Microswitches

Microswitches are mechanically operated electrical switches designed with an actuator and terminals called common, normally open and normally closed. A micro switch is also known as a snap action switch, they operate by using a spring loaded lever to open and close a set of internal contacts inside the unit.

How does a microswitch work?

Power is typically attached to the common terminal, this leads into the switch and energises the spring and because the spring is touching the normally close pin it sends power out here, this is called a resting state. Once the arm is moved the power is then transferred to the normally open pin.

Where would you find them?

Microswitches are differentiated by their electrical characteristics. These are small devices and generally only designed to carry low current and voltages. These switches are very commonly employed as safety devices, as they are reliable, inexpensive and can open up a circuit when needed, preventing a machine from being turned on or a door from closing when someone is in the way.

Actuator types

There are various types available but the operating principles are the same, switches are actuated by a plunger, a button, a roller or a lever.

What is their operating life?

Microswitches operating life is generally very high, being measured in millions of cycles, in most cases. Consumer products generally have lighter-duty microswitches than industrial products, but the low cost of these parts makes it easy enough to upgrade to higher mechanical life expectancies when required or when it's simply beneficial to do so.

Standards

We offer a range of high quality sealed miniature and sub-miniature microswitches that meet industry standards and RoHS compliance.

What type of applications need microswitches?

Microswitches are used in consumer devices and industrial equipment. Common application for these devices are in door interlocks, microwave ovens or where a door has to be shut before the power to the device will turn on. Microswitches are also used in levelling devices, such as those used on vending machines. In an elevator, these devices are used in the door as a safety switch.

Microswitches can be designed to be very sensitive. Such designs can be used in very precise equipment, such as that which measures the flow of air or other gasses through a system. These devices are used extensively in industry, often in control circuits.

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Description Price Actuator Type Terminal Type Contact Current Rating Contact Configuration IP Rating Operating Force Minimum Operating Temperature Maximum Operating Temperature Switch Housing Contact Material Case Material Mechanical Life Release Force Operating Temperature Range
RS Stock No. 682-2821
Mfr. Part No.VX-01-1A2
BrandOmron
TWD142.00
Each
units
Pin Plunger Solder 100 mA @ 30 V dc SPDT-NO/NC IP40 0.25 N -25°C +80°C - Gold Alloy - 10000000Operations 0.03N -25 → +80°C
RS Stock No. 682-2660
Mfr. Part No.SS-5GL2
BrandOmron
TWD65.20
Each (In a Pack of 5)
units
Roller Lever Solder 5 A @ 125 V ac SPDT-NO/NC IP40 0.49 N -25°C +85°C - Silver - 30000000Operations 0.06N -25 → +85°C
RS Stock No. 682-1519
Mfr. Part No.D2F-F
BrandOmron
TWD56.00
Each (In a Pack of 5)
units
Pin Plunger PCB 1 A @ 125 V ac SPDT-NO/NC IP40 0.74 N -25°C +65°C - Silver Alloy - 1000000Operations 0.05N -25 → +65°C
RS Stock No. 616-0114
Mfr. Part No.D2F-L
BrandOmron
TWD40.00
Each (In a Pack of 5)
units
Hinge Lever PCB 3 A @ 125 V ac SPDT-NO/NC IP40 0.78 N -25°C +65°C - Silver Alloy - 1000000Operations 0.05N -25 → +65°C
RS Stock No. 686-6831
Mfr. Part No.SS-01GL2
BrandOmron
TWD133.00
Each
units
Roller Lever Solder 100 mA @ 30 V dc SPDT-NO/NC IP40 0.49 N -25°C +85°C - Gold Alloy - 30000000Operations 0.06N -25 → +85°C
RS Stock No. 616-0136
Mfr. Part No.D2F-01
BrandOmron
TWD28.20
Each (In a Pack of 5)
units
Pin Plunger PCB 100 mA @ 30 V dc SPDT-NO/NC IP40 1.47 N -25°C +65°C - Gold Alloy - 1000000Operations 0.2N -25 → +65°C
RS Stock No. 616-0473
Mfr. Part No.VX5-1A2
BrandOmron
TWD120.00
Each
units
Pin Plunger Solder 5 A @ 250 V ac SPDT-NO/NC IP40 0.25 N -25°C +80°C - Silver Alloy - 50000000Operations 0.03N -25 → +80°C
RS Stock No. 682-2724
Mfr. Part No.SSG-5L3P
BrandOmron
TWD81.00
Each
units
Simulated Roller Lever PCB 5 A @ 125 V ac SPDT-NO/NC IP40 0.6 N -25°C +125°C - Silver - 10000000Operations 0.06N -25 → +125°C
RS Stock No. 682-1493
Mfr. Part No.D2F-01F-T
BrandOmron
TWD40.00
Each (In a Pack of 5)
units
Pin Plunger PCB 100 mA @ 30 V dc SPDT-NO/NC IP40 0.74 N -25°C +65°C - Gold Alloy - 1000000Operations 0.05N -25 → +65°C
RS Stock No. 686-6837
Mfr. Part No.SS-01GL13
BrandOmron
TWD84.00
Each
units
Simulated Roller Lever Solder 100 mA @ 30 V dc SPDT-NO/NC IP40 0.49 N -25°C +85°C - Gold Alloy - 30000000Operations 0.06N -25 → +85°C
RS Stock No. 616-0237
Mfr. Part No.D3V-162-1C5
BrandOmron
TWD56.00
Each
units
Hinge Lever Tab 16 A @ 250 V ac SPDT-NO/NC IP40 - -25°C +105°C - Silver Alloy - 10000000Operations - -25 → +105°C
RS Stock No. 686-7622
Mfr. Part No.V1561A5
BrandOmron
TWD91.80
Each (In a Bag of 5)
units
Roller Lever Solder 15 A @ 250 V ac SPDT-NO/NC IP40 1.23 N -25°C +80°C - Silver Alloy - 50000000Operations 0.14N -25 → +80°C
RS Stock No. 682-0787
Mfr. Part No.SS-01D
BrandOmron
TWD62.00
Each
units
Pin Plunger PCB 100 mA @ 30 V dc SPDT-NO/NC IP40 1.47 N -25°C +85°C - Gold Alloy - 30000000Operations 0.25N -25 → +85°C
RS Stock No. 682-0866
Mfr. Part No.SS-5GL
BrandOmron
TWD52.20
Each (In a Pack of 5)
units
Hinge Lever Solder 5 A @ 125 V ac SPDT-NO/NC IP40 0.49 N -25°C +85°C - Silver - 30000000Operations 0.06N -25 → +85°C
RS Stock No. 807-3876
Mfr. Part No.EE-SB5
BrandOmron
TWD181.00
Each
units
- Solder 50 mA - - - -25°C +80°C - - - - - -25 → +80°C
RS Stock No. 616-0041
Mfr. Part No.SSG-5L1H
BrandOmron
TWD59.00
Each
units
Hinge Lever Solder 5 A @ 125 V ac SPDT-NO/NC IP40 0.6 N -25°C +125°C - Silver - 10000000Operations 0.06N -25 → +125°C
RS Stock No. 682-2503
Mfr. Part No.D3V-16-3C5
BrandOmron
TWD59.80
Each (In a Pack of 5)
units
Pin Plunger Tab 16 A @ 250 V ac SPST-NO IP40 - -25°C +105°C - Silver Alloy - 10000000Operations - -25 → +105°C
RS Stock No. 682-2578
Mfr. Part No.D3V-166-1A5
BrandOmron
TWD88.60
Each (In a Pack of 5)
units
Roller Lever Solder, Tab 16 A @ 250 V ac SPDT-NO/NC IP40 - -25°C +105°C - Silver Alloy - 10000000Operations - -25 → +105°C
RS Stock No. 682-2499
Mfr. Part No.D3V-16-3C4
BrandOmron
TWD41.40
Each (In a Pack of 5)
units
Pin Plunger Tab 16 A @ 250 V ac SPST-NO IP40 - -25°C +105°C - Silver Alloy - 10000000Operations - -25 → +105°C
RS Stock No. 682-0847
Mfr. Part No.SS-10GL2
BrandOmron
TWD101.00
Each
units
Roller Lever Solder 10.1 A @ 250 V ac SPDT-NO/NC IP40 0.49 N -25°C +85°C - Silver Alloy - 10000000Operations 0.06N -25 → +85°C