C&K, now part of Littelfuse

C&K, now part of Littelfuse

C&K is a leading global manufacturer of high-quality electromechanical switches and interface control systems. With over a century of experience, C&K offers a diverse range of products including tactile switches, toggle switches, pushbutton switches, rotary switches, and more. Their switches are designed to meet the demanding requirements of various industries such as automotive, aerospace, medical, and industrial automation. Known for their reliability, durability, and precision, C&K's switches ensure optimal performance and longevity. The company is committed to innovation and customer satisfaction, making them a trusted choice for customers worldwide seeking top-notch electromechanical switch solutions.

Limit Switches

Results:
1,424
Series
Operating Force
Release Force
Overtravel
Current Rating (Amps)
Pretravel
Differential Travel
Termination Style
Operating Position
Actuator Type
Voltage Rating - DC
Operating Temperature
Circuit
Mounting Type
Voltage Rating - AC
Switch Function
Ingress Protection
Features
Results remaining1,424
Applied Filters:
C&K, now part of Littelfuse
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ImageProduct DetailPriceAvailabilityECAD ModelMounting TypeFeaturesIngress ProtectionOperating TemperatureCircuitTermination StyleActuator TypeSwitch FunctionCurrent Rating (Amps)SeriesVoltage Rating - ACOperating ForceRelease ForcePretravelDifferential TravelOvertravelVoltage Rating - DC
TFCGV2SP005AY
SWITCH SNAP ACT SPST-NO 5A 277V
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Quantity
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PCB Symbol, Footprint & 3D Model
Chassis Mount
-
-
-40°C ~ 85°C
SPST-NO
Quick Connect - 0.250" (6.3mm)
Round (Pin Plunger)
Off-Mom
5A (AC)
TF
277 V
75gf
15gf
0.047" (1.2mm)
0.010" (0.25mm)
0.050" (1.27mm)
-
TFCGV2ST165AC
SWITCH SNAP ACTION SPDT 5A 277V
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Quantity
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PCB Symbol, Footprint & 3D Model
Chassis Mount
-
-
-40°C ~ 85°C
SPDT
Quick Connect - 0.250" (6.3mm)
Lever, Straight
On-Mom
5A (AC)
TF
277 V
22gf
2.000gf
0.250" (6.35mm)
0.045" (1.1mm)
0.125" (3.2mm)
-
TFCGV3SA105BC
SWITCH SNAP ACTION SPDT 11A 277V
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Quantity
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PCB Symbol, Footprint & 3D Model
Chassis Mount
-
-
-40°C ~ 85°C
SPDT
Quick Connect - 0.187" (4.7mm)
Lever, Roller
On-Mom
11A (AC), 500mA (DC)
TF
277 V
90gf
15gf
0.060" (1.5mm)
0.015" (0.38mm)
0.030" (0.76mm)
125 V
TFCGV3ST155AC
SWITCH SNAP ACTION SPDT 11A 277V
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Quantity
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PCB Symbol, Footprint & 3D Model
Chassis Mount
-
-
-40°C ~ 85°C
SPDT
Quick Connect - 0.250" (6.3mm)
Lever, Straight
On-Mom
11A (AC), 500mA (DC)
TF
277 V
40gf
5.000gf
0.110" (2.8mm)
0.030" (0.76mm)
0.065" (1.7mm)
125 V
TFECV3VT155AC
SWITCH SNAP ACTION SPDT 11A 277V
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Quantity
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PCB Symbol, Footprint & 3D Model
Chassis Mount
-
-
-40°C ~ 85°C
SPDT
Quick Connect - 0.250" (6.3mm)
Lever, Straight
On-Mom
11A (AC), 500mA (DC)
TF
277 V
125gf
18gf
0.110" (2.8mm)
0.030" (0.76mm)
0.065" (1.7mm)
125 V
TFECV4SA105AC
SWITCH SNAP ACTION SPDT 21A 277V
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Quantity
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PCB Symbol, Footprint & 3D Model
Chassis Mount
-
-
-40°C ~ 85°C
SPDT
Quick Connect - 0.250" (6.3mm)
Lever, Roller
On-Mom
21A (AC)
TF
277 V
225gf
56gf
0.060" (1.5mm)
0.015" (0.38mm)
0.030" (0.76mm)
-
TFECV4SA105AW
SWITCH SNAP ACT SPST-NC 21A 277V
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Quantity
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PCB Symbol, Footprint & 3D Model
Chassis Mount
-
-
-40°C ~ 85°C
SPST-NC
Quick Connect - 0.250" (6.3mm)
Lever, Roller
On-Mom
21A (AC)
TF
277 V
225gf
56gf
0.060" (1.5mm)
0.015" (0.38mm)
0.030" (0.76mm)
-
TFEEV4SA105AC
SWITCH SNAP ACTION SPDT 21A 277V
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Quantity
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PCB Symbol, Footprint & 3D Model
Chassis Mount
-
-
-40°C ~ 85°C
SPDT
Quick Connect - 0.250" (6.3mm)
Lever, Roller
On-Mom
21A (AC)
TF
277 V
400gf
110gf
0.060" (1.5mm)
0.015" (0.38mm)
0.030" (0.76mm)
-
TFEEV4VP005AC
SWITCH SNAP ACTION SPDT 21A 277V
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Quantity
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PCB Symbol, Footprint & 3D Model
Chassis Mount
-
-
-40°C ~ 85°C
SPDT
Quick Connect - 0.250" (6.3mm)
Round (Pin Plunger)
On-Mom
21A (AC)
TF
277 V
400gf
110gf
0.047" (1.2mm)
0.010" (0.25mm)
0.050" (1.27mm)
-
TFEEV4VT155AC
SWITCH SNAP ACTION SPDT 21A 277V
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Quantity
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PCB Symbol, Footprint & 3D Model
Chassis Mount
-
-
-40°C ~ 85°C
SPDT
Quick Connect - 0.250" (6.3mm)
Lever, Straight
On-Mom
21A (AC)
TF
277 V
225gf
80gf
0.110" (2.8mm)
0.030" (0.76mm)
0.065" (1.7mm)
-
TFCCV1SP005BC
SWITCH SNAP ACTION SPDT 1A 125V
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Quantity
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PCB Symbol, Footprint & 3D Model
Chassis Mount
-
-
-40°C ~ 85°C
SPDT
Quick Connect - 0.187" (4.7mm)
Round (Pin Plunger)
On-Mom
1A (AC/DC)
TF
125 V
15gf
6.000gf
0.047" (1.2mm)
0.010" (0.25mm)
0.050" (1.27mm)
30 V
ZMW00AP00JCAA
SWITCH SNAP ACT SPDT IP67 WIRE
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Quantity
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PCB Symbol, Footprint & 3D Model
Chassis Mount
-
IP67 - Dust Tight, Waterproof
-40°C ~ 85°C
SPDT
Wire Leads
Round (Pin Plunger)
On-Mom
100mA (DC)
ZMW
-
150gf
-
0.030" (0.8mm)
-
0.087" (2.2mm)
30 V
MMGGD1P0C
SWITCH SNAP ACTION SPDT 7A 250V
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Quantity
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PCB Symbol, Footprint & 3D Model
Chassis Mount
-
-
-55°C ~ 135°C
SPDT
Solder Turret
Round (Pin Plunger)
On-Mom
7A (AC)
MM
250 V
142gf
28gf
0.020" (0.5mm)
0.002" (0.05mm)
0.004" (0.1mm)
-
TMCJG6ST1540C
SWITCH SNAP ACTION SPDT 15A 125V
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Quantity
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PCB Symbol, Footprint & 3D Model
Chassis Mount
-
-
-55°C ~ 150°C
SPDT
Quick Connect - 0.187" (4.7mm)
Lever, Straight
On-Mom
15A (AC), 500mA (DC)
TM
125 V
80gf
20gf
0.161" (4.1mm)
0.032" (0.81mm)
0.075" (1.9mm)
125 V
DS1D6AQ3
SWITCH SNAP ACTION SPDT 10A 125V
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Quantity
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PCB Symbol, Footprint & 3D Model
Panel Mount, Snap-In
-
-
-40°C ~ 85°C
SPDT
Quick Connect - 0.250" (6.3mm)
Round (Pin Plunger)
On-Mom
10A (AC)
DS
125 V
425gf
-
-
-
0.125" (3.2mm)
-
TFCDK6ST2640C
SWITCH SNAP ACTION SPDT 11A 277V
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Quantity
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PCB Symbol, Footprint & 3D Model
Chassis Mount
-
-
-40°C ~ 85°C
SPDT
Quick Connect - 0.187" (4.7mm)
Lever, Straight
On-Mom
11A (AC), 500mA (DC)
TF
277 V
4.000gf
1.000gf
0.500" (12.7mm)
0.100" (2.54mm)
0.235" (6.0mm)
125 V
MMGGF5P0T
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Quantity
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PCB Symbol, Footprint & 3D Model
-
-
-
-
-
-
-
-
-
*
-
-
-
-
-
-
-
MMGGF5D0R
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Quantity
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PCB Symbol, Footprint & 3D Model
-
-
-
-
-
-
-
-
-
*
-
-
-
-
-
-
-
SDS001RULC
Linear IC's
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Quantity
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PCB Symbol, Footprint & 3D Model
Surface Mount, Right Angle
-
-
-40°C ~ 85°C
SPST-NC
SMD (SMT) Tab
Overtravel Plunger
On-Mom
100mA (DC)
SDS
-
75gf
50gf
0.020" (0.5mm)
-
0.060" (1.5mm)
12 V
SDS002RULC
Linear IC's
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Quantity
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PCB Symbol, Footprint & 3D Model
Surface Mount, Right Angle
-
-
-40°C ~ 85°C
SPST-NO
SMD (SMT) Tab
Overtravel Plunger
Off-Mom
100mA (DC)
SDS
-
75gf
50gf
0.020" (0.5mm)
-
0.060" (1.5mm)
12 V

About  Limit Switches

Snap action limit switches are mechanical devices that play a crucial role in making or breaking electrical connections. They achieve this by either closing or opening electrical contacts or solid-state circuitry when triggered by human or mechanical interaction. These switches are commonly used to detect and respond to specific positions within a mechanical system, typically at travel limit positions. When selecting a limit switch, consideration is given to the actuator type required for the particular application. Actuator options include an adjustable plunger or rod, toggle, arm lever, roller, cone, leaf, rotary actuator, spring, whisker, or cable. Each actuator type is designed to accommodate different mechanical setups and requirements. An adjustable plunger or rod actuator allows for fine-tuning the position at which the switch is triggered, providing flexibility in determining the limit point. A toggle actuator offers a simple on/off mechanism, while an arm lever actuator enables actuation through the movement of a lever arm. Switches with roller actuators utilize a rolling mechanism to detect and respond to specific positions, ensuring smooth operation. Other actuator types, such as cones, leaves, rotary actuators, springs, whiskers, or cables, offer further variations to suit specific application needs. The choice of actuator depends on factors such as the mechanical setup, space constraints, and desired sensitivity or force required to trigger the switch. Snap action limit switches are commonly employed in various industries and applications, including manufacturing, automation, and safety systems. They provide reliable and precise position detection, ensuring that electrical connections are made or broken at predetermined points in the mechanical system. This helps prevent damage, ensure proper functioning, and enhance safety. In summary, snap action limit switches are mechanical devices that facilitate the opening or closing of electrical contacts or solid-state circuitry when actuated by human or mechanical interaction. The selection of these switches depends on the desired actuator type, which can be adjusted to suit specific mechanical setups. Limit switches are crucial components that enable accurate position detection and play a key role in ensuring proper functioning and safety in various industries and applications.