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C&K COMPONENTS KSR251GLFS Subminiature Tact Switch

The KSR Series Subminiature Tact Switch is designed for SMT applications, offering reliable, momentary or detect switch functionality with high durability of 200,000 cycles. Available with silver or gold contact materials, it supports various actuation forces from 1.5N to 4.5N. The switches are RoHS compliant, sealed IP50, suitable for automotive, medical, industrial electronics, and smart meters. Featuring gullwing terminals, they support lead-free reflow soldering, with different operating temperatures for standard and gold versions. Custom configurations are available for specific needs.

Authorized Distributors
Source:Newark
Part No:KSR251G LFS
Stock:2639
Inv Date:06-15-2026
Price: Unit price: $0.891
Buy/RFQ:
Source:DigiKey
Part No:KSR251G LFS
Stock:23884
Inv Date:06-15-2026
Price: Unit price: $0.84
Buy/RFQ:
Source:DigiKey
Part No:KSR251GLFS
Stock:40000
Inv Date:06-15-2026
Price: Unit price: $0.38
Buy/RFQ:
Part No:KSR251G LFS
Stock:14887
Inv Date:06-16-2026
Price: Unit price: $0.83
Buy/RFQ:
Part No:KSR251GLFS
Stock:0
Inv Date:06-16-2026
Price: N/A
Buy/RFQ:
Part No:KSR251GLFS
Stock:92500
Inv Date:06-15-2026
Price: Unit price: $0.3168
Buy/RFQ:
Part No:KSR251GLFS
Stock:92500
Inv Date:06-15-2026
Price: Unit price: $0.3168
Buy/RFQ:
Part No:KSR251GLFS
Stock:2500
Inv Date:06-15-2026
Price: Unit price: $0.325
Buy/RFQ:
Part No:KSR251G LFS
Stock:1245
Inv Date:06-16-2026
Price: N/A
Buy/RFQ:

C&K COMPONENTS KSR251GLFS Subminiature Tact Switch Specifications:

  • Function: momentary action
  • Maximum Power: 1VA for silver, 0.2VA for gold
  • Maximum Voltage: 32 VDC
  • Minimum Voltage: 20 mV
  • Maximum Current DC: 50 mA for silver, 10 mA for gold
  • Operating force: from 1.5N to 4.5N depending on model
  • Operating Life: 200,000 operations
  • Contact Resistance: < 100 mΩ
  • Insulation Resistance (100 V): 1 GΩ between terminals
  • Bounce Time: 1 ms max
  • Operating Temperature: -40°C to 85°C for silver, -40°C to 125°C for gold
  • Storage Temperature: -55°C to 85°C for silver, -55°C to 125°C for gold
  • Sealing: IP50
  • Soldering: Lead-free reflow compatible
  • Dimensions: shown in mm, specific to model
  • Delivery: Reels of 2,500 pieces, on continuous tape

Buy the CKSwitches Series KSR: Subminiature Tact Switch KSR251GLFS

Discover the durable and versatile CKSwitches Series KSR251GLFS tactile switch, offering 200,000 cycles and RoHS compliance. Its compact size makes it ideal for automotive, industrial electronics, medical devices, and smart meters. With options for silver or gold contact material, and a sealed IP50 design, it withstands harsh environments. Easy to solder with lead-free reflow process, ensuring reliable performance and long service life. Suitable for various applications requiring precise actuation forces, it is the perfect choice for your electronic assembly needs. Buy online today for fast, dependable delivery.

Order your CKSwitches Series KSR251GLFS tactile switch today and enhance your electronic projects with reliable, high-quality SMT switching solutions.

Frequently Asked Questions

Where can I buy C&K COMPONENTS KSR251GLFS?

You can click on the BUY or RFQ button to purchase KSR251GLFS from an authorized C&K COMPONENTS distributor.

How do I troubleshoot issues or seek technical support for part KSR251GLFS?

You can download the KSR251GLFS datasheet or visit the C&K COMPONENTS website for support.

Who is the manufacturer of KSR251GLFS?

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