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 typesThere 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.StandardsWe 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 Stock No. 290-0520
Mfr. Part No.DC2C-A1RC
BrandZF
TWD182.00
Each
units
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 Stock No. 842-6374
Mfr. Part No.311SX1-T
BrandHoneywell
TWD607.00
Each
units
Straight Lever Solder 5 A SPDT - 0.49 N -54°C +121°C - Gold Plated Silver Phenolic 10000000Operations 0.09N -54 → +121°C
RS Stock No. 616-0091
Mfr. Part No.D2F
BrandOmron
TWD51.80
Each (In a Pack of 5)
units
Pin Plunger PCB 3 A @ 125 V ac SPDT-NO/NC IP40 1.47 N -25°C +65°C - Silver Alloy - 1000000Operations 0.2N -25 → +65°C
RS Stock No. 699-5351
Mfr. Part No.AH1682A
BrandPanasonic
TWD61.00
Each
units
Hinge Lever Solder 1 A @ 30 V dc SPDT - 0.25 N -25°C +85°C - Silver Nickel Alloy - 10^6Operations 0.025N -25 → +85°C
RS Stock No. 842-6560
Mfr. Part No.BZ-2RD
BrandHoneywell
TWD728.80
Each (In a Pack of 5)
units
Plunger Screw 15 A SPDT - 2.5 → 3.61 N -55°C +85°C - Silver Phenolic 20000000Operations 1.11N -55 → +85°C
RS Stock No. 699-0574
Mfr. Part No.AVT34223
BrandPanasonic
TWD76.00
Each
units
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 Stock No. 863-7089
Mfr. Part No.ZMA03A150L04PC
BrandC & K
TWD30.80
Each (In a Bag of 5)
units
Lever - 3 A SPDT - - -40°C +85°C - Silver - - - -
RS Stock No. 884-2861
Mfr. Part No.XCG3W-81-J1
TWD287,947.00
1 Pack of 2000
Pack(s)
Roller Solder 6 A SP-CO IP40 0.6 N -40°C +85°C - Gold Melamine-Formaldehyd 50000000Cycles 0.08N -40 → +85°C
RS Stock No. 159-4427
Mfr. Part No.D459-V3LD
BrandZF
TWD63.00
Each (In a Pack of 5)
units
Short Lever Tab 16 A @ 250 V ac SPDT-NO/NC - 0.49 N -40°C +85°C - Silver Alloy - - - -40 +85°C
RS Stock No. 682-1550
Mfr. Part No.D2F-L-T
BrandOmron
TWD57.80
Each (In a Pack of 5)
units
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 Stock No. 517-725
Mfr. Part No.DB3C-B1RC
BrandZF
TWD111.00
Each
units
Roller Lever Tab 100 mA @ 30 V dc SPDT-NO/NC - 0.54 N -40°C +120°C - Gold; Silver Alloy - 15000000Operations - -40 → +120°C
RS Stock No. 682-2679
Mfr. Part No.SS-5GL-F
BrandOmron
TWD67.40
Each (In a Pack of 5)
units
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 Stock No. 321-8226
Mfr. Part No.83 160 703
BrandCrouzet
TWD313.00
Each
units
Plunger Tab 6 A @ 250 V ac SP-NC - 4 N -40°C +85°C - Nickel Silver Polyamide 10^7Operations 1.5N -40 → +85°C
RS Stock No. 804-6262
BrandRS PRO
TWD33.20
Each (In a Bag of 5)
units
Lever Solder 2 A @ 250 V ac SP - 50 gms -25°C +85°C - Silver Glass Filled Thermoplastic 500000 Operations @ 60 cpm 2.5gf -25 → +85°C
RS Stock No. 173-8351
Mfr. Part No.AVT3204
BrandPanasonic
TWD41.90
Each (In a Box of 100)
units
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 Stock No. 472-8184
Mfr. Part No.XCF3-S1-Z1
TWD65.00
Each
units
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 Stock No. 173-9396
Mfr. Part No.XCG8-J1-Z1
TWD46.50
Each (In a Bag of 200)
units
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 Stock No. 686-6991
Mfr. Part No.VX-5-1A3
BrandOmron
TWD122.00
Each
units
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 Stock No. 159-4590
Mfr. Part No.DB1C-A1LB
BrandZF
TWD83.00
Each
units
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 Stock No. 706-4159
Mfr. Part No.DH2C-B1PA
BrandZF
TWD131.00
Each
units
Lever Solder 500 mA @ 30 V dc SPDT-NO/NC - 0.49 N -25°C +70°C - Gold Plated Brass - - - -25 → +70°C