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:
1,412
Series
Operating Position
Operating Force
Overtravel
Pretravel
Release Force
Current Rating (Amps)
Actuator Type
Differential Travel
Operating Temperature
Mounting Type
Voltage Rating - DC
Termination Style
Circuit
Voltage Rating - AC
Features
Ingress Protection
Switch Function
Results remaining1,412
Applied Filters:
C&K, now part of Littelfuse
Select
ImageProduct DetailPriceAvailabilityECAD ModelFeaturesIngress ProtectionOperating TemperatureMounting TypeTermination StyleCircuitActuator TypeSwitch FunctionCurrent Rating (Amps)Voltage Rating - ACVoltage Rating - DCSeriesOperating ForceRelease ForcePretravelDifferential TravelOvertravelOperating Position
ZMA00A150L04RC
SWITCH SNAP ACT SPDT 100MA 125V
1+
$2.0282
5+
$1.9155
10+
$1.8028
Quantity
51,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
-
-40°C ~ 85°C
Through Hole, Right Angle
PC Pin
SPDT
Lever, Straight
On-Mom
100mA (AC/DC)
125 V
60 V
ZMA
50gf
8.000gf
0.120" (3.0mm)
-
0.025" (0.6mm)
0.312" (7.9mm)
SDS001R
SWITCH DETECT SPST-NO 100MA 12V
1+
$0.3549
5+
$0.3352
10+
$0.3155
Quantity
48,407 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
-
-40°C ~ 85°C
Surface Mount, Right Angle
SMD (SMT) Tab
SPST-NO
Overtravel Plunger
Off-Mom
100mA (DC)
-
12 V
SDS
75gf
-
-
-
0.079" (2.0mm)
-
HDT0001
SWITCH DETECTOR SPST-NO 1MA 5V
1+
$0.7606
5+
$0.7183
10+
$0.6761
Quantity
24,679 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
Board Guide
-
-40°C ~ 85°C
Surface Mount
SMD (SMT) Tab
SPST-NO
Angled Toggle (Detector)
Off-Mom
1mA (DC)
-
5 V
HDT
35gf
-
0.012" (0.3mm)
-
0.039" (1.0mm)
0.120" (3.05mm)
KSU213WLFG
SWITCH DETECTOR SPST-NO 10MA 50V
1+
$1.1408
5+
$1.0775
10+
$1.0141
Quantity
16,578 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
-
-40°C ~ 125°C
Surface Mount
Gull Wing
SPST-NO
Overtravel Plunger
Off-Mom
10mA (AC/DC)
50 V
50 V
KSU
71gf
-
-
-
-
-
HDT0004
SWITCH DETECTOR SPST-NO 1MA 5V
1+
$1.2676
5+
$1.1972
10+
$1.1268
Quantity
5,341 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
-
-40°C ~ 85°C
Surface Mount
SMD (SMT) Tab
SPST-NO
Angled Toggle (Detector)
Off-Mom
1mA (DC)
-
5 V
HDT
35gf
-
0.012" (0.3mm)
-
0.039" (1.0mm)
0.138" (3.5mm)
DS-080-C PA
SWITCH DETECTOR SPDT 100MA 30V
1+
$1.3335
5+
$1.2594
10+
$1.1854
Quantity
5,000 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
-
-20°C ~ 70°C
Through Hole
PC Pin
SPDT
Angled Toggle (Detector)
On-Mom
100mA (DC)
-
30 V
DS, COMAX
30gf
-
-
-
0.079" (2.0mm)
0.126" (3.2mm)
HDS001L
SWITCH DETECTOR SPST-NO 1MA 5V
1+
$2.5352
5+
$2.3944
10+
$2.2535
Quantity
4,487 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
-
-40°C ~ 80°C
Surface Mount, Right Angle
SMD (SMT) Tab
SPST-NO
Angled Toggle (Detector)
Off-Mom
1mA (DC)
-
5 V
HDS
30gf
-
0.007" (0.17mm)
-
0.020" (0.5mm)
0.059" (1.5mm)
SDS002R
SWITCH DETECT SPST-NC 100MA 12V
1+
$0.7606
5+
$0.7183
10+
$0.6761
Quantity
3,090 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
-
-40°C ~ 85°C
Surface Mount, Right Angle
SMD (SMT) Tab
SPST-NC
Overtravel Plunger
On-Mom
100mA (DC)
-
12 V
SDS
75gf
-
-
-
0.079" (2.0mm)
-
DS1D6AQ2
SWITCH SNAP ACTION SPDT 10A 125V
Contact us
Quantity
1 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
-
-40°C ~ 85°C
Panel Mount, Snap-In
Quick Connect - 0.187" (4.7mm)
SPDT
Round (Pin Plunger)
On-Mom
10A (AC)
125 V
-
DS
425gf
-
-
-
0.125" (3.2mm)
0.350" (8.9mm)
ZMSH03130P00PSC
SWITCH SNAP ACTION SPDT 3A 125V
Contact us
Quantity
1 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
IP65 - Dust Tight, Water Resistant
-40°C ~ 85°C
Through Hole
PC Pin
SPDT
Round (Pin Plunger)
On-Mom
3A (AC/DC)
125 V
12 V
ZMS
130gf
13gf
0.030" (0.8mm)
0.012" (0.3mm)
0.065" (1.7mm)
0.415" (10.55mm)
ZMCJM9L0R
SWITCH SNAP ACT SPDT 200MA 60V
Contact us
Quantity
1 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
-
-30°C ~ 85°C
Through Hole, Right Angle
PC Pin
SPDT
Lever, Leaf
On-Mom
200mA (DC)
-
60 V
ZM
50gf
-
-
-
-
0.330" (8.4mm)
ZMSH00130T10RRC
SWITCH SNAP ACT SPDT PC TH
Contact us
Quantity
1 Available
Can ship immediately
Ships from: HK
PCB Symbol, Footprint & 3D Model
-
IP65 - Dust Tight, Water Resistant
-40°C ~ 85°C
Through Hole, Right Angle
PC Pin
SPDT
Lever, Straight
On-Mom
100mA (DC)
-
12 V
ZMS
195gf
55gf
0.152" (3.85mm)
0.020" (0.5mm)
0.084" (2.14mm)
0.441" (11.2mm)
ZMSMH0130P00PLC
SWITCH SNAP ACT SPDT 100MA 12V
Contact us
Quantity
Contact us
PCB Symbol, Footprint & 3D Model
Support Posts
IP65 - Dust Tight, Water Resistant
-40°C ~ 85°C
Through Hole
PC Pin
SPDT
Round (Pin Plunger)
On-Mom
100mA (DC)
-
12 V
ZMSM
130gf
13gf
0.030" (0.8mm)
0.012" (0.3mm)
0.065" (1.7mm)
0.266" (6.75mm)
ZMSMH0130P00PMC
SWITCH SNAP ACT SPDT 100MA 12V
Contact us
Quantity
Contact us
PCB Symbol, Footprint & 3D Model
-
IP65 - Dust Tight, Water Resistant
-40°C ~ 85°C
Through Hole
PC Pin
SPDT
Round (Pin Plunger)
On-Mom
100mA (DC)
-
12 V
ZMSM
130gf
13gf
0.030" (0.8mm)
0.012" (0.3mm)
0.065" (1.7mm)
0.266" (6.75mm)
TFCFF5ST184AC
SWITCH SNAP ACTION SPDT 1A 125V
Contact us
Quantity
Contact us
PCB Symbol, Footprint & 3D Model
-
-
-40°C ~ 85°C
Chassis Mount
Quick Connect - 0.250" (6.3mm)
SPDT
Lever, Straight
On-Mom
1A (AC/DC)
125 V
30 V
TF
12gf
1.000gf
0.300" (7.6mm)
0.062" (1.6mm)
0.155" (3.9mm)
0.600" (15.2mm)
TFCCF5ST254AY
SWITCH SNAP ACT SPST-NO 1A 125V
Contact us
Quantity
Contact us
PCB Symbol, Footprint & 3D Model
-
-
-40°C ~ 85°C
Chassis Mount
Quick Connect - 0.250" (6.3mm)
SPST-NO
Lever, Straight
Off-Mom
1A (AC/DC)
125 V
30 V
TF
5.000gf
1.000gf
0.250" (6.35mm)
0.055" (1.4mm)
0.125" (3.2mm)
0.600" (15.2mm)
TFCCF5SA104AC
SWITCH SNAP ACTION SPDT 1A 125V
Contact us
Quantity
Contact us
PCB Symbol, Footprint & 3D Model
-
-
-40°C ~ 85°C
Chassis Mount
Quick Connect - 0.250" (6.3mm)
SPDT
Lever, Roller
On-Mom
1A (AC/DC)
125 V
30 V
TF
18gf
6.000gf
0.060" (1.5mm)
0.015" (0.38mm)
0.030" (0.76mm)
0.812" (20.6mm)
TFCGF5ST144AW
SWITCH SNAP ACT SPST-NC 1A 125V
Contact us
Quantity
Contact us
PCB Symbol, Footprint & 3D Model
-
-
-40°C ~ 85°C
Chassis Mount
Quick Connect - 0.250" (6.3mm)
SPST-NC
Lever, Simulated Roller
On-Mom
1A (AC/DC)
125 V
30 V
TF
50gf
5.000gf
0.100" (2.5mm)
0.030" (0.76mm)
0.060" (1.5mm)
0.730" (18.5mm)
TFCFF5ST155AC
SWITCH SNAP ACTION SPDT 1A 125V
Contact us
Quantity
Contact us
PCB Symbol, Footprint & 3D Model
-
-
-40°C ~ 85°C
Chassis Mount
Quick Connect - 0.250" (6.3mm)
SPDT
Lever, Straight
On-Mom
1A (AC/DC)
125 V
30 V
TF
30gf
4.000gf
0.110" (2.8mm)
0.030" (0.76mm)
0.065" (1.7mm)
0.600" (15.2mm)
ADPFC2W04AW
SWITCH SNAP ACT DPST-NC 15A 125V
Contact us
Quantity
Contact us
PCB Symbol, Footprint & 3D Model
-
-
-55°C ~ 85°C
Chassis Mount
Quick Connect - 0.250" (6.3mm)
DPST-NC
Lever, Roller
On-Mom
15A (AC)
125 V
-
A
624gf
57gf
0.281" (7.14mm)
-
0.062" (1.6mm)
0.718" (18.24mm)

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.