Magnetic / Reed Switches

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Reed Switches

Littelfuse Reed Switches are ideal for battery-powered applications and automotive safety products. Reed switches have two ferromagnetic blades contained within a tubular glass envelope that is hermetically sealed at each end. Switches are activated by a permanent magnet or an electromagnet, and the reed switch and magnetic field combination is commonly known as the "magnetic circuit."

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) Filter the results in the table by unit price based on your quantity.	Qty.	Switch Type	Contact Form	Operate Range	Voltage Rating AC	Color	Mounting Style	Termination Style	Packaging
Magnetic / Reed Switches 59165-1-U-00-A SENS 59165-1-U-00-A Littelfuse 1: $2.229 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	$2.229 $1.471 $1.296 $1.197 View $1.153 $1.142 $1.109	Min.: 1 Mult.: 1	Miniature	SPST	20 AT to 25 AT	140 VAC	Black	PCB Mount	Axial	Bulk
Magnetic / Reed Switches MDSM-10R 5431 15-20 MDSM-10R-15-20 Littelfuse 1: $1.724 2.862In 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	2.862In Stock	Cut Tape $1.724 $1.460 $1.416 $1.263 View Reel $1.001 $1.186 $1.131 $1.109 $1.001	Min.: 1 Mult.: 1 : 3.000	Sub-Miniature	SPST	15 AT to 20 AT	140 VAC	Clear	PCB Mount	Axial	Reel, Cut Tape
Magnetic / Reed Switches 59165-1-T-00-A SENS 59165-1-T-00-A Littelfuse 1: $2.229 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	$2.229 $1.878 $1.746 $1.559 View $1.438 $1.416 $1.252 $1.230 $1.142	Min.: 1 Mult.: 1	Miniature	SPST	15 AT to 20 AT	140 VAC	Black	PCB Mount	Axial	Bulk
Magnetic / Reed Switches MDRR-DT 1156 15-20 U MDRR-DT-15-20-U Littelfuse 1: $5.775 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	$5.775 $4.809 $4.458 $3.975 View $3.700 $3.524 $3.250 $3.107	Min.: 1 Mult.: 1	Miniature	SPDT	15 AT to 20 AT	120 VAC	Clear	PCB Mount	SMD/SMT	Bulk
Magnetic / Reed Switches NO 17-23AT MRPR-20-17-23 Littelfuse 1: $3.766 1.600In Stock	Mfr. Part # MRPR-20-17-23 Mouser Part # 934-MRPR-20-17-23	Littelfuse	Magnetic / Reed Switches NO 17-23AT Learn More about Littelfuse reed switches	Datasheet	1.600In Stock	$3.766 $3.206 $2.943 $2.569 View $2.394 $2.240 $2.141	Min.: 1 Mult.: 1	Miniature	SPST	17 AT to 23 AT	265 VAC	Clear	PCB Mount	Axial	Bulk
Magnetic / Reed Switches 17-23AT NO 100V 10W 19.7MM REED MVSR-20-17-23 Littelfuse 1: $4.941 1.149In Stock	Mfr. Part # MVSR-20-17-23 Mouser Part # 934-MVSR-20-17-23	Littelfuse	Magnetic / Reed Switches 17-23AT NO 100V 10W 19.7MM REED Learn More about Littelfuse reed switches	Datasheet	1.149In Stock	$4.941 $4.128 $3.821 $3.404 View $3.305 $3.041	Min.: 1 Mult.: 1	Miniature	SPST	17 AT to 23 AT		Clear	PCB Mount	Axial	Bulk
Magnetic / Reed Switches MDRR-DT 1156 20-25 U MDRR-DT-20-25-U Littelfuse 1: $6.028 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	$6.028 $5.084 $4.743 $4.260 View $3.942 $3.799 $3.327 $3.151 Quote	Min.: 1 Mult.: 1	Miniature	SPDT	20 AT to 25 AT	120 VAC	Clear	PCB Mount	SMD/SMT	Bulk
Magnetic / Reed Switches NO 37-43AT MRPR-20-37-43 Littelfuse 1: $3.854 1.085In Stock	Mfr. Part # MRPR-20-37-43 Mouser Part # 934-MRPR-20-37-43	Littelfuse	Magnetic / Reed Switches NO 37-43AT Learn More about Littelfuse reed switches	Datasheet	1.085In Stock	$3.854 $3.228 $3.008 $2.679 View $2.492 $2.361 $2.295 $2.086 $2.064	Min.: 1 Mult.: 1	Miniature	SPST	37 AT to 43 AT	265 VAC	Clear	PCB Mount	Axial	Bulk
Magnetic / Reed Switches 59050-3-T-00-0 SENS 59050-3-T-00-0 Littelfuse 1: $5.468 629In 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	629In Stock	$5.468 $4.567 $4.227 $3.568 View $3.382 $3.283 $3.162 $2.986	Min.: 1 Mult.: 1				140 VAC		PCB Mount	Through Hole	Bulk
Magnetic / Reed Switches 59165-1-T-00-D SENS 59165-1-T-00-D Littelfuse 1: $1.592 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 $1.592 $1.438 $1.329 $1.197 Reel $826 View $1.109 $1.040 $861 $812	Min.: 1 Mult.: 1 : 1.500	Miniature	SPST	15 AT to 20 AT	140 VAC	Black	PCB Mount	Gull Wing Lead	Reel, Cut Tape
Magnetic / Reed Switches HA15-2 17-23 HA15-2-17-23 Littelfuse 1: $2.558 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	$2.558 $2.163 $1.998 $1.779 View $1.658 $1.570 $1.361 $1.350 $1.329	Min.: 1 Mult.: 1	Sub-Miniature	SPST	17 AT to 23 AT	265 VAC	Clear	PCB Mount	Axial	Bulk
Magnetic / Reed Switches MDSM-10R 5431 10-25 MDSM-10R-10-25 Littelfuse 1: $1.888 2.390In 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	2.390In Stock	Cut Tape $1.888 $1.625 $1.504 $1.340 Reel $926 View $1.241 $1.175 $1.120 $885	Min.: 1 Mult.: 1 : 3.000	Sub-Miniature	SPST	10 AT to 25 AT	140 VAC	Clear	PCB Mount	Axial	Reel, Cut Tape
Magnetic / Reed Switches 59050 020 SENSOR 59050-020 Littelfuse 1: $3.821 999In Stock	Mfr. Part # 59050-020 Mouser Part # 934-59050-020	Littelfuse	Magnetic / Reed Switches 59050 020 SENSOR Learn More about Littelfuse 59050 reed switches	Datasheet	999In Stock	$3.821 $3.206 $2.964 $2.503 View $2.350 $2.317 $2.185 $2.075 $2.031	Min.: 1 Mult.: 1	Miniature	SPST			Black	PCB Mount	Through Hole	Bulk
Magnetic / Reed Switches 59050 030 PROX SENSOR 59050-030 Littelfuse 1: $5.731 1.067In Stock	Mfr. Part # 59050-030 Mouser Part # 934-59050-030	Littelfuse	Magnetic / Reed Switches 59050 030 PROX SENSOR Learn More about Littelfuse 59050 reed switches	Datasheet	1.067In Stock	$5.731 $4.787 $4.436 $3.744 View $3.546 $3.491 $3.437 $3.140	Min.: 1 Mult.: 1	Miniature	SPST			Black	PCB Mount	Through Hole	Bulk
Magnetic / Reed Switches 59170-1-S-00-C SENSOR 59170-1-S-00-C Littelfuse 1: $2.800 5.712In Stock	Mfr. Part # 59170-1-S-00-C Mouser Part # 934-59170-1-S-00-C	Littelfuse	Magnetic / Reed Switches 59170-1-S-00-C SENSOR Learn More about Littelfuse hamlin mdsr reed sensors	Datasheet	5.712In Stock	$2.800 $2.361 $2.185 $1.954 View $1.812 $1.713 $1.581 $1.504	Min.: 1 Mult.: 1	Sub-Miniature	SPST	10 AT to 15 AT	140 VAC	Black	PCB Mount	Gull Wing Lead	Bulk
Magnetic / Reed Switches NO 10-15AT 7.5mm Overmolded Sensor 59166-1-S-00-C Littelfuse 1: $1.823 125In Stock 3.000Expected 2/1/2027	Mfr. Part # 59166-1-S-00-C Mouser Part # 934-59166-1-S-00-C	Littelfuse	Magnetic / Reed Switches NO 10-15AT 7.5mm Overmolded Sensor Learn More about Littelfuse 59166 reed switches	Datasheet	125In Stock 3.000Expected 2/1/2027	$1.823 $1.592 $1.449 $1.329 View $1.164 $1.091 $1.033 $991	Min.: 1 Mult.: 1	Miniature	SPST	10 AT to 15 AT	140 VAC	Black	PCB Mount	Gull Wing Lead	Bulk
Magnetic / Reed Switches MDSM-10B 5430 10-15 MDSM-10B-10-15 Littelfuse 1: $1.823 247In Stock	Mfr. Part # MDSM-10B-10-15 Mouser Part # 934-MDSM-10B10-15	Littelfuse	Magnetic / Reed Switches MDSM-10B 5430 10-15 Learn More about Littelfuse reed switches	Datasheet	247In Stock	$1.823 $1.581 $1.515 $1.372 View $1.274 $1.219 $969 $907 $866	Min.: 1 Mult.: 1	Sub-Miniature	SPST	10 AT to 15 AT	140 VAC	Clear	PCB Mount	Axial	Bulk
Magnetic / Reed Switches MDRR-DT 1156 15-30 U MDRR-DT-15-30-U Littelfuse 1: $5.863 2.296In Stock	Mfr. Part # MDRR-DT-15-30-U Mouser Part # 934-MDRR-DT15-30U	Littelfuse	Magnetic / Reed Switches MDRR-DT 1156 15-30 U Learn More about Littelfuse Hamlin MDRR DT	Datasheet	2.296In Stock	$5.863 $4.897 $4.535 $4.051 View $3.766 $3.579 $3.535 $3.513	Min.: 1 Mult.: 1	Miniature	SPDT	15 AT to 30 AT	120 VAC	Clear	PCB Mount	SMD/SMT	Bulk
Magnetic / Reed Switches 59165-1-S-00-C SENS 59165-1-S-00-C Littelfuse 1: $2.262 1.000In Stock	Mfr. Part # 59165-1-S-00-C Mouser Part # 934-59165-1-S-00-C	Littelfuse	Magnetic / Reed Switches 59165-1-S-00-C SENS Learn More about Littelfuse hamlin mdsr reed sensors	Datasheet	1.000In Stock	$2.262 $1.932 $1.801 $1.603 View $1.493 $1.427 $1.350 $1.296 $1.252	Min.: 1 Mult.: 1	Miniature	SPST	10 AT to 15 AT	140 VAC	Black	PCB Mount	Gull Wing Lead	Bulk
Magnetic / Reed Switches 59170-1-T-00-A SENS 59170-1-T-00-A Littelfuse 1: $2.800 654In Stock	Mfr. Part # 59170-1-T-00-A Mouser Part # 934-59170-1-T-00-A	Littelfuse	Magnetic / Reed Switches 59170-1-T-00-A SENS Learn More about Littelfuse hamlin mdsr reed sensors	Datasheet	654In Stock	$2.800 $2.361 $2.185 $1.943 View $1.812 $1.658 $1.570 $1.493 $1.460	Min.: 1 Mult.: 1	Sub-Miniature	SPST	15 AT to 20 AT	140 VAC	Black	PCB Mount	Axial	Bulk
Magnetic / Reed Switches MDSM-4R 5277 17-23 MDSM-4R-17-23 Littelfuse 1: $1.581 1.663In Stock	Mfr. Part # MDSM-4R-17-23 Mouser Part # 934-MDSM-4R17-23	Littelfuse	Magnetic / Reed Switches MDSM-4R 5277 17-23 Learn More about Littelfuse reed switches	Datasheet	1.663In Stock	Cut Tape $1.581 $1.350 $1.252 $1.120 Reel $921 View $1.028 $982 $972 $920 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Sub-Miniature	SPST	17 AT to 23 AT	140 VAC	Clear	PCB Mount	Axial	Reel, Cut Tape, MouseReel
Magnetic / Reed Switches 59050-1-T-00-0 SENS 59050-1-T-00-0 Littelfuse 1: $2.767 853In Stock	Mfr. Part # 59050-1-T-00-0 Mouser Part # 934-59050-1-T-00-0	Littelfuse	Magnetic / Reed Switches 59050-1-T-00-0 SENS Learn More about Littelfuse 59050 reed switches	Datasheet	853In Stock	$2.767 $2.328 $2.163 $2.075 View $1.713 $1.658 $1.570 $1.493 $1.438	Min.: 1 Mult.: 1	Miniature	SPST	17 AT to 23 AT	140 VAC	Black	PCB Mount	Through Hole	Bulk
Magnetic / Reed Switches 59170-1-U-00-A SENS 59170-1-U-00-A Littelfuse 1: $2.800 848In Stock	Mfr. Part # 59170-1-U-00-A Mouser Part # 934-59170-1-U-00-A	Littelfuse	Magnetic / Reed Switches 59170-1-U-00-A SENS Learn More about Littelfuse hamlin mdsr reed sensors	Datasheet	848In Stock	$2.800 $2.361 $2.185 $1.943 View $1.812 $1.658 $1.504 $1.482 $1.460	Min.: 1 Mult.: 1	Sub-Miniature	SPST	20 AT to 25 AT	140 VAC	Black	PCB Mount	Axial	Bulk
Magnetic / Reed Switches SPST 140VAC, 15 AT-20 AT Range MDSR-10-15-20 Littelfuse 1: $1.526 1.781In Stock	Mfr. Part # MDSR-10-15-20 Mouser Part # 934-MDSR-1015-20	Littelfuse	Magnetic / Reed Switches SPST 140VAC, 15 AT-20 AT Range Learn More about Littelfuse mdsr 10 reed switches	Datasheet	1.781In Stock	$1.526 $1.296 $1.208 $1.072 View $994 $940 $816 $811 $795	Min.: 1 Mult.: 1	Sub-Miniature	SPST	15 AT to 20 AT	140 VAC	Clear	PCB Mount	Axial	Bulk
Magnetic / Reed Switches NO 20-25AT 5mm Overmolded Sensor 59166-1-U-00-D Littelfuse 1: $1.427 1.216In Stock	Mfr. Part # 59166-1-U-00-D Mouser Part # 934-59166-1-U-00-D	Littelfuse	Magnetic / Reed Switches NO 20-25AT 5mm Overmolded Sensor Learn More about Littelfuse 59166 reed switches	Datasheet	1.216In Stock	Cut Tape $1.427 $1.263 $1.175 $1.038 Reel $837 View $973 $922 $899 $796	Min.: 1 Mult.: 1 : 1.500	Miniature	SPST	20 AT to 25 AT	140 VAC	Black	PCB Mount	Gull Wing Lead	Reel, Cut Tape