PAA.M0.9GL.AC52N Equivalent & Substitute Parts

Part Overview

The PAA.M0.9GL.AC52N is a 9-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 629 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling component interchangeability in system designs.

Key Parameters

Parameter	Value
Connector Type	Plug, Male Pins
Number of Positions	9
Shell Size - Insert	M09
Termination	Solder Cup
Fastening Type	Push-Pull, Detent Lock
Mounting Type	Free Hanging (In-Line)
Shell Material	Polysulfone (PSU)
Contact Finish - Mating	Gold
Ingress Protection	IP50 - Dust Protected
Current Rating	3A
Cable Opening	0.157" ~ 0.205" (4.00mm ~ 5.20mm)
Operating Temperature	-50°C ~ 150°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the PAA.M0.9GL.AC52N is determined by strict alignment of the following critical parameters:

Connector Type & Position Count: Must be plug with male pins in 9-position configuration
Termination Method: Solder cup termination required for direct assembly compatibility
Shell Material & Finish: Polysulfone (PSU) shell with gold contact finish for environmental and electrical performance
Mounting Configuration: Free hanging (in-line) orientation with push-pull fastening mechanism
Ingress Protection: IP50 dust protection rating for sealed operation
Operating Temperature Range: Must support -50°C minimum and 150°C maximum operational limits
Electrical Performance: Current rating and cable opening dimensions must be compatible with system requirements
Regulatory Compliance: ROHS3 compliance and MSL 1 rating required

The substitute part S11MA7-P09MCC0-5280 (ODU MEDI-SNAP®) meets these core substitution criteria with compatible electrical and mechanical specifications.

Parameter Comparison

Parameter	PAA.M0.9GL.AC52N (LEMO)	S11MA7-P09MCC0-5280 (ODU)	Compatibility Status
Connector Type	Plug, Male Pins	Plug, Male Pins	Compatible
Number of Positions	9	9	Compatible
Termination	Solder Cup	Solder Cup	Compatible
Fastening Type	Push-Pull, Detent Lock	Push-Pull	Compatible
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Compatible
Shell Material	Polysulfone (PSU)	Polysulfone (PSU)	Compatible
Contact Finish - Mating	Gold	Gold	Compatible
Ingress Protection	IP50 - Dust Protected	IP50 - Dust Protected	Compatible
Current Rating (Amps)	3A	2.75A	Substitute rated lower
Cable Opening	0.157" ~ 0.205" (4.00mm ~ 5.20mm)	0.157" ~ 0.205" (4.00mm ~ 5.20mm)	Compatible
Operating Temperature	-50°C ~ 150°C	-50°C ~ 120°C	Substitute range narrower
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Compatible
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Compatible

Engineering Selection Recommendations

Both the PAA.M0.9GL.AC52N and S11MA7-P09MCC0-5280 are active production parts with ROHS3 compliance and MSL 1 rating, meeting regulatory requirements for industrial, medical, and automotive applications.

The primary selection considerations are:

PAA.M0.9GL.AC52N (LEMO) is specified when:

Operating temperature must reach 150°C maximum
Current requirements approach or exceed 2.75A
Detent lock fastening mechanism is required

S11MA7-P09MCC0-5280 (ODU MEDI-SNAP®) is suitable when:

Operating temperature range of -50°C to 120°C is acceptable
Current requirements do not exceed 2.75A
ODU MEDI-SNAP® series integration is preferred for system architecture

Both parts share identical mechanical interfaces, shell materials, contact finishes, and ingress protection ratings, supporting direct substitution within the specified electrical and thermal constraints.

Frequently Asked Questions (FAQ)

Q: Can S11MA7-P09MCC0-5280 replace PAA.M0.9GL.AC52N in all applications?

A: Substitution is valid when the application operates within -50°C to 120°C temperature range and current draw does not exceed 2.75A. Applications requiring 150°C operation or higher current ratings require the original PAA.M0.9GL.AC52N specification.

Q: Are the connector interfaces mechanically compatible?

A: Yes. Both parts feature identical 9-position M09 shell size, push-pull fastening, free hanging mounting, and cable opening dimensions (0.157" ~ 0.205" / 4.00mm ~ 5.20mm), enabling direct mechanical interchangeability.

Q: What are the key electrical differences?

A: The PAA.M0.9GL.AC52N is rated for 3A current, while the S11MA7-P09MCC0-5280 is rated for 2.75A. Both use gold contact finish and support identical cable opening specifications.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both parts are ROHS3 compliant, carry MSL 1 (Unlimited) moisture sensitivity rating, and are REACH unaffected, meeting equivalent regulatory requirements for industrial and medical applications.

Q: What is the difference in operating temperature range?

A: The PAA.M0.9GL.AC52N operates from -50°C to 150°C, while the S11MA7-P09MCC0-5280 operates from -50°C to 120°C. Applications requiring sustained operation above 120°C must use the original LEMO part.

Q: Are solder cup terminations identical between both parts?

A: Yes. Both parts use solder cup termination, supporting identical assembly and rework procedures for cable attachment.

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