PRA.M0.4GL.LC52V Equivalent & Substitute Parts

Part Overview

The PRA.M0.4GL.LC52V is a 4-position circular connector receptacle manufactured by LEMO, featuring female sockets with solder cup termination. This connector is designed for applications requiring push-pull detent lock fastening in automotive, industrial, medical, and testing equipment environments. The part is currently active in production with 1,049 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements permit equivalent configurations.

Key Parameters

Parameter	Value
Connector Type	Receptacle, Female Sockets
Number of Positions	4
Termination Type	Solder Cup
Fastening Type	Push-Pull, Detent Lock
Shell Material	Polysulfone (PSU)
Contact Finish	Gold
Ingress Protection	IP50 - Dust Protected
Current Rating	8A
Operating Temperature Range	-50°C ~ 150°C
Cable Opening	0.157" ~ 0.205" (4.00mm ~ 5.20mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

The K11MA7-P04LJG0-5250 (ODU MEDI-SNAP®) is identified as an equivalent substitute based on the following critical parameters:

Connector Configuration: Both parts are 4-position circular connector receptacles with female sockets
Termination Method: Both utilize solder cup termination for identical PCB integration
Fastening Mechanism: Both employ push-pull detent lock fastening
Shell Material: Both feature Polysulfone (PSU) construction
Contact Finish: Both provide gold-plated mating surfaces
Ingress Protection: Both meet IP50 dust protection requirements
Cable Opening Compatibility: Both accept 4.00mm ~ 5.20mm cable diameters
Regulatory Compliance: Both are ROHS3 compliant and REACH unaffected
Mounting Configuration: Both are free hanging in-line designs with backshell features

Parameter Comparison

Parameter	PRA.M0.4GL.LC52V (LEMO)	K11MA7-P04LJG0-5250 (ODU)	Compatibility Note
Connector Type	Receptacle, Female Sockets	Receptacle, Female Sockets	Identical
Number of Positions	4	4	Identical
Termination	Solder Cup	Solder Cup	Identical
Fastening Type	Push-Pull, Detent Lock	Push-Pull, Detent Lock	Identical
Shell Material	Polysulfone (PSU)	Polysulfone (PSU)	Identical
Contact Finish	Gold	Gold	Identical
Ingress Protection	IP50 - Dust Protected	IP50 - Dust Protected	Identical
Current Rating	8A	10A	ODU rated higher
Operating Temperature	-50°C ~ 150°C	-50°C ~ 120°C	LEMO rated higher
Cable Opening	0.157" ~ 0.205" (4.00mm ~ 5.20mm)	0.157" ~ 0.205" (4.00mm ~ 5.20mm)	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Identical

Engineering Selection Recommendations

Both the PRA.M0.4GL.LC52V and K11MA7-P04LJG0-5250 are active production parts with full ROHS3 compliance and REACH unaffected status, making either suitable for new designs and production applications.

The selection between these parts should be based on application-specific requirements:

Temperature-Critical Applications: The PRA.M0.4GL.LC52V supports operation to 150°C, providing a 30°C advantage over the ODU substitute for high-temperature environments.
Current-Limited Applications: The K11MA7-P04LJG0-5250 is rated for 10A versus 8A for the LEMO part, offering additional current capacity margin for power-intensive circuits.
Supply Chain Considerations: Both parts maintain active inventory status (1,049 units for LEMO; 985 units for ODU), supporting consistent procurement.

Both connectors meet identical mechanical, electrical, and environmental specifications for the core 4-position, solder cup, push-pull detent lock configuration, ensuring functional interchangeability in applications within the overlapping operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the K11MA7-P04LJG0-5250 directly replace the PRA.M0.4GL.LC52V in existing designs?

A: Yes, for applications operating within -50°C to 120°C and requiring 10A or less current. The mechanical interface, termination method, and electrical characteristics are equivalent. Applications requiring operation above 120°C must retain the LEMO part.

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

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 specified parameters are identical.

Q: Are both parts suitable for medical applications?

A: Yes. Both the PRA.M0.4GL.LC52V and K11MA7-P04LJG0-5250 are listed for medical applications and maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What is the cable opening specification, and does it apply to both parts?

A: Both connectors accept cable diameters of 0.157" to 0.205" (4.00mm to 5.20mm). This specification is identical for both parts.

Q: Are there any packaging differences between these substitutes?

A: The PRA.M0.4GL.LC52V is supplied in standard packaging, while the K11MA7-P04LJG0-5250 is supplied in bulk packaging. Confirm packaging requirements with procurement specifications.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both are ROHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8536.69.4020) classifications.

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