MH18-6R/LK Ring Terminal Connector Equivalent & Substitute Parts

Part Overview

The MH18-6R/LK is a ring terminal connector manufactured by 3M, classified as a circular terminal designed for 18-22 AWG wire gauges with a #6 stud connection. This insulated crimp terminal features a brazed seam construction and is part of the Scotchlok™ series. The product is currently active and maintains RoHS compliance. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, supply chain considerations, or application-specific requirements.

Substiute Parts

MH18-6R/LK

3MIn Stock: 842MH18-6R/LK Datasheet

Current PartRFQ

PH18-6R-Q

Panduit CorpIn Stock: 1771PH18-6R-Q Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MH18-6R/LK is determined by strict alignment of the following critical parameters:

• Terminal type must be circular
• Stud size must be #6
• Wire gauge range must be 18-22 AWG
• Termination method must be crimp
• Insulation must be heat shrink type
• Contact material must be copper-based
• Contact finish must be tin
• Color must be red
• Mounting configuration must be free hanging (in-line)
• Brazed seam construction must be present

The substitute part PH18-6R-Q meets all mandatory electrical and mechanical criteria for direct substitution in applications requiring the MH18-6R/LK specification.

Parameter Comparison

Engineering Selection Recommendations

Both the MH18-6R/LK and PH18-6R-Q are active products with full regulatory compliance. The MH18-6R/LK maintains RoHS compliance, while the PH18-6R-Q achieves ROHS3 compliance, indicating enhanced environmental standards. Both parts are REACH unaffected and classified under the same ECCN and HTSUS codes, confirming equivalent regulatory standing.

Selection between these parts should be based on availability, supply chain requirements, and any application-specific preferences regarding manufacturer series designation. Both parts satisfy identical electrical and mechanical specifications for 18-22 AWG ring terminal applications with #6 stud connections.

Frequently Asked Questions (FAQ)

Q: Can PH18-6R-Q replace MH18-6R/LK in existing designs?

A: Yes. Both parts share identical terminal type, stud size, wire gauge range, crimp termination, heat shrink insulation, copper contact material with tin finish, and brazed seam construction. The parts are mechanically and electrically equivalent.

Q: Are there dimensional differences between these parts?

A: Minor dimensional variations exist. The MH18-6R/LK has a thickness of 0.030" (0.76mm) and outer edge width of 0.310" (7.87mm) with overall length of 1.000" (25.40mm). The PH18-6R-Q has an outer edge width of 0.250" (6.35mm) and overall length of 1.050" (26.67mm). These variations do not affect functional compatibility in standard applications.

Q: What is the difference in RoHS compliance levels?

A: The MH18-6R/LK is RoHS compliant, while the PH18-6R-Q is ROHS3 compliant. ROHS3 represents a more recent and stringent environmental standard. Both meet regulatory requirements for their respective markets.

Q: Are both parts available in the same packaging?

A: Both parts are supplied in bulk packaging. The MH18-6R/LK has 797 pieces in stock, while the PH18-6R-Q has 1676 pieces in stock.

Q: What insulation material is used in both parts?

A: Both parts use polyolefin as the insulation material with heat shrink application, providing consistent electrical and thermal performance.