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 682-1493
製造零件編號D2F-01F-T
BrandOmron
HK$11.388
/個 (每包:5個)
單位
Pin Plunger PCB 100 mA @ 30 V dc SPDT-NO/NC IP40 0.74 N -25°C +65°C - Gold Alloy - 1000000Operations 0.05N -25 → +65°C
RS庫存編號 157-1036
製造零件編號V4NS
HK$67.81
單位
Plunger Pre-wired 5 A @ 250 V ac SP-NO/NC IP67 2.5 N -10°C +85°C - Fine Silver Glass Fibre Reinforced Nylon 3 x 10^6Operations 0.3N -10 → +85°C
RS庫存編號 159-4590
製造零件編號DB1C-A1LB
BrandZF
HK$18.39
單位
Short Lever Solder 6 A @ 250 V ac SPDT-NO/NC IP50 0.59 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS庫存編號 699-5250
製造零件編號AH1480619-A
BrandPanasonic
HK$24.98
單位
Pin Plunger PCB 100 mA @ 30 V dc SPDT-NO/NC - 0.74 N -25°C +85°C - Gold Clad Silver Nickel Alloy - 1000000Operations 0.098N -25 → +85°C
RS庫存編號 173-8814
製造零件編號AH1480619-A
BrandPanasonic
HK$12.36
毎管:50 個
單位
Pin Plunger PCB 100 mA @ 30 V dc SPDT-NO/NC - 0.74 N -25°C +85°C - Gold Clad Silver Nickel Alloy - 1000000Operations 0.098N -25 → +85°C
RS庫存編號 616-0136
製造零件編號D2F-01
BrandOmron
HK$11.354
/個 (每包:5個)
單位
Pin Plunger PCB 100 mA @ 30 V dc SPDT-NO/NC IP40 1.47 N -25°C +65°C - Gold Alloy - 1000000Operations 0.2N -25 → +65°C
RS庫存編號 682-1519
製造零件編號D2F-F
BrandOmron
HK$12.848
/個 (每包:5個)
單位
Pin Plunger PCB 1 A @ 125 V ac SPDT-NO/NC IP40 0.74 N -25°C +65°C - Silver Alloy - 1000000Operations 0.05N -25 → +65°C
RS庫存編號 414-5646
製造零件編號4BR
HK$369.62
單位
Plunger Screw 15 A @ 250 V ac SP-NO/NC IP54 7.2 N -10°C +85°C - Silver Zinc Alloy 10^6Operations 1.7N -10 → +85°C
RS庫存編號 173-9367
製造零件編號01710
HK$388.654
個 (以毎袋:14)
單位
Plunger Screw 15 A @ 250 V ac SP-NO/NC IP54 7.2 N -10°C +85°C - Silver Zinc Alloy 10^6Operations 1.7N -10 → +85°C
RS庫存編號 318-014
製造零件編號V3SYR-UL
HK$153.48
單位
Short Roller Lever Pre-wired 5 A @ 250 V ac SP-NO/NC IP67 3.9 N -40°C +85°C - Silver Glass Fibre Reinforced Nylon 10^6Operations 0.4N -40 → +85°C
RS庫存編號 173-9302
製造零件編號V3SYR-UL
HK$156.623
個 (以毎袋:50)
單位
Short Roller Lever Pre-wired 5 A @ 250 V ac SP-NO/NC IP67 3.9 N -40°C +85°C - Silver Glass Fibre Reinforced Nylon 10^6Operations 0.4N -40 → +85°C
RS庫存編號 320-512
製造零件編號DC1C-C3LC
BrandZF
HK$63.78
單位
Lever Through Hole 6 A @ 250 V ac SPDT-NO/NC IP6K7 0.69 N -40°C +105°C - Silver Alloy - 1000000Operations - -40 → +105°C
RS庫存編號 868-1900
製造零件編號D443-R1RA-G2
BrandZF
HK$50.87
單位
Roller Lever Quick Connect 6 A @ 30 V dc, 10 A @ 125/250 V ac SPDT IP50 - -40°C +150°C - Silver Alloy Thermoplastic Polyester PET - - -40 → +150°C
RS庫存編號 157-1008
製造零件編號42394
HK$20.47
單位
Plunger Solder - SP-NO/NC IP40 1.4 N -40°C +85°C - Silver Glass Fibre Reinforced Nylon 5 x 10^6Operations 0.28N -40 → +85°C
RS庫存編號 682-2746
製造零件編號V-152-1C25
BrandOmron
HK$26.93
單位
Hinge Lever Tab 15 A @ 250 V ac SPDT-NO/NC IP40 1.23 N -25°C +80°C - Silver Alloy - 50000000Operations 0.14N -25 → +80°C
RS庫存編號 320-528
製造零件編號DC1C-C3RC
BrandZF
HK$59.43
單位
Roller Lever Through Hole 6 A @ 250 V ac SPDT-NO/NC IP6K7 0.78 N -40°C +105°C - Silver Alloy - 1000000Operations - -40 → +105°C
RS庫存編號 515-690
製造零件編號V15T16-EZ100A06
BrandHoneywell
HK$30.98
單位
Roller Lever Tab 16 A @ 250 V ac SPDT-NO/NC - 0.98 N -25°C +125°C - Silver Cadmium Oxide Polybutylene Terephthalate PET Thermoplastic 5000000Operations 0.25N -25 → +125°C
RS庫存編號 173-9390
製造零件編號V4NSUL
HK$47.418
個 (以毎袋:50)
單位
Plunger Pre-wired 3 A @ 250 V ac SPDT-NO/NC IP67 2.5 N -40°C +85°C - Fine Silver Glass Fibre Reinforced Nylon 5000000Operations 0.3N -40 → +85°C
RS庫存編號 173-9397
製造零件編號42394
HK$11.587
個 (以毎袋:200)
單位
Plunger Solder - SP-NO/NC IP40 1.4 N -40°C +85°C - Silver Glass Fibre Reinforced Nylon 5 x 10^6Operations 0.28N -40 → +85°C
RS庫存編號 159-4449
製造零件編號D459-V3RD
BrandZF
HK$12.044
/個 (每包:5個)
單位
Roller Lever Tab 16 A @ 250 V ac SPDT-NO/NC - 0.49 N -40°C +85°C - Silver Alloy - - - -40 → +85°C