KT11B2SAM Equivalent & Substitute Parts

Part Overview

The KT11B2SAM is a tactile switch manufactured by C&K, classified as SPST-NO (Single Pole Single Throw - Normally Open) with a contact rating of 1VA at 50V. This surface mount, right-angle actuated switch features sealed construction with IP57 ingress protection and operates across a temperature range of -40°C to 90°C. The part is currently listed as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement planning.

Substiute Parts

KT11B2SAM

C&KIn Stock: 1370KT11B2SAM Datasheet

Current PartRFQ

KT11B2SAM34LFS

C&KIn Stock: 4882KT11B2SAM34LFS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KT11B2SAM is determined by strict alignment with the following critical parameters:

• Circuit configuration must remain SPST-NO
• Switch function must be Off-Mom
• Mounting type must be Surface Mount, Right Angle
• Actuator orientation must be Side Actuated
• Termination style must be Gull Wing
• Physical outline must match 7.57mm x 4.38mm
• Ingress protection must maintain IP57 rating
• Operating temperature range must encompass -40°C to 90°C
• Mechanical life must meet or exceed 100,000 cycles

The contact rating voltage specification may be adjusted downward from 50V to lower voltage ratings, provided the substitute part maintains the 1VA power rating and the application voltage requirement does not exceed the substitute's rated voltage.

Parameter Comparison

Engineering Selection Recommendations

KT11B2SAM34LFS qualifies as a direct substitute for KT11B2SAM based on matching circuit topology, mechanical configuration, and environmental specifications. The substitute part carries Active product status, ensuring continued availability and supply chain stability compared to the obsolete original part.

The voltage rating differential (32V versus 50V) requires application-level verification. The substitute is suitable for applications operating at 32V or below. Applications requiring operation above 32V cannot use this substitute.

RoHS3 compliance of the substitute part provides regulatory advantage for new designs and procurement cycles. The Tape & Reel packaging of the substitute supports automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can KT11B2SAM34LFS replace KT11B2SAM in all applications?

A: Substitution is valid only when the application voltage does not exceed 32VAC/DC. The original part is rated to 50V; the substitute is rated to 32V. Verify your circuit voltage before substitution.

Q: What are the key differences between these parts?

A: The primary differences are product status (obsolete versus active), voltage rating (50V versus 32V), RoHS compliance status, and packaging format. All mechanical and functional parameters remain identical.

Q: Does the packaging change affect PCB assembly?

A: KT11B2SAM34LFS is supplied in Tape & Reel format, which is standard for automated surface mount assembly. The original part packaging is not specified. Confirm your assembly process compatibility with Tape & Reel packaging.

Q: Are there any compliance considerations for substitution?

A: The substitute part is ROHS3 compliant, whereas the original is non-compliant. For new designs or procurement in regulated markets, the substitute provides compliance advantage. Existing designs using the original part do not require modification for compliance purposes.

Q: What is the mechanical life expectancy?

A: Both parts are rated for 100,000 mechanical cycles, providing equivalent durability and operational lifespan.