Tactile Switches

Image Part Number Description / PDF Quantity Rfq
KSL0A411 LFTR

KSL0A411 LFTR

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

RS222R05BHPA

RS222R05BHPA

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KSA1A511 LFTR

KSA1A511 LFTR

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSA1M531 LFTR

KSA1M531 LFTR

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

PTS645TM95-2 LFS

PTS645TM95-2 LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

5098

KMT213NGHFLFG

KMT213NGHFLFG

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

KT11S1SA2M34LFS

KT11S1SA2M34LFS

C&K

SWITCH TACTILE SPST-NO 1VA 32V

0

ILS TA250 40

ILS TA250 40

C&K

TOP ACTUATED ILLUMINATED TACT,25

995

RS187R05D4DSMTRT2

RS187R05D4DSMTRT2

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

RS187R05B1DSMTRT

RS187R05B1DSMTRT

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

RS014R05C1

RS014R05C1

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KMR221GULCLFS

KMR221GULCLFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

0

KSR2D3MGLFG

KSR2D3MGLFG

C&K

SWITCH TACTILE

0

RS187N05A1DSRT

RS187N05A1DSRT

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

RS014R05B1SMA8.8RT

RS014R05B1SMA8.8RT

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KMR433NGLFG

KMR433NGLFG

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

KMT223GHFLFG

KMT223GHFLFG

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

ILS TA180 50

ILS TA180 50

C&K

TOP ACTUATED ILLUMINATED TACT,18

1141

KSC441J 70SH LFS PF

KSC441J 70SH LFS PF

C&K

TACT 6.2 X 6.2, 5.1 MM H, 4.0N,

11052

KSJ0V231 60SH LFTR

KSJ0V231 60SH LFTR

C&K

SWITCH TACTILE SPST-NO 0.01A 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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