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庫存編號 472-8112
製造零件編號XCG5-S1-Z1
HK$33.10
單位
Roller Lever Tab 5 A @ 250 V ac - - 0.69 N - - - Gold; Silver - - 0.09N -
RS庫存編號 883-2054
製造零件編號XGG3-88Z1
HK$48,446.24
1 包 2000 套
Pack(s)
Plunger Solder 16 A SP-CO IP40 3.2 N -40°C +150°C - Silver, Silver Nickel Melamine-Formaldehyd 5000000Cycles 0.4N -40 → +150°C
RS庫存編號 682-2853
製造零件編號VX-016-1C23
BrandOmron
HK$37.57
單位
Roller Lever Tab 100 mA @ 30 V dc SPDT-NO/NC IP40 0.29 N -25°C +80°C - Gold Alloy - 10000000Operations 0.05N -25 → +80°C
RS庫存編號 394-7766
製造零件編號V-16-1C5(R)
BrandOmron
HK$20.08
單位
Plunger Tab 16 A @ 250 V ac SPDT-NO/NC IP40 1.96 N -25°C +80°C - Silver Alloy - 50000000Operations 0.49N -25 → +80°C
RS庫存編號 682-2544
製造零件編號D3V-165-1A5
BrandOmron
HK$23.41
/個 (每包:5個)
單位
Short Roller Lever Solder, Tab 16 A @ 250 V ac SPDT-NO/NC IP40 - -25°C +105°C - Silver Alloy - 10000000Operations - -25 → +105°C
RS庫存編號 686-6825
製造零件編號SS-01
BrandOmron
HK$23.39
單位
Pin Plunger Solder 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庫存編號 842-6343
製造零件編號311SM3-T
BrandHoneywell
HK$63.39
單位
Straight Lever Solder 5 A SPDT - 0.15 N -54°C +121°C - Gold Plated Silver Phenolic - 0.02N -54 → +121°C
RS庫存編號 319-4215
製造零件編號D2MQ-1
BrandOmron
HK$18.95
單位
Plunger Through Hole 500 mA @ 30 V dc SPDT-NO/NC IP40 1.18 N -15°C +70°C - Silver Plated - 30000Operations 0.19N -15 → +70°C
RS庫存編號 320-506
製造零件編號DC1C-C3AA
BrandZF
HK$53.45
單位
Button Through Hole 6 A @ 250 V ac SPDT-NO/NC IP6K7 1.96 N -40°C +105°C - Silver Alloy - 1000000Operations - -40 → +105°C
RS庫存編號 517-527
製造零件編號GPTCNH01
BrandZF
HK$96.26
單位
Plunger Screw 15 A @ 250 V ac SPDT-NO/NC - 3.42 N -20°C +85°C - Silver Alloy - 1000000Operations 1.11N -20 → +85°C
RS庫存編號 699-4471
製造零件編號AV4024
BrandPanasonic
HK$16.09
單位
Hinge Lever Solder 500 mA @ 30 V dc SPDT - 0.25 N -25°C +80°C - Silver Plated - 3 x 10^5Operations - -25 → +80°C
RS庫存編號 804-6259
BrandRS PRO
HK$35.78
單位
Long Roller Lever Quick Connect 16 A @ 250 V ac SPDT - 400 gms -55 (Environmental)°C +85°C V3 Housing Silver on Copper Glass Filled Thermoplastic 10000000Operations 25gf -55 → +85 (Environmental)°C
RS庫存編號 616-0518
製造零件編號D2SW-3H
BrandOmron
HK$25.06
單位
Pin Plunger Solder 3 A @ 30 V dc SPDT-NO/NC IP67 1.77 N -40°C +85°C - Silver - 5000000Operations 0.29N -40 → +85°C
RS庫存編號 682-2433
製造零件編號D3V-16-2C4
BrandOmron
HK$16.602
/個 (每包:5個)
單位
Pin Plunger Tab 16 A @ 250 V ac Single Pole Single Throw (SPST) IP40 - -25°C +105°C - Silver Alloy - 10000000Operations - -25 → +105°C
RS庫存編號 706-4304
製造零件編號DB1C-C1RB
BrandZF
HK$31.64
單位
Roller Lever Through Hole 6 A @ 250 V ac SPDT-NO/NC - 0.64 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS庫存編號 173-9120
製造零件編號AH1562619-A
BrandPanasonic
HK$12.939
毎管:50 個
單位
Hinge Lever PCB 100 mA @ 30 V dc SPDT-NO/NC - 0.49 N -25°C +85°C - Gold Clad Silver Nickel Alloy - 500000Operations 0.049N -25 → +85°C
RS庫存編號 173-9385
製造零件編號XCG5-S1-Z1
HK$17.702
個 (以毎袋:200)
單位
Roller Lever Tab 5 A @ 250 V ac - - 0.69 N - - - Gold; Silver - - 0.09N -
RS庫存編號 699-5294
製造零件編號AH1562619-A
BrandPanasonic
HK$21.83
單位
Hinge Lever PCB 100 mA @ 30 V dc SPDT-NO/NC - 0.49 N -25°C +85°C - Gold Clad Silver Nickel Alloy - 500000Operations 0.049N -25 → +85°C
RS庫存編號 472-8235
製造零件編號XGG2-88-J26Z1
HK$24.21
單位
Lever Tab 16 A @ 250 V ac SPDT-NO/NC IP40 0.91 N -40°C +85°C - Fine Silver; Silver Nickel Melamine Formaldehyd Thermosetting 50000000Operations - -40 → +85°C
RS庫存編號 842-1733
製造零件編號V7-1C17E9
BrandHoneywell
HK$22.41
單位
Pin Plunger Quick Connect 15 A SPDT - 1.47 N -40°C +85°C V7 Housing Silver/Gold Plated/Gold Alloy Thermoplastic 10000000Cycles 0.25N -40 → +85°C