 V - Hall Effect PCB Mount DC to 150 kHz ±0.5 % - -25°C LA +70°C 29.2mm
RS庫存編號 435-8684
製造零件編號HX 03-P/SP2
BrandLEM
HK$126.22
單位
Open Loop ±9A - 12 → 15 V - Hall Effect PCB Mount 50 kHz ±1 % 0.6mm -25°C HX +85°C 15.4mm
RS庫存編號 177-4927
製造零件編號ATO-63-B333-D10
BrandLEM
HK$413.76
單位
- 63A - - Split Core - DIN Rail 1.5 kHz - 10mm -10°C ATO +55°C 32mm
RS庫存編號 497-277
製造零件編號HTR 100-SB
BrandLEM
HK$961.42
單位
Open Loop ±200A - 12 → 15 V - Hall Effect Busbar, Panel Mount DC to 10 kHz ±2 % 21mm -10°C HTR +70°C 21.5mm
RS庫存編號 763-9797
製造零件編號CMS2025-SP3
BrandSensitec
HK$130.51
單位
- 25A - ±15 V - AMR Effect PCB Mount DC to 200 kHz ±0.8 % - -25°C CMS2000 +85°C 7.3mm
RS庫存編號 198-835
製造零件編號AT 20 B10
BrandLEM
HK$448.67
單位
- 20A - - - - Cable Tie 50/60 Hz ±1.5 % 16mm -20°C AT +60°C 36.5mm