MU18-6FLK Equivalent & Substitute Parts

Part Overview

The MU18-6FLK is a 6 stud spade terminal connector manufactured by 3M, designed for crimp termination of 18-22 AWG wire. This non-insulated connector features a tin contact finish on copper (ETP) material and is part of the Scotchlok™ series. The component is actively produced and RoHS compliant, making it suitable for applications requiring reliable electrical connections in standard industrial and commercial environments. Substitute parts may be required due to inventory availability, supply chain considerations, or specific application requirements within the defined electrical and mechanical parameters.

Substiute Parts

MU18-6FLK

3MIn Stock: 1819MU18-6FLK Datasheet

Current PartRFQ

P18-6LF-M

Panduit CorpIn Stock: 10013P18-6LF-M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MU18-6FLK with the P18-6LF-M is based on equivalence across the following critical parameters:

• Stud/Tab Size: Both parts feature a 6 stud configuration, ensuring mechanical compatibility with mating connectors and mounting hardware.
• Wire Gauge: Both accommodate 18-22 AWG wire, maintaining electrical performance and current-carrying capacity.
• Termination Type: Both use crimp termination, allowing use of identical tooling and assembly processes.
• Terminal Type: Both employ spring, snap mechanisms for secure connection.
• Insulation: Both are non-insulated, suitable for applications where insulation is not required.
• Contact Material & Finish: Both use copper with tin finish, providing equivalent electrical conductivity and corrosion resistance.
• Mounting Type: Both are free hanging (in-line) configurations.
• Length - Overall: Both measure 0.680" (17.27mm), ensuring dimensional compatibility in circuit board layouts and connector assemblies.
• Compliance: Both are RoHS compliant and REACH unaffected, meeting regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the MU18-6FLK and P18-6LF-M are active production components with equivalent electrical and mechanical specifications for 18-22 AWG crimp spade terminals with 6 stud configuration. Selection between these parts should be based on:

• Regulatory Compliance: Both parts meet RoHS and REACH requirements. The P18-6LF-M carries ROHS3 certification, while the MU18-6FLK is RoHS compliant. Both are suitable for applications requiring regulatory adherence.
• Availability: Inventory levels differ; selection may depend on supply chain requirements and lead times.
• Seam Construction: The MU18-6FLK features a butted seam, while the P18-6LF-M uses a brazed seam. Both constructions are acceptable for the specified wire gauge and current applications.
• Dimensional Tolerance: The width difference (0.250" vs. 0.270") is minor and does not affect functional compatibility in standard applications, though verification in space-constrained designs is warranted.

Frequently Asked Questions (FAQ)

Q: Can the P18-6LF-M replace the MU18-6FLK in existing assemblies?

A: Yes, the P18-6LF-M is functionally equivalent for applications requiring 18-22 AWG crimp spade terminals with 6 stud configuration. Both parts share identical wire gauge, termination method, terminal type, and overall length. The minor width difference (0.020") does not affect electrical performance or standard mechanical compatibility.

Q: Are there differences in seam construction between these parts?

A: Yes. The MU18-6FLK uses a butted seam, while the P18-6LF-M uses a brazed seam. Both construction methods are suitable for the specified wire gauge and provide reliable electrical connections.

Q: Do both parts meet the same regulatory standards?

A: Both parts are RoHS compliant and REACH unaffected. The P18-6LF-M carries ROHS3 certification. Both are classified under ECCN EAR99 and HTSUS 8536.90.4000, meeting equivalent regulatory requirements.

Q: What is the significance of the width difference between these parts?

A: The MU18-6FLK measures 0.250" (6.35mm) in width, while the P18-6LF-M measures 0.270" (6.86mm). This 0.020" difference is minor and does not affect standard applications. In space-constrained designs, dimensional verification is recommended.

Q: Are the contact materials equivalent?

A: Both parts use copper with tin finish. The MU18-6FLK specifies copper ETP (Electrolytic Tough Pitch), while the P18-6LF-M specifies copper. Both provide equivalent electrical conductivity and corrosion resistance for the intended application.

Q: Can the same crimping tools be used for both parts?

A: Yes. Both parts are designed for crimp termination of 18-22 AWG wire and use identical terminal type (spring, snap). Standard crimping tools for this wire gauge and stud size are compatible with both parts.