PRA.M0.4GL.LC39G Circular Connector Receptacle - Equivalent & Substitute Parts

Part Overview

The PRA.M0.4GL.LC39G is a 4-position circular connector receptacle manufactured by LEMO, featuring female sockets with solder cup termination and gold-plated contacts. 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 746 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component interchange.

Substiute Parts

PRA.M0.4GL.LC39G

LEMOIn Stock: 850PRA.M0.4GL.LC39G Datasheet

Current PartRFQ

K11MA7-P04LJG0-3970

ODUIn Stock: 1107K11MA7-P04LJG0-3970 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PRA.M0.4GL.LC39G are identified based on strict equivalence across the following critical parameters:

• Connector type: Receptacle with female sockets
• Number of positions: 4
• Termination method: Solder cup
• Fastening mechanism: Push-pull detent lock
• Contact finish: Gold plating
• Ingress protection rating: IP50
• Shell material: Polysulfone (PSU)
• Insert material: Polyetheretherketone (PEEK)
• Mounting configuration: Free hanging (in-line)
• Cable opening range: 0.106" ~ 0.154" (2.70mm ~ 3.90mm)
• Compliance: ROHS3 compliant

The substitute part K11MA7-P04LJG0-3970 from ODU meets these core functional and mechanical requirements, enabling direct substitution in applications where component sourcing flexibility is required.

Parameter Comparison

Engineering Selection Recommendations

Both the PRA.M0.4GL.LC39G and K11MA7-P04LJG0-3970 are active production parts with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial, medical, and automotive applications.

The LEMO part operates across a wider temperature range (-50°C to 150°C) compared to the ODU substitute (-50°C to 120°C). Applications requiring operation above 120°C must use the primary LEMO part.

The ODU substitute provides a higher current rating (10A versus 8A), offering additional margin in power delivery applications. Both parts share identical mechanical interfaces, shell materials, and ingress protection ratings, supporting direct mechanical and electrical interchange in applications within the ODU temperature specification.

Frequently Asked Questions (FAQ)

Q: Can K11MA7-P04LJG0-3970 be used as a direct replacement for PRA.M0.4GL.LC39G?

A: Yes, for applications operating within -50°C to 120°C and requiring 8A or less current. Both connectors share identical mechanical dimensions, fastening mechanisms, and contact configurations. Applications requiring operation above 120°C require the LEMO part.

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

A: The primary differences are operating temperature range (LEMO: -50°C to 150°C; ODU: -50°C to 120°C) and current rating (LEMO: 8A; ODU: 10A). All other functional and mechanical parameters are equivalent.

Q: Are both parts compliant with current regulations?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for industrial and medical applications.

Q: What is the cable opening specification for both connectors?

A: Both connectors accept cable diameters between 0.106" and 0.154" (2.70mm to 3.90mm), ensuring compatibility with standard cable assemblies.

Q: Do these connectors require any special handling or storage?

A: Both parts have Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture control requirements during storage or handling.