M18-10FBK Equivalent & Substitute Parts

Part Overview

The M18-10FBK is a ring terminal connector manufactured by 3M, designed for crimp termination of 18-22 AWG wire to a #10 stud. This circular terminal features a brazed seam construction and tin-plated copper contact material. The product is active and maintains RoHS compliance with MSL 1 rating. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling component interchangeability in applications where the primary part is unavailable.

Substiute Parts

M18-10FBK

3MIn Stock: 1127M18-10FBK Datasheet

Current PartRFQ

P18-10FN-C

Panduit CorpIn Stock: 777P18-10FN-C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M18-10FBK is determined by the following critical parameters:

• Stud/Tab Size: Must be #10 stud to ensure mechanical fit and electrical connection integrity
• Wire Gauge Range: Must accommodate 18-22 AWG minimum; extended ranges are acceptable if they include this specification
• Termination Method: Must be crimp-type termination
• Contact Material & Finish: Copper with tin plating ensures equivalent electrical performance and corrosion resistance
• Insulation Type: Non-insulated construction maintains compatibility with the original application
• Mounting Configuration: Free hanging (in-line) orientation required for direct substitution

The identified substitute P18-10FN-C meets these criteria with the following considerations: it is a spade terminal rather than circular, but maintains all critical electrical and mechanical parameters including #10 stud compatibility, crimp termination, tin-plated copper construction, and non-insulated design. The wire gauge range of 16-22 AWG encompasses the original 18-22 AWG specification.

Parameter Comparison

Engineering Selection Recommendations

Both the M18-10FBK and P18-10FN-C maintain active product status and full regulatory compliance. The M18-10FBK carries RoHS compliance with MSL 1 rating, while the P18-10FN-C is ROHS3 compliant. Selection between these terminals should be based on the specific terminal geometry required by the application: circular versus spade configuration. Both terminals support identical stud sizes, wire gauge ranges, crimp termination, and tin-plated copper construction, ensuring equivalent electrical performance. The dimensional variance (length and width) reflects the geometric difference between terminal types and must be evaluated against physical space constraints in the assembly.

Frequently Asked Questions (FAQ)

Q: Can the P18-10FN-C spade terminal replace the M18-10FBK circular terminal?

A: Electrical compatibility is established through matching stud size (#10), wire gauge accommodation (16-22 AWG includes 18-22 AWG), crimp termination, and tin-plated copper construction. Physical compatibility depends on whether the application can accommodate a spade terminal geometry in place of a circular terminal. Dimensional differences exist: the spade terminal is 0.010" longer and 0.030" narrower.

Q: Are there wire gauge limitations when substituting?

A: The P18-10FN-C accommodates 16-22 AWG, which fully encompasses the M18-10FBK specification of 18-22 AWG. No wire gauge limitation exists for substitution in this direction.

Q: What is the significance of the tin contact finish?

A: Tin plating on both terminals provides equivalent corrosion resistance and electrical conductivity. This matching specification ensures consistent performance in equivalent environmental conditions.

Q: Does the spade terminal opening dimension affect substitution?

A: The P18-10FN-C spade terminal has a tongue inside opening of 0.200" (5.08mm), which accommodates the #10 stud size. This dimension is provided for reference but does not affect the substitution decision when stud size compatibility is confirmed.

Q: Are both terminals suitable for the same packaging and inventory considerations?

A: The M18-10FBK is available in 1051 pieces with unspecified packaging, while the P18-10FN-C is available in 700 pieces in bulk packaging. Packaging format may influence procurement decisions based on application volume requirements.