Tactile Switches

Image Part Number Description / PDF Quantity Rfq
RS014R05A1

RS014R05A1

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

PTS641SK31SMTR2LFS

PTS641SK31SMTR2LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

RS032G05A1SMEM

RS032G05A1SMEM

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSF0M411 LFTR

KSF0M411 LFTR

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

RS187R05E2DSMTRT

RS187R05E2DSMTRT

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

RS187R05C1DSMTX8

RS187R05C1DSMTX8

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSC463GST2LFG

KSC463GST2LFG

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

RS014R05D3PA

RS014R05D3PA

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

RS022R05A3

RS022R05A3

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

RS282G05A3SM

RS282G05A3SM

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

PTS641SM31SMTR2LFS

PTS641SM31SMTR2LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

RS014R05A3SMA8.8X10

RS014R05A3SMA8.8X10

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

PTS645SM13SMTR92LFS

PTS645SM13SMTR92LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

720

KSC143JLFG

KSC143JLFG

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

KSA0A411 LFTR

KSA0A411 LFTR

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

RS014R05A3SMA10RT

RS014R05A3SMA10RT

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

RS181R05A3DSRT

RS181R05A3DSRT

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

RS222R05B1PA

RS222R05B1PA

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSA1A531 LFTR

KSA1A531 LFTR

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

KMR441G ULC LFS

KMR441G ULC LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 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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