KSC151J Equivalent & Substitute Parts

Part Overview

The KSC151J 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, IP67 ingress protection, and is designed for applications requiring reliable tactile feedback with minimal travel distance. The KSC151J is currently listed as obsolete, making identification of compatible substitute parts essential for ongoing production and maintenance applications.

Substiute Parts

KSC151J

C&KIn Stock: 1098KSC151J Datasheet

Current PartRFQ

KSC151JLFS

C&KIn Stock: 9835KSC151JLFS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KSC151J is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications in the following areas:

• Circuit configuration (SPST-NO)
• Contact rating (0.05A @ 32VDC)
• Surface mount packaging with J lead termination
• Physical footprint (6.20mm x 6.20mm outline)
• Actuator height (2.50mm vertical)
• Operating force (550gf)
• Switch travel distance (0.35mm)
• Ingress protection rating (IP67)
• Operating temperature range (-40°C ~ 85°C)
• Mechanical life specification (100,000 cycles)

The KSC151JLFS meets all these criteria and is therefore a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The KSC151JLFS is the direct substitute for the obsolete KSC151J. Both components are electrically and mechanically identical across all specified parameters. The primary distinctions are product status and regulatory compliance:

The KSC151J is obsolete and no longer in active production. The KSC151JLFS maintains active product status with current manufacturing support and availability.

The KSC151JLFS carries ROHS3 compliance, whereas the KSC151J is RoHS non-compliant. For applications subject to RoHS regulations, the KSC151JLFS is the appropriate selection.

Both parts share identical REACH status (REACH Unaffected) and ECCN classification (EAR99).

The KSC151JLFS is supplied in Tape & Reel packaging, which is standard for high-volume production environments, whereas the KSC151J was supplied in bulk packaging.

Frequently Asked Questions (FAQ)

Q: Can the KSC151JLFS be used as a direct replacement for the KSC151J in existing designs?

A: Yes. The KSC151JLFS is electrically and mechanically equivalent to the KSC151J across all specified parameters, including circuit configuration, contact rating, physical dimensions, actuator characteristics, and environmental specifications. PCB layout and schematic modifications are not required.

Q: What is the difference between the KSC151J and KSC151JLFS?

A: The primary differences are product status, RoHS compliance, and packaging format. The KSC151J is obsolete and RoHS non-compliant, while the KSC151JLFS is an active product with ROHS3 compliance. The KSC151JLFS is supplied in Tape & Reel packaging for automated assembly, whereas the KSC151J was supplied in bulk format.

Q: Are there any compatibility concerns when substituting the KSC151JLFS for the KSC151J?

A: No compatibility concerns exist. Both components share identical electrical ratings, mechanical specifications, and environmental operating parameters. The J lead termination style and surface mount footprint are identical.

Q: What packaging options are available for the KSC151JLFS?

A: The KSC151JLFS is supplied in Tape & Reel (TR) packaging, which is standard for surface mount production environments and automated pick-and-place assembly.

Q: Is the KSC151JLFS RoHS compliant?

A: Yes. The KSC151JLFS is ROHS3 compliant. The original KSC151J is RoHS non-compliant. For applications requiring RoHS compliance, the KSC151JLFS is the appropriate selection.