PRA.M0.4GL.LC52G Equivalent & Substitute Parts

Part Overview

The PRA.M0.4GL.LC52G 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 887 units in stock. Equivalent and substitute parts are identified to provide procurement flexibility, ensure supply chain continuity, and support design standardization across compatible applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	PRA.M0.4GL.LC52G
Manufacturer	LEMO
Category	Circular Connectors
Connector Type	Receptacle, Female Sockets
Number of Positions	4
Shell Size - Insert	M04
Termination	Solder Cup
Fastening Type	Push-Pull, Detent Lock
Mounting Type	Free Hanging (In-Line)
Contact Finish - Mating	Gold
Current Rating	8A
Operating Temperature Range	-50°C ~ 150°C
Cable Opening	0.157" ~ 0.205" (4.00mm ~ 5.20mm)
Ingress Protection	IP50 - Dust Protected
Shell Material	Polysulfone (PSU)
Insert Material	Polyetheretherketone (PEEK)
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the PRA.M0.4GL.LC52G is determined by strict alignment of the following critical parameters:

Connector Type & Configuration: Receptacle with female sockets, 4-position circular connector
Termination Method: Solder cup termination for direct PCB or cable assembly
Fastening Mechanism: Push-pull detent lock for secure mating
Mounting Style: Free hanging (in-line) orientation
Contact Finish: Gold-plated mating surfaces for corrosion resistance
Shell & Insert Materials: Polysulfone (PSU) shell with PEEK insert for mechanical and thermal stability
Environmental Rating: IP50 dust protection and operating temperature range compatibility
Compliance: ROHS3 compliance and REACH unaffected status

The substitute part K11MA7-P04LJG0-5270 (ODU MEDI-SNAP®) meets these core substitution criteria. Variations in current rating, maximum operating temperature, and contact material do not preclude substitution when the application requirements fall within the substitute part's specifications.

Parameter Comparison

Parameter	PRA.M0.4GL.LC52G (LEMO)	K11MA7-P04LJG0-5270 (ODU)	Compatibility Notes
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
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Identical
Contact Finish - Mating	Gold	Gold	Identical
Cable Opening	0.157" ~ 0.205" (4.00mm ~ 5.20mm)	0.157" ~ 0.205" (4.00mm ~ 5.20mm)	Identical
Ingress Protection	IP50 - Dust Protected	IP50 - Dust Protected	Identical
Shell Material	Polysulfone (PSU)	Polysulfone (PSU)	Identical
Insert Material	Polyetheretherketone (PEEK)	Polyetheretherketone (PEEK)	Identical
Current Rating	8A	10A	Substitute rated higher; compatible for 8A applications
Operating Temperature Range	-50°C ~ 150°C	-50°C ~ 120°C	Substitute has narrower upper limit; compatible for applications ≤120°C
Contact Material	Not specified	Brass	Substitute contact material specified
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Series	1P	ODU MEDI-SNAP®	Different series; functionally equivalent

Engineering Selection Recommendations

Both the PRA.M0.4GL.LC52G and K11MA7-P04LJG0-5270 are active production parts with ROHS3 compliance and REACH unaffected status, making them suitable for regulated applications in medical, industrial, and automotive sectors.

Selection Criteria:

Temperature Environment: For applications requiring sustained operation above 120°C, the PRA.M0.4GL.LC52G is the appropriate choice due to its 150°C maximum operating temperature rating.
Current Requirements: Both parts support the 8A current rating of the primary part. The K11MA7-P04LJG0-5270 offers additional margin with a 10A rating.
Supply Availability: The PRA.M0.4GL.LC52G has 887 units in stock; the K11MA7-P04LJG0-5270 has 805 units in stock.
Compliance & Certifications: Both parts meet identical regulatory requirements (ROHS3, REACH unaffected, EAR99 ECCN classification).

Frequently Asked Questions (FAQ)

Q: Can the K11MA7-P04LJG0-5270 be used as a direct replacement for the PRA.M0.4GL.LC52G?

A: Yes, for applications operating at temperatures up to 120°C and current levels up to 8A. The substitute part meets all critical mechanical and electrical parameters. If your application requires sustained operation above 120°C, the PRA.M0.4GL.LC52G is required.

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

A: The primary differences are the operating temperature maximum (150°C vs. 120°C), current rating (8A vs. 10A), and manufacturer series. All other parameters—connector type, position count, termination method, fastening mechanism, materials, and compliance status—are identical.

Q: Are both parts available in the same packaging?

A: The PRA.M0.4GL.LC52G packaging is listed as standard; the K11MA7-P04LJG0-5270 is supplied in bulk packaging. Both are suitable for production assembly.

Q: Do these connectors mate with the same plug connectors?

A: Both are 4-position circular receptacles with identical shell size (M04), fastening type (push-pull detent lock), and orientation (A). They are mechanically and electrically compatible with the same mating plug connectors.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS classifications.

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