Tactile Switches

Image Part Number Description / PDF Quantity Rfq
KT11P4SA2M34LFS

KT11P4SA2M34LFS

C&K

SWITCH TACTILE SPST-NO 1VA 32V

38

KSC SLT 221G LFS

KSC SLT 221G LFS

C&K

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

888

KMR233GLFG

KMR233GLFG

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

0

PTS635SH43SMTRLFS

PTS635SH43SMTRLFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

10103

PTS845VK20PSMTR4 LFS

PTS845VK20PSMTR4 LFS

C&K

SWITCH TACT SIDE 260GF

3965

KSL0M212LFT

KSL0M212LFT

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

5162

KSC441J 70SH LFS

KSC441J 70SH LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

246

KSC441J 70SH LFS OF

KSC441J 70SH LFS OF

C&K

TOP ACTUATED TACT, 4.0N, SMT, 6

60

KSC422G 70SH LFS PF

KSC422G 70SH LFS PF

C&K

TACT 6.2 X 6.2, 5.1 MM H, 1.7N,

603

KSR223GLFG

KSR223GLFG

C&K

SWITCH TACTILE SPST-NO 0.01A 32V

10035

ATS2D3G NC LFG

ATS2D3G NC LFG

C&K

SWITCH TACTILE SPST-NC 10MA 32V

13944

ILS TB180 10

ILS TB180 10

C&K

TOP ACTUATED ILLUMINATED TACT,18

940

KSC SLT 221J LFS

KSC SLT 221J LFS

C&K

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

741

PTS636 SMG25 SMTR LFS

PTS636 SMG25 SMTR LFS

C&K

TACT 6.0 X 3.5, 2.5 MM H, 180GF,

11158

KMR221GLFS

KMR221GLFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

44591

KSC121GLFS

KSC121GLFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

5037

PTS525SM15SMTR2 LFS

PTS525SM15SMTR2 LFS

C&K

SWITCH TACTILE SPST-NO 0.02A 15V

109638

KSC441G ST1 LFS

KSC441G ST1 LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

13353

PTS645TK50LFS

PTS645TK50LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 12V

0

KMR232G ULC LFS

KMR232G ULC LFS

C&K

SWITCH TACTILE SPST-NO 0.05A 32V

33648

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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