Tactile Switches

Image Part Number Description / PDF Quantity Rfq
KSL0V331 LFTR

KSL0V331 LFTR

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

1576

KSA0M211 LFTR

KSA0M211 LFTR

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

8187

KSL1M211LFT

KSL1M211LFT

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

38

SFS12RSSMTR LFS

SFS12RSSMTR LFS

C&K

SWITCH TACT SMT SEALED 360G

1398

PTS636 SL50 LFS

PTS636 SL50 LFS

C&K

TACT 6.0 X 3.5, 5.0 MM H, 130GF,

4812

ITS23FR2ST

ITS23FR2ST

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

253

KSL0V411LFTR

KSL0V411LFTR

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

19056

KSC931G LFS

KSC931G LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

23108

KSC141JLFS

KSC141JLFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

3217

KSL0V311 LFTR

KSL0V311 LFTR

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

2490

KSJ0M431LFT

KSJ0M431LFT

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

RS-282G05A3-SM RT

RS-282G05A3-SM RT

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

18343

KSS341GLFS

KSS341GLFS

C&K

SWITCH TACTILE SPST-NO 0.05A 50V

10343

EDGAC0LFS

EDGAC0LFS

C&K

SWITCH TACT SPST-NO 0.05A 100V

108

KSJ0M411 80SH LFTR

KSJ0M411 80SH LFTR

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

3996

KMR241NG LFS

KMR241NG LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

21242

PTS636 SP43 LFS

PTS636 SP43 LFS

C&K

TACT 6.0 X 3.5, 4.3 MM H, 320GF,

6172

KSC351GLFS

KSC351GLFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

3242

KSR254G LFG

KSR254G LFG

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

K8OG41GLFS

K8OG41GLFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

1437

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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