PRG.M0.4GL.LC39Z Equivalent & Substitute Parts

Part Overview

The PRG.M0.4GL.LC39Z 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 maintains active product status with 871 units in current inventory. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements permit equivalent connector configurations.

Substiute Parts

PRG.M0.4GL.LC39Z

LEMOIn Stock: 956PRG.M0.4GL.LC39Z Datasheet

Current PartRFQ

K21M07-P04LJG0-397S

ODUIn Stock: 993K21M07-P04LJG0-397S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PRG.M0.4GL.LC39Z is determined by the following critical parameters:

• Connector Type & Position Count: Receptacle configuration with 4 female sockets
• Termination Method: Solder cup termination for direct PCB or cable integration
• Fastening Mechanism: Push-pull detent lock coupling system
• Shell Material & Contact Finish: Polysulfone shell with gold-plated mating contacts
• Ingress Protection: IP50 dust protection rating
• Electrical Performance: Current rating and operating temperature range
• Regulatory Compliance: ROHS3 compliance and REACH unaffected status

The identified substitute part K21M07-P04LJG0-397S (ODU MEDI-SNAP®) meets these core substitution criteria across all critical parameters, enabling direct functional replacement in equivalent circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the PRG.M0.4GL.LC39Z and K21M07-P04LJG0-397S maintain active product status with full ROHS3 compliance and REACH unaffected certification, qualifying both for current design implementations.

The PRG.M0.4GL.LC39Z provides extended operating temperature capability to 150°C, making it the preferred selection for applications requiring sustained high-temperature operation. The K21M07-P04LJG0-397S offers increased current capacity at 10A versus 8A, suitable for higher-power signal transmission requirements within its -50°C to 120°C operating window.

Selection between these parts should be based on specific application thermal and electrical requirements. Both connectors are suitable for automotive, industrial, medical, and testing equipment applications where push-pull detent lock coupling and solder cup termination are specified.

Frequently Asked Questions (FAQ)

Q: Can the K21M07-P04LJG0-397S directly replace the PRG.M0.4GL.LC39Z in existing designs?

A: Yes, the substitute part maintains identical connector type, position count, termination method, fastening mechanism, shell material, contact finish, cable opening dimensions, and ingress protection rating. Compatibility is confirmed across all critical mechanical and electrical interfaces.

Q: What are the differences in electrical performance between these parts?

A: The K21M07-P04LJG0-397S is rated for 10A current capacity compared to 8A for the PRG.M0.4GL.LC39Z. The PRG.M0.4GL.LC39Z supports extended operating temperatures to 150°C, while the substitute part operates to 120°C maximum.

Q: Are both parts suitable for medical device applications?

A: Both connectors list medical applications within their specified use cases and maintain ROHS3 compliance. Medical device integration requires validation against specific application requirements and regulatory standards applicable to the end product.

Q: What is the significance of the shell material being Polysulfone (PSU)?

A: Polysulfone provides chemical resistance, dimensional stability across the operating temperature range, and mechanical strength suitable for industrial and medical environments. Both parts use identical PSU shell material.

Q: How do the packaging options differ?

A: The PRG.M0.4GL.LC39Z is supplied in standard packaging, while the K21M07-P04LJG0-397S is available in bulk packaging. Packaging selection should align with procurement volume and inventory management requirements.

Q: Are there any compliance or certification differences?

A: Both parts maintain identical ROHS3 compliance status, REACH unaffected designation, and unlimited moisture sensitivity level (MSL 1). No compliance differentiation exists between these parts.