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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 12,988In 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	12,988In 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
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
Proximity Sensors 59085 030 PROX SENSOR 59085-030 Littelfuse 1: $9.69 261In Stock	Mfr. Part # 59085-030 Mouser Part # 934-59085-030	Littelfuse	Proximity Sensors 59085 030 PROX SENSOR Learn More about Littelfuse sensors	Datasheet	261In Stock	$9.69 $8.04 $7.45 $6.65 View $5.91 $5.65	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 $5.25 $4.98 View $4.80 $4.62 $4.29 $4.16	Min.: 1 Mult.: 1
Proximity Sensors 59145-3-S-02-A SENS 59145-3-S-02-A Littelfuse 1: $7.29 497In 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	497In Stock	$7.29 $6.49 $6.11 $5.66 View $5.34 $5.04 $4.29 $4.16	Min.: 1 Mult.: 1
Proximity Sensors PROX SENSOR FLANGE MT 59150-030 Littelfuse 1: $6.77 703In Stock	Mfr. Part # 59150-030 Mouser Part # 934-59150-030	Littelfuse	Proximity Sensors PROX SENSOR FLANGE MT Learn More about Littelfuse sensors	Datasheet	703In Stock	$6.77 $5.63 $5.22 $4.27 View $4.12 $3.93 $3.78	Min.: 1 Mult.: 1
Magnetic / Reed Switches Sub-Mini NO Switch MDCG-4-7-13 Littelfuse 1: $1.23 7,006In 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	7,006In Stock	$1.23 $1.05 $0.972 $0.866 View $0.803 $0.759 $0.747 $0.717 $0.704	Min.: 1 Mult.: 1
Magnetic / Reed Switches MDRR-DT 1156 20-25 U MDRR-DT-20-25-U Littelfuse 1: $5.71 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	$5.71 $4.88 $4.57 $4.13 View $3.81 $3.71 $3.05 $2.88	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 1,847In 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	1,847In 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
Magnetic / Reed Switches 59050-3-T-00-0 SENS 59050-3-T-00-0 Littelfuse 1: $4.98 623In Stock	Mfr. Part # 59050-3-T-00-0 Mouser Part # 576-59050-3-T-00-0	Littelfuse	Magnetic / Reed Switches 59050-3-T-00-0 SENS Learn More about Littelfuse 59050 reed switches	Datasheet	623In Stock	$4.98 $4.16 $3.85 $3.25 View $3.08 $2.99 $2.88 $2.72	Min.: 1 Mult.: 1
Sensor Hardware & Accessories HARDWARE ACTUATOR MAGNET 57105-000 Littelfuse 1: $2.35 2,831In Stock	Mfr. Part # 57105-000 Mouser Part # 934-57105-000	Littelfuse	Sensor Hardware & Accessories HARDWARE ACTUATOR MAGNET Learn More about Littelfuse magnetic actuators	Datasheet	2,831In Stock	$2.35 $2.09 $1.88 $1.81 View $1.73 $1.62 $1.57 $1.55 $1.54	Min.: 1 Mult.: 1
Proximity Sensors 59145-1-S-02-A SENS 59145-1-S-02-A Littelfuse 1: $3.79 2,917In Stock	Mfr. Part # 59145-1-S-02-A Mouser Part # 934-59145-1-S-02-A	Littelfuse	Proximity Sensors 59145-1-S-02-A SENS Learn More about Littelfuse reed sensors	Datasheet	2,917In Stock	$3.79 $3.40 $3.25 $3.08 View $2.96 $2.84 $2.51 $2.46 $2.41	Min.: 1 Mult.: 1
Magnetic / Reed Switches 59165-1-T-00-D SENS 59165-1-T-00-D Littelfuse 1: $1.52 8,075In Stock	Mfr. Part # 59165-1-T-00-D Mouser Part # 934-59165-1-T-00-D	Littelfuse	Magnetic / Reed Switches 59165-1-T-00-D SENS Learn More about Littelfuse hamlin mdsr reed sensors	Datasheet	8,075In Stock	Cut Tape $1.52 $1.31 $1.22 $1.09 View Reel $0.784 $1.01 $0.948 $0.784 $0.784	Min.: 1 Mult.: 1 : 1,500
Magnetic / Reed Switches HA15-2 17-23 HA15-2-17-23 Littelfuse 1: $2.33 1,036In Stock	Mfr. Part # HA15-2-17-23 Mouser Part # 934-HA15-217-23	Littelfuse	Magnetic / Reed Switches HA15-2 17-23 Learn More about Littelfuse reed switches	Datasheet	1,036In Stock	$2.33 $1.97 $1.82 $1.63 View $1.51 $1.43 $1.42 $1.25 $1.21	Min.: 1 Mult.: 1
Magnetic / Reed Switches MDSM-10R 5431 10-25 MDSM-10R-10-25 Littelfuse 1: $1.63 2,190In Stock	Mfr. Part # MDSM-10R-10-25 Mouser Part # 934-MDSM-10R10-25	Littelfuse	Magnetic / Reed Switches MDSM-10R 5431 10-25 Learn More about Littelfuse reed switches	Datasheet	2,190In Stock	Cut Tape $1.63 $1.43 $1.33 $1.20 Reel $0.843 View $1.13 $1.07 $1.02 $0.806	Min.: 1 Mult.: 1 : 3,000

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