PTS645SH43SMTR Equivalent & Substitute Parts

Part Overview

The PTS645SH43SMTR 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 12VDC. This surface mount component features top actuation with a 4.30mm actuator height and 6.00mm x 6.00mm outline dimensions. The part is currently listed as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and component procurement.

Substiute Parts

PTS645SH43SMTR

C&KIn Stock: 1087PTS645SH43SMTR Datasheet

Current PartRFQ

PTS645SH43SMTR92 LFS

C&KIn Stock: 280943PTS645SH43SMTR92 LFS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PTS645SH43SMTR is determined by strict equivalence across the following critical parameters:

• Circuit configuration (SPST-NO)
• Contact rating (0.05A @ 12VDC)
• Mounting type (Surface Mount)
• Actuator height (4.30mm)
• Outline dimensions (6.00mm x 6.00mm)
• Operating force (200gf)
• Mechanical life (100,000 Cycles)
• Termination style (Gull Wing)
• Base product series (PTS645)

The substitute part PTS645SH43SMTR92 LFS maintains identical electrical and mechanical specifications while differing in packaging format and product status. This part is currently in active production status, providing a direct functional replacement for the obsolete original part number.

Parameter Comparison

Engineering Selection Recommendations

The PTS645SH43SMTR92 LFS is the direct substitute for the obsolete PTS645SH43SMTR. Both parts are manufactured by C&K within the same PTS645 series and maintain identical electrical and mechanical specifications. The substitute part offers the following advantages:

• Active production status ensures ongoing availability and supply chain continuity
• ROHS3 compliance provides enhanced regulatory alignment compared to the original RoHS Compliant designation
• Tape & Reel packaging format supports automated assembly processes
• Identical contact rating, actuator geometry, and mechanical life specifications ensure drop-in compatibility

The substitute part is suitable for direct replacement in applications requiring the original part number's electrical and mechanical characteristics.

Frequently Asked Questions (FAQ)

Q: Can PTS645SH43SMTR92 LFS be used as a direct replacement for PTS645SH43SMTR?

A: Yes. Both parts share identical circuit configuration (SPST-NO), contact rating (0.05A @ 12VDC), actuator height (4.30mm), outline dimensions (6.00mm x 6.00mm), operating force (200gf), and mechanical life (100,000 cycles). The substitute part is functionally equivalent for all electrical and mechanical applications.

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

A: The primary differences are product status and packaging. PTS645SH43SMTR is obsolete, while PTS645SH43SMTR92 LFS is in active production. The substitute part is supplied in Tape & Reel packaging format, whereas the original part number uses standard packaging.

Q: Are there any compliance differences between the two parts?

A: Both parts are REACH Unaffected and carry EAR99 ECCN classification. The substitute part carries ROHS3 compliance, while the original part is RoHS Compliant. Both maintain MSL 1 (Unlimited) moisture sensitivity level.

Q: What is the operating temperature range for each part?

A: The original PTS645SH43SMTR operates from -10°C to 60°C. The substitute PTS645SH43SMTR92 LFS operates from -40°C to 85°C, providing an extended temperature range.

Q: Is the Tape & Reel packaging compatible with standard pick-and-place assembly equipment?

A: Tape & Reel packaging is the standard format for automated surface mount assembly. The PTS645SH43SMTR92 LFS in Tape & Reel format is compatible with conventional SMT assembly processes.