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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Hall Effect / Magnetic Sensors - Industrial GEARTOOTH SPEED SEN SS 3WIRE 55075-00-02-A Littelfuse 1: $30.80 1,215In Stock 183Expected 11/30/2026	Mfr. Part # 55075-00-02-A Mouser Part # 934-55075-00-02-A	Littelfuse	Hall Effect / Magnetic Sensors - Industrial GEARTOOTH SPEED SEN SS 3WIRE Learn More about Littelfuse sensors	Datasheet	1,215In Stock 183Expected 11/30/2026	$30.80 $30.26 $29.61 $29.04 View $28.22 $28.21 Quote	Min.: 1 Mult.: 1
Hall Effect / Magnetic Sensors - Industrial 3 Wire SW 500mm TIN 55100-3H-04-A Littelfuse 1: $8.42 4,456In Stock	Mfr. Part # 55100-3H-04-A Mouser Part # 934-55100-3H-04-A	Littelfuse	Hall Effect / Magnetic Sensors - Industrial 3 Wire SW 500mm TIN Learn More about Littelfuse Hamlin 55100 Sensor	Datasheet	4,456In Stock	$8.42 $7.62 $7.32 $6.96 View $6.72 $6.50 $6.02 $5.83	Min.: 1 Mult.: 1
Magnetic / Reed Switches 59165-1-U-00-A SENS 59165-1-U-00-A Littelfuse 1: $2.03 12,990In Stock	Mfr. Part # 59165-1-U-00-A Mouser Part # 934-59165-1-U-00-A	Littelfuse	Magnetic / Reed Switches 59165-1-U-00-A SENS Learn More about Littelfuse hamlin mdsr reed sensors	Datasheet	12,990In Stock	$2.03 $1.71 $1.37 $1.26 View $1.19 $1.13 $1.11 $1.08	Min.: 1 Mult.: 1
Proximity Sensors PROX SEN VANE SPST-NO W/WIRE 59085-010 Littelfuse 1: $9.50 5,964In Stock	Mfr. Part # 59085-010 Mouser Part # 934-59085-010	Littelfuse	Proximity Sensors PROX SEN VANE SPST-NO W/WIRE Learn More about Littelfuse sensors	Datasheet	5,964In Stock	$9.50 $8.61 $8.28 $8.20 View $8.04 $7.95 $7.47 $7.38	Min.: 1 Mult.: 1
Reed Relays REED RELAY HE722A1210 Littelfuse 1: $3.78 5,808In Stock Factory Special Order	Mfr. Part # HE722A1210 Mouser Part # 934-HE722A1210 Factory Special Order	Littelfuse	Reed Relays REED RELAY Learn More about Littelfuse he700	Datasheet	5,808In Stock	$3.78 $3.37 $3.22 $3.11 View $3.00 $2.87 $2.76 $2.66	Min.: 1 Mult.: 1
Proximity Sensors NO 12-18AT 300mm Mini Flange Mount 59141-1-S-02-F Littelfuse 1: $4.89 736In Stock	Mfr. Part # 59141-1-S-02-F Mouser Part # 934-59141-1-S-02-F	Littelfuse	Proximity Sensors NO 12-18AT 300mm Mini Flange Mount Learn More about Littelfuse reed sensors	Datasheet	736In Stock	$4.89 $4.38 $4.19 $3.97 View $3.82 $3.66 $2.93	Min.: 1 Mult.: 1
Hall Effect / Magnetic Sensors - Industrial MIN FLANGE MNT PROX SENS 3WIRE 55140-3M-02-A Littelfuse 1: $8.76 1,094In Stock	Mfr. Part # 55140-3M-02-A Mouser Part # 934-551403M02A	Littelfuse	Hall Effect / Magnetic Sensors - Industrial MIN FLANGE MNT PROX SENS 3WIRE Learn More about Littelfuse sensors	Datasheet	1,094In Stock	$8.76 $7.93 $7.62 $7.24 View $6.99 $6.75 $6.12 $6.04	Min.: 1 Mult.: 1
Proximity Sensors PROX SEN THREAD BARREL SPST-NC 59065-040 Littelfuse 1: $4.58 842In Stock	Mfr. Part # 59065-040 Mouser Part # 934-59065-040	Littelfuse	Proximity Sensors PROX SEN THREAD BARREL SPST-NC Learn More about Littelfuse hamlin mdsr reed sensors	Datasheet	842In Stock	$4.58 $4.11 $3.94 $3.73 View $3.61 $3.60 $3.54 $3.53 $3.41	Min.: 1 Mult.: 1
Proximity Sensors 59065-4-T-02-F SENS 59065-4-T-02-F Littelfuse 1: $6.07 368In Stock	Mfr. Part # 59065-4-T-02-F Mouser Part # 934-59065-4-T-02-F	Littelfuse	Proximity Sensors 59065-4-T-02-F SENS Learn More about Littelfuse reed sensors	Datasheet	368In Stock	$6.07 $5.47 $5.25 $4.98 View $4.80 $4.62 $4.29 $4.16	Min.: 1 Mult.: 1
Proximity Sensors 59105-1-T-00-0 SENS 59105-1-T-00-0 Littelfuse 1: $6.94 202In Stock	Mfr. Part # 59105-1-T-00-0 Mouser Part # 934-59105-1-T-00-0	Littelfuse	Proximity Sensors 59105-1-T-00-0 SENS Learn More about Littelfuse reed sensors	Datasheet	202In Stock	$6.94 $6.26 $6.01 $5.71 View $5.51 $5.31 $4.93 $4.79	Min.: 1 Mult.: 1
Proximity Sensors PROXIMITY SENSORS 59145-4-T-02-F Littelfuse 1: $6.78 1,426In Stock	Mfr. Part # 59145-4-T-02-F Mouser Part # 934-59145-4-T-02-F	Littelfuse	Proximity Sensors PROXIMITY SENSORS Learn More about Littelfuse reed sensors	Datasheet	1,426In Stock	$6.78 $6.11 $5.86 $5.47 View $5.18 $4.84 $4.09 $4.00 $3.86	Min.: 1 Mult.: 1
Magnetic / Reed Switches CO 10-15AT SMT MDSM-DTB-10-15 Littelfuse 1: $5.49 765In Stock	Mfr. Part # MDSM-DTB-10-15 Mouser Part # 934-MDSM-DTB-10-15	Littelfuse	Magnetic / Reed Switches CO 10-15AT SMT Learn More about Littelfuse sensors	Datasheet	765In Stock	$5.49 $4.58 $4.24 $3.78 View $3.52 $3.35 $3.16 $3.01 Quote	Min.: 1 Mult.: 1
Magnetic / Reed Switches NO 25-30AT MDSR-7-25-30 Littelfuse 1: $1.38 2,340In Stock	Mfr. Part # MDSR-7-25-30 Mouser Part # 934-MDSR-7-25-30	Littelfuse	Magnetic / Reed Switches NO 25-30AT Learn More about Littelfuse sensors	Datasheet	2,340In Stock	$1.38 $1.21 $1.12 $1.01 View $0.939 $0.894 $0.851 $0.791 $0.684	Min.: 1 Mult.: 1
Proximity Sensors PROX SENS CHANGE OVER UNTINNED 59025-3-T-02-F Littelfuse 1: $5.45 495In Stock	Mfr. Part # 59025-3-T-02-F Mouser Part # 934-59025-3-T-02-F	Littelfuse	Proximity Sensors PROX SENS CHANGE OVER UNTINNED Learn More about Littelfuse hamlin 59025 firecracker sensors	Datasheet	495In Stock	$5.45 $4.91 $4.71 $4.46 View $4.30 $4.14 $3.83 $3.72	Min.: 1 Mult.: 1
Proximity Sensors 59085-1-T-02-F SENS 59085-1-T-02-F Littelfuse 1: $8.01 955In Stock	Mfr. Part # 59085-1-T-02-F Mouser Part # 934-59085-1-T-02-F	Littelfuse	Proximity Sensors 59085-1-T-02-F SENS Learn More about Littelfuse reed sensors	Datasheet	955In Stock	$8.01 $7.24 $6.96 $6.61 View $6.38 $5.90 $5.88 $5.57	Min.: 1 Mult.: 1
Sensor Hardware & Accessories HARDWARE ACTUATOR MAGNET H-31-MAGNET Littelfuse 1: $1.46 7,048In Stock	Mfr. Part # H-31-MAGNET Mouser Part # 934-H-31	Littelfuse	Sensor Hardware & Accessories HARDWARE ACTUATOR MAGNET Learn More about Littelfuse magnetic actuators	Datasheet	7,048In Stock	$1.46 $1.29 $1.16 $1.11 View $1.04 $0.965 $0.931 $0.861	Min.: 1 Mult.: 1
Magnetic / Reed Switches 175V 5WATTS MDRR-DT-30-35-F Littelfuse 1: $5.13 1,834In Stock	Mfr. Part # MDRR-DT-30-35-F Mouser Part # 934-MDRR-DT-30-35-F	Littelfuse	Magnetic / Reed Switches 175V 5WATTS Learn More about Littelfuse Hamlin MDRR DT	Datasheet	1,834In Stock	$5.13 $4.46 $4.13 $3.68 View $3.43 $3.26 $3.10 $2.93	Min.: 1 Mult.: 1
Magnetic / Reed Switches MDSM-10R 5431 15-20 MDSM-10R-15-20 Littelfuse 1: $1.54 2,828In Stock	Mfr. Part # MDSM-10R-15-20 Mouser Part # 934-MDSM-10R15-20	Littelfuse	Magnetic / Reed Switches MDSM-10R 5431 15-20 Learn More about Littelfuse reed switches	Datasheet	2,828In Stock	Cut Tape $1.54 $1.33 $1.26 $1.15 View Reel $0.912 $1.08 $1.03 $1.01 $0.912	Min.: 1 Mult.: 1 : 3,000
Proximity Sensors PROX SENSOR MINI FLANGE MOUNT 59140-020 Littelfuse 1: $4.20 1,389In Stock	Mfr. Part # 59140-020 Mouser Part # 934-59140-020	Littelfuse	Proximity Sensors PROX SENSOR MINI FLANGE MOUNT Learn More about Littelfuse sensors	Datasheet	1,389In Stock	$4.20 $4.19 $3.56 $3.35 View $3.34 $2.73 $2.63 $2.56 $2.36	Min.: 1 Mult.: 1
Proximity Sensors 59140-3-S-02-F SENS 59140-3-S-02-F Littelfuse 1: $5.53 435In Stock	Mfr. Part # 59140-3-S-02-F Mouser Part # 934-59140-3-S-02-F	Littelfuse	Proximity Sensors 59140-3-S-02-F SENS Learn More about Littelfuse reed sensors	Datasheet	435In Stock	$5.53 $4.98 $4.87 $4.59 View $3.89 $3.77	Min.: 1 Mult.: 1
Proximity Sensors 59150-3-T-02-F SENS 59150-3-T-02-F Littelfuse 1: $5.90 480In Stock	Mfr. Part # 59150-3-T-02-F Mouser Part # 934-59150-3-T-02-F	Littelfuse	Proximity Sensors 59150-3-T-02-F SENS Learn More about Littelfuse reed sensors	Datasheet	480In Stock	$5.90 $5.31 $5.10 $4.84 View $4.66 $4.65 $4.16 $4.04	Min.: 1 Mult.: 1
Magnetic / Reed Switches 59165-1-T-00-A SENS 59165-1-T-00-A Littelfuse 1: $2.03 2,718In Stock	Mfr. Part # 59165-1-T-00-A Mouser Part # 934-59165-1-T-00-A	Littelfuse	Magnetic / Reed Switches 59165-1-T-00-A SENS Learn More about Littelfuse hamlin mdsr reed sensors	Datasheet	2,718In Stock	$2.03 $1.71 $1.59 $1.42 View $1.31 $1.29 $1.25 $1.21 $1.04	Min.: 1 Mult.: 1
Magnetic / Reed Switches MDRR-DT 1156 15-20 U MDRR-DT-15-20-U Littelfuse 1: $5.26 611In Stock	Mfr. Part # MDRR-DT-15-20-U Mouser Part # 934-MDRR-DT15-20U	Littelfuse	Magnetic / Reed Switches MDRR-DT 1156 15-20 U Learn More about Littelfuse reed switches	Datasheet	611In Stock	$5.26 $4.38 $4.06 $3.62 View $3.37 $3.21 $3.05 $2.88	Min.: 1 Mult.: 1
Proximity Sensors NC 15-20AT 1m TIN 59025 Firecracker 59025-4-S-05-A Littelfuse 1: $7.21 625In Stock	Mfr. Part # 59025-4-S-05-A Mouser Part # 934-59025-4-S-05-A	Littelfuse	Proximity Sensors NC 15-20AT 1m TIN 59025 Firecracker Learn More about Littelfuse hamlin 59025 firecracker sensors	Datasheet	625In Stock	$7.21 $6.51 $6.25 $5.94 View $5.73 $5.72 $5.43 $4.99	Min.: 1 Mult.: 1
Proximity Sensors PROX SEN THREAD BARREL SPST-NO 59065-1-S-02-A Littelfuse 1: $5.95 1,298In Stock	Mfr. Part # 59065-1-S-02-A Mouser Part # 934-59065-1-S-02-A	Littelfuse	Proximity Sensors PROX SEN THREAD BARREL SPST-NO Learn More about Littelfuse reed sensors	Datasheet	1,298In Stock	$5.95 $4.96 $4.59 $3.76 View $3.62 $3.45 $3.29	Min.: 1 Mult.: 1

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