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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 (CAD) 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: $44.35 1,215In Stock 183Expected 2026-11-30	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 2026-11-30	$44.35 $43.57 $42.64 $41.82 View $40.64 $40.62 Quote	Min.: 1 Mult.: 1
Hall Effect / Magnetic Sensors - Industrial 3 Wire SW 500mm TIN 55100-3H-04-A Littelfuse 1: $12.12 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	$12.12 $10.97 $10.54 $10.02 View $9.68 $9.36 $8.67 $8.40	Min.: 1 Mult.: 1
Magnetic / Reed Switches 59165-1-U-00-A SENS 59165-1-U-00-A Littelfuse 1: $2.92 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	$2.92 $2.46 $1.97 $1.81 View $1.71 $1.63 $1.60 $1.56	Min.: 1 Mult.: 1
Proximity Sensors PROX SEN VANE SPST-NO W/WIRE 59085-010 Littelfuse 1: $13.68 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	$13.68 $12.40 $11.92 $11.81 View $11.58 $11.45 $10.76 $10.63	Min.: 1 Mult.: 1
Reed Relays REED RELAY HE722A1210 Littelfuse 1: $5.44 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	$5.44 $4.85 $4.64 $4.48 View $4.32 $4.13 $3.97 $3.83	Min.: 1 Mult.: 1
Proximity Sensors NO 12-18AT 300mm Mini Flange Mount 59141-1-S-02-F Littelfuse 1: $7.04 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	$7.04 $6.31 $6.03 $5.72 View $5.50 $5.27 $4.22	Min.: 1 Mult.: 1
Hall Effect / Magnetic Sensors - Industrial MIN FLANGE MNT PROX SENS 3WIRE 55140-3M-02-A Littelfuse 1: $12.61 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	$12.61 $11.42 $10.97 $10.43 View $10.07 $9.72 $8.81 $8.70	Min.: 1 Mult.: 1
Proximity Sensors PROX SEN THREAD BARREL SPST-NC 59065-040 Littelfuse 1: $6.60 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	$6.60 $5.92 $5.67 $5.37 View $5.20 $5.18 $5.10 $5.08 $4.91	Min.: 1 Mult.: 1
Proximity Sensors 59065-4-T-02-F SENS 59065-4-T-02-F Littelfuse 1: $8.74 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	$8.74 $7.88 $7.56 $7.17 View $6.91 $6.65 $6.18 $5.99	Min.: 1 Mult.: 1
Proximity Sensors 59105-1-T-00-0 SENS 59105-1-T-00-0 Littelfuse 1: $9.99 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	$9.99 $9.01 $8.65 $8.22 View $7.93 $7.65 $7.10 $6.90	Min.: 1 Mult.: 1
Proximity Sensors PROXIMITY SENSORS 59145-4-T-02-F Littelfuse 1: $9.76 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	$9.76 $8.80 $8.44 $7.88 View $7.46 $6.97 $5.89 $5.76 $5.56	Min.: 1 Mult.: 1
Magnetic / Reed Switches CO 10-15AT SMT MDSM-DTB-10-15 Littelfuse 1: $7.91 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	$7.91 $6.60 $6.11 $5.44 View $5.07 $4.82 $4.55 $4.33 Quote	Min.: 1 Mult.: 1
Magnetic / Reed Switches NO 25-30AT MDSR-7-25-30 Littelfuse 1: $1.99 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	$1.99 $1.74 $1.61 $1.45 View $1.35 $1.29 $1.23 $1.14 $0.985	Min.: 1 Mult.: 1
Proximity Sensors PROX SENS CHANGE OVER UNTINNED 59025-3-T-02-F Littelfuse 1: $7.85 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	$7.85 $7.07 $6.78 $6.42 View $6.19 $5.96 $5.52 $5.36	Min.: 1 Mult.: 1
Proximity Sensors 59085-1-T-02-F SENS 59085-1-T-02-F Littelfuse 1: $11.53 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	$11.53 $10.43 $10.02 $9.52 View $9.19 $8.50 $8.47 $8.02	Min.: 1 Mult.: 1
Sensor Hardware & Accessories HARDWARE ACTUATOR MAGNET H-31-MAGNET Littelfuse 1: $2.10 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	$2.10 $1.86 $1.67 $1.60 View $1.50 $1.39 $1.34 $1.24	Min.: 1 Mult.: 1
Magnetic / Reed Switches 175V 5WATTS MDRR-DT-30-35-F Littelfuse 1: $7.39 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	$7.39 $6.42 $5.95 $5.30 View $4.94 $4.69 $4.46 $4.22	Min.: 1 Mult.: 1
Magnetic / Reed Switches MDSM-10R 5431 15-20 MDSM-10R-15-20 Littelfuse 1: $2.22 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 $2.22 $1.92 $1.81 $1.66 View Reel $1.31 $1.56 $1.48 $1.45 $1.31	Min.: 1 Mult.: 1 : 3,000
Proximity Sensors PROX SENSOR MINI FLANGE MOUNT 59140-020 Littelfuse 1: $6.05 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	$6.05 $6.03 $5.13 $4.82 View $4.81 $3.93 $3.79 $3.69 $3.40	Min.: 1 Mult.: 1
Proximity Sensors 59140-3-S-02-F SENS 59140-3-S-02-F Littelfuse 1: $7.96 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	$7.96 $7.17 $7.01 $6.61 View $5.60 $5.43	Min.: 1 Mult.: 1
Proximity Sensors 59150-3-T-02-F SENS 59150-3-T-02-F Littelfuse 1: $8.50 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	$8.50 $7.65 $7.34 $6.97 View $6.71 $6.70 $5.99 $5.82	Min.: 1 Mult.: 1
Magnetic / Reed Switches 59165-1-T-00-A SENS 59165-1-T-00-A Littelfuse 1: $2.92 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	$2.92 $2.46 $2.29 $2.04 View $1.89 $1.86 $1.80 $1.74 $1.50	Min.: 1 Mult.: 1
Magnetic / Reed Switches MDRR-DT 1156 15-20 U MDRR-DT-15-20-U Littelfuse 1: $7.57 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	$7.57 $6.31 $5.85 $5.21 View $4.85 $4.62 $4.39 $4.15	Min.: 1 Mult.: 1
Proximity Sensors NC 15-20AT 1m TIN 59025 Firecracker 59025-4-S-05-A Littelfuse 1: $10.38 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	$10.38 $9.37 $9.00 $8.55 View $8.25 $8.24 $7.82 $7.19	Min.: 1 Mult.: 1
Proximity Sensors PROX SEN THREAD BARREL SPST-NO 59065-1-S-02-A Littelfuse 1: $8.57 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	$8.57 $7.14 $6.61 $5.41 View $5.21 $4.97 $4.74	Min.: 1 Mult.: 1

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