PTS635SH50LFS Equivalent & Substitute Parts

Part Overview

The PTS635SH50LFS 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 through-hole mounted component features a rectangular button actuator with 5.00mm height and is designed for off-momentary switch function applications. The product is currently obsolete, making identification of equivalent and substitute parts essential for ongoing design support, maintenance, and production continuity.

Substiute Parts

PTS635SH50LFS

C&KIn Stock: 1566PTS635SH50LFS Datasheet

Current PartRFQ

EVQ-PE505K

Panasonic Electronic ComponentsIn Stock: 1130EVQ-PE505K Datasheet

SimilarRFQ

MJTP1250

APEM Inc.In Stock: 5977MJTP1250 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PTS635SH50LFS is determined by the following critical parameters:

• Circuit Configuration: Must be SPST-NO
• Contact Rating: Must support 0.05A @ 12VDC minimum
• Mounting Type: Must be Through Hole
• Actuator Orientation: Must be Top Actuated
• Termination Style: Must be PC Pin
• Regulatory Compliance: Must maintain ROHS3 Compliant and REACH Unaffected status

The identified substitute parts EVQ-PE505K (Panasonic Electronic Components) and MJTP1250 (APEM Inc.) meet these core electrical and mechanical requirements. Both maintain identical circuit configuration, contact rating, mounting type, and regulatory compliance. Dimensional variations and operating force differences fall within acceptable tolerance ranges for through-hole tactile switch applications.

Parameter Comparison

Engineering Selection Recommendations

Both EVQ-PE505K and MJTP1250 are suitable substitutes for the obsolete PTS635SH50LFS based on electrical and mechanical compatibility. The EVQ-PE505K offers an extended upper operating temperature limit of 85°C compared to the original 60°C specification, with a lower operating force of 160gf. The MJTP1250 provides an intermediate operating force of 180gf and an upper temperature limit of 70°C, with documented tactile feedback features.

Both substitute parts maintain active product status with established supply chains, ensuring long-term availability. All three parts maintain identical RoHS3 compliance and REACH unaffected status, supporting regulatory requirements for new designs and legacy system maintenance.

Frequently Asked Questions (FAQ)

Q: Can EVQ-PE505K and MJTP1250 be used interchangeably with PTS635SH50LFS?

A: Both parts meet the core electrical requirements (SPST-NO, 0.05A @ 12VDC) and mechanical specifications (through-hole, top-actuated, 5.00mm height, PC pin termination). Dimensional variations (6.00mm x 4.60mm versus 6.10mm x 3.70mm) are minor and typically accommodated in standard PCB layouts. Operating force differences (160gf and 180gf versus 200gf) should be evaluated against specific application tactile feedback requirements.

Q: What are the key differences between the two substitute parts?

A: EVQ-PE505K features the lowest operating force (160gf) and highest upper operating temperature (85°C). MJTP1250 provides a mid-range operating force (180gf) and includes documented tactile feedback features. Both offer superior mechanical life (50,000 cycles versus 20,000 cycles) compared to the original part.

Q: Are there temperature range considerations for substitution?

A: The original PTS635SH50LFS operates from -40°C to 60°C. EVQ-PE505K extends the upper limit to 85°C, while MJTP1250 reaches 70°C. Applications requiring the full -40°C lower temperature specification should confirm compatibility, as both substitutes have higher minimum operating temperatures (-30°C and -20°C respectively).

Q: Do all parts maintain the same regulatory compliance?

A: All three parts are ROHS3 compliant and REACH unaffected, maintaining identical regulatory status for design continuity and compliance documentation.

Q: What packaging considerations apply to these substitutes?

A: All parts are supplied in bulk packaging and feature identical PC pin termination for through-hole PCB assembly. No special handling or packaging modifications are required for substitution.