KSC541G Equivalent & Substitute Parts

Part Overview

The KSC541G 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 or side actuation with a 5.60mm actuator height and sealed design rated IP50 for dust protection. The KSC541G is currently listed as obsolete, making identification of compatible substitute parts essential for ongoing production and maintenance applications. The primary substitute addresses RoHS compliance requirements while maintaining identical electrical and mechanical specifications.

Substiute Parts

KSC541G

C&KIn Stock: 1174KSC541G Datasheet

Current PartRFQ

KSC541G ROHS

C&KIn Stock: 60265KSC541G ROHS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KSC541G is determined by strict equivalence across all electrical and mechanical parameters. The substitute part KSC541G ROHS maintains identical specifications in the following critical areas:

• Circuit configuration and switch function (SPST-NO, Off-Mom)
• Electrical ratings (0.05A @ 32VDC contact rating)
• Physical dimensions and mounting characteristics (6.20mm x 6.20mm outline, 5.60mm actuator height, surface mount gull wing termination)
• Mechanical performance (300gf operating force, 10,000 cycle mechanical life, 0.25mm/0.50mm switch travel)
• Environmental protection (IP50 sealed design, -40°C ~ 85°C operating range)
• Regulatory compliance baseline (REACH Unaffected, EAR99 classification)

The primary distinction between the main part and substitute is product status and RoHS compliance certification, not functional or dimensional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The KSC541G ROHS serves as the direct functional equivalent to the obsolete KSC541G. Selection between these parts is determined by regulatory and supply chain requirements rather than technical performance differences.

For applications subject to RoHS3 compliance mandates or procurement policies requiring active product status, KSC541G ROHS is the appropriate selection. This part maintains full electrical and mechanical compatibility with designs originally specified for KSC541G while providing current manufacturing availability and regulatory certification.

For legacy systems or applications without RoHS compliance requirements, the original KSC541G remains functionally equivalent where inventory permits. However, given the obsolete status of KSC541G and the active availability of KSC541G ROHS (60,200 units in stock versus 1,067 units), transition to the RoHS-compliant variant is recommended for new production and restocking decisions.

Frequently Asked Questions (FAQ)

Q: Are KSC541G and KSC541G ROHS electrically interchangeable?

A: Yes. Both parts share identical electrical specifications: SPST-NO circuit configuration, 0.05A @ 32VDC contact rating, and Off-Mom switch function. They are direct electrical equivalents.

Q: Do these parts have the same physical footprint?

A: Yes. Both parts feature identical surface mount dimensions (6.20mm x 6.20mm outline), 5.60mm actuator height, gull wing termination, and top or side actuation orientation. PCB layout and assembly tooling are compatible.

Q: What is the difference between KSC541G and KSC541G ROHS?

A: The primary differences are product status and RoHS compliance certification. KSC541G is obsolete and RoHS non-compliant. KSC541G ROHS is an active product with ROHS3 compliance. All functional and mechanical specifications are identical.

Q: Can I use KSC541G ROHS in a design originally specified for KSC541G?

A: Yes. KSC541G ROHS is a direct substitute with no design modifications required. All electrical ratings, mechanical characteristics, and environmental specifications are equivalent.

Q: What packaging options are available?

A: KSC541G ROHS is supplied in Cut Tape (CT) packaging. The original KSC541G packaging specification was not provided in the technical data.

Q: Are there any compliance or certification differences?

A: Both parts maintain identical REACH Unaffected status and EAR99 ECCN classification. The distinction is RoHS compliance: KSC541G is non-compliant, while KSC541G ROHS meets ROHS3 requirements.