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CAS Board Mount Current Transducers

LEM CAS Board Mount Current Transducers are designed for accurate electronic measurement of DC, AC, and pulsed currents, ranging from 1.5A RMS to 75A RMS, with galvanic isolation between the primary and secondary circuits. These Fluxgate-based transducers operate on a single +5V supply, ensuring low offset and gain drift. With a measuring range extending up to three times the nominal primary current (Ipn), the transducers offer high precision and reliability for various applications. Additionally, the LEM CAS sensors are designed for PCB mounting, making them easy to integrate into electronic systems.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (IDR) 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
	Board Mount Current Sensors Current Transducer CAS series. For the electronic measurement of current: DC, AC, pulsed..., with galvanic seperation between the primary and the secondary circuit. CAS 25-NP LEM 1: Rp273.539 421In Stock New Product	Mfr. Part No. CAS 25-NP Mouser Part No 61-CAS25-NP New Product	LEM	Board Mount Current Sensors Current Transducer CAS series. For the electronic measurement of current: DC, AC, pulsed..., with galvanic seperation between the primary and the secondary circuit. Learn More about LEM cas current transducers	Datasheet	421In Stock	Rp273.539 Rp247.854 Rp238.315 Rp227.123 View Rp219.235 Rp205.659 Rp205.475 Rp190.431 Rp185.478	Min.: 1 Mult.: 1			25 A	Closed Loop	300 ps	0.8 %	300 kHz	5 V	Digital, Analog	+ 85 C	- 40 C	5.25 V	4.75 V	Current Transducer
	Board Mount Current Sensors Current Transducer CAS series. For the electronic measurement of current: DC, AC, pulsed..., with galvanic seperation between the primary and the secondary circuit. CAS 50-NP LEM 1: Rp281.611 165In Stock New Product	Mfr. Part No. CAS 50-NP Mouser Part No 61-CAS50-NP New Product	LEM	Board Mount Current Sensors Current Transducer CAS series. For the electronic measurement of current: DC, AC, pulsed..., with galvanic seperation between the primary and the secondary circuit. Learn More about LEM cas current transducers	Datasheet	165In Stock	Rp281.611 Rp255.560 Rp245.836 Rp230.976 View Rp223.271 Rp215.749 Rp209.328 Rp205.292	Min.: 1 Mult.: 1			50 A	Closed Loop	300 ps	0.8 %	300 kHz	5 V	Digital, Analog	+ 85 C	- 40 C	5.25 V	4.75 V	Current Transducer
	Board Mount Current Sensors Current Transducer CAS series. For the electronic measurement of current: DC, AC, pulsed..., with galvanic seperation between the primary and the secondary circuit. CAS 6-NP LEM 1: Rp277.758 186In Stock 200Expected 08/12/2026 New Product	Mfr. Part No. CAS 6-NP Mouser Part No 61-CAS6-NP New Product	LEM	Board Mount Current Sensors Current Transducer CAS series. For the electronic measurement of current: DC, AC, pulsed..., with galvanic seperation between the primary and the secondary circuit. Learn More about LEM cas current transducers	Datasheet	186In Stock 200Expected 08/12/2026	Rp277.758 Rp251.891 Rp242.167 Rp230.793 View Rp222.904 Rp208.227 Rp207.860 Rp191.716 Rp188.597	Min.: 1 Mult.: 1			6 A	Closed Loop	300 ps	0.8 %	300 kHz	5 V	Digital, Analog	+ 85 C	- 40 C	5.25 V	4.75 V	Current Transducer
	Board Mount Current Sensors Current Transducer CAS series. For the electronic measurement of current: DC, AC, pulsed..., with galvanic seperation between the primary and the secondary circuit. CAS 15-NP LEM 1: Rp278.309 552On Order New Product	Mfr. Part No. CAS 15-NP Mouser Part No 61-CAS15-NP New Product	LEM	Board Mount Current Sensors Current Transducer CAS series. For the electronic measurement of current: DC, AC, pulsed..., with galvanic seperation between the primary and the secondary circuit. Learn More about LEM cas current transducers	Datasheet	552On Order On Order Ship Dates Mfr. No: CAS 15-NP Stock: 0 On Order: 152 Expected 15/12/2026 400 Expected 06/04/2027 Factory Lead Time: 31 Weeks	Rp278.309 Rp252.258 Rp242.718 Rp231.160 View Rp223.271 Rp208.411 Rp208.044 Rp199.971 Rp198.687	Min.: 1 Mult.: 1			15 A	Closed Loop	300 ps	0.8 %	300 kHz	5 V	Digital, Analog	+ 85 C	- 40 C	5.25 V	4.75 V	Current Transducer
	Board Mount Current Sensors CAS 15-NP/SP1 LEM 200: Rp188.964 Non-Stocked New Product	Mfr. Part No. CAS 15-NP/SP1 Mouser Part No 61-CAS15-NP/SP1 New Product	LEM	Board Mount Current Sensors Learn More about LEM cas current transducers	Datasheet	Non-Stocked	Rp188.964 Rp187.129 Rp186.212	Min.: 200 Mult.: 200			15 A	Closed Loop	300 ps	0.8 %	300 kHz	5 V	Digital, Analog	+ 85 C	- 40 C	5.25 V	4.75 V	Current Transducer
	Board Mount Current Sensors CAS 25-NP/SP1 LEM 200: Rp188.964 Non-Stocked New Product	Mfr. Part No. CAS 25-NP/SP1 Mouser Part No 61-CAS25-NP/SP1 New Product	LEM	Board Mount Current Sensors Learn More about LEM cas current transducers	Datasheet	Non-Stocked	Rp188.964 Rp187.129 Rp186.212	Min.: 200 Mult.: 200			25 A	Closed Loop	300 ps	0.8 %	300 kHz	5 V	Digital, Analog	+ 85 C	- 40 C	5.25 V	4.75 V	Current Transducer