Tactile Switches

Image Part Number Description / PDF Quantity Rfq
KSC441J70SHSPDELTALFS

KSC441J70SHSPDELTALFS

C&K

SWITCH TACTILE

0

PTS641SP34SMTR2LFS

PTS641SP34SMTR2LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

K5V1RG43T

K5V1RG43T

C&K

SWITCH TACTILE SPDT 0.1A 32V

0

PTS645TK95LFS

PTS645TK95LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

RS222R05B1

RS222R05B1

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSL0M931 LFTR

KSL0M931 LFTR

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

ILS TB180 40

ILS TB180 40

C&K

TOP ACTUATED ILLUMINATED TACT,18

970

ILS TB180 50

ILS TB180 50

C&K

TOP ACTUATED ILLUMINATED TACT,18

890

KSJ1M411 80SH LFTR

KSJ1M411 80SH LFTR

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

PTS840ESDPMSMTRLFS

PTS840ESDPMSMTRLFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSFI0A71270SHLFT

KSFI0A71270SHLFT

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KMR232NG LFS

KMR232NG LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

RS014R05C1PA

RS014R05C1PA

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KMR232NG ULC LFS

KMR232NG ULC LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

20865

RS022R05DH0

RS022R05DH0

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

RS022R05CH

RS022R05CH

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSA0V311

KSA0V311

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSL0M431LFT

KSL0M431LFT

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

KT11P2SA3M31

KT11P2SA3M31

C&K

SWITCH TACTILE SPST-NO 1VA 50V

0

ED S AC 1

ED S AC 1

C&K

SWITCH TACTILE SPST-NO 0.1A 100V

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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