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 842-6560
製造零件編號BZ-2RD
BrandHoneywell
TWD919.40
/個 (每包:5個)
單位
Plunger Screw 15 A SP-CO - 2.5 → 3.61 N -55°C +85°C - Silver Phenolic 20000000Operations 1.11N -55 → +85°C
RS庫存編號 682-1550
製造零件編號D2F-L-T
BrandOmron
TWD54.60
/個 (每包:5個)
單位
Hinge Lever PCB 3 A @ 125 V ac SPDT-NO/NC IP40 0.78 N -25°C +65°C - Silver Alloy - 1000000Operations 0.05N -25 → +65°C
RS庫存編號 686-6991
製造零件編號VX-5-1A3
BrandOmron
TWD142.00
單位
Pin Plunger Solder 5 A @ 250 V ac SPDT-NO/NC IP40 0.49 N -25°C +80°C - Silver Alloy - 50000000Operations 0.05N -25 → +80°C
RS庫存編號 515-666
製造零件編號V15H16-CZ100A06
BrandHoneywell
TWD164.00
單位
Roller Lever - 16 A @ 250 V ac SPDT-NO/NC - - - - - - - - - -
RS庫存編號 173-8351
製造零件編號AVT3204
BrandPanasonic
TWD28.50
個 (以毎盒:100)
單位
Pin Plunger Solder 3 A @ 250 V ac SP-CO - 0.98 N -25°C +85°C - Silver Nickel Alloy - 5 x 10^5Operations 0.15N -25 → +85°C
RS庫存編號 173-9396
製造零件編號XCG8-J1-Z1
TWD121.10
個 (以毎袋:200)
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 863-7089
製造零件編號ZMA03A150L04PC
BrandC & K
TWD35.60
個 (以毎袋:5)
單位
Lever - 3 A SP-CO - - -40°C +85°C - Silver - - - -
RS庫存編號 842-6374
製造零件編號311SX1-T
BrandHoneywell
TWD834.00
單位
Straight Lever Solder 5 A SP-CO - 0.49 N -54°C +121°C - Gold Plated Silver Phenolic 10000000Operations 0.09N -54 → +121°C
RS庫存編號 472-8128
製造零件編號XCG8-Z1
TWD63.00
單位
Plunger PCB 6 A @ 250 V ac NO/NC IP40 1.7 N -40°C +85°C - Silver Phenolic Melamine 5 x 10^7Operations 0.3N -40 → +85°C
RS庫存編號 472-8184
製造零件編號XCF3-S1-Z1
TWD116.00
單位
Roller Lever Solder 10.1 A @ 250 V ac SPDT-NO/NC IP40 1.1 N -40°C +85°C - Fine Silver Thermosetting Formaldehyd Melamine 50000000Operations 0.17N -40 → +85°C
RS庫存編號 699-0574
製造零件編號AVT34223
BrandPanasonic
TWD53.00
單位
Hinge Lever PCB 3 A @ 250 V ac SPDT - 0.12 N -25°C +85°C - Silver Nickel Alloy - 5 x 10^5Operations 0.012N -25 → +85°C
RS庫存編號 682-2679
製造零件編號SS-5GL-F
BrandOmron
TWD82.00
/個 (每包:5個)
單位
Hinge Lever Solder 5 A @ 125 V ac SPDT-NO/NC IP40 0.16 N -25°C +85°C - Silver - 30000000Operations 0.02N -25 → +85°C
RS庫存編號 699-0460
製造零件編號AVT3204
BrandPanasonic
TWD46.00
單位
Pin Plunger Solder 3 A @ 250 V ac SPDT - 0.98 N -25°C +85°C - Silver Nickel Alloy - 5 x 10^5Operations 0.15N -25 → +85°C
RS庫存編號 173-8371
製造零件編號AVT34223
BrandPanasonic
TWD35.20
個 (以毎盒:100)
單位
Hinge Lever PCB 3 A @ 250 V ac SP-CO - 0.12 N -25°C +85°C - Silver Nickel Alloy - 5 x 10^5Operations 0.012N -25 → +85°C
RS庫存編號 682-0835
製造零件編號SS-10GL13
BrandOmron
TWD127.00
單位
Simulated Roller Lever Solder 10.1 A @ 250 V ac SPDT-NO/NC IP40 0.49 N -25°C +85°C - Silver Alloy - 10000000Operations 0.06N -25 → +85°C
RS庫存編號 820-7379
製造零件編號11SM1-T
BrandHoneywell
TWD419.00
單位
Pin Plunger Solder 5 A V dc @ 30 SP-CO - 0.83 → 1.39 N -54°C +121°C - Silver Phenolic 10000000Operations 0.28N -54 → +121°C
RS庫存編號 472-8285
製造零件編號V4NSY1UL
TWD262.00
單位
Short Lever Pre-wired 3 A @ 250 V ac SPDT-NO/NC IP67 0.9 N -40°C +85°C - Fine Silver Glass Fibre Reinforced Nylon 5000000Operations 0.07N -40 → +85°C
RS庫存編號 173-9386
製造零件編號XCG8-S1-Z1
TWD51.00
個 (以毎袋:200)
單位
Roller Lever PCB 6 A @ 250 V ac NO/NC IP40 0.7 N -40°C +85°C - Silver Phenolic Melamine 5 x 10^7Operations 0.09N -40 → +85°C
RS庫存編號 517-763
製造零件編號DB1C-A1LC
BrandZF
TWD76.00
單位
Lever Solder 6 A @ 250 V ac SPDT-NO/NC - 0.49 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS庫存編號 307-4004
製造零件編號83 170 408
BrandCrouzet
TWD103.00
單位
Plunger Solder 5 A @ 250 V ac NO/NC - 0.6 N -20°C +125°C - Silver Nickel PET 3 x 10^7Operations 0.1N -20 → +125°C