Tactile Switches

Image Part Number Description / PDF Quantity Rfq
K5V1YG43G

K5V1YG43G

C&K

SWITCH TACTILE SPDT 0.1A 32V

0

KSC141G

KSC141G

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

PTS645VH31

PTS645VH31

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KT11P3SA1M31

KT11P3SA1M31

C&K

SWITCH TACTILE SPST-NO 1VA 50V

0

PTS645SH50SM

PTS645SH50SM

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

PTS840 ESD JKP SMTR LFS

PTS840 ESD JKP SMTR LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSF1M211

KSF1M211

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KT11P4SA2M33

KT11P4SA2M33

C&K

SWITCH TACTILE SPST-NO 1VA 50V

0

PTS840 JK SMTR LFS

PTS840 JK SMTR LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KT11P3JM

KT11P3JM

C&K

SWITCH TACTILE SPST-NO 1VA 50V

0

KT11P4SA3M33

KT11P4SA3M33

C&K

SWITCH TACTILE SPST-NO 1VA 50V

0

KST221G

KST221G

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSA0V211

KSA0V211

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KST241G

KST241G

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSL0V211LFT

KSL0V211LFT

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

PTS125VJM73 LFS

PTS125VJM73 LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSC151G

KSC151G

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KT11B2CM

KT11B2CM

C&K

SWITCH TACTILE SPST-NO 1VA 50V

0

KSL1M311

KSL1M311

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSA1M311LFT

KSA1M311LFT

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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