TMR Switches

Littelfuse TMR Switches are digital magnetic switches that integrate tunneling magnetoresistance (TMR) and CMOS technology. This technology provides a magnetically triggered digital switch with high sensitivity, and ultralow power consumption. This Littelfuse series contains a TMR magnetic sensor and CMOS signal processing circuitry within the same package. An on-chip TMR voltage generator is also included for precise magnetic sensing. A TMR voltage amplifier and comparator plus a Schmitt trigger provide switching hysteresis for noise rejection.

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Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Type
Operating Supply Current
Maximum Output Current
Operating Point Min/Max
Release Point Min/Max (Brp)
Operating Supply Voltage
Minimum Operating Temperature
Maximum Operating Temperature
Mounting Style
Package / Case
Series
Packaging
Littelfuse Board Mount Hall Effect / Magnetic Sensors LF21235TMR STD TMD SENS
Datasheet
6,226In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Magnetic 1.5 uA 9 mA - 35 G to - 4 G, 4 G to 35 G - 30 G to - 4 G, 4 G to 30 G 3 V - 40 C + 125 C SMD/SMT TMR Reel, Cut Tape, MouseReel
Littelfuse Board Mount Hall Effect / Magnetic Sensors LF22214TMR STD TMD SENS
Datasheet
7,635In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Magnetic 1.5 uA 20 mA - 25 G to - 8 G, 8 G to 25 G - 20 G to - 5 G, 5 G to 20 G 3 V - 40 C + 125 C SMD/SMT TMR Reel, Cut Tape, MouseReel
Littelfuse Board Mount Hall Effect / Magnetic Sensors LF11115TMR STD TMD SENS
Datasheet
315In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Magnetic 200 nA 9 mA - 26 G to - 9 G, 9 G to 26 G - 20 G to - 5 G, 5 G to 20 G 3 V - 40 C + 125 C SMD/SMT TMR Reel, Cut Tape, MouseReel
Littelfuse Board Mount Hall Effect / Magnetic Sensors LF32115TMR STD TMD SENS
Datasheet
2,975In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Magnetic 200 nA 20 mA 9 G to 25 G 5 G to 20 G 3 V - 40 C + 125 C SMD/SMT TMR Reel, Cut Tape, MouseReel
Littelfuse Board Mount Hall Effect / Magnetic Sensors LF21115TMR STD TMD SENS
Datasheet
29,995Expected 2026-05-25
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Magnetic 200 nA 9 mA - 26 G to - 9 G, 9 G to 26 G - 20 G to - 5 G, 5 G to 20 G 3 V - 40 C + 125 C SMD/SMT TMR Reel, Cut Tape, MouseReel
Littelfuse Board Mount Hall Effect / Magnetic Sensors 7V 9mA 4kGauss 4 kV, 1.5uA
Datasheet
3,000Expected 2026-05-11
Min.: 1
Mult.: 1
Reel: 3,000

Sensor 1.5 uA 25 Guass - 10 Gauss 1.8 V to 5.5 V - 40 C + 125 C SMD/SMT SOT-23-3 TMR Reel, Cut Tape
Littelfuse Board Mount Hall Effect / Magnetic Sensors 7V 9mA 4kGauss 4 kV, 200nA
Datasheet
3,000Expected 2026-05-11
Min.: 1
Mult.: 1
Reel: 3,000

Sensor 200 nA 7 Gauss 5 Gauss 1.8 V to 5.5 V - 40 C + 125 C SMD/SMT SOT23-3 TMR Reel, Cut Tape
Littelfuse Board Mount Hall Effect / Magnetic Sensors LF21215TMR STD TMD SENS
Datasheet
2,997Expected 2026-08-21
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Magnetic 1.5 uA 9 mA - 30 G to - 10 G, 10 G to 30 G - 20 G to - 5 G, 5 G to 20 G 3 V - 40 C + 125 C SMD/SMT TMR Reel, Cut Tape, MouseReel