KSC351G Equivalent & Substitute Parts

Part Overview

The KSC351G is a tactile switch manufactured by C&K, classified as SPST-NO (Single Pole Single Throw - Normally Open) with a contact rating of 0.05A at 32VDC. This surface mount component features top actuation, gull wing termination, and IP67 ingress protection suitable for dust-tight and waterproof applications. The KSC351G is currently listed as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement.

Substiute Parts

KSC351G

C&KIn Stock: 806KSC351G Datasheet

Current PartRFQ

KSC351GLFS

C&KIn Stock: 21252KSC351GLFS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KSC351G is determined by strict equivalence across the following critical parameters:

• Circuit configuration (SPST-NO)
• Contact rating (0.05A @ 32VDC)
• Mounting type (Surface Mount)
• Actuator height (4.60mm vertical)
• Outline dimensions (6.20mm x 6.20mm)
• Operating force (500gf)
• Switch travel (0.25mm)
• Mechanical life (100,000 cycles)
• Operating temperature range (-40°C to 85°C)
• Ingress protection (IP67)
• Termination style (Gull Wing)

The KSC351GLFS is a direct functional equivalent within the KSC series, maintaining identical electrical and mechanical specifications while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The KSC351GLFS is the direct substitute for the obsolete KSC351G. Both components share identical electrical and mechanical specifications, ensuring pin-for-pin and functional compatibility. The KSC351GLFS offers two significant advantages: active product status with ongoing manufacturer support and ROHS3 compliance, whereas the KSC351G is RoHS non-compliant. The KSC351GLFS is supplied in Tape & Reel packaging, standard for high-volume surface mount assembly operations. Selection of the KSC351GLFS eliminates obsolescence risk and aligns with current regulatory compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can the KSC351GLFS directly replace the KSC351G in existing designs?

A: Yes. The KSC351GLFS maintains identical electrical ratings (0.05A @ 32VDC), mechanical dimensions (6.20mm x 6.20mm outline, 4.60mm actuator height), operating force (500gf), and circuit configuration (SPST-NO). No design modifications are required.

Q: What is the difference between KSC351G and KSC351GLFS packaging?

A: The KSC351G uses standard packaging, while the KSC351GLFS is supplied in Tape & Reel (TR) format. Tape & Reel packaging is optimized for automated surface mount assembly and is the standard delivery method for production quantities.

Q: Why is the KSC351G listed as obsolete?

A: The KSC351G has been superseded by the KSC351GLFS within the KSC series product line. The KSC351GLFS offers improved compliance status and active manufacturer support.

Q: Are there compliance differences between these parts?

A: Yes. The KSC351GLFS is ROHS3 compliant, while the KSC351G is RoHS non-compliant. Both maintain REACH Unaffected status and EAR99 ECCN classification. For applications subject to RoHS regulations, the KSC351GLFS is the required selection.

Q: What is the inventory status for these parts?

A: The KSC351G has 698 pieces in stock. The KSC351GLFS has 21,151 pieces in stock, providing greater availability for procurement.