KSC323J Equivalent & Substitute Parts

Part Overview

The KSC323J 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 minimal travel distance. The KSC323J is currently listed as obsolete, making identification of compatible substitute parts essential for ongoing production and maintenance applications.

Substiute Parts

KSC323J

C&KIn Stock: 948KSC323J Datasheet

Current PartRFQ

KSC323JLFG

C&KIn Stock: 20030KSC323JLFG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KSC323J is determined by strict equivalence across electrical and mechanical parameters. The primary substitute, KSC323JLFG, maintains identical specifications across all critical functional dimensions: circuit configuration (SPST-NO), contact rating (0.01A @ 32VDC), actuator geometry (4.60mm height, 6.20mm x 6.20mm outline), operating force (200gf), switch travel (0.20mm), mechanical life (300,000 cycles), temperature range (-40°C to 125°C), and ingress protection (IP67). The key differentiator is packaging format and product status. The KSC323JLFG is supplied in Tape & Reel (TR) packaging and maintains Active product status, whereas the KSC323J uses standard packaging and is Obsolete.

Parameter Comparison

Engineering Selection Recommendations

The KSC323JLFG is the direct functional equivalent to the KSC323J and is suitable for all applications where the KSC323J was originally specified. Selection between these parts should be based on the following criteria:

For new designs and active production: The KSC323JLFG is the recommended choice due to its Active product status, ensuring long-term availability and supply chain stability. The Tape & Reel packaging format is standard for high-volume manufacturing operations and automated assembly processes.

For legacy system maintenance: The KSC323JLFG provides electrical and mechanical compatibility with existing designs using the KSC323J, with no circuit redesign required. The identical footprint, lead configuration, and performance characteristics ensure drop-in replacement capability.

Compliance considerations: The KSC323JLFG meets ROHS3 compliance requirements, whereas the KSC323J is RoHS non-compliant. For applications subject to RoHS regulations, the KSC323JLFG is the mandated choice.

Frequently Asked Questions (FAQ)

Q: Can the KSC323JLFG be used as a direct replacement for the KSC323J in existing PCB designs?

A: Yes. The KSC323JLFG maintains identical electrical specifications (0.01A @ 32VDC, SPST-NO configuration), mechanical dimensions (6.20mm x 6.20mm outline, 4.60mm actuator height), and J Lead termination style. No PCB layout modifications are required.

Q: What is the difference between the KSC323J and KSC323JLFG packaging?

A: The KSC323J uses standard packaging, while the KSC323JLFG is supplied in Tape & Reel (TR) format. Tape & Reel packaging is optimized for automated pick-and-place assembly and is the standard format for production quantities.

Q: Why is the KSC323J listed as obsolete?

A: The KSC323J has been superseded by the KSC323JLFG, which offers improved compliance status (ROHS3 Compliant) and maintains Active product status for ongoing availability.

Q: Are there any performance differences between these parts?

A: No. Both parts share identical contact ratings, operating force (200gf), switch travel (0.20mm), mechanical life (300,000 cycles), temperature range (-40°C to 125°C), and IP67 ingress protection rating.

Q: What is the inventory status for these parts?

A: The KSC323J has 874 pieces in stock (Obsolete status). The KSC323JLFG has 19,928 pieces in stock (Active status), providing superior supply availability for ongoing production requirements.

Q: Are moisture sensitivity considerations different between these parts?

A: No. Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture control requirements during storage or handling.