Tactile Switches

Image Part Number Description / PDF Quantity Rfq
PTS645SK43TR LFS

PTS645SK43TR LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

PTS645SK50TR LFS

PTS645SK50TR LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSA1M210

KSA1M210

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSL0M410

KSL0M410

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KT11P4JM

KT11P4JM

C&K

SWITCH TACTILE SPST-NO 1VA 50V

0

PTS840 ESD JM SMTR LFS

PTS840 ESD JM SMTR LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSL0V210

KSL0V210

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

PTS635VH39 LFS

PTS635VH39 LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

PTS125SJM73

PTS125SJM73

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KT11P3SM

KT11P3SM

C&K

SWITCH TACTILE SPST-NO 1VA 50V

0

ED G SC 1

ED G SC 1

C&K

SWITCH TACT SPST-NO 0.05A 100V

0

PTS840 JM SMTR LFS

PTS840 JM SMTR LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSA0M211

KSA0M211

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KST241J

KST241J

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSI0V411 LFT

KSI0V411 LFT

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSA0V430

KSA0V430

C&K

SWITCH TACTILE SPST-NO 0.01A 50V

0

PTS645VL58

PTS645VL58

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSL0M311LFT

KSL0M311LFT

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSA1M411

KSA1M411

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

PTS635VH31

PTS635VH31

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

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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