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 CAD Drawing Minimum Operating Temperature Maximum Operating Temperature Switch Housing Contact Material Case Material Mechanical Life Release Force
RS Stock No. 682-1493
Mfr. Part No.D2F-01F-T
BrandOmron
HK$10.668
Each (In a Pack of 5)
units
Pin Plunger PCB 100 mA @ 30 V dc SPDT-NO/NC IP40 0.74 N 3D CAD Model -25°C +65°C - Gold Alloy - 1000000Operations 0.05N
RS Stock No. 616-0136
Mfr. Part No.D2F-01
BrandOmron
HK$10.358
Each (In a Pack of 5)
units
Pin Plunger PCB 100 mA @ 30 V dc SPDT-NO/NC IP40 1.47 N 3D CAD Model -25°C +65°C - Gold Alloy - 1000000Operations 0.2N
RS Stock No. 682-1519
Mfr. Part No.D2F-F
BrandOmron
HK$10.28
Each (In a Pack of 5)
units
Pin Plunger PCB 1 A @ 125 V ac SPDT-NO/NC IP40 0.74 N 3D CAD Model -25°C +65°C - Silver Alloy - 1000000Operations 0.05N
RS Stock No. 682-2746
Mfr. Part No.V-152-1C25
BrandOmron
HK$33.82
Each
units
Hinge Lever Tab 15 A @ 250 V ac SPDT-NO/NC IP40 1.23 N 3D CAD Model -25°C +80°C - Silver Alloy - 50000000Operations 0.14N
RS Stock No. 807-3879
Mfr. Part No.D3V-16G-1C25-K
BrandOmron
HK$24.78
Each
units
Pin Plunger Quick Connect 16 A @ 250 V ac SPDT IP40 200 gf - -25°C +105°C D3V Housing Silver Alloy - 10000000Operations -
RS Stock No. 682-2421
Mfr. Part No.D3V-16-2C25
BrandOmron
HK$8.818
Each (In a Pack of 5)
units
Pin Plunger Tab 16 A @ 250 V ac SPST-NC IP40 - 3D CAD Model -25°C +105°C - Silver Alloy - 10000000Operations -
RS Stock No. 103-1667
Mfr. Part No.V-166-1C5(R)
BrandOmron
HK$35.54
Each
units
Long Roller Lever Tab 16 A @ 250 V ac SPDT IP40 1.96 N 3D CAD Model -25°C +80°C - Silver Alloy Thermoplastic 50000000Operations 0.14N
RS Stock No. 682-2499
Mfr. Part No.D3V-16-3C4
BrandOmron
HK$9.504
Each (In a Pack of 5)
units
Pin Plunger Tab 16 A @ 250 V ac SPST-NO IP40 - 3D CAD Model -25°C +105°C - Silver Alloy - 10000000Operations -
RS Stock No. 616-0215
Mfr. Part No.D3V-16-1C5
BrandOmron
HK$22.64
Each
units
Pin Plunger Tab 16 A @ 250 V ac SPDT-NO/NC IP40 1.96 N 3D CAD Model -25°C +105°C - Silver Alloy - 10000000Operations 0.49N
RS Stock No. 807-4226
Mfr. Part No.D2VW-5L2A-1HS
BrandOmron
HK$56.76
Each
units
Short Hinge Lever Tab 5 A @ 250 V ac SPDT IP67 2.25 N - -40°C +85°C - Silver Alloy - 10000000Operations 0.2N
RS Stock No. 682-0831
Mfr. Part No.SS-10
BrandOmron
HK$18.20
Each
units
Pin Plunger Solder 10.1 A @ 250 V ac SPDT-NO/NC IP40 1.47 N 3D CAD Model -25°C +85°C - Silver Alloy - 10000000Operations 0.25N
RS Stock No. 682-2503
Mfr. Part No.D3V-16-3C5
BrandOmron
HK$14.084
Each (In a Pack of 5)
units
Pin Plunger Tab 16 A @ 250 V ac SPST-NO IP40 - 3D CAD Model -25°C +105°C - Silver Alloy - 10000000Operations -
RS Stock No. 682-1503
Mfr. Part No.D2F-01-T
BrandOmron
HK$10.184
Each (In a Pack of 5)
units
Pin Plunger PCB 100 mA @ 30 V dc SPDT-NO/NC IP40 1.47 N 3D CAD Model -25°C +65°C - Gold Alloy - 1000000Operations 0.2N
RS Stock No. 682-0879
Mfr. Part No.V-16-3C5(R)
BrandOmron
HK$11.16
Each
units
Pin Plunger Tab 16 A @ 250 V ac SPST-NO IP40 1.96 N 3D CAD Model -25°C +80°C - Silver Alloy Thermoplastic 50000000Operations 0.49N
RS Stock No. 616-0091
Mfr. Part No.D2F
BrandOmron
HK$6.492
Each (In a Pack of 5)
units
Pin Plunger PCB 3 A @ 125 V ac SPDT-NO/NC IP40 1.47 N 3D CAD Model -25°C +65°C - Silver Alloy - 1000000Operations 0.2N
RS Stock No. 682-2786
Mfr. Part No.V-156-1C25
BrandOmron
HK$44.39
Each
units
Roller Lever Tab 15 A @ 250 V ac SPDT-NO/NC IP40 1.23 N 3D CAD Model -25°C +80°C - Silver Alloy - 50000000Operations 0.14N
RS Stock No. 616-0158
Mfr. Part No.D2F-01L
BrandOmron
HK$10.494
Each (In a Pack of 5)
units
Hinge Lever PCB 100 mA @ 30 V dc SPDT-NO/NC IP40 0.78 N 3D CAD Model -25°C +65°C - Gold Alloy - 1000000Operations 0.05N
RS Stock No. 807-4466
Mfr. Part No.D2VW-5L1-1MS
BrandOmron
HK$60.98
Each
units
Hinge Lever Wire Lead 3 A @ 125 V ac SPDT IP67 - - -40°C +85°C D2 Housing Silver Alloy - 10000000Operations -
RS Stock No. 682-1939
Mfr. Part No.D2HW-C232MR
BrandOmron
HK$43.56
Each
units
Simulated Roller Lever Pre-wired 2 A @ 12 V dc SPST-NC IP67 0.65 N 3D CAD Model -40°C +85°C - Gold Alloy - 1000000Operations 0.05N
RS Stock No. 686-7688
Mfr. Part No.D2F-01F-D
BrandOmron
HK$11.242
Each (In a Bag of 5)
units
Pin Plunger Solder 100 mA @ 30 V dc SPDT-NO/NC IP40 0.74 N 3D CAD Model -25°C +65°C - Gold Alloy - 1000000Operations 0.05N