PRA.M0.4GL.LC39V Equivalent & Substitute Parts

Part Overview

The PRA.M0.4GL.LC39V is a 4-position circular connector receptacle manufactured by LEMO, featuring female sockets with solder cup termination. This connector is designed for applications requiring reliable push-pull detent lock fastening in automotive, industrial, medical, and testing equipment environments. The part is currently active in production with 1,085 units in stock. Equivalent and substitute parts are identified to provide procurement flexibility, ensure supply chain continuity, and support design standardization across compatible applications.

Substiute Parts

PRA.M0.4GL.LC39V

LEMOIn Stock: 1173PRA.M0.4GL.LC39V Datasheet

Current PartRFQ

K11MA7-P04LJG0-3950

ODUIn Stock: 948K11MA7-P04LJG0-3950 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PRA.M0.4GL.LC39V is determined by strict alignment of the following critical parameters:

• Connector Configuration: Receptacle with female sockets, 4-position arrangement
• Termination Method: Solder cup for PCB or cable integration
• Fastening Mechanism: Push-pull detent lock for secure mating
• Shell Material: Polysulfone (PSU) for mechanical and thermal stability
• Contact Finish: Gold plating for corrosion resistance and signal integrity
• Ingress Protection: IP50 rating for dust protection in industrial and medical environments
• Mechanical Compatibility: Cable opening range 0.106" ~ 0.154" (2.70mm ~ 3.90mm)
• Regulatory Compliance: ROHS3 compliance and REACH unaffected status

The substitute part K11MA7-P04LJG0-3950 (ODU MEDI-SNAP®) meets all critical substitution criteria within the allowed parameter set.

Parameter Comparison

Engineering Selection Recommendations

Both the PRA.M0.4GL.LC39V and K11MA7-P04LJG0-3950 are active production parts with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial, medical, and automotive applications.

The K11MA7-P04LJG0-3950 provides a higher current rating of 10A compared to the 8A rating of the PRA.M0.4GL.LC39V, making it suitable for applications with increased power delivery requirements. However, the PRA.M0.4GL.LC39V supports an extended operating temperature range of -50°C to 150°C, compared to -50°C to 120°C for the ODU substitute, making it preferable for high-temperature environments.

Selection between these parts should be based on specific application requirements regarding current capacity and operating temperature limits. Both parts maintain identical mechanical, electrical, and protective characteristics across all other critical parameters.

Frequently Asked Questions (FAQ)

Q: Can K11MA7-P04LJG0-3950 be used as a direct replacement for PRA.M0.4GL.LC39V?

A: Yes, within the constraints of your application's current and temperature requirements. Both connectors share identical configurations for position count, termination method, fastening mechanism, shell material, contact finish, and ingress protection. Verify that the 10A current rating and -50°C to 120°C temperature range of the ODU part meet your design specifications.

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

A: The primary differences are current rating (ODU 10A vs. LEMO 8A) and maximum operating temperature (LEMO 150°C vs. ODU 120°C). All other electrical, mechanical, and protective parameters are identical.

Q: Are both parts suitable for medical applications?

A: Yes. Both the PRA.M0.4GL.LC39V and K11MA7-P04LJG0-3950 are listed for medical applications and maintain ROHS3 compliance and REACH unaffected status.

Q: What is the significance of the cable opening specification?

A: The cable opening range of 0.106" to 0.154" (2.70mm to 3.90mm) defines the acceptable cable diameter for backshell assembly. Both parts support identical cable opening specifications, ensuring mechanical compatibility.

Q: Does packaging format affect substitution eligibility?

A: Packaging format (bulk vs. other configurations) does not affect electrical or mechanical compatibility. Selection should be based on procurement and inventory management requirements.