KSH241J 50 LFS Equivalent & Substitute Parts

Part Overview

The KSH241J 50 LFS is a tactile switch manufactured by C&K, featuring SPST-NO (Single Pole Single Throw - Normally Open) circuit configuration with a contact rating of 0.05A at 12VDC. This surface mount component is designed for momentary operation with top actuation and a square button actuator. The product is currently obsolete, making equivalent substitute parts necessary for ongoing design requirements, maintenance, and production continuity.

Substiute Parts

KSH241J 50 LFS

C&KIn Stock: 764KSH241J 50 LFS Datasheet

Current PartRFQ

ADTSJW67RVTR

APEM Inc.In Stock: 829ADTSJW67RVTR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KSH241J 50 LFS is determined by strict alignment with the following critical parameters:

• Circuit Configuration: Must be SPST-NO
• Switch Function: Must be Off-Mom (momentary operation)
• Contact Rating: Must support 0.05A @ 12VDC minimum
• Mounting Type: Must be Surface Mount
• Actuator Orientation: Must be Top Actuated
• Termination Style: Must be J Lead
• Outline Dimensions: Must be compatible with 6.30mm x 6.30mm footprint tolerance
• Regulatory Compliance: Must maintain RoHS and REACH compliance status

The ADTSJW67RVTR from APEM Inc. qualifies as a substitute part based on matching circuit configuration, switch function, contact rating, mounting type, actuator orientation, termination style, and outline dimensions within acceptable engineering tolerances. Both components share identical regulatory compliance profiles.

Parameter Comparison

Engineering Selection Recommendations

The ADTSJW67RVTR from APEM Inc. is qualified as a direct substitute for the obsolete KSH241J 50 LFS based on functional equivalence across all critical electrical and mechanical parameters. Both components maintain identical RoHS and REACH compliance status, ensuring regulatory continuity in applications requiring these certifications.

The ADTSJW67RVTR carries Active product status, providing supply chain availability and long-term support compared to the obsolete KSH241J 50 LFS. The substitute part is available in Tape & Reel packaging format, suitable for automated assembly processes.

Dimensional variations between the two components are minor: the ADTSJW67RVTR exhibits a 0.20mm reduction in outline width (6.20mm vs. 6.30mm) and a 0.20mm increase in actuator height (5.20mm vs. 5.00mm). Operating force differs by 40gf (260gf vs. 300gf), and switch travel is reduced to 0.45mm compared to 1.30mm. The operating temperature range of the substitute is narrower (-25°C ~ 70°C vs. -40°C ~ 90°C). These variations must be evaluated against specific application requirements before final component selection.

Frequently Asked Questions (FAQ)

Q: Can the ADTSJW67RVTR be used as a direct replacement for the KSH241J 50 LFS in existing designs?

A: The ADTSJW67RVTR qualifies as a functional equivalent based on matching circuit configuration (SPST-NO), switch function (Off-Mom), contact rating (0.05A @ 12VDC), mounting type (Surface Mount), actuator orientation (Top Actuated), and termination style (J Lead). However, dimensional and operational differences must be verified against PCB layout constraints and application performance requirements before implementation.

Q: What are the key dimensional differences between these two components?

A: The outline dimensions differ by 0.20mm in width (ADTSJW67RVTR: 6.30mm x 6.20mm vs. KSH241J 50 LFS: 6.30mm x 6.30mm). The actuator height increases by 0.20mm (5.20mm vs. 5.00mm). These variations may impact PCB routing and enclosure clearance in space-constrained applications.

Q: How do the operating characteristics differ?

A: The ADTSJW67RVTR operates with lower actuation force (260gf vs. 300gf) and significantly reduced switch travel (0.45mm vs. 1.30mm). The operating temperature range is narrower (-25°C ~ 70°C vs. -40°C ~ 90°C). Applications requiring extreme temperature operation or specific tactile feedback characteristics must account for these differences.

Q: Are both components RoHS and REACH compliant?

A: Yes. The KSH241J 50 LFS is RoHS Compliant and REACH Unaffected. The ADTSJW67RVTR is ROHS3 Compliant and REACH Unaffected. Both components meet current regulatory requirements for restricted substance compliance.

Q: What packaging formats are available for the substitute part?

A: The ADTSJW67RVTR is supplied in Tape & Reel (TR) format, optimized for automated pick-and-place assembly processes. The original KSH241J 50 LFS packaging format is not specified in available documentation.

Q: Is the ADTSJW67RVTR currently in production?

A: Yes. The ADTSJW67RVTR carries Active product status, ensuring ongoing manufacturing support and supply chain availability. The original KSH241J 50 LFS is Obsolete and no longer in production.