CASR Board Mount Current Transducers

LEM CASR Board Mount Current Transducers are specifically designed for accurate electronic measurement of DC, AC, and pulsed currents, covering a range from 1.5A to 75A RMS. These sensors provide galvanic isolation between the primary and secondary circuits, ensuring enhanced safety and performance. Built with compact Fluxgate-based technology, the LEM CASR current sensors operate with a single +5V supply and exhibit minimal offset and gain drift. The CASR sensors also offer an extended measuring range up to three times the nominal primary current (Ipn), making them highly versatile. Additionally, these transducers are designed for direct PCB mounting, featuring three primary pins for efficient handling of small current measurements from 2A to 50A RMS.

Results: 10
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (SGD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Current Rating
Sensor Type
Response Time
Accuracy
Frequency Range
Operating Supply Voltage
Output Type
Maximum Operating Temperature
Minimum Operating Temperature
Supply Voltage - Max
Supply Voltage - Min
Type
LEM Board Mount Current Sensors Current transducer CASR series. For the electronic measurement of current: DC, AC, pulsed..., with galvanic seperation between the primary and the secondary circuit.
Datasheet
1,923In Stock
$17.94
$16.25
$15.63
$14.88
View
Min.: 1
Mult.: 1
15 A Closed Loop 300 ps 0.8 % 300 kHz 5 V Digital, Analog + 105 C - 40 C 5.25 V 4.75 V Current Transducer
LEM Board Mount Current Sensors Current transducer CASR series. For the electronic measurement of current: DC, AC, pulsed..., with galvanic seperation between the primary and the secondary circuit.
Datasheet
369In Stock
200Expected 27/10/2026
$21.98
$19.65
$18.26
$16.56
View
Min.: 1
Mult.: 1
6 A Closed Loop 300 ps 0.8 % 300 kHz 5 V Digital, Analog + 105 C - 40 C 5.25 V 4.75 V Current Transducer
LEM Board Mount Current Sensors Current transducer CASR series. For the electronic measurement of current: DC, AC, pulsed..., with galvanic seperation between the primary and the secondary circuit.
Datasheet
400In Stock
$19.56
$17.73
$17.05
$16.25
View
Min.: 1
Mult.: 1
50 A Closed Loop 300 ps 0.8 % 300 kHz 5 V Digital, Analog + 105 C - 40 C 5.25 V 4.75 V Current Transducer
LEM Board Mount Current Sensors
Datasheet
180In Stock
$25.66
$21.64
$20.11
$18.25
View
Min.: 1
Mult.: 1
6 A Closed Loop 300 ps 0.8 % 300 kHz 5 V Digital, Analog + 105 C - 40 C 5.25 V 4.75 V Current Transducer
LEM Board Mount Current Sensors Current transducer CASR series. For the electronic measurement of current: DC, AC, pulsed..., with galvanic seperation between the primary and the secondary circuit.
Datasheet
16In Stock
1,600On Order
$19.03
$17.23
$16.56
$15.78
View
Min.: 1
Mult.: 1
25 A Closed Loop 300 ps 0.8 % 300 kHz 5 V Digital, Analog + 105 C - 40 C 5.25 V 4.75 V Current Transducer
LEM Board Mount Current Sensors
Datasheet
Non-Stocked
$14.35
$14.21
$14.14
Min.: 200
Mult.: 200
15 A Closed Loop 300 ps 0.8 % 300 kHz 5 V Digital, Analog + 105 C - 40 C 5.25 V 4.75 V Current Transducer
LEM Board Mount Current Sensors
Datasheet
Non-Stocked
$13.11
$12.95
$12.85
Min.: 200
Mult.: 200
15 A Closed Loop 300 ps 0.8 % 300 kHz 5 V Digital, Analog + 105 C - 40 C 5.25 V 4.75 V Current Transducer
LEM Board Mount Current Sensors
Datasheet
Non-Stocked
$14.35
$14.21
$14.14
Min.: 200
Mult.: 200
25 A Closed Loop 300 ps 0.8 % 300 kHz 5 V Digital, Analog + 105 C - 40 C 5.25 V 4.75 V Current Transducer
LEM Board Mount Current Sensors
Datasheet
Non-Stocked
$13.11
$12.95
$12.85
Min.: 200
Mult.: 200
25 A Closed Loop 300 ps 0.8 % 300 kHz 5 V Digital, Analog + 105 C - 40 C 5.25 V 4.75 V Current Transducer
LEM Board Mount Current Sensors
Datasheet
Non-Stocked
$15.67
$15.54
Min.: 200
Mult.: 200
50 A Closed Loop 300 ps 0.8 % 300 kHz 5 V Digital, Analog + 105 C - 40 C 5.25 V 4.75 V Current Transducer