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 842-6346
製造零件編號311SM4-T
BrandHoneywell
TWD303.00
單位
Roller Lever Solder 5 A SP-CO - 0.39 N -54°C +121°C - Gold Plated Silver Phenolic - 0.07N -54 → +121°C
RS庫存編號 472-8257
製造零件編號XGG2-88-S20Z1
TWD278.00
單位
Roller Lever Tab 16 A @ 250 V ac SPDT-NO/NC IP40 3.2 N -40°C +85°C - Fine Silver; Silver Nickel Melamine Formaldehyd Thermosetting 50000000Operations 0.37N -40 → +85°C
RS庫存編號 290-0441
製造零件編號DB2C-A1RC
BrandZF
TWD103.00
單位
Roller Lever Solder 10.1 A @ 250 V ac SPDT-NO/NC - 0.93 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS庫存編號 682-2821
製造零件編號VX-01-1A2
BrandOmron
TWD197.00
單位
Pin Plunger Solder 100 mA @ 30 V dc SPDT-NO/NC IP40 0.25 N -25°C +80°C - Gold Alloy - 10000000Operations 0.03N -25 → +80°C
RS庫存編號 842-8709
製造零件編號BZ-2RQ784
BrandHoneywell
TWD1,751.00
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 698-9744
製造零件編號ABS141644
BrandPanasonic
TWD171.00
單位
Roller Lever Solder 100 mA @ 30 V dc SPDT IP50 0.39 N -40°C +85°C - Double Clad Gold - 5 x 10^6Operations 0.034N -40 → +85°C
RS庫存編號 682-2660
製造零件編號SS-5GL2
BrandOmron
TWD92.60
/個 (每包:5個)
單位
Roller Lever Solder 5 A @ 125 V ac SPDT-NO/NC IP40 0.49 N -25°C +85°C - Silver - 30000000Operations 0.06N -25 → +85°C
RS庫存編號 682-1519
製造零件編號D2F-F
BrandOmron
TWD72.00
/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 159-4657
製造零件編號DB1C-C1LD
BrandZF
TWD158.00
單位
Long Hinge Lever Through Hole 6 A @ 250 V ac SPDT-NO/NC - 0.18 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS庫存編號 842-8790
製造零件編號BZ-2RW8244-A2
BrandHoneywell
TWD631.00
單位
Straight Lever Screw 5 A SP-CO - 0.7 N -53°C +204°C - Silver Phenolic 20000000Operations 0.14N -53 → +204°C
RS庫存編號 472-8178
製造零件編號XCF3-J1-Z1
TWD158.00
單位
Hinge Lever Solder 10.1 A @ 250 V ac - - 1.04 N - - - Gold; Silver - - 0.16N -
RS庫存編號 173-9387
製造零件編號XCF3-J1-Z1
TWD75.00
個 (以毎袋:200)
單位
Hinge Lever Solder 10.1 A @ 250 V ac - - 1.04 N - - - Gold; Silver - - 0.16N -
RS庫存編號 682-2724
製造零件編號SSG-5L3P
BrandOmron
TWD85.00
單位
Simulated Roller Lever PCB 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 301-2270
製造零件編號F4T7Y1-UL
TWD190.00
單位
Hinge Lever Solder 5 A @ 250 V ac SP-NO/NC IP40 0.6 N -40°C +85°C - Silver Glass Fibre Reinforced Nylon 10^7Operations 0.07N -40 → +85°C
RS庫存編號 616-0136
製造零件編號D2F-01
BrandOmron
TWD47.00
/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 616-0114
製造零件編號D2F-L
BrandOmron
TWD77.00
/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 686-6831
製造零件編號SS-01GL2
BrandOmron
TWD146.00
單位
Roller Lever Solder 100 mA @ 30 V dc SPDT-NO/NC IP40 0.49 N -25°C +85°C - Gold Alloy - 30000000Operations 0.06N -25 → +85°C
RS庫存編號 517-820
製造零件編號DB3C-A1AA
BrandZF
TWD99.00
單位
Button Solder 100 mA @ 30 V dc SPDT-NO/NC - 1.47 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS庫存編號 616-0473
製造零件編號VX5-1A2
BrandOmron
TWD103.00
單位
Pin Plunger Solder 5 A @ 250 V ac SPDT-NO/NC IP40 0.25 N -25°C +80°C - Silver Alloy - 50000000Operations 0.03N -25 → +80°C
RS庫存編號 543-5502
製造零件編號DG13-B1RA
BrandZF
TWD108.80
/個 (每包:5個)
單位
Roller Lever PCB 3 A @ 125 V ac SPDT-NO/NC - 0.59 N -25°C +85°C - Silver Alloy - 1000000Operations - -25 → +85°C