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. 401-6712
Mfr. Part No.ESE22MH51
BrandPanasonic
$0.66
Each (In a Pack of 5)
units
Lever - 10 mA @ 5 V dc SPST-NO - - -10°C +70°C - - - - - -10 → +70°C
RS Stock No. 699-4598
Mfr. Part No.AVL34053
BrandPanasonic
$4.36
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
$2.407
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. 699-4743
Mfr. Part No.AVM34353
BrandPanasonic
$2.34
Each
units
Long Hinge Lever PCB 5 A @ 250 V ac SPDT - 0.44 N -25°C +85°C - Silver Nickel Alloy - 10^7Operations 0.029N -25 → +85°C
RS Stock No. 401-6756
Mfr. Part No.ESE11SV1
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. 173-8456
Mfr. Part No.AVM34353
BrandPanasonic
$2.643
Each (In a Box of 100)
units
Long Hinge Lever PCB 5 A @ 250 V ac SPDT - 0.44 N -25°C +85°C - Silver Nickel Alloy - 10^7Operations 0.029N -25 → +85°C
RS Stock No. 699-0268
Mfr. Part No.ABV121651
BrandPanasonic
$14.38
Each
units
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. 698-9463
Mfr. Part No.ABJ141260
BrandPanasonic
$6.82
Each
units
Hinge Lever Solder 2 A @ 30 V dc SPDT IP50 0.64 N -40°C +85°C - Silver Nickel Alloy - 10^6Operations 0.049N -40 → +85°C
RS Stock No. 173-8222
Mfr. Part No.ABJ141260
BrandPanasonic
$4.773
Each (In a Box of 100)
units
Hinge Lever Solder 2 A @ 30 V dc SPDT IP50 0.64 N -40°C +85°C - Silver Nickel Alloy - 10^6Operations 0.049N -40 → +85°C
RS Stock No. 173-8326
Mfr. Part No.ABV121651
BrandPanasonic
$11.877
Each (In a Box of 50)
units
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. 173-8417
Mfr. Part No.AV34443
BrandPanasonic
$2.328
Each (In a Box of 100)
units
Simulated Roller Lever PCB 3 A @ 250 V ac SPDT - 0.34 N -25°C +85°C - Silver Nickel Alloy - 5 x 10^5Operations 0.029N -25 → +85°C
RS Stock No. 173-8358
Mfr. Part No.AVT3224
BrandPanasonic
$2.328
Each (In a Box of 100)
units
Hinge Lever Solder 3 A @ 250 V ac SPDT - 0.34 N -25°C +85°C - Silver Nickel Alloy - 5 x 10^5Operations 0.029N -25 → +85°C
RS Stock No. 173-8330
Mfr. Part No.ABV1610403
BrandPanasonic
$12.59
Each (In a Box of 50)
units
Pin Plunger Pre-wired 3 A @ 250 V ac SPDT IP67 0.98 N -40°C +85°C - Silver Nickel Alloy PPHS 5 x 10^6Operations 0.25N -40 → +85°C
RS Stock No. 699-0347
Mfr. Part No.ABV161451
BrandPanasonic
$23.60
Each
units
Simulated Roller Lever Pre-wired 3 A @ 250 V ac SPDT IP67 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. 173-8296
Mfr. Part No.ASQ10320
BrandPanasonic
$14.557
Each (In a Box of 100)
units
Pin Plunger Pre-wired 100 mA @ 30 V dc SPST-NC IP67 1.5 N -40°C +85°C - Gold Plated - - - -40 → +85°C
RS Stock No. 699-4412
Mfr. Part No.AV34443
BrandPanasonic
$2.49
Each
units
Simulated Roller Lever PCB 3 A @ 250 V ac SPDT - 0.34 N -25°C +85°C - Silver Nickel Alloy - 5 x 10^5Operations 0.029N -25 → +85°C
RS Stock No. 699-0094
Mfr. Part No.ASQ10320
BrandPanasonic
$15.94
Each
units
Pin Plunger Pre-wired 100 mA @ 30 V dc SPST-NC IP67 1.5 N -40°C +85°C - Gold Plated - - - -40 → +85°C
RS Stock No. 699-5288
Mfr. Part No.AH1484A
BrandPanasonic
$2.19
Each
units
Simulated Roller Lever PCB 1 A @ 30 V dc SPDT IP40 0.26 N -25°C +85°C - Silver Nickel Alloy - 10^6Operations 0.02N -25 → +85°C
RS Stock No. 699-0495
Mfr. Part No.AVT3224
BrandPanasonic
$3.55
Each
units
Hinge Lever Solder 3 A @ 250 V ac SPDT - 0.34 N -25°C +85°C - Silver Nickel Alloy - 5 x 10^5Operations 0.029N -25 → +85°C
RS Stock No. 699-0306
Mfr. Part No.ABV1610403
BrandPanasonic
$9.08
Each
units
Pin Plunger Pre-wired 3 A @ 250 V ac SPDT IP67 0.98 N -40°C +85°C - Silver Nickel Alloy PPHS 5 x 10^6Operations 0.25N -40 → +85°C