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 NO 15-20AT 6.5mm Overmolded Sensor
Datasheet
245In Stock
Min.: 1
Mult.: 1
: 1,000

Miniature SPST 15 AT to 20 AT 140 VAC Black PCB Mount Gull Wing Lead Reel, Cut Tape
Littelfuse Magnetic / Reed Switches 59170-1-T-00-C SENS
Datasheet
767In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 15 AT to 20 AT 140 VAC Black PCB Mount Gull Wing Lead Bulk
Littelfuse Magnetic / Reed Switches 50-80AT CO 500V 30W 39.7MM REED
Datasheet
105In Stock
A tariff of 10% may be applied if shipping to the United States.
Min.: 1
Mult.: 1

Reed SPDT 50 AT to 80 AT Clear PCB Mount Axial Bulk
Littelfuse Magnetic / Reed Switches FLEX-14-20-25
Datasheet
1,474In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 20 AT to 25 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic / Reed Switches FLEX-14-25-30
Datasheet
890In 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
729In Stock
1,000Expected 8/27/2026
Min.: 1
Mult.: 1

Sub-Miniature SPST 10 AT to 15 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic / Reed Switches 14mm SPST-NO 10-15AT
Datasheet
868In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 10 AT to 30 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic / Reed Switches 14mm SPST-NO 15-20AT
Datasheet
223In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 10 AT to 30 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic / Reed Switches 14mm SPST-NO 25-30AT
Datasheet
714In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 25 AT to 30 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic / Reed Switches MDCG-4 12-18
Datasheet
1,333In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 12 AT to 18 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic / Reed Switches SWITCH REED
Datasheet
1,152In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 12 AT to 23 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic / Reed Switches MDCG-4 17-23
Datasheet
1,138In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 17 AT to 23 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic / Reed Switches MDCG-4 5265 17-28 RDSW
Datasheet
981In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 17 AT to 28 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic / Reed Switches MDCG-4 22-28
Datasheet
300In Stock
3,000Expected 8/31/2026
Min.: 1
Mult.: 1

Sub-Miniature SPST 22 AT to 28 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic / Reed Switches MDRR-DT 1156 20-25 F
Datasheet
28In Stock
1,000Expected 11/9/2026
Min.: 1
Mult.: 1

Miniature SPDT 20 AT to 25 AT 120 VAC Clear PCB Mount SMD/SMT Bulk
Littelfuse Magnetic / Reed Switches MDRR-DT 1156 25-30 U
Datasheet
182In Stock
1,000Expected 1/18/2027
Min.: 1
Mult.: 1

Miniature SPDT 25 AT to 30 AT 120 VAC Clear PCB Mount SMD/SMT Bulk
Littelfuse Magnetic / Reed Switches MDSM-4B 5276 12-18
Datasheet
20In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 12 AT to 18 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic / Reed Switches MDSM-4B 5276 32-38
Datasheet
321In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 32 AT to 38 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic / Reed Switches MDSR-10 10-15
Datasheet
751In Stock
1,000Expected 9/3/2026
Min.: 1
Mult.: 1

Sub-Miniature SPST 10 AT to 15 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic / Reed Switches MDSR-7 10-15
Datasheet
830In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 10 AT to 15 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic / Reed Switches SWITCH REED
Datasheet
900In Stock
2,000Expected 9/3/2026
Min.: 1
Mult.: 1

Sub-Miniature SPST 10 AT to 25 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic / Reed Switches MLRR-3 32-38
Datasheet
221In Stock
Min.: 1
Mult.: 1

Miniature SPST 32 AT to 38 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic / Reed Switches MLRR-4 17-23
Datasheet
1,478In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 17 AT to 23 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic / Reed Switches MLRR-4 17-28
Datasheet
828In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 17 AT to 28 AT 140 VAC Clear PCB Mount Axial Case
Littelfuse Magnetic / Reed Switches MLRR-4 27-33
Datasheet
701In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 27 AT to 33 AT 140 VAC Clear PCB Mount Axial Bulk