PAA.M0.4GL.AC52G Equivalent & Substitute Parts

Part Overview

The PAA.M0.4GL.AC52G is a 4-position circular connector plug with male pins and solder cup termination, manufactured by LEMO. This connector is designed for applications requiring reliable circular connection interfaces in automotive, industrial, medical, and testing equipment environments. The part is currently active in production with 682 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling component procurement flexibility while maintaining functional compatibility.

Key Parameters

Parameter	Value
Connector Type	Plug, Male Pins
Number of Positions	4
Shell Size - Insert	M04
Termination	Solder Cup
Fastening Type	Push-Pull, Detent Lock
Shell Material	Polysulfone (PSU)
Contact Finish - Mating	Gold
Current Rating	8A
Cable Opening	0.157" ~ 0.205" (4.00mm ~ 5.20mm)
Operating Temperature	-50°C ~ 150°C
Ingress Protection	IP50 - Dust Protected
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the PAA.M0.4GL.AC52G is determined by strict alignment of the following critical parameters:

Connector Type & Position Count: Must be plug with male pins in 4-position configuration
Termination Method: Solder cup termination required
Shell Material & Finish: Polysulfone (PSU) shell with gold contact finish
Fastening Mechanism: Push-pull connection type
Ingress Protection: IP50 dust protection rating
Mounting Configuration: Free hanging (in-line) orientation
Regulatory Compliance: ROHS3 compliant status

The substitute part S11MA7-P04MJG0-5270 (ODU MEDI-SNAP®) meets these core substitution criteria. Variations in current rating (10A vs. 8A), operating temperature range (-50°C ~ 120°C vs. -50°C ~ 150°C), and shell size designation (1 vs. M04) represent acceptable parameter differences within the substitute relationship, as the substitute maintains or exceeds the primary electrical and mechanical interface requirements.

Parameter Comparison

Parameter	PAA.M0.4GL.AC52G (LEMO)	S11MA7-P04MJG0-5270 (ODU)
Connector Type	Plug, Male Pins	Plug, Male Pins
Number of Positions	4	4
Termination	Solder Cup	Solder Cup
Fastening Type	Push-Pull, Detent Lock	Push-Pull
Shell Material	Polysulfone (PSU)	Polysulfone (PSU)
Contact Finish - Mating	Gold	Gold
Color	Gray	Gray
Current Rating (Amps)	8A	10A
Cable Opening	0.157" ~ 0.205" (4.00mm ~ 5.20mm)	0.157" ~ 0.205" (4.00mm ~ 5.20mm)
Operating Temperature	-50°C ~ 150°C	-50°C ~ 120°C
Ingress Protection	IP50 - Dust Protected	IP50 - Dust Protected
Backshell Material	Polysulfone (PSU)	Polysulfone (PSU)
Insert Material	Polyetheretherketone (PEEK)	Polyetheretherketone (PEEK)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8536.69.4020	8536.69.4020

Engineering Selection Recommendations

Both the PAA.M0.4GL.AC52G and S11MA7-P04MJG0-5270 are active production components with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial, medical, and automotive applications. The substitute part offers a higher current rating (10A) compared to the original specification (8A), providing additional electrical capacity margin. The operating temperature range of the substitute (-50°C ~ 120°C) is narrower than the original (-50°C ~ 150°C); selection should account for application-specific temperature requirements. Both connectors maintain identical mechanical interface parameters, cable opening dimensions, and ingress protection ratings, ensuring physical and functional compatibility in equivalent mounting configurations.

Frequently Asked Questions (FAQ)

Q: Can S11MA7-P04MJG0-5270 be used as a direct replacement for PAA.M0.4GL.AC52G?

A: Yes, within the constraints of your application's operating temperature range. The substitute maintains identical connector type, position count, termination method, shell material, contact finish, and ingress protection rating. The higher current rating (10A vs. 8A) is compatible with applications designed for 8A operation.

Q: What is the difference in operating temperature range between these parts?

A: The PAA.M0.4GL.AC52G operates from -50°C to 150°C, while the S11MA7-P04MJG0-5270 operates from -50°C to 120°C. Applications requiring operation above 120°C must use the original LEMO part.

Q: Are the cable opening dimensions identical?

A: Yes. Both connectors accept cable diameters of 0.157" to 0.205" (4.00mm to 5.20mm), ensuring compatible backshell and strain relief configurations.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 and HTSUS 8536.69.4020.

Q: What is the difference in fastening mechanism?

A: The PAA.M0.4GL.AC52G includes a detent lock feature in addition to push-pull fastening. The S11MA7-P04MJG0-5270 uses push-pull fastening. Applications requiring detent lock functionality should specify the original LEMO part.

Q: Are the insert materials the same?

A: Yes. Both connectors use Polyetheretherketone (PEEK) insert material, ensuring equivalent dielectric and mechanical properties.

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