PAA.M0.4GL.AC39J Circular Connector Plug - Equivalent & Substitute Parts

Part Overview

The PAA.M0.4GL.AC39J is a 4-position circular connector plug manufactured by LEMO, featuring male pins with solder cup termination and gold-plated contacts. This connector is designed for free-hanging, in-line applications requiring push-pull detent lock fastening. The part is currently active in production with 679 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications where the primary part may be unavailable or where alternative sourcing is required.

Substiute Parts

PAA.M0.4GL.AC39J

LEMOIn Stock: 727PAA.M0.4GL.AC39J Datasheet

Current PartRFQ

S11MA7-P04MJG0-3940

ODUIn Stock: 925S11MA7-P04MJG0-3940 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PAA.M0.4GL.AC39J is determined by strict alignment of the following parameters:

• Connector type (Plug, Male Pins)
• Number of positions (4)
• Termination method (Solder Cup)
• Contact finish (Gold plating)
• Shell material (Polysulfone PSU)
• Ingress protection rating (IP50)
• Mounting configuration (Free Hanging, In-Line)
• Fastening mechanism (Push-Pull)
• Cable opening range (0.106" ~ 0.154")
• Insert material (Polyetheretherketone PEEK)
• Compliance certifications (ROHS3, REACH Unaffected)

The substitute part S11MA7-P04MJG0-3940 (ODU MEDI-SNAP®) meets all critical substitution criteria. Variations in current rating, operating temperature range, and contact material do not preclude substitution when the application requirements fall within the substitute part's specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the PAA.M0.4GL.AC39J and S11MA7-P04MJG0-3940 are active production parts with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial, medical, and automotive applications.

The PAA.M0.4GL.AC39J provides an operating temperature range of -50°C to 150°C with an 8A current rating. The S11MA7-P04MJG0-3940 substitute offers a 10A current rating with an operating temperature range of -50°C to 120°C. Selection between these parts should be based on the specific application's thermal and current requirements. If the application requires operation above 120°C, the primary part is necessary. If the application operates within -50°C to 120°C and requires current capacity up to 10A, the substitute part is functionally equivalent.

Both connectors feature identical mechanical interfaces, contact finishes, shell materials, and ingress protection ratings, ensuring physical and electrical compatibility within their respective operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the S11MA7-P04MJG0-3940 be used as a direct replacement for the PAA.M0.4GL.AC39J?

A: Yes, provided the application operates within the substitute part's temperature range (-50°C to 120°C) and current requirements do not exceed 10A. Both parts share identical connector type, pin count, termination method, contact finish, shell material, and ingress protection rating.

Q: What is the difference in current rating between these parts?

A: The PAA.M0.4GL.AC39J is rated for 8A, while the S11MA7-P04MJG0-3940 is rated for 10A. The substitute part exceeds the primary part's current capacity, making it suitable for applications requiring up to 10A.

Q: Are there temperature limitations when substituting?

A: Yes. The PAA.M0.4GL.AC39J operates from -50°C to 150°C, while the S11MA7-P04MJG0-3940 operates from -50°C to 120°C. Applications requiring operation above 120°C must use the primary part.

Q: Do both parts have the same physical dimensions and cable opening specifications?

A: Yes. Both connectors feature identical cable opening ranges (0.106" to 0.154" or 2.70mm to 3.90mm) and are designed for free-hanging, in-line mounting with identical shell sizes and insert materials.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the PAA.M0.4GL.AC39J and S11MA7-P04MJG0-3940 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the difference in fastening mechanisms?

A: The PAA.M0.4GL.AC39J features push-pull with detent lock fastening, while the S11MA7-P04MJG0-3940 features push-pull fastening. Both mechanisms provide secure mating and are compatible for applications requiring push-pull connection.

Q: Can these connectors be used interchangeably in medical applications?

A: Both parts are suitable for medical applications. Selection should be based on the specific application's operating temperature and current requirements, as outlined in the parameter comparison table.