MDCG-4 Reed Switches

Littelfuse MDCG-4 Reed Switches are sub-miniature, normally open switches measuring 15.24mm x 2.28mm (0.600" x 0.090"). These Littelfuse devices feature a glass envelope and are capable of switching 200VDC at 10W. Other highlights include a sensitivity range of 7-43AT, high insulation resistance of 1010Ω, and low contact resistance of less than 100mΩ. Suitable applications include reed relays, security, metering, and limit sensing.

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Description Datasheet Availability Pricing (SGD) 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 Sub-Mini NO Switch
Datasheet
7,293In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 7 AT to 13 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches SWITCH REED
Datasheet
20,291In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 27 AT to 33 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches MDCG-4 17-23
Datasheet
1,767In 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 22-28
Datasheet
1,463In Stock
2,000Expected 14/5/2026
Min.: 1
Mult.: 1

Sub-Miniature SPST 22 AT to 28 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches MDCG-4 12-18
Datasheet
1,589In 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
45In Stock
1,000Expected 10/4/2026
Min.: 1
Mult.: 1

Sub-Miniature SPST 12 AT to 33 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches MDCG-4 22-38
Datasheet
302In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 22 AT to 38 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches SWITCH REED
Datasheet
160In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 32 AT to 38 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches Sub-Mini NO Switch
Datasheet
989In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 37 AT to 43 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches SWITCH REED
Datasheet
740In 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 12-38
Datasheet
169In Stock
Min.: 1
Mult.: 1

Sub-Miniature SPST 12 AT to 38 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 12-28
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

Sub-Miniature SPST 12 AT to 28 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches MDCG-4 17-38
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

Sub-Miniature SPST 17 AT to 38 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches MDCG-4 22-33
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

Sub-Miniature SPST 22 AT to 33 AT 140 VAC Clear PCB Mount Axial Bulk
Littelfuse Magnetic/Reed Switches MDCG-4 27-38
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 1
Mult.: 1

Sub-Miniature SPST 27 AT to 38 AT 140 VAC Clear PCB Mount Axial Bulk