KSC423J 70 SH Equivalent & Substitute Parts

Part Overview

The KSC423J 70 SH is a tactile switch manufactured by C&K, classified as SPST-NO (Single Pole Single Throw - Normally Open) with a contact rating of 0.01A at 32VDC. This surface mount component features top actuation, IP67 ingress protection, and is designed for applications requiring reliable tactile feedback with sealed operation. The main part number is currently listed as obsolete, making identification of active equivalent alternatives essential for ongoing production and design continuity.

Substiute Parts

KSC423J 70 SH

C&KIn Stock: 966KSC423J 70 SH Datasheet

Current PartRFQ

KSC423J 70SH LFG

C&KIn Stock: 1095KSC423J 70SH LFG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KSC423J 70 SH is determined by strict equivalence across the following critical parameters:

• Circuit configuration (SPST-NO)
• Contact rating (0.01A @ 32VDC)
• Mounting type (Surface Mount)
• Actuator orientation (Top Actuated)
• Physical outline (6.20mm x 6.20mm)
• Actuator height (5.20mm)
• Switch travel (0.50mm)
• Ingress protection rating (IP67)
• Operating temperature range (-40°C ~ 125°C)
• Mechanical life (300,000 Cycles)
• Termination style (J Lead)

The KSC423J 70SH LFG meets all these criteria and is classified as a direct substitute. The primary distinction is packaging format and product status: the substitute is supplied in Tape & Reel format and maintains active product status, whereas the original part is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The KSC423J 70SH LFG is the direct active equivalent for the obsolete KSC423J 70 SH. Selection of the substitute part is justified on the following grounds:

• Identical electrical and mechanical specifications across all critical parameters
• Active product status ensures ongoing availability and supply chain continuity
• ROHS3 compliance of the substitute part meets current regulatory requirements, whereas the original part is RoHS non-compliant
• Tape & Reel packaging of the substitute accommodates automated assembly processes
• Operating force differential (160gf vs. 170gf) remains within acceptable tactile feedback tolerances for equivalent functional performance

For applications requiring the original part specification, the KSC423J 70SH LFG provides full functional and dimensional compatibility with improved compliance status.

Frequently Asked Questions (FAQ)

Q: Can KSC423J 70SH LFG be used as a direct replacement for KSC423J 70 SH in existing designs?

A: Yes. Both parts share identical circuit configuration, contact rating, mounting type, physical dimensions, actuator height, switch travel, ingress protection rating, operating temperature range, and mechanical life. The parts are functionally and mechanically interchangeable.

Q: What is the significance of the operating force difference (170gf vs. 160gf)?

A: The operating force differential of 10gf represents a minor variation within the tactile feedback characteristics of the switch. Both values fall within acceptable ranges for standard tactile switch applications and do not affect functional compatibility or circuit performance.

Q: Why is the substitute part supplied in Tape & Reel packaging?

A: Tape & Reel (TR) packaging is the standard format for high-volume surface mount component distribution. This packaging format is optimized for automated pick-and-place assembly processes and provides improved handling efficiency compared to bulk packaging.

Q: Does the RoHS3 compliance of the substitute part affect compatibility?

A: No. RoHS3 compliance of the KSC423J 70SH LFG indicates improved environmental and regulatory alignment. The substitute part meets current RoHS requirements, whereas the original part does not. This represents an advantage for new designs and ongoing production.

Q: Are there any electrical performance differences between the two parts?

A: No. Both parts maintain identical contact ratings (0.01A @ 32VDC), circuit configuration (SPST-NO), and all other electrical specifications. Electrical performance is equivalent.