myMectronic
myMectronic

A Premier B2B Part Search

C&K COMPONENTS KSC621JLFS Sealed Tactile Switch

The KSC621JLFS is a sealed, low-profile tactile switch designed for SMT applications, offering a 4.0 N actuation force. It features IP67 sealing, high durability with 300,000 cycles, and is RoHS compliant with silver plating. Suitable for industrial electronics, automotive, and medical equipment, it provides reliable momentary action with a small footprint of 4.0 mm size and flexible mounting options, including gullwing terminals. Its high-quality contacts ensure stable electrical performance even in harsh environments, making it ideal for compact, high-reliability systems requiring a sharp tactile feel and long life cycle.

Authorized Distributors
Source:Newark
Part No:KSC621JLFS
Stock:1200
Inv Date:06-15-2026
Price: Unit price: $0.751
Buy/RFQ:
Source:DigiKey
Part No:KSC621J LFS
Stock:60614
Inv Date:06-15-2026
Price: Unit price: $0.82
Buy/RFQ:
Source:DigiKey
Part No:KSC621JLFS
Stock:19895
Inv Date:06-15-2026
Price: Unit price: $0.37
Buy/RFQ:
Part No:KSC621J LFS
Stock:18517
Inv Date:06-16-2026
Price: Unit price: $0.8
Buy/RFQ:
Part No:KSC621JLFS
Stock:0
Inv Date:06-16-2026
Price: N/A
Buy/RFQ:
Part No:KSC621JLFS
Stock:45103
Inv Date:06-15-2026
Price: Unit price: $0.3153
Buy/RFQ:
Part No:KSC621JLFS
Stock:45103
Inv Date:06-15-2026
Price: Unit price: $0.3153
Buy/RFQ:
Part No:KSC621JLFS
Stock:15200
Inv Date:06-15-2026
Price: Unit price: $0.32
Buy/RFQ:

C&K COMPONENTS KSC621JLFS Sealed Tactile Switch Specifications:

  • Function: Momentary action
  • Contact Arrangement: SPST, N.O.
  • Termination: Gullwing type for SMT
  • Travel: 0.2 mm + 0.2 mm / - 0.1 mm
  • Operating Force: 4.0 N (400 grams)
  • Mechanical Life: 300,000 cycles
  • Max Voltage: 32 VDC
  • Max Current: 50 mA
  • Dielectric Strength: > 250 Vrms
  • Contact Resistance: < 100 mΩ
  • Insulation Resistance: > 1 GΩ
  • Sealing Level: IP67
  • Operating Temperature: -40°C to 85°C
  • Storage Temperature: -55°C to 85°C
  • Soldering: Lead free reflow soldering in accordance with IEC 61760-1
  • Reel Packaging: 1000 pieces per reel (Ø330 mm)
  • External Diameter of reel: 330 mm + 2 mm

Buy the Buy CKSwitches KSC621JLFS Miniature Sealed Tactile Switch Online

Order CKSwitches KSC621JLFS sealed SMT tactile switch online today. With IP67 sealing, 4.0 N actuation force, and 300,000 cycle durability, it’s perfect for industrial, automotive, and medical applications. Compact and RoHS compliant, it offers reliable momentary action with silver contacts. Ideal for high-reliability systems requiring tiny footprint, excellent tactile feedback, and long life. Designed for surface mounting, it ensures stable, consistent performance in demanding environments, making it excellent for use in small, high-performance electronic devices.

Get CKSwitches KSC621JLFS high-quality sealed tactile switch today—built for reliable performance in harsh environments and compact designs.

Frequently Asked Questions

Where can I buy C&K COMPONENTS KSC621JLFS?

You can click on the BUY or RFQ button to purchase KSC621JLFS from an authorized C&K COMPONENTS distributor.

How do I troubleshoot issues or seek technical support for part KSC621JLFS?

You can download the KSC621JLFS datasheet or visit the C&K COMPONENTS website for support.

Who is the manufacturer of KSC621JLFS?

C&K COMPONENTS

C&K COMPONENTS Part List

Browse and search other C&K COMPONENTS parts, locate datasheets and stock

Sponsored by