Tactile Switches

Image Part Number Description / PDF Quantity Rfq
PTS840 JMP SMTR LFS

PTS840 JMP SMTR LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSA0M511

KSA0M511

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSH421J 50 LFS

KSH421J 50 LFS

C&K

SWITCH TACTILE SPST-NO 50MA 12V

0

KSF0M212

KSF0M212

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSI0M410

KSI0M410

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSC221J

KSC221J

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSA0V511LFT

KSA0V511LFT

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

PTS645SM43SMTR

PTS645SM43SMTR

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSR253G

KSR253G

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

EDM 450 S SC0

EDM 450 S SC0

C&K

SWITCH TACT SPST-NO 0.05A 100V

0

KSI0V011

KSI0V011

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSA1M510

KSA1M510

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSF0M311

KSF0M311

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

PTS645VL39

PTS645VL39

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSA0V331LFT

KSA0V331LFT

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

KSC641J

KSC641J

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KT11P4SM

KT11P4SM

C&K

SWITCH TACTILE SPST-NO 1VA 50V

0

KSL1M410

KSL1M410

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSC411J 70 SH

KSC411J 70 SH

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSC243G

KSC243G

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

Tactile Switches

1. Overview

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.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
PCB Mount Tactile SwitchesLow profile, solderable terminals, short travel distanceRemote controls, mobile phones
Panel Mount Tactile SwitchesFront-panel installation, threaded bushingIndustrial control panels
Surface Mount Technology (SMT)Miniaturized, automated assembly compatibleWearable devices
Heavy Duty Tactile SwitchesHigh current rating, reinforced contactsMedical equipment

3. Structure and Components

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

4. Key Technical Specifications

ParameterTypical RangeImportance
Rated Current0.01-0.5ADetermines circuit compatibility
Operating Voltage5-250VDCSafety and insulation requirements
Actuation Force0.5-5.0NUser experience optimization
Electrical Life50,000-500,000 cyclesProduct longevity assessment
Contact Resistance10-100m Signal integrity maintenance

5. Application Fields

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

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
OmronB3F SeriesIP67 rating, 500,000 cycles life
C&K ComponentsPTS645 SeriesLow profile (3.2mm), RoHS compliant
E-SwitchTL1105 SeriesSurface mount, 0.1A rating
Alps AlpineSKQH SeriesClick-type feedback, 1.5N force

7. Selection Guidelines

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

8. Industry Trends

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

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