PRG.M0.4GL.LC52Z Equivalent & Substitute Parts

Part Overview

The PRG.M0.4GL.LC52Z is a 4-position circular connector receptacle manufactured by LEMO, featuring female sockets with solder cup termination and gold-plated contacts. 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 761 units in stock. Equivalent and substitute parts are identified to provide procurement flexibility, ensure supply chain continuity, and support design standardization across compatible applications.

Substiute Parts

PRG.M0.4GL.LC52Z

LEMOIn Stock: 852PRG.M0.4GL.LC52Z Datasheet

Current PartRFQ

K21M07-P04LJG0-527S

ODUIn Stock: 859K21M07-P04LJG0-527S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PRG.M0.4GL.LC52Z is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Connector type: Receptacle, Female Sockets
• Number of positions: 4
• Termination method: Solder Cup
• Fastening type: Push-Pull, Detent Lock
• Contact finish: Gold
• Shell material: Polysulfone (PSU)
• Insert material: Polyetheretherketone (PEEK)
• Cable opening range: 0.157" ~ 0.205" (4.00mm ~ 5.20mm)
• Ingress protection: IP50 - Dust Protected
• RoHS compliance: ROHS3 Compliant

Allowable Variation Parameters:

• Manufacturer and part number (different source)
• Shell size designation (M04 vs. equivalent numeric designation)
• Current rating (equal or greater capacity)
• Operating temperature range (equal or greater range)
• Mounting orientation designation

The substitute part K21M07-P04LJG0-527S from ODU meets all mandatory matching criteria and qualifies as a direct equivalent for the PRG.M0.4GL.LC52Z.

Parameter Comparison

Engineering Selection Recommendations

Both the PRG.M0.4GL.LC52Z and K21M07-P04LJG0-527S are active production parts with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial, medical, and automotive applications.

The PRG.M0.4GL.LC52Z offers an extended operating temperature range of -50°C to 150°C, making it suitable for applications requiring higher temperature performance. The K21M07-P04LJG0-527S operates within -50°C to 120°C and provides a higher current rating of 10A compared to the 8A rating of the LEMO part. The ODU substitute includes integrated strain relief in addition to the backshell feature.

Selection between these parts should be based on specific application requirements: choose the LEMO PRG.M0.4GL.LC52Z when maximum temperature performance is required; select the ODU K21M07-P04LJG0-527S when higher current capacity and strain relief features are prioritized within the -50°C to 120°C operating window.

Frequently Asked Questions (FAQ)

Q: Can the K21M07-P04LJG0-527S be used as a direct replacement for PRG.M0.4GL.LC52Z in all applications?

A: The K21M07-P04LJG0-527S qualifies as a functional equivalent for applications operating within -50°C to 120°C. Applications requiring operation above 120°C must use the PRG.M0.4GL.LC52Z to maintain the full -50°C to 150°C temperature specification.

Q: What are the key compatibility factors for these circular connectors?

A: Compatibility is ensured through matching connector type (receptacle, female sockets), position count (4), termination method (solder cup), fastening mechanism (push-pull detent lock), contact finish (gold), shell and insert materials (PSU and PEEK), and cable opening dimensions (4.00mm ~ 5.20mm).

Q: Does the higher current rating of the substitute part affect compatibility?

A: No. The K21M07-P04LJG0-527S 10A rating exceeds the PRG.M0.4GL.LC52Z 8A rating, providing additional capacity margin. This does not compromise compatibility and may benefit applications with current demands near the 8A threshold.

Q: Are both parts suitable for medical applications?

A: Both the PRG.M0.4GL.LC52Z and K21M07-P04LJG0-527S are listed for medical applications. Both maintain ROHS3 compliance and REACH unaffected status required for medical device manufacturing.

Q: What is the significance of the strain relief feature on the substitute part?

A: The K21M07-P04LJG0-527S includes integrated strain relief in addition to the backshell. This feature provides additional mechanical protection at the cable entry point and does not affect electrical or mechanical compatibility with the LEMO part.