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MTP SWITCH 1/2" |
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MTP SWITCH 1/2" |
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MTP 1/2" FORM 1 WS IP40 |
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MTP SWITCH 1/2" |
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SWITCH TACTILE DPST-NO 0.2A 50V |
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MTP SWITCH 1/2" |
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Tactile switches are momentary contact switches designed to provide tactile feedback when actuated. They are fundamental components in human-machine interfaces, enabling precise input registration through mechanical deformation. These switches play a critical role in modern electronics by ensuring reliable user interaction in devices ranging from consumer gadgets to industrial equipment.
| Type | Functional Characteristics | Application Examples |
|---|---|---|
| PCB Mount Tactile Switches | Low profile, solderable terminals, short travel distance | Remote controls, mobile phones |
| Panel Mount Tactile Switches | Front-panel installation, threaded bushing | Industrial control panels |
| Surface Mount Technology (SMT) | Miniaturized, automated assembly compatible | Wearable devices |
| Heavy Duty Tactile Switches | High current rating, reinforced contacts | Medical equipment |
Typical tactile switch construction includes: - Actuator: Dome-shaped plunger with textured surface - Contact System: Gold-plated phosphor bronze contacts - Housing: High-temperature resistant thermoplastic (e.g., LCP) - Spring Mechanism: Stainless steel leaf spring for tactile feedback - Terminals: Solder pins or surface-mount pads
| Parameter | Typical Range | Importance |
|---|---|---|
| Rated Current | 0.01-0.5A | Determines circuit compatibility |
| Operating Voltage | 5-250VDC | Safety and insulation requirements |
| Actuation Force | 0.5-5.0N | User experience optimization |
| Electrical Life | 50,000-500,000 cycles | Product longevity assessment |
| Contact Resistance | 10-100m | Signal integrity maintenance |
Primary industries include: - Consumer Electronics: Keyboards, gaming controllers - Industrial Automation: PLC control panels - Medical Devices: Patient monitoring systems - Automotive: Dashboard controls, steering wheel buttons - Telecommunications: Network equipment interfaces
Case Study: Apple Magic Keyboard uses SMT tactile switches with 0.8mm travel distance and 50cN actuation force for optimal typing experience
| Manufacturer | Representative Product | Key Features |
|---|---|---|
| Omron | B3F Series | IP67 rating, 500,000 cycles life |
| C&K Components | PTS645 Series | Low profile (3.2mm), RoHS compliant |
| E-Switch | TL1105 Series | Surface mount, 0.1A rating |
| Alps Alpine | SKQH Series | Click-type feedback, 1.5N force |
Key considerations: - Electrical requirements (current/voltage ratings) - Mechanical specifications (actuation force, travel distance) - Mounting method compatibility (through-hole vs SMT) - Environmental factors (temperature range, ingress protection) - Cost-volume optimization for mass production
Emerging developments include: - Miniaturization for wearable devices (sub-2mm packages) - Enhanced reliability for automotive applications (-40 C to 125 C operation) - Integration with haptic feedback systems - Adoption of eco-friendly materials (halogen-free plastics) - Smart switch development with embedded sensors