Tactile Switches

Image Part Number Description / PDF Quantity Rfq
RS322R05B1

RS322R05B1

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

PTS845VH20PSMTR2LFS

PTS845VH20PSMTR2LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

834

RS014R05C0PA

RS014R05C0PA

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

RS032G05A0

RS032G05A0

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSL1M431 LFTR

KSL1M431 LFTR

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

KSF0M531 LFTR

KSF0M531 LFTR

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

PTS645SK95SMTR92LFS

PTS645SK95SMTR92LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

PTS645SK73JSMTR92 LFS

PTS645SK73JSMTR92 LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

6950

KSR553GLFG

KSR553GLFG

C&K

SWITCH TACTILE

0

PTS645VM15LFS

PTS645VM15LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSA1M431 LFTR

KSA1M431 LFTR

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

KSFI0V51170SHC0NNEX3.3LFT

KSFI0V51170SHC0NNEX3.3LFT

C&K

SWITCH TACTILE

0

KMR213G LFG

KMR213G LFG

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

ILS TC250 60

ILS TC250 60

C&K

TOP ACTUATED ILLUMINATED TACT,25

990

KSC422J 70SH LFS PF

KSC422J 70SH LFS PF

C&K

TACT 6.2 X 6.2, 5.1 MM H, 1.7N,

2133

RS188G05A1EMRT

RS188G05A1EMRT

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

PTS645TH70LFS

PTS645TH70LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSL0M911LFT

KSL0M911LFT

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSFI0V71170SHC0NNEX3.3LFT

KSFI0V71170SHC0NNEX3.3LFT

C&K

SWITCH TACTILE

0

KT11S1SA1M34LFS

KT11S1SA1M34LFS

C&K

SWITCH TACTILE SPST-NO 1VA 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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