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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Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Switch Type
Contact Form
Operate Range
Voltage Rating AC
Color
Mounting Style
Termination Style
Packaging
Littelfuse Magnetic/Reed Switches 59170-1-S-00-A SENS
Datasheet
5,089In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 10 AT to 15 AT 140 VAC Black PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches SUB-MIN OVERMOLD REED SWT GULL
Datasheet
11,726In Stock
15,000Expected 08/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Sub-Miniature SPST 10 AT to 15 AT 140 VAC Black PCB Mount Gull Wing Lead Reel, Cut Tape, MouseReel
Littelfuse Magnetic/Reed Switches 59170-1-T-00-D SENSOR
Datasheet
6,721In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Sub-Miniature SPST 15 AT to 20 AT 140 VAC Black PCB Mount Gull Wing Lead Reel, Cut Tape, MouseReel
Littelfuse Magnetic/Reed Switches SUB-MIN OVERMOLD REED SWT GULL
Datasheet
5,527In Stock
4,500Expected 12/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

Sub-Miniature SPST 20 AT to 25 AT 140 VAC Black SMD/SMT Gull Wing Lead Reel, Cut Tape, MouseReel
Littelfuse Magnetic/Reed Switches 75-80AT CO 500V 30W 39.7MM REED
Datasheet
387In Stock
Min.: 1
Mult.: 1

Reed SPDT 75 AT to 80 AT Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches SWITCH REED
Datasheet
3,149In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 15 AT to 20 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches SWITCH REED
Datasheet
14,081In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 27 AT to 33 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches MDRR-DT-10-15-F
Datasheet
997In Stock
Min.: 1
Mult.: 1

Miniature SPDT 10 AT to 15 AT 120 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches MDRR-DT-10-15-U
Datasheet
689In Stock
Min.: 1
Mult.: 1

Miniature SPDT 10 AT to 15 AT 120 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches SWITCH REED
Datasheet
438In Stock
3,000Expected 02/09/2026
Min.: 1
Mult.: 1

Miniature SPDT 15 AT to 20 AT 120 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches SWITCH REED
Datasheet
2,314In Stock
2,000Expected 26/04/2027
Min.: 1
Mult.: 1

Miniature SPDT 15 AT to 30 AT 120 VAC Clear PCB Mount SMD/SMT Bulk
Littelfuse Magnetic/Reed Switches SWITCH REED
Datasheet
3,076In Stock
Min.: 1
Mult.: 1

Miniature SPDT 25 AT to 30 AT 120 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches MDSM-10R 5431 10-15
Datasheet
10,446In Stock
Min.: 1
Mult.: 1
: 3,000

Sub-Miniature SPST 10 AT to 15 AT 140 VAC Clear PCB Mount Axial Reel, Cut Tape
Littelfuse Magnetic/Reed Switches SWITCH REED
Datasheet
9,175In Stock
Min.: 1
Mult.: 1
: 3,000

Sub-Miniature SPST 20 AT to 25 AT 140 VAC Clear PCB Mount Axial Reel, Cut Tape
Littelfuse Magnetic/Reed Switches SWITCH REED
Datasheet
8,227In Stock
18,000Expected 09/11/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Sub-Miniature SPST 12 AT to 18 AT 140 VAC Clear PCB Mount SMD/SMT Reel, Cut Tape, MouseReel
Littelfuse Magnetic/Reed Switches MDSR-7 15-20
Datasheet
3,897In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 15 AT to 20 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches MDSR-7 20-25
Datasheet
3,019In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 20 AT to 25 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches SWITCH REED
Datasheet
2,134In Stock
Min.: 1
Mult.: 1

Miniature SPST 17 AT to 23 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches NO 17-43AT
Datasheet
1,910In Stock
Min.: 1
Mult.: 1

Miniature SPST 17 AT to 43 AT 265 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches NO 22-28AT
Datasheet
1,000In Stock
Min.: 1
Mult.: 1

Miniature SPST 22 AT to 28 AT 265 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches NO 37-43AT
Datasheet
1,085In Stock
Min.: 1
Mult.: 1

Miniature SPST 37 AT to 43 AT 265 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches 17-23AT NO 100V 10W 19.7MM REED
Datasheet
1,149In Stock
Min.: 1
Mult.: 1

Miniature SPST 17 AT to 23 AT Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches 32-38AT NO 100V 10W 19.7MM REED
Datasheet
1,008In Stock
Min.: 1
Mult.: 1

Miniature SPST 32 AT to 38 AT Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches SWITCH REED
Datasheet
2,174In Stock
Min.: 1
Mult.: 1

Miniature SPDT 15 AT to 25 AT 120 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches 59045-1-T-00-0 SENS
Datasheet
34In Stock
2,000On Order
Min.: 1
Mult.: 1

Miniature SPST 20 AT to 25 AT 140 VAC Black PCB Mount Through Hole Bulk