Tactile Switches

Image Part Number Description / PDF Quantity Rfq
PTS526 SKG15J SMTR2 LFS

PTS526 SKG15J SMTR2 LFS

C&K

TACT 5.2 X 5.2, 1.5 MM H, 260GF,

2508

KSL0M211 LFTR

KSL0M211 LFTR

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

PTS645SH50SMTR92 LFS

PTS645SH50SMTR92 LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

33680

KSC141GLFS

KSC141GLFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

875

KXT 111 LHS

KXT 111 LHS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

5791

PTS530 GH055 SMTR LFS

PTS530 GH055 SMTR LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

6018

KSC441J DCT 70SH LFS

KSC441J DCT 70SH LFS

C&K

TACT 6.2 X 6.2, 5.2 MM H, 4.75N,

23754

KSC541G ROHS

KSC541G ROHS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

14777

KSC SLT 241J LFS

KSC SLT 241J LFS

C&K

TACT 6.2 X 6.2, 5.0 MM H, 3.5N,

846

KSL0M511LFT

KSL0M511LFT

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

21

PTS645SK70SMTR92LFS

PTS645SK70SMTR92LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

PTS540JK035SMTRLFS

PTS540JK035SMTRLFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

PTS830GM140 SMTR LFS

PTS830GM140 SMTR LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

6082

KSC721J LFS

KSC721J LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

3872

KSS231GLFS

KSS231GLFS

C&K

SWITCH TACTILE SPST-NO 0.05A 50V

23315

KSA0A311 LFTR

KSA0A311 LFTR

C&K

SWITCH TACTILE SPST-NO

8592

KSC641JLFS

KSC641JLFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

2936

KSA1M331 LFTR

KSA1M331 LFTR

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

152

PTS635SH43LFS

PTS635SH43LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

628

KT11S1SA2M35LFG

KT11S1SA2M35LFG

C&K

SWITCH TACTILE SPST-NO 1VA 32V

2025

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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