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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 1,195In Stock 183Expected 11/23/2026	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	1,195In Stock 183Expected 11/23/2026	$30.80 $30.26 $29.63 $29.18 View $28.90 $28.54 $28.53 Quote	Min.: 1 Mult.: 1
Hall Effect / Magnetic Sensors - Industrial 3 Wire SW 500mm TIN 55100-3H-04-A Littelfuse 1: $9.18 4,762In 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	4,762In Stock	$9.18 $8.14 $7.74 $7.26 View $6.93 $6.62 $6.52 $5.85 $5.69	Min.: 1 Mult.: 1
Magnetic / Reed Switches 59165-1-U-00-A SENS 59165-1-U-00-A Littelfuse 1: $2.03 13,186In 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	13,186In Stock	$2.03 $1.34 $1.18 $1.09 View $1.05 $1.04 $1.01	Min.: 1 Mult.: 1
Proximity Sensors PROX SEN VANE SPST-NO W/WIRE 59085-010 Littelfuse 1: $9.43 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	$9.43 $8.54 $8.28 $8.02 View $7.95 $7.83 $7.74 $7.41	Min.: 1 Mult.: 1
Reed Relays REED RELAY HE722A1210 Littelfuse 1: $3.78 5,871In 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	5,871In Stock	$3.78 $3.37 $3.22 $3.11 View $3.00 $2.87 $2.76 $2.66 $2.65	Min.: 1 Mult.: 1
Proximity Sensors 59140-4-U-02-A SENS 59140-4-U-02-A Littelfuse 1: $4.95 480In Stock	Mfr. Part # 59140-4-U-02-A Mouser Part # 934-59140-4-U-02-A	Littelfuse	Proximity Sensors 59140-4-U-02-A SENS Learn More about Littelfuse reed sensors	Datasheet	480In Stock	$4.95 $4.46 $4.27 $4.05 View $3.90 $3.75 $3.66	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 $3.78 $3.72 $3.69	Min.: 1 Mult.: 1
Proximity Sensors 59085-1-T-02-F SENS 59085-1-T-02-F Littelfuse 1: $8.01 971In 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	971In Stock	$8.01 $7.24 $6.95 $6.61 View $6.38 $5.90 $5.60 $5.57	Min.: 1 Mult.: 1
Magnetic / Reed Switches 175V 5WATTS MDRR-DT-30-35-F Littelfuse 1: $5.34 847In Stock 1,000Expected 11/9/2026	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	847In Stock 1,000Expected 11/9/2026	$5.34 $4.45 $4.12 $3.68 View $3.42 $3.25 $3.10 $2.93	Min.: 1 Mult.: 1
Magnetic / Reed Switches MDSM-10R 5431 15-20 MDSM-10R-15-20 Littelfuse 1: $1.57 2,860In 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	2,860In Stock	Cut Tape $1.57 $1.33 $1.29 $1.15 View Reel $0.912 $1.08 $1.03 $1.01 $0.912	Min.: 1 Mult.: 1 : 3,000
Proximity Sensors NC 15-20AT 1m TIN 59025 Firecracker 59025-4-S-05-A Littelfuse 1: $7.21 690In 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	690In Stock	$7.21 $6.51 $6.25 $5.94 View $5.73 $5.52 $5.14 $4.99	Min.: 1 Mult.: 1
Proximity Sensors PROX SEN THREAD BARREL SPST-NO 59065-1-S-02-A Littelfuse 1: $5.95 1,299In 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	1,299In Stock	$5.95 $4.96 $4.59 $3.73 View $3.50 $3.39 $3.29	Min.: 1 Mult.: 1
Proximity Sensors 59085 030 PROX SENSOR 59085-030 Littelfuse 1: $9.69 265In Stock	Mfr. Part # 59085-030 Mouser Part # 934-59085-030	Littelfuse	Proximity Sensors 59085 030 PROX SENSOR Learn More about Littelfuse sensors	Datasheet	265In Stock	$9.69 $9.68 $8.03 $7.44 View $7.43 $6.65 $6.13 $5.91 $5.65	Min.: 1 Mult.: 1
Sensor Hardware & Accessories HARDWARE ACTUATOR MAGNET H-33-MAGNET Littelfuse 1: $2.57 2,433In Stock	Mfr. Part # H-33-MAGNET Mouser Part # 934-H-33	Littelfuse	Sensor Hardware & Accessories HARDWARE ACTUATOR MAGNET Learn More about Littelfuse magnetic actuators	Datasheet	2,433In Stock	$2.57 $2.27 $1.49 $1.44 View $1.38 $1.31	Min.: 1 Mult.: 1
Magnetic / Reed Switches MDRR-DT-30-35-U MDRR-DT-30-35-U Littelfuse 1: $5.26 745In Stock	Mfr. Part # MDRR-DT-30-35-U Mouser Part # 934-MDRR-DT30-35U	Littelfuse	Magnetic / Reed Switches MDRR-DT-30-35-U Learn More about Littelfuse sensors	Datasheet	745In Stock	$5.26 $4.38 $4.06 $3.62 View $3.56 $3.50 $3.49 Quote	Min.: 1 Mult.: 1
Proximity Sensors 59025-3-S-02-A 59025-3-S-02-A Littelfuse 1: $5.53 422In Stock	Mfr. Part # 59025-3-S-02-A Mouser Part # 934-59025-3-S-02-A	Littelfuse	Proximity Sensors 59025-3-S-02-A Learn More about Littelfuse hamlin 59025 firecracker sensors	Datasheet	422In Stock	$5.53 $4.98 $4.77 $4.52 View $4.36 $4.11 $3.88 $3.77 $3.62	Min.: 1 Mult.: 1
Proximity Sensors PROX SENSOR MINI FLANGE MOUNT 59140-020 Littelfuse 1: $4.30 1,439In Stock	Mfr. Part # 59140-020 Mouser Part # 934-59140-020	Littelfuse	Proximity Sensors PROX SENSOR MINI FLANGE MOUNT Learn More about Littelfuse sensors	Datasheet	1,439In Stock	$4.30 $3.62 $3.35 $2.73 $2.68	Min.: 1 Mult.: 1
Proximity Sensors 59140-3-S-02-F SENS 59140-3-S-02-F Littelfuse 1: $5.53 485In 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	485In Stock	$5.53 $4.97 $4.88 $4.76 View $4.62 $4.39 $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 485In 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	485In Stock	$5.90 $5.31 $5.10 $4.84 View $4.66 $4.57 $4.16 $4.04 $4.03	Min.: 1 Mult.: 1
Magnetic / Reed Switches 59165-1-T-00-A SENS 59165-1-T-00-A Littelfuse 1: $2.03 2,834In 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	2,834In Stock	$2.03 $1.71 $1.59 $1.42 View $1.31 $1.29 $1.14 $1.12 $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 $2.96 $2.83	Min.: 1 Mult.: 1
Proximity Sensors 300V 1000mm TINNED LEADS 59145-2-T-05-F Littelfuse 1: $6.07 500In Stock	Mfr. Part # 59145-2-T-05-F Mouser Part # 934-59145-2-T-05-F	Littelfuse	Proximity Sensors 300V 1000mm TINNED LEADS Learn More about Littelfuse reed sensors	Datasheet	500In Stock	$6.07 $5.47 $5.24 $4.98 View $4.80 $4.53 $4.16	Min.: 1 Mult.: 1
Proximity Sensors 59145-3-S-02-A SENS 59145-3-S-02-A Littelfuse 1: $6.07 498In Stock	Mfr. Part # 59145-3-S-02-A Mouser Part # 934-59145-3-S-02-A	Littelfuse	Proximity Sensors 59145-3-S-02-A SENS Learn More about Littelfuse reed sensors	Datasheet	498In Stock	$6.07 $5.47 $5.25 $4.98 View $4.80 $4.62 $4.61	Min.: 1 Mult.: 1
Magnetic / Reed Switches Sub-Mini NO Switch MDCG-4-7-13 Littelfuse 1: $1.23 7,029In Stock	Mfr. Part # MDCG-4-7-13 Mouser Part # 934-MDCG-4-7-13	Littelfuse	Magnetic / Reed Switches Sub-Mini NO Switch Learn More about Littelfuse Hamlin MDCG 4	Datasheet	7,029In Stock	$1.23 $1.05 $0.972 $0.866 View $0.803 $0.759 $0.68 $0.665 $0.659	Min.: 1 Mult.: 1
Magnetic / Reed Switches MDRR-DT 1156 20-25 U MDRR-DT-20-25-U Littelfuse 1: $5.49 712In Stock	Mfr. Part # MDRR-DT-20-25-U Mouser Part # 934-MDRR-DT20-25U	Littelfuse	Magnetic / Reed Switches MDRR-DT 1156 20-25 U Learn More about Littelfuse reed switches	Datasheet	712In Stock	$5.49 $4.63 $4.32 $3.88 View $3.59 $3.46 $3.03 $2.87 Quote	Min.: 1 Mult.: 1

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