MV18-8FLK Equivalent & Substitute Parts

Part Overview

The MV18-8FLK is a red insulated spade terminal connector manufactured by 3M, designed for crimp termination on 18-22 AWG wire. This component belongs to the Scotchlok™ series and features a spring snap terminal type with an 8 stud configuration. The part is currently active in production with full RoHS compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical and mechanical parameters align with application requirements, enabling component interchangeability in circuit assembly and wire termination applications.

Substiute Parts

MV18-8FLK

3MIn Stock: 1068MV18-8FLK Datasheet

Current PartRFQ

52950-1

TE Connectivity AMP ConnectorsIn Stock: 1029552950-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MV18-8FLK is determined by alignment of the following critical parameters:

• Stud/Tab Size: Must be 8 stud configuration to ensure mechanical fit with mating connectors
• Terminal Type: Spring snap terminals provide equivalent functional performance
• Wire Gauge Range: Acceptable range is 16-22 AWG, which encompasses the primary 18-22 AWG specification
• Termination Method: Crimp termination is the required connection type
• Insulation: Insulated terminals with vinyl or PVC material maintain electrical isolation
• Color Coding: Red insulation indicates identical circuit identification
• Contact Material & Finish: Tin-plated copper or brass contacts provide equivalent electrical conductivity and corrosion resistance
• Compliance: RoHS and REACH status must meet or exceed the original specification

The substitute part 52950-1 (TE Connectivity AMP Connectors, Plasti-Grip series) meets all critical substitution criteria.

Parameter Comparison

Engineering Selection Recommendations

Both MV18-8FLK and 52950-1 are active production components with full regulatory compliance. The MV18-8FLK maintains RoHS compliance, while the 52950-1 achieves ROHS3 compliance, representing an enhanced environmental standard. Both components carry MSL rating 1 with unlimited moisture sensitivity tolerance, suitable for standard assembly environments.

The 52950-1 supports an extended wire gauge range (16-22 AWG versus 18-22 AWG), providing additional flexibility for applications requiring 16 AWG termination. Dimensional variations exist in outer width (0.375" versus 0.300") and insulation diameter specifications; these differences do not affect stud compatibility but may impact board layout spacing in constrained designs.

Selection between these parts should be based on wire gauge requirements, available inventory, and specific mechanical envelope constraints of the application.

Frequently Asked Questions (FAQ)

Q: Can 52950-1 be used as a direct replacement for MV18-8FLK?

A: Yes, for applications using 18-22 AWG wire. The 52950-1 is mechanically and electrically compatible, with identical stud size, terminal type, and crimp termination method. Both are active production components with equivalent compliance ratings.

Q: What is the difference in wire gauge capability?

A: The MV18-8FLK is rated for 18-22 AWG, while the 52950-1 supports 16-22 AWG. If your application requires 16 AWG termination, only the 52950-1 is suitable. For 18-22 AWG applications, both parts are interchangeable.

Q: Are there dimensional differences that affect compatibility?

A: Yes. The MV18-8FLK has an outer width of 0.300" (7.62mm), while the 52950-1 measures 0.375" (9.53mm). The insulation diameter also differs: 0.145" (3.68mm) for MV18-8FLK versus 0.105"-0.140" (2.67-4.66mm) for 52950-1. These variations do not affect stud compatibility but may impact board layout spacing. Verify mechanical clearance in your specific application.

Q: What is the difference in contact material?

A: The MV18-8FLK uses copper (ETP), while the 52950-1 uses brass. Both materials are tin-plated and provide equivalent electrical conductivity and corrosion resistance for standard circuit applications.

Q: Do both parts meet RoHS requirements?

A: Yes. The MV18-8FLK is RoHS Compliant, and the 52950-1 is ROHS3 Compliant. The ROHS3 designation represents an enhanced environmental standard. Both meet regulatory requirements for restricted substance compliance.

Q: What packaging formats are available?

A: The MV18-8FLK is supplied in Bulk packaging, while the 52950-1 is supplied in Cut Tape (CT) format. Packaging selection may affect handling, storage, and assembly line integration.