Snap Action Switches

snap-action switch is a type of electrical switch that quickly changes states when actuated, typically from an open position to a closed position (or vice versa) with a rapid, distinct movement. This fast, decisive action is often achieved through the use of a spring-loaded mechanism or a mechanical latch, which causes the switch to “snap” into place once a certain pressure or force is applied. The snap-action feature ensures that the switch makes a reliable and consistent contact, minimizing wear and increasing the switch’s durability. Snap-action switches are commonly used in applications where precision and rapid response are needed, such as in safety systems, control panels, and machinery.

E-Switch snap action series provide multiple options including a unique SMT version of snap action switches, the TS2 series. Miniature and sub-miniature snap action switches are available.

Part Numbers

Image Series General Ratings Electrical Ratings Operating Force Travel Poles / Throws Terminal Options Mounting Options
LS Series Standard Snap Action Switches LS Electrical Life: 50,000 Cycles
Mechanical Life: 1,000,000 Cycles
Operating Temp: -25°C to 85°C
Contact Resistance: 100mΩ Max.
Silver cURus,
15A, 125/250VAC
Gold:
0.4VA, 20V (AC or DC
SPST N.O.
SPST N.C.
SPDT
25-250
(*Depending upon
actuator)
Pin Plunger
Lever
Roller
Simulated Roller
Quick Connect
Right Angle PCB Pin
Left Angle PCB Pin
Solder Lug
Width: 27.9mm
Height: 15.9mm
Depth: 10.3mm
MS Series Miniature Snap Action Switches MS Electrical Life: 50,000 Cycles
Mechanical Life: 1,000,000 Cycles
Operating Temp: -25°C to 85°C
Contact Resistance: 100mΩ Max.
Silver cURus:
5A, 125/250VAC
Gold:
0.4VA, 20V (AC or DC)
SPST N.O.
SPDT
10-295
(*Depending upon
actuator)
Pin Plunger
Lever
Roller
Simulated Roller
Custom
Quick Connect / PCB Pin
Right Angle PCB Pin
Left Angle PCB Pin
Solder Lug
Width: 19.8mm
Height: 10.6mm
Depth: 6.4mm
SS Series Sub-Miniature Snap Action Switches SS Electrical Life: 10,000 Cycles
Mechanical Life: 1,000,000 Cycles
Operating Temp: -25°C to 75°C
Contact Resistance: 100mΩ Max.
Silver cURus:
3A, 125VAC
1.5A, 250VAC
0.1A, 5VDC
Gold:
0.4VA, 20V (AC or DC)
SPDT 15-130
(*Depending upon
actuator)
Pin Plunger
Lever
Simulated Roller
PCB Pin
PCB Retention
Right Angle PCB Pin
Left Angle PCB Pin
Solder Lug
Width: 12.7mm
Height: 6.5mm
Depth: 5.75mm
S Series Sub-Miniature Snap Action Switches TS Electrical Life: 50,000 Cycles
Mechanical Life: 100,000 Cycles
Operating Temp: -25°C to 85°C
Contact Resistance: 300mΩ Max.
300mA, 6VDC SPDT 20 Lever Vertical PCB Pin
Right Angle PCB Pin Short
Left Angle PCB Pin Short
Right Angle PCB Pin Long
Left Angle PCB Pin Long
Width: 8.2mm
Height: 6.6mm
Depth: 2.7mm
TS2 Series Surface Mount Snap Action Switch TS2 Electrical Life: 3,000,000 Cycles
Mechanical Life: 3,000,000 Cycles
Operating Temp: -25°C to 85°C
Contact Resistance: 300mΩ Max.
100mA, 125VAC
100mA, 48VDC
SPST 70 Pin Plunger SMT Terminals Width: 8.6mm
Height: 3.0mm
Depth: 4.8mm
WS Series Sealed Snap Action Switch WS Electrical Life: 10,000 Cycles
Mechanical Life: 1,000,000 Cycles
Operating Temp: -25°C to 85°C
Contact Resistance: 100mΩ Max.
Ingress Protection: IP67
0.5A, 42VDC
1A, 24VDC
2A, 12VDC
3A, 125 /250VAC
SPDT 50-70
(*Depending upon
actuator)
Pin Plunger
Lever
Simulated Roller
PCB Pins
Soldering Lugs
Width: 13.3mm
Height: 7.0mm
Depth: 5.3mm
WS1 Series Sealed Snap Action Switch WS1 Electrical Life: 100,000 Cycles MIN.
Mechanical Life: 500,000 Cycles MIN
Operating Temp: -40°C to 85°C
Contact Resistance: 50mΩ Max.
Ingress Protection: IP67
01 = 0.1A @ 48VDC
0.1A @ 125VAC, 250VAC
3 = 3A @ 12VDC
3A @ 125VAC, 250VAC
SPDT 130 gf MAX. Pin Plunger Solder Lug
Wire Leads
Width: 14.7mm
Height: 6.3mm
Depth: 5.4mm
WS2 Series Sealed Snap Action Switch WS2 Electrical Life: 100,000 Cycles MIN.
Mechanical Life: 500,000 Cycles MIN
Operating Temp: -25°C to 85°C
Contact Resistance: 50mΩ Max.
Ingress Protection: IP67
2A @ 30VDC
2A @ 250VAC
SPDT 130 gf MAX. Pin Plunger Solder Lug
Quick Connect
PCB Pin
Width: 19.8mm
Height: 10mm
Depth: 6.3mm