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. 699-0088
Mfr. Part No.ASQ10230
BrandPanasonic
£8.72
Each
Units
Pin Plunger Pre-wired 100 mA @ 30 V dc SPST-NO IP67 1.5 N -40°C +85°C - Gold Plated - - - -40 → +85°C
RS Stock No. 173-8293
Mfr. Part No.ASQ10230
BrandPanasonic
£6.343
Each (In a Box of 100)
Units
Pin Plunger Pre-wired 100 mA @ 30 V dc SPST-NO IP67 1.5 N -40°C +85°C - Gold Plated - - - -40 → +85°C
RS Stock No. 173-8310
Mfr. Part No.ASQ14418
BrandPanasonic
£1.116
Each (In a Box of 100)
Units
Simulated Roller Lever Solder 100 mA @ 30 V dc SPDT-NO/NC IP67 1.5 N -40°C +85°C - Gold Plated - - - -40 → +85°C
RS Stock No. 699-0170
Mfr. Part No.ASQ14418
BrandPanasonic
£1.23
Each
Units
Simulated Roller Lever Solder 100 mA @ 30 V dc SPDT-NO/NC IP67 1.5 N -40°C +85°C - Gold Plated - - - -40 → +85°C
RS Stock No. 173-8317
Mfr. Part No.ABV1210503
BrandPanasonic
£2.396
Each (In a Box of 50)
Units
Pin Plunger Tab 5 A @ 250 V ac SPDT IP50 1.96 N -40°C +85°C - Silver Nickel Alloy PPHS 5 x 10^6Operations 0.39N -40 → +85°C
RS Stock No. 699-0211
Mfr. Part No.ABV1210503
BrandPanasonic
£3.28
Each
Units
Pin Plunger Tab 5 A @ 250 V ac SPDT IP50 1.96 N -40°C +85°C - Silver Nickel Alloy PPHS 5 x 10^6Operations 0.39N -40 → +85°C
RS Stock No. 699-4673
Mfr. Part No.AVM31253
BrandPanasonic
£0.91
Each
Units
Hinge Lever Solder 5 A @ 250 V ac SPDT - 0.54 N -25°C +85°C - Silver Nickel Alloy - 10^7Operations 0.034N -25 → +85°C
RS Stock No. 173-8452
Mfr. Part No.AVM31253
BrandPanasonic
£0.829
Each (In a Box of 100)
Units
Hinge Lever Solder 5 A @ 250 V ac SPDT - 0.54 N -25°C +85°C - Silver Nickel Alloy - 10^7Operations 0.034N -25 → +85°C
RS Stock No. 699-4598
Mfr. Part No.AVL34053
BrandPanasonic
£2.93
Each
Units
Pin Plunger PCB 5 A @ 250 V ac SPDT - 1.47 N -25°C +85°C - Silver Nickel Alloy - 10^7Operations 0.2N -25 → +85°C
RS Stock No. 173-8443
Mfr. Part No.AVL34053
BrandPanasonic
£1.049
Each (In a Box of 100)
Units
Pin Plunger PCB 5 A @ 250 V ac SPDT - 1.47 N -25°C +85°C - Silver Nickel Alloy - 10^7Operations 0.2N -25 → +85°C
RS Stock No. 103-7154
Mfr. Part No.AV444461J
BrandPanasonic
£4.34
Each
Units
Roller Lever Through Hole 100 mA @ 30 V dc SPDT - 0.29 N -25°C +80°C - Gold Plated - 3 x 10^5Operations - -25 → +80°C
RS Stock No. 173-8457
Mfr. Part No.AVM3435613
BrandPanasonic
£1.324
Each (In a Box of 100)
Units
Long Hinge Lever PCB 100 mA @ 30 V dc SPDT - 0.44 N -25°C +85°C - Triple Clad Gold - 10^7Operations 0.029N -25 → +85°C
RS Stock No. 699-4746
Mfr. Part No.AVM3435613
BrandPanasonic
£3.27
Each
Units
Long Hinge Lever PCB 100 mA @ 30 V dc SPDT - 0.44 N -25°C +85°C - Triple Clad Gold - 10^7Operations 0.029N -25 → +85°C
RS Stock No. 173-8297
Mfr. Part No.ASQ10338
BrandPanasonic
£4.74
Each (In a Box of 100)
Units
Simulated Roller Lever Pre-wired 100 mA @ 30 V dc SPST-NO IP67 1.5 N -40°C +85°C - Gold Plated - - - -40 → +85°C
RS Stock No. 699-0101
Mfr. Part No.ASQ10338
BrandPanasonic
£5.22
Each
Units
Simulated Roller Lever Pre-wired 100 mA @ 30 V dc SPST-NO IP67 1.5 N -40°C +85°C - Gold Plated - - - -40 → +85°C
RS Stock No. 173-8322
Mfr. Part No.ABV1214513
BrandPanasonic
£4.261
Each (In a Box of 50)
Units
Simulated Roller Lever Tab 3 A @ 250 V ac SPDT IP50 1.18 N -40°C +85°C - Gold Clad Silver Nickel Alloy PPHS 5 x 10^6Operations 0.13N -40 → +85°C
RS Stock No. 699-0237
Mfr. Part No.ABV1214513
BrandPanasonic
£6.53
Each
Units
Simulated Roller Lever Tab 3 A @ 250 V ac SPDT IP50 1.18 N -40°C +85°C - Gold Clad Silver Nickel Alloy PPHS 5 x 10^6Operations 0.13N -40 → +85°C
RS Stock No. 401-6936
Mfr. Part No.ESE11HS1
BrandPanasonic
£0.704
Each (In a Pack of 5)
Units
Plunger - 10 mA @ 5 V dc SPST-NO - - -10°C +70°C - - - - - -10 → +70°C
RS Stock No. 698-9707
Mfr. Part No.ABS141151
BrandPanasonic
£4.22
Each
Units
Short Hinge Lever Solder 100 mA @ 30 V dc SPDT IP50 0.59 N -40°C +85°C - Triple Clad Gold - 5 x 10^6Operations 0.039N -40 → +85°C
RS Stock No. 173-8253
Mfr. Part No.ABS141151
BrandPanasonic
£2.163
Each (In a Box of 100)
Units
Short Hinge Lever Solder 100 mA @ 30 V dc SPDT IP50 0.59 N -40°C +85°C - Triple Clad Gold - 5 x 10^6Operations 0.039N -40 → +85°C