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. 161-2416
Mfr. Part No.ZMSH03130T11RSC
BrandC & K
PHP166.00
Each
units
Simulated Roller Lever Through Hole 3 A @ 12 V dc, 3 A @ 125 V ac SPDT IP67 130 g -40°C 85°C - Brass Polyamide - - -40 → +85°C
RS Stock No. 700-5728
Mfr. Part No.83240000
BrandCrouzet
PHP2,126.26
Each
units
Plunger Tab 6 A @ 250 V ac DT-NO/NC IP40 4.5 N -50°C +85°C - Silver Nickel Glass Fibre Reinforced PC 10^7Operations - -50 → +85°C
RS Stock No. 682-2086
Mfr. Part No.D2SW-01L3H
BrandOmron
PHP222.08
Each
units
Simulated Roller Lever Solder 100 mA @ 30 V dc SPDT-NO/NC IP67 0.59 N -40°C +85°C - Gold Alloy - 5000000Operations 0.06N -40 → +85°C
RS Stock No. 517-747
Mfr. Part No.DB1C-A1SB
BrandZF
PHP129.50
Each
units
Simulated Roller Lever Solder 6 A @ 250 V ac SPDT-NO/NC - 0.64 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS Stock No. 907-4615
Mfr. Part No.1040.0301
BrandMarquardt
PHP571.68
Each
units
- Quick Connect 4 A SPDT IP00 (Terminal), IP40 (Actuator) - -35°C +85°C - Gold PA Glass Fiber-Reinforced, PETP 50000Operations - -35 → +85°C
RS Stock No. 682-0800
Mfr. Part No.SS-01GL13-FD
BrandOmron
PHP153.30
Each
units
Simulated Roller Lever PCB 100 mA @ 30 V dc SPDT-NO/NC IP40 0.16 N -25°C +85°C - Gold Alloy - 30000000Operations 0.02N -25 → +85°C
RS Stock No. 173-8269
Mfr. Part No.ABS161250
BrandPanasonic
PHP347.78
Each (In a Box of 50)
units
Hinge Lever Pre-wired 2 A @ 30 V dc SPDT IP67 0.54 N -40°C +85°C - Silver Nickel Alloy - 5 x 10^6Operations 0.034N -40 → +85°C
RS Stock No. 699-4481
Mfr. Part No.AV4404
BrandPanasonic
PHP87.68
Each
units
Pin Plunger PCB 500 mA @ 30 V dc SPDT - 0.98 N -25°C +80°C - Silver Plated - 3 x 10^5Operations - -25 → +80°C
RS Stock No. 517-892
Mfr. Part No.DB1C-A1SD
BrandZF
PHP94.75
Each
units
Long Roller Lever Solder 6 A @ 250 V ac SPDT-NO/NC - 0.2 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS Stock No. 157-8363
Mfr. Part No.ED57386
BrandERG
PHP384,800.00
1 Box of 1000
Box(es)
Slide Pc Pin 5 A SPDT - - -55°C +100°C - - - - - -55 → +100°C
RS Stock No. 517-810
Mfr. Part No.GPTBRM01
BrandZF
PHP691.16
Each
units
Short Roller Lever Screw 20 A @ 250 V ac SPDT-NO/NC - 1.78 N -20°C +85°C - Silver Alloy - 1000000Operations 0.42N -20 → +85°C
RS Stock No. 173-8248
Mfr. Part No.ABS111651
BrandPanasonic
PHP231.51
Each (In a Box of 100)
units
Roller Lever Tab 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. 682-2250
Mfr. Part No.D2SW-P2L3D
BrandOmron
PHP94.88
Each (In a Pack of 5)
units
Simulated Roller Lever PCB 2 A @ 250 V ac SPDT-NO/NC IP67 0.6 N -20°C +70°C - Silver Alloy - 1000000Operations 0.05N -20 → +70°C
RS Stock No. 173-9321
Mfr. Part No.42681
PHP158.56
Each (In a Bag of 50)
units
Roller Lever Tab 10 A @ 250 V ac SPST-NC IP40 5 N -40°C +85°C - Silver (Stationary); Silver Nickel (Movable) Glass Fibre Reinforced Nylon 10^6Operations 5.5N -40 → +85°C
RS Stock No. 699-0104
Mfr. Part No.ASQ10410
BrandPanasonic
PHP144.70
Each
units
Pin Plunger Solder 100 mA @ 30 V dc SPDT IP67 1.5 N -40°C +85°C - Gold Plated - - - -40 → +85°C
RS Stock No. 706-4297
Mfr. Part No.DB1C-B1LB
BrandZF
PHP128.10
Each
units
Short Lever Tab 6 A @ 250 V ac SPDT-NO/NC - 0.59 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS Stock No. 682-2503
Mfr. Part No.D3V-16-3C5
BrandOmron
PHP67.462
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. 907-0102
Mfr. Part No.1065.3653
BrandMarquardt
PHP84.314
Each (In a Pack of 10)
units
Standard Left Angle PCB 100 mA SPDT IP00 ≤1.6 N -40°C +85°C - Gold Cobalt PBTP 200000Operations - -40 → +85°C
RS Stock No. 173-9105
Mfr. Part No.AH18829-A
BrandPanasonic
PHP77.615
Each (In a Tube of 50)
units
Hinge Lever Left Angle PCB 1 A @ 30 V dc SPDT-NO/NC - 0.25 N -25°C +85°C - Silver Nickel Alloy - 1000000Operations 0.025N -25 → +85°C
RS Stock No. 173-9132
Mfr. Part No.AH1484A
BrandPanasonic
PHP73.06
Each (In a Tube of 50)
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
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