Tactile Switches

Image Part Number Description / PDF Quantity Rfq
KSC341JLFS

KSC341JLFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

1327

KSL0M431 LFTR

KSL0M431 LFTR

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

RS-014R05B1-SMA10 RT

RS-014R05B1-SMA10 RT

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

10347

KSC221JLFS

KSC221JLFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

126

PTS 647 SN50 SMTR2 LFS

PTS 647 SN50 SMTR2 LFS

C&K

TACT 4.5 X 4.5, 5.0 MM H, 1.0N,

47903

EDM450AGSC0 LFS

EDM450AGSC0 LFS

C&K

SWITCH TACT SPST-NO 0.05A 100V

0

ITS50FV2SR

ITS50FV2SR

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSC441G 70SH LFS

KSC441G 70SH LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

10471

KMS233GLFG

KMS233GLFG

C&K

SWITCH TACTILE SPST-NO 0.01A 50V

0

KSC SLT 223G LFG

KSC SLT 223G LFG

C&K

TACT 6.2 X 6.2, 5.0 MM H, 2.4N,

999

PTS125SJM73-2LFS

PTS125SJM73-2LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KT11S2SA2M34LFS

KT11S2SA2M34LFS

C&K

SWITCH TACTILE SPST-NO 1VA 32V

11130

KSR214G LFG

KSR214G LFG

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

694

PTS810 SJS 250 SMTR LFS

PTS810 SJS 250 SMTR LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 16V

89

KMT021 NGJ LHS

KMT021 NGJ LHS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

PTS645SK50-2 LFS

PTS645SK50-2 LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

6618

KSC1001J LFS

KSC1001J LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

PTS840 ESD PK SMTR LFS

PTS840 ESD PK SMTR LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

ITS13FV2SR

ITS13FV2SR

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

334

PTS530 GM055 SMTR LFS

PTS530 GM055 SMTR LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

52350

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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