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 161-2385
製造零件編號TMCJG6VP0010Y
BrandC & K
HK$51.26
單位
Pin Plunger Solder 1/2 A @ 125 V dc, 15 A @ 125 / 250 V ac SPST-NO - 150 g -55°C 150°C - Brass - - - -55 → +150°C
RS庫存編號 868-1988
製造零件編號GPTCRS11
BrandZF
HK$106.28
單位
Hinge Roller Lever Screw 15 A SPDT IP40 3.5 oz -5 (VDE) °C, 0 (UL) °C +40 (VDE) °C, +55 (UL) °C - Silver Alloy Phenolic - 22.6796gf -5 → +40 (VDE) °C, 0 → +55 (UL) °C
RS庫存編號 517-804
製造零件編號DC2C-A1SC
BrandZF
HK$36.10
單位
Simulated Roller Lever Solder 10.1 A @ 250 V ac SPDT-NO/NC IP6K7 1.27 N -40°C +120°C - Silver Alloy - 1000000Operations - -40 → +120°C
RS庫存編號 765-0334
製造零件編號D2FD-01L30-1T
BrandOmron
HK$31.10
單位
Simulated Roller Lever Pc Pin 100 mA @ 30 V dc SPDT IP6X 0.65 N -20°C +70°C - Gold Alloy Rubber 300000Operations 0.05N -20 → +70°C
RS庫存編號 174-8206
製造零件編號D2LS-11
BrandOmron
HK$19,286.40
毎盒:2000 個
Box(es)
Button Surface Mount 1 mA SPST-NO IP40 1.2 N -25°C +85°C D2 Housing Silver - - 0.15N -25 → +85°C
RS庫存編號 868-1783
製造零件編號0E2000A0
BrandZF
HK$96.66
單位
Button Blade 20 A DPDT - 1280 g -40°C +150°C - Silver Cadmium Oxide General Purpose Phenolic - - -40 → +105°C
RS庫存編號 823-4973
製造零件編號01006.1801-01
BrandMarquardt
HK$40.00
單位
Lever Quick Connect 10 A @ 400 V ac SPDT - 1.5 → 2.5 N -40°C +100°C V0 Housing Ag Duroplast Type 182, PA Glass Fiber-Reinforced, PA Latamid - - -40 → +100°C
RS庫存編號 472-8134
製造零件編號XCG8-J1-Z1
HK$29.60
單位
Hinge Lever PCB 6 A @ 250 V ac NO/NC IP40 0.6 N -40°C +85°C - Silver Phenolic Melamine 5 x 10^7Operations 0.08N -40 → +85°C
RS庫存編號 699-4582
製造零件編號AVL324561
BrandPanasonic
HK$37.41
單位
Simulated Roller Lever Solder 100 mA @ 30 V dc SPDT IP40 0.54 N -25°C +85°C - Triple Clad Gold - 10^7Operations 0.034N -25 → +85°C
RS庫存編號 699-0319
製造零件編號ABV161051
BrandPanasonic
HK$100.10
單位
Pin Plunger Pre-wired 3 A @ 250 V ac SPDT IP67 1.96 N -40°C +85°C - Gold Clad Silver Nickel Alloy PPHS 5 x 10^6Operations 0.39N -40 → +85°C
RS庫存編號 173-8436
製造零件編號AVL3225
BrandPanasonic
HK$8.937
個 (以毎盒:100)
單位
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庫存編號 699-5342
製造零件編號AH16809A
BrandPanasonic
HK$12.07
單位
Pin Plunger Solder 1 A @ 30 V dc SPDT - 0.74 N -25°C +85°C - Silver Nickel Alloy - 10^6Operations 0.098N -25 → +85°C
RS庫存編號 175-9417
BrandRS PRO
HK$45.38
1 包 1 套
Pack(s)
- - - - - - - - - - - - - -
RS庫存編號 682-2792
製造零件編號V161A5
BrandOmron
HK$29.26
單位
Pin Plunger Solder 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 682-2257
製造零件編號D2SW-P2M
BrandOmron
HK$76.49
/個 (每包:5個)
單位
Pin Plunger Pre-wired 2 A @ 250 V ac SPDT-NO/NC IP67 1.79 N -20°C +70°C - Silver Alloy - 1000000Operations 0.2N -20 → +70°C
RS庫存編號 868-1733
製造零件編號0E1400M0
BrandZF
HK$58.17
單位
Button Blade 2 A @ 48 V dc, 25 A @ 125/250 V ac SPDT - 850 g -40°C +150°C - Silver Cadmium Oxide General Purpose Phenolic - - -40 → +105°C
RS庫存編號 883-1666
製造零件編號XGC6-88Z1
HK$52,317.53
1 包 2000 套
Pack(s)
Plunger Faston 12 A SP-CO IP40 0.8 N -40°C +150°C - Silver, Silver Nickel Melamine-Formaldehyd 5000000Cycles 0.1N -40 → +150°C
RS庫存編號 907-6738
製造零件編號1050.5702
BrandMarquardt
HK$42.74
單位
Roller Lever Solder 5 A SPDT IP40 (Actuator) ≤0.6 N -40°C +100°C - Silver PBTP 50000Operations - -40 → +100°C
RS庫存編號 616-0057
製造零件編號SSG-5L2T
BrandOmron
HK$20.19
單位
Roller Lever Tab 5 A @ 125 V ac SPDT-NO/NC IP40 0.6 N -25°C +125°C - Silver - 10000000Operations 0.06N -25 → +125°C
RS庫存編號 842-8857
製造零件編號BZ-3YWT82
BrandHoneywell
HK$337.82
單位
Roller Lever Solder 5 A SPDT - 1.25 N -55°C +85°C - Silver Phenolic 20000000Operations 0.21N -55 → +85°C