PTS635VL39 LFS Equivalent & Substitute Parts

Part Overview

The PTS635VL39 LFS 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 component features side actuation, through-hole right-angle mounting, and a rectangular button actuator. The product is currently obsolete, making identification of suitable substitute components essential for ongoing maintenance, repair, and redesign applications where this switch was originally specified.

Substiute Parts

PTS635VL39 LFS

C&KIn Stock: 836PTS635VL39 LFS Datasheet

Current PartRFQ

MJTP1117

APEM Inc.In Stock: 17992MJTP1117 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PTS635VL39 LFS is determined by strict alignment of the following critical parameters:

• Circuit configuration (SPST-NO)
• Switch function (Off-Mom momentary operation)
• Contact rating (0.05A @ 12VDC minimum)
• Actuator type (Rectangular button)
• Mounting type (Through hole, right angle)
• Actuator orientation (Side actuated)
• Outline dimensions (6.00mm x 4.60mm)
• Termination style (PC pin)
• Illumination status (Non-illuminated)

The MJTP1117 manufactured by APEM Inc. meets all critical substitution criteria. While secondary parameters such as actuator length, operating force, and mechanical life differ, these variations remain within acceptable engineering tolerances for equivalent functional performance in the specified application context.

Parameter Comparison

Engineering Selection Recommendations

The MJTP1117 is the qualified substitute for the obsolete PTS635VL39 LFS. Selection is based on the following engineering criteria:

• Both components maintain identical circuit configuration (SPST-NO) and contact rating (0.05A @ 12VDC), ensuring electrical compatibility in the original application.
• Mechanical compatibility is confirmed through matching outline dimensions (6.00mm x 4.60mm), mounting type (through hole, right angle), and actuator orientation (side actuated).
• The MJTP1117 carries active product status with ROHS3 compliance, providing long-term supply chain availability and regulatory alignment.
• The substitute component offers extended mechanical life (100,000 cycles versus 20,000 cycles), providing enhanced durability in high-cycle applications.
• Operating temperature range expansion (-20°C ~ 70°C versus -40°C ~ 60°C) accommodates broader environmental conditions, though applications requiring the original -40°C lower limit require thermal evaluation.

Frequently Asked Questions (FAQ)

Q: Can the MJTP1117 be used as a direct replacement for the PTS635VL39 LFS?

A: Yes. Both components share identical circuit configuration (SPST-NO), contact rating (0.05A @ 12VDC), outline dimensions (6.00mm x 4.60mm), mounting type (through hole, right angle), and actuator orientation (side actuated). These parameters define functional equivalence for this switch category.

Q: What are the differences between these two components?

A: The MJTP1117 features a slightly shorter actuator length (3.72mm versus 3.85mm), higher operating force (180gf versus 130gf), extended mechanical life (100,000 cycles versus 20,000 cycles), and a wider operating temperature range (-20°C ~ 70°C versus -40°C ~ 60°C). The substitute also includes tactile feedback as a documented feature.

Q: Are there packaging considerations for substitution?

A: The PTS635VL39 LFS is supplied in standard packaging, while the MJTP1117 is supplied in bulk packaging. Both use identical PC pin termination and through-hole mounting, requiring no PCB redesign for substitution.

Q: Does the operating temperature range difference affect substitution eligibility?

A: The MJTP1117 operating range (-20°C ~ 70°C) does not extend to the original component's -40°C lower limit. Applications requiring operation below -20°C require thermal performance evaluation before substitution.

Q: What is the compliance status of the substitute component?

A: The MJTP1117 is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The original PTS635VL39 LFS is RoHS compliant but obsolete.