KSL0M511LFT Equivalent & Substitute Parts

Part Overview

The KSL0M511LFT 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 through-hole mounted component features top actuation with a 9.90mm actuator height and is designed for applications requiring momentary switching functionality.

The KSL0M511LFT is currently listed as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

KSL0M511LFT

C&KIn Stock: 740KSL0M511LFT Datasheet

Current PartRFQ

KSL0M511 LFTR

C&KIn Stock: 5158KSL0M511 LFTR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KSL0M511LFT is determined by strict equivalence across the following critical parameters:

• Circuit configuration: SPST-NO
• Contact rating: 0.05A @ 32VDC
• Switch function: Off-Mom (momentary operation)
• Mounting type: Through Hole
• Actuator height: 9.90mm
• Actuator orientation: Top Actuated
• Outline dimensions: 7.40mm x 7.40mm
• Operating force: 500gf
• Switch travel: 0.70mm
• Mechanical life: 100,000 Cycles
• Operating temperature range: -40°C ~ 90°C
• Ingress protection: IP60 - Dust Tight
• Termination style: PC Pin

The substitute part KSL0M511 LFTR meets all these criteria and belongs to the same KSL series from C&K. The primary distinction is product status and packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

The KSL0M511 LFTR is a direct functional equivalent to the KSL0M511LFT. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

The primary advantage of selecting KSL0M511 LFTR is its active product status. The KSL0M511LFT is obsolete, which presents supply chain risk for new production or long-term maintenance scenarios. The KSL0M511 LFTR maintains full availability and ongoing manufacturer support.

Both parts share identical electrical and mechanical specifications, ensuring direct interchangeability in circuit designs and PCB layouts. The difference in packaging (Tape & Reel versus Bulk) reflects distribution format and does not affect component performance or compatibility.

Frequently Asked Questions (FAQ)

Q: Can KSL0M511 LFTR be used as a direct replacement for KSL0M511LFT?

A: Yes. Both components are electrically and mechanically identical. They share the same SPST-NO circuit configuration, 0.05A @ 32VDC contact rating, 9.90mm actuator height, 7.40mm x 7.40mm outline, 500gf operating force, and 100,000 cycle mechanical life. PCB layout and design parameters require no modification.

Q: What is the difference between the two part numbers?

A: The KSL0M511LFT is obsolete, while KSL0M511 LFTR is active. The packaging differs: KSL0M511LFT uses Tape & Reel format, and KSL0M511 LFTR uses Bulk packaging. All functional and performance specifications are identical.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical regulatory classifications (ECCN: EAR99, HTSUS: 8536.50.9031).

Q: Does packaging format affect component performance?

A: No. Packaging format (Tape & Reel or Bulk) is a distribution and handling consideration only. It does not affect electrical performance, mechanical characteristics, or reliability of the tactile switch.

Q: What parameters must match for substitution eligibility?

A: Circuit configuration (SPST-NO), contact rating (0.05A @ 32VDC), switch function (momentary), mounting type (through hole), actuator specifications (height, orientation, travel), outline dimensions, operating force, mechanical life, temperature range, and ingress protection rating must all remain identical.