MJTP11935 Equivalent & Substitute Parts

Part Overview

The MJTP11935 is an illuminated tactile switch manufactured by APEM Inc., featuring SPST-NO (Single Pole Single Throw - Normally Open) circuit configuration with a contact rating of 0.05A at 12VDC. This through-hole mounted switch includes yellow LED illumination and is designed for applications requiring tactile feedback with top actuation. The product is currently active and in stock with 659 units available. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across different manufacturers while meeting the same functional requirements.

Substiute Parts

MJTP11935

APEM Inc.In Stock: 750MJTP11935 Datasheet

Current PartRFQ

PTS125SK85-2 LFS

C&KIn Stock: 5862PTS125SK85-2 LFS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MJTP11935 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 compatible
• Actuator orientation must be top-actuated
• Termination style must be PC pin
• RoHS3 compliance required
• MSL rating of 1 (Unlimited) required

The PTS125SK85-2 LFS from C&K meets the core electrical and mechanical substitution criteria. However, this substitute introduces design differences in illumination capability, actuator dimensions, and operating force that must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the MJTP11935 and PTS125SK85-2 LFS are active products with ROHS3 compliance and unlimited moisture sensitivity ratings, making them suitable for production environments. The primary selection criterion depends on application-specific requirements:

The MJTP11935 is the specified component when illumination feedback is required. Its integrated yellow LED at 2.1VDC nominal provides visual indication capability that the PTS125SK85-2 LFS does not provide.

The PTS125SK85-2 LFS serves as a substitute only in applications where illumination is not required. This substitute offers extended mechanical life (200,000 cycles versus 100,000 cycles) and a wider low-temperature operating range (-40°C versus -20°C). However, the larger footprint (12.00mm x 12.00mm versus 6.40mm x 6.20mm), increased actuator height (8.50mm versus 7.00mm), and higher operating force (250gf versus 160gf) represent significant mechanical differences that require PCB layout and user interface reassessment.

Frequently Asked Questions (FAQ)

Q: Can the PTS125SK85-2 LFS replace the MJTP11935 in all applications?

A: No. The PTS125SK85-2 LFS is a non-illuminated switch and cannot provide the yellow LED indication function of the MJTP11935. Substitution is only valid for applications where illumination is not required.

Q: What are the critical differences between these two switches?

A: The primary differences are: (1) illumination capability—MJTP11935 includes yellow LED, PTS125SK85-2 LFS does not; (2) physical dimensions—PTS125SK85-2 LFS is significantly larger (12.00mm x 12.00mm versus 6.40mm x 6.20mm); (3) actuator height—PTS125SK85-2 LFS is 1.50mm taller; (4) operating force—PTS125SK85-2 LFS requires 250gf versus 160gf for MJTP11935.

Q: Are both switches RoHS compliant?

A: Yes. Both the MJTP11935 and PTS125SK85-2 LFS are ROHS3 compliant with unlimited moisture sensitivity ratings (MSL 1).

Q: Which switch has longer mechanical life?

A: The PTS125SK85-2 LFS is rated for 200,000 cycles compared to 100,000 cycles for the MJTP11935, providing extended operational life in high-cycle applications.

Q: Do these switches have different operating temperature ranges?

A: Yes. The MJTP11935 operates from -20°C to 70°C, while the PTS125SK85-2 LFS operates from -40°C to 60°C. The PTS125SK85-2 LFS provides lower temperature capability but a narrower upper temperature limit.

Q: What is the contact rating for both switches?

A: Both switches are rated for 0.05A at 12VDC, meeting equivalent electrical load requirements.