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Sensors Portfolio

Littelfuse is a global leader in magnetic sensing solutions with a portfolio covering reed switches, reed sensors, hall effect sensors, reed relays, and magnetic actuators. Littelfuse also offers a broad range of thermistors, resistance temperature detectors (RTDs), digital temperature indicators, and probes and assemblies for temperature sensing applications.

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Part #

Magnetic/Reed Switches MLRR-3 27-33

MLRR-3-27-33
Littelfuse
1: $1.94
988In Stock

Mfr. Part No.
MLRR-3-27-33

Mouser Part No
934-MLRR-327-33

Littelfuse

Magnetic/Reed Switches MLRR-3 27-33

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Datasheet

988In Stock

$1.94

$1.71

$1.59

$1.41

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Min.: 1
Mult.: 1

Magnetic/Reed Switches MDSM-DTB 20-25

MDSM-DTB-20-25
Littelfuse
1: $7.79
259In Stock

Mfr. Part No.
MDSM-DTB-20-25

Mouser Part No
934-MDSM-DTB20-25

Littelfuse

Magnetic/Reed Switches MDSM-DTB 20-25

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Datasheet

259In Stock

$7.79

$6.58

$6.13

$5.51

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Min.: 1
Mult.: 1

Reed Relays REED RELAY

HE722A1210
Littelfuse
1: $5.92
5,890In Stock
Factory Special Order

Mfr. Part No.
HE722A1210

Mouser Part No
934-HE722A1210

Factory Special Order

Littelfuse

Reed Relays REED RELAY

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Datasheet

5,890In Stock

$5.92

$5.28

$5.03

$4.86

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Min.: 1
Mult.: 1

Magnetic/Reed Switches 59050-3-S-00-0 SENS

59050-3-S-00-0
Littelfuse
1: $6.81
568In Stock

Mfr. Part No.
59050-3-S-00-0

Mouser Part No
576-59050-3-S-00-0

Littelfuse

Magnetic/Reed Switches 59050-3-S-00-0 SENS

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Datasheet

568In Stock

$6.81

$5.68

$5.28

$4.45

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Min.: 1
Mult.: 1

Hall Effect / Magnetic Sensors - Industrial GEARTOOTH SPEED SEN SS 3WIRE

55075-00-02-A
Littelfuse
1: $49.34
600In Stock
900Expected 3/9/2026

Mfr. Part No.
55075-00-02-A

Mouser Part No
934-55075-00-02-A

Littelfuse

Hall Effect / Magnetic Sensors - Industrial GEARTOOTH SPEED SEN SS 3WIRE

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Datasheet

600In Stock

900Expected 3/9/2026

$49.34

$45.30

$43.56

$41.07

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Min.: 1
Mult.: 1

Sensor Fixings & Accessories MAGNET ACTUATOR FOR 59140 AND 59141

57140-000
Littelfuse
1: $2.87
24,692In Stock
17,460Expected 30/9/2026

Mfr. Part No.
57140-000

Mouser Part No
934-57140-000

Littelfuse

Sensor Fixings & Accessories MAGNET ACTUATOR FOR 59140 AND 59141

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Datasheet

24,692In Stock

17,460Expected 30/9/2026

$2.87

$2.56

$2.30

$2.20

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Min.: 1
Mult.: 1

Sensor Fixings & Accessories ACTUATOR FOR 59150 SERIES

57150-000
Littelfuse
1: $3.33
18,397In Stock

Mfr. Part No.
57150-000

Mouser Part No
934-57150-000

Littelfuse

Sensor Fixings & Accessories ACTUATOR FOR 59150 SERIES

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Datasheet

18,397In Stock

$3.33

$2.98

$2.68

$2.52

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Min.: 1
Mult.: 1

Magnetic/Reed Switches PROX SENSOR PCB MT NORMAL OPEN

59045-010
Littelfuse
1: $3.44
10,011In Stock

Mfr. Part No.
59045-010

Mouser Part No
934-59045-010

Littelfuse

Magnetic/Reed Switches PROX SENSOR PCB MT NORMAL OPEN

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Datasheet

10,011In Stock

$3.44

$2.90

$2.69

$2.27

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Min.: 1
Mult.: 1

Proximity Sensors Actuator for 59140 and 59141

59140-010
Littelfuse
1: $4.76
6,049In Stock

Mfr. Part No.
59140-010

Mouser Part No
934-59140-010

Littelfuse

Proximity Sensors Actuator for 59140 and 59141

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Datasheet

6,049In Stock

$4.76

$4.26

$4.08

$3.85

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Min.: 1
Mult.: 1

Magnetic/Reed Switches SWITCH REED

HA15-2-22-28
Littelfuse
1: $3.17
14,875In Stock

Mfr. Part No.
HA15-2-22-28

Mouser Part No
934-HA15-222-28

Littelfuse

Magnetic/Reed Switches SWITCH REED

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Datasheet

14,875In Stock

$3.17

$2.68

$2.48

$2.22

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Min.: 1
Mult.: 1

Reed Relays HE3621A6012 REED RELAY

HE3621A6012
Littelfuse
1: $3.58
2,396In Stock
Factory Special Order

Mfr. Part No.
HE3621A6012

Mouser Part No
934-HE3621A6012

Factory Special Order

Littelfuse

Reed Relays HE3621A6012 REED RELAY

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Datasheet

2,396In Stock

$3.58

$2.24

$2.19

Min.: 1
Mult.: 1

Reed Relays REED RELAY

HE721C1210
Littelfuse
1: $6.41
2,845In Stock
Factory Special Order

Mfr. Part No.
HE721C1210

Mouser Part No
934-HE721C1210

Factory Special Order

Littelfuse

Reed Relays REED RELAY

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Datasheet

2,845In Stock

$6.41

$5.70

$5.44

$5.26

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Min.: 1
Mult.: 1

Reed Relays 5V Standard Coil Suppression Diode

HE721E0510
Littelfuse
1: $13.49
1,862In Stock
Factory Special Order

Mfr. Part No.
HE721E0510

Mouser Part No
934-HE721E0510

Factory Special Order

Littelfuse

Reed Relays 5V Standard Coil Suppression Diode

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Datasheet

1,862In Stock

$13.49

$11.07

$10.28

$9.44

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Min.: 1
Mult.: 1

Sensor Fixings & Accessories Actuator for Cylindrical with Retaining Ribs

57041-000
Littelfuse
1: $3.25
346In Stock

Mfr. Part No.
57041-000

Mouser Part No
576-57041-000

Littelfuse

Sensor Fixings & Accessories Actuator for Cylindrical with Retaining Ribs

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Datasheet

346In Stock

$3.25

$2.90

$2.61

$2.50

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Min.: 1
Mult.: 1

Hall Effect / Magnetic Sensors - Industrial 55100 3M03A HALL SENSOR

55100-3M-03-A
Littelfuse
1: $11.95
1,134In Stock
1,000Expected 20/1/2027

Mfr. Part No.
55100-3M-03-A

Mouser Part No
934-55100-3M-03-A

Littelfuse

Hall Effect / Magnetic Sensors - Industrial 55100 3M03A HALL SENSOR

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Datasheet

1,134In Stock

1,000Expected 20/1/2027

$11.95

$10.81

$10.39

$9.89

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Min.: 1
Mult.: 1

Hall Effect / Magnetic Sensors - Industrial 55100 2M02A HALL SENSOR

55100-2M-02-A
Littelfuse
1: $10.91
258In Stock
500Expected 5/11/2026

Mfr. Part No.
55100-2M-02-A

Mouser Part No
934-551002M02A

Littelfuse

Hall Effect / Magnetic Sensors - Industrial 55100 2M02A HALL SENSOR

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Datasheet

258In Stock

500Expected 5/11/2026

$10.91

$9.87

$9.48

$9.02

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Min.: 1
Mult.: 1

Hall Effect / Magnetic Sensors - Industrial MINI FLANGE MNT PROX SEN 3WIRE

55100-3M-02-A
Littelfuse
1: $10.91
518In Stock
1,700On Order

Mfr. Part No.
55100-3M-02-A

Mouser Part No
934-551003M02A

Littelfuse

Hall Effect / Magnetic Sensors - Industrial MINI FLANGE MNT PROX SEN 3WIRE

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Datasheet

518In Stock

1,700On Order

$10.91

$9.86

$9.48

$9.02

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Min.: 1
Mult.: 1

Hall Effect / Magnetic Sensors - Industrial MIN FLANGE MNT PROX SENS 3WIRE

55140-3M-02-A
Littelfuse
1: $11.91
1,100In Stock

Mfr. Part No.
55140-3M-02-A

Mouser Part No
934-551403M02A

Littelfuse

Hall Effect / Magnetic Sensors - Industrial MIN FLANGE MNT PROX SENS 3WIRE

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Datasheet

1,100In Stock

$11.91

$10.78

$10.36

$9.85

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Min.: 1
Mult.: 1

Hall Effect / Magnetic Sensors - Industrial HALL EFF GEARTOOTH SPEED SENS

55505-00-02-A
Littelfuse
1: $45.34
420In Stock
2,000On Order

Mfr. Part No.
55505-00-02-A

Mouser Part No
934-555050002A

Littelfuse

Hall Effect / Magnetic Sensors - Industrial HALL EFF GEARTOOTH SPEED SENS

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Datasheet

420In Stock

2,000On Order

$45.34

$41.40

$40.34

$39.78

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Min.: 1
Mult.: 1

Hall Effect / Magnetic Sensors - Industrial HALL EFF GEARTOOTH SPEED SENS

55505-00-02-B
Littelfuse
1: $49.64
75In Stock
1,100On Order

Mfr. Part No.
55505-00-02-B

Mouser Part No
934-555050002B

Littelfuse

Hall Effect / Magnetic Sensors - Industrial HALL EFF GEARTOOTH SPEED SENS

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Datasheet

75In Stock

1,100On Order

$49.64

$45.63

$44.12

$42.32

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Min.: 1
Mult.: 1

Sensor Fixings & Accessories ACTUATOR FOR 59010 /59020 /59021

57020-000
Littelfuse
1: $7.67
411In Stock

Mfr. Part No.
57020-000

Mouser Part No
934-57020-000

Littelfuse

Sensor Fixings & Accessories ACTUATOR FOR 59010 /59020 /59021

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Datasheet

411In Stock

$7.67

$6.91

$6.62

$6.28

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Min.: 1
Mult.: 1

Sensor Fixings & Accessories Actuator for 59025 Series

57025-000
Littelfuse
1: $6.28
3,807In Stock

Mfr. Part No.
57025-000

Mouser Part No
934-57025-000

Littelfuse

Sensor Fixings & Accessories Actuator for 59025 Series

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Datasheet

3,807In Stock

$6.28

$5.64

$5.41

$5.03

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Min.: 1
Mult.: 1

Sensor Fixings & Accessories Actuator For 59040 Series

57040-000
Littelfuse
1: $6.79
1,173In Stock

Mfr. Part No.
57040-000

Mouser Part No
934-57040-000

Littelfuse

Sensor Fixings & Accessories Actuator For 59040 Series

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Datasheet

1,173In Stock

$6.79

$6.11

$5.85

$5.55

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Min.: 1
Mult.: 1

Sensor Fixings & Accessories 57050 000 ACTUATOR

57050-000
Littelfuse
1: $5.68
1,327In Stock

Mfr. Part No.
57050-000

Mouser Part No
934-57050-000

Littelfuse

Sensor Fixings & Accessories 57050 000 ACTUATOR

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Datasheet

1,327In Stock

$5.68

$5.11

$4.90

$4.64

View

Min.: 1
Mult.: 1

Sensor Fixings & Accessories 57060 000 ACTUATOR

57060-000
Littelfuse
1: $19.56
189In Stock

Mfr. Part No.
57060-000

Mouser Part No
934-57060-000

Littelfuse

Sensor Fixings & Accessories 57060 000 ACTUATOR

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Datasheet

189In Stock

$19.56

$17.82

$17.16

$16.44

Min.: 1
Mult.: 1

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