| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
C&K |
SWITCH SNAP ACTION SPDT 1A 125V |
140 |
|
 |
C&K |
SWITCH DETECT SPST-NC 100MA 12V |
0 |
|
 |
C&K |
SWITCH SNAP ACT DPDT 100MA 125V |
1383 |
|
 |
C&K |
SWITCH SNAP ACTION DPDT 15A 125V |
283 |
|
 |
C&K |
SWITCH DETECTOR DPDT 20MA 18V |
335 |
|
 |
C&K |
SWITCH SNAP ACTION DPDT 10A 125V |
25 |
|
 |
C&K |
SWITCH SNAP ACTION SPDT 15A 125V |
0 |
|
 |
C&K |
SWITCH SNAP ACT SPDT 100MA 125V |
0 |
|
 |
C&K |
SWITCH SNAP ACTION SPDT 10A 125V |
43 |
|
 |
C&K |
SWITCH SNAP ACTION SPDT 5A 277V |
100 |
|
 |
C&K |
SWITCH SNAP ACTION SPDT 10A 125V |
0 |
|
 |
C&K |
SWITCH SNAP ACT SPST-NO 25A 125V |
1625 |
|
 |
C&K |
SWITCH SNAP ACTION SPDT 6A 125V |
72 |
|
 |
C&K |
SWITCH SNAP ACTION SPDT 15A 125V |
78 |
|
 |
C&K |
SWITCH DETECT SPST-NO 100MA 16V |
7023 |
|
 |
C&K |
SWITCH SNAP ACTION SPDT 15A 125V |
11 |
|
 |
C&K |
SWITCH SNAP ACT SPDT 200MA 60V |
0 |
|
 |
C&K |
SWITCH SNAP ACTION SPDT 5A 277V |
27 |
|
 |
C&K |
SWITCH SNAP ACTION DPDT 15A 125V |
659 |
|
 |
C&K |
SWITCH SNAP ACTION SPDT 5A 125V |
50 |
|
Snap-action switches and limit switches are critical electromechanical components that enable precise control of electrical circuits through mechanical motion. Snap-action switches feature a rapid-acting contact mechanism that ensures quick response to positional changes, while limit switches specifically detect the presence or absence of objects at predefined positions. These devices are fundamental in automation systems, safety circuits, and equipment interlocking, providing reliable feedback for process control and machine protection.
| Type | Functional Features | Application Examples |
|---|---|---|
| Standard Snap-Action Switch | Fast contact actuation, compact size, tactile feedback | Appliances, control panels |
| Heavy-Duty Limit Switch | Metal housing, high mechanical endurance | Industrial machinery, conveyor systems |
| Sealed Snap Switch | IP67-rated enclosure, resistant to dust/moisture | Outdoor equipment, washdown environments |
| Miniature Snap Switch | Sub-10mm dimensions, low operating force | Medical devices, IoT sensors |
Typical construction includes: - Actuator Mechanism: Lever, plunger, or roller assembly for motion detection - Contact System: Silver alloy contacts with snap-action spring for rapid switching - Housing: Thermoplastic (UL94 V-0) or metal enclosure with mounting features - Terminal Options: Quick-connect terminals, PCB pins, or screw terminals - Environmental Seals: Optional EPDM gaskets or molded-in sealing lips
| Parameter | Typical Range | Importance |
|---|---|---|
| Rated Current | 0.1-15A | Determines load capacity and contact lifespan |
| Operating Voltage | 12-600VAC/DC | Affects insulation requirements and arcing resistance |
| Mechanical Life | 10 -10 operations | Indicates durability under non-load conditions |
| Electrical Life | 10 -10 operations | Measures contact longevity under rated load |
| Actuation Force | 0.5-20N | Affects sensitivity and mechanical interface design |
| Response Time | 1-10ms | Critical for high-speed automation applications |
| Manufacturer | Product Series | Key Features |
|---|---|---|
| Omron | D4MC Series | IP67 rating, 10 mechanical operations |
| TE Connectivity | Micro Switch TL Series | UL-certified, 15A rating |
| ABB | PLS Series | Adjustable actuator, explosion-proof design |
| OMRON | Z-15 Series | 0.1A low-current switching capability |
Key considerations include: - Environmental conditions (temperature range, presence of contaminants) - Actuation force requirements vs. mechanical interface limitations - Contact configuration (SPDT/DPDT) and circuit requirements - Certification needs (UL, CSA, CE marks) - Mounting constraints (panel cutout dimensions) Example: For an automatic door system, specify a sealed IP65 switch with 10A/250VAC rating and lever actuator to ensure reliable operation in dusty environments.
Current development directions include: - Integration with IoT systems through embedded sensing and wireless communication - Miniaturization for wearable and portable device applications - Enhanced material science for extended lifespan in harsh environments - Development of hybrid switches combining snap-action with proximity sensing - Increased focus on RoHS-compliant and recyclable materials - Smart diagnostics capabilities with condition monitoring sensors