MU24-4RK Equivalent & Substitute Parts

Part Overview

The MU24-4RK is a ring terminal connector manufactured by 3M, designed for circular stud applications with 24-26 AWG wire gauge capacity. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing procurement and system maintenance. The part belongs to the Scotchlok™ series and features a non-insulated copper terminal with tin finish suitable for free-hanging in-line mounting applications.

Substiute Parts

MU24-4RK

3MIn Stock: 1024MU24-4RK Datasheet

Current PartRFQ

P22-4R-M

Panduit CorpIn Stock: 2496P22-4R-M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MU24-4RK is determined by the following critical parameters:

• Terminal Type & Stud Size: Both main and substitute parts must be circular terminals with 4 stud configuration to ensure mechanical compatibility with existing mounting points.
• Wire Gauge Range: The substitute must accommodate the 24-26 AWG specification. Extended wire gauge ranges (such as 22-26 AWG) are acceptable as they encompass the original specification.
• Termination Method: Crimp termination is required for process compatibility.
• Contact Material & Finish: Copper with tin finish ensures electrical performance and corrosion resistance equivalent to the original.
• Insulation Status: Non-insulated configuration must be maintained for applications requiring direct conductor contact.
• Mounting Configuration: Free hanging in-line mounting type must be preserved.

The substitute part P22-4R-M meets all substitution criteria while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The P22-4R-M from Panduit Corp is the qualified substitute for the obsolete MU24-4RK. Selection is based on the following engineering factors:

• Functional Equivalence: Both parts satisfy the core requirements of circular 4-stud ring terminal connectors with crimp termination for 24-26 AWG applications.
• Product Status: P22-4R-M maintains active product status with confirmed inventory availability (2442 pcs), ensuring long-term procurement viability.
• Compliance Alignment: P22-4R-M is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements. Both parts share identical ECCN (EAR99) and HTSUS (8536.90.4000) classifications.
• Mechanical Compatibility: Dimensional variations (thickness reduction and length increase) fall within acceptable tolerances for free-hanging in-line applications and do not compromise stud interface compatibility.
• Material & Electrical Performance: Copper construction with tin finish provides equivalent electrical conductivity and corrosion resistance.

Frequently Asked Questions (FAQ)

Q: Can P22-4R-M directly replace MU24-4RK in existing assemblies?

A: Yes. Both parts are circular 4-stud ring terminals with crimp termination, non-insulated copper construction, and tin finish. The wire gauge range of P22-4R-M (22-26 AWG) encompasses the original specification (24-26 AWG). Dimensional differences are minor and do not affect stud interface compatibility.

Q: What is the significance of the extended wire gauge range in P22-4R-M?

A: The P22-4R-M accommodates 22-26 AWG, which includes the original 24-26 AWG specification. This extended range provides design flexibility for future applications without compromising compatibility with existing 24-26 AWG wire specifications.

Q: Are there compliance or certification differences between the two parts?

A: Both parts are REACH unaffected and share identical trade classifications (ECCN EAR99, HTSUS 8536.90.4000). P22-4R-M carries RoHS3 compliance certification, reflecting current regulatory standards. The MU24-4RK is obsolete and no longer subject to active compliance tracking.

Q: How do the dimensional differences affect installation?

A: The P22-4R-M is thinner (0.020" vs. 0.030") and slightly longer (0.520" vs. 0.450"). These variations are within acceptable tolerances for free-hanging in-line mounting and do not impact the 4-stud interface. Width dimensions are equivalent (5.20mm vs. 5.08mm).

Q: What packaging considerations apply to P22-4R-M?

A: P22-4R-M is supplied in bulk packaging with 2442 pcs available in inventory, compared to the MU24-4RK which is obsolete. Bulk packaging is standard for terminal connectors and does not affect component performance or compatibility.