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 Stock No. 136-2035
Mfr. Part No.TLI4970D025T4XUMA1
BrandInfineon
$13.40
Each
units
- 20 - 3.1 → 3.5 V - Hall Effect Surface Mount 18 kHz 1.6 % - -40°C TLI4970 +85°C 1mm
RS Stock No. 136-2031
Mfr. Part No.TLI4970D025T5XUMA1
BrandInfineon
$11.40
Each
units
- 20 - 3.1 → 3.5 V - Hall Effect Surface Mount 18 kHz 3.5 % - -40°C TLI4970 +85°C 1mm
RS Stock No. 136-1510
Mfr. Part No.TLV493DA1B6HTSA2
BrandInfineon
$0.972
Each (On a Reel of 3000)
units
- 3.7 mA - 2.8 → 3.5 V - Hall Effect Surface Mount - - - -40°C TLV493D +125°C 1mm
RS Stock No. 136-1503
Mfr. Part No.TLI4970D025T5XUMA1
BrandInfineon
$7.567
Each (On a Reel of 2000)
units
- 20 - 3.1 → 3.5 V - Hall Effect Surface Mount 18 kHz 3.5 % - -40°C TLI4970 +85°C 1mm
RS Stock No. 136-2033
Mfr. Part No.TLI4970D050T5XUMA1
BrandInfineon
$13.40
Each
units
- 20 - 3.1 → 3.5 V - Hall Effect Surface Mount 18 kHz 3.5 % - -40°C TLI4970 +85°C 1mm
RS Stock No. 136-2037
Mfr. Part No.TLI4970D050T4XUMA1
BrandInfineon
$15.70
Each
units
- 20 - 3.1 → 3.5 V - Hall Effect Surface Mount 18 kHz 1.6 % - -40°C TLI4970 +85°C 1mm
RS Stock No. 136-2046
Mfr. Part No.TLV493DA1B6HTSA2
BrandInfineon
$1.738
Each (In a Pack of 10)
units
- 3.7 mA - 2.8 → 3.5 V - Hall Effect Surface Mount - - - -40°C TLV493D +125°C 1mm
RS Stock No. 136-1506
Mfr. Part No.TLI4970D050T4XUMA1
BrandInfineon
$10.467
Each (On a Reel of 2000)
units
- 20 - 3.1 → 3.5 V - Hall Effect Surface Mount 18 kHz 1.6 % - -40°C TLI4970 +85°C 1mm
RS Stock No. 136-1505
Mfr. Part No.TLI4970D025T4XUMA1
BrandInfineon
$8.90
Each (On a Reel of 2000)
units
- 20 - 3.1 → 3.5 V - Hall Effect Surface Mount 18 kHz 1.6 % - -40°C TLI4970 +85°C 1mm
RS Stock No. 136-1504
Mfr. Part No.TLI4970D050T5XUMA1
BrandInfineon
$8.90
Each (On a Reel of 2000)
units
- 20 - 3.1 → 3.5 V - Hall Effect Surface Mount 18 kHz 3.5 % - -40°C TLI4970 +85°C 1mm