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ACS3704x Leaded Magnetic Current Sensors

Allegro MicroSystems ACS3704x Leaded Magnetic Current Sensors are a fully integrated Hall-effect-based current sensor ICs that provide a galvanically isolated voltage output proportional to the sensed current. These sensors do not require an external sense resistor, simplifying system design and reducing component count. The ACS37041 and ACS37042 sensors feature an integrated conductor with low resistance for current measurement, reducing power losses and improving efficiency. The ACS37041 and ACS37042 employ a differential sensing technique with two Hall plates to effectively reject common-mode magnetic fields to ensure accurate and reliable current measurements.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS
	Board Mount Current Sensors ACS37041 VERY LOW-COST CURRENT SENSOR ACS37041KLHBLT-030B3 Allegro MicroSystems 1: $1.30 2,526In Stock New Product	Mfr. Part No. ACS37041KLHBLT-030B3 Mouser Part No 250-ACS37041KL-030B3 New Product	Allegro MicroSystems	Board Mount Current Sensors ACS37041 VERY LOW-COST CURRENT SENSOR Learn More about Allegro MicroSystems allegro acs3704x current sensors	Datasheet	2,526In Stock	Cut Tape $1.30 $1.15 $1.03 $0.979 View Reel $0.729 $0.937 $0.835 $0.798 $0.755 $0.729	Min.: 1 Mult.: 1 : 3,000
	Board Mount Current Sensors ACS37041 VERY LOW-COST CURRENT SENSOR ACS37041KLHBLT-030B5 Allegro MicroSystems 1: $1.30 4,530In Stock New Product	Mfr. Part No. ACS37041KLHBLT-030B5 Mouser Part No 250-ACS37041KL-030B5 New Product	Allegro MicroSystems	Board Mount Current Sensors ACS37041 VERY LOW-COST CURRENT SENSOR Learn More about Allegro MicroSystems allegro acs3704x current sensors	Datasheet	4,530In Stock	Cut Tape $1.30 $1.15 $1.03 $0.979 View Reel $0.766 $0.937 $0.835 $0.798 $0.791 $0.766	Min.: 1 Mult.: 1 : 3,000
	Board Mount Hall Effect/Magnetic Sensors 37042 - 37041 WITH VIT ACS37042KLHBLT-030B5 Allegro MicroSystems 1: $1.54 2,635In Stock New Product	Mfr. Part No. ACS37042KLHBLT-030B5 Mouser Part No 250-ACS37042KLH030B5 New Product	Allegro MicroSystems	Board Mount Hall Effect/Magnetic Sensors 37042 - 37041 WITH VIT Learn More about Allegro MicroSystems allegro acs3704x current sensors	Datasheet	2,635In Stock	Cut Tape $1.54 $1.35 $1.21 $1.16 View Reel $0.863 $1.11 $0.991 $0.99 $0.936 $0.863	Min.: 1 Mult.: 1 : 3,000
	Board Mount Hall Effect/Magnetic Sensors 37042 - 37041 WITH VIT ACS37042KLHBLT-010B3 Allegro MicroSystems 1: $1.62 520In Stock 6,000Expected 2027/04/01 New Product	Mfr. Part No. ACS37042KLHBLT-010B3 Mouser Part No 250-ACS37042KLH010B3 New Product	Allegro MicroSystems	Board Mount Hall Effect/Magnetic Sensors 37042 - 37041 WITH VIT Learn More about Allegro MicroSystems allegro acs3704x current sensors	Datasheet	520In Stock 6,000Expected 2027/04/01	Cut Tape $1.62 $1.43 $1.28 $1.23 View Reel $0.863 $1.17 $1.03 $0.95 $0.893 $0.863	Min.: 1 Mult.: 1 : 3,000
	Board Mount Hall Effect/Magnetic Sensors 37042 - 37041 WITH VIT ACS37042KLHBLT-030B3 Allegro MicroSystems 1: $1.54 56In Stock New Product	Mfr. Part No. ACS37042KLHBLT-030B3 Mouser Part No 250-ACS37042KLH030B3 New Product	Allegro MicroSystems	Board Mount Hall Effect/Magnetic Sensors 37042 - 37041 WITH VIT Learn More about Allegro MicroSystems allegro acs3704x current sensors	Datasheet	56In Stock	Cut Tape $1.54 $1.35 $1.21 $1.16 View Reel $0.887 $1.11 $0.991 $0.955 $0.927 $0.887	Min.: 1 Mult.: 1 : 3,000
	Board Mount Current Sensors ACS37041 VERY LOW-COST CURRENT SENSOR ACS37041KLHBLT-010B3 Allegro MicroSystems 1: $1.48 26,686On Order New Product	Mfr. Part No. ACS37041KLHBLT-010B3 Mouser Part No 250-ACS37041KL-010B3 New Product	Allegro MicroSystems	Board Mount Current Sensors ACS37041 VERY LOW-COST CURRENT SENSOR Learn More about Allegro MicroSystems allegro acs3704x current sensors	Datasheet	26,686On Order On Order Ship Dates Mfr. No: ACS37041KLHBLT-010B3 Stock: 0 On Order: 2,686 Expected 2026/10/26 24,000 Expected 2027/03/04 Factory Lead Time: 36 Weeks	Cut Tape $1.48 $1.27 $1.16 $1.03 View Reel $0.776 $0.966 $0.852 $0.82 $0.776	Min.: 1 Mult.: 1 : 3,000
	Board Mount Current Sensors ACS37041 VERY LOW-COST CURRENT SENSOR ACS37041KLHBLT-010B5 Allegro MicroSystems 1: $1.30 5,900Expected 2027/02/11 New Product	Mfr. Part No. ACS37041KLHBLT-010B5 Mouser Part No 250-ACS37041KL-010B5 New Product	Allegro MicroSystems	Board Mount Current Sensors ACS37041 VERY LOW-COST CURRENT SENSOR Learn More about Allegro MicroSystems allegro acs3704x current sensors	Datasheet	5,900Expected 2027/02/11	Cut Tape $1.30 $1.15 $1.03 $0.979 View Reel $0.749 $0.937 $0.835 $0.808 $0.784 $0.749	Min.: 1 Mult.: 1 : 3,000
	Board Mount Hall Effect/Magnetic Sensors 37042 - 37041 WITH VIT ACS37042KLHBLT-010B5 Allegro MicroSystems 1: $1.62 6,000On Order New Product	Mfr. Part No. ACS37042KLHBLT-010B5 Mouser Part No 250-ACS37042KLH010B5 New Product	Allegro MicroSystems	Board Mount Hall Effect/Magnetic Sensors 37042 - 37041 WITH VIT Learn More about Allegro MicroSystems allegro acs3704x current sensors	Datasheet	6,000On Order	Cut Tape $1.62 $1.43 $1.28 $1.23 View Reel $0.889 $1.17 $1.03 $0.969 $0.889 $0.889	Min.: 1 Mult.: 1 : 3,000