Tactile Switches

Image Part Number Description / PDF Quantity Rfq
PTS850VM18PSMTR LFS

PTS850VM18PSMTR LFS

C&K

SWITCH TACT SIDE 180GF W/BOSS

3987

RS014R05B0PAGY

RS014R05B0PAGY

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KMT031OLLHS

KMT031OLLHS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KMT223NGHFLFG

KMT223NGHFLFG

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

RS283G05A4SMRT

RS283G05A4SMRT

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

RS222R05A1

RS222R05A1

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

PTS645SK43JSMTR92 LFS

PTS645SK43JSMTR92 LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

9870

KSA0V911 LFTR

KSA0V911 LFTR

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KMR431NG ULC LFS

KMR431NG ULC LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSF0A431 LFTR

KSF0A431 LFTR

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

RS014R05C3

RS014R05C3

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KMR242G ULC LFS

KMR242G ULC LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

PTS645TH95LFS

PTS645TH95LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSL0V531 LFTR

KSL0V531 LFTR

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

KSL0M332LFT

KSL0M332LFT

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

KSS333G LFG

KSS333G LFG

C&K

SWITCH TACTILE SPST-NO 0.01A 50V

0

RS282G05A1SM

RS282G05A1SM

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

RS022R05B1

RS022R05B1

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSC463GST1LFG

KSC463GST1LFG

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

PTS641SP31SMTR2LFS

PTS641SP31SMTR2LFS

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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