BS-31-8-W Equivalent & Substitute Parts

Part Overview

The BS-31-8-W is a 3M spade terminal connector designed for crimp termination of 18-22 AWG wire onto an 8 stud. This non-insulated, tin-plated copper terminal features a brazed seam construction and is classified as Active product status. The part is ROHS3 compliant and maintains MSL 1 rating, indicating unlimited moisture sensitivity tolerance. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring 8 stud spade terminal connectors within the specified wire gauge range.

Substiute Parts

BS-31-8-W

3MIn Stock: 1141BS-31-8-W Datasheet

Current PartRFQ

P18-8F-C

Panduit CorpIn Stock: 1254P18-8F-C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BS-31-8-W is determined by the following critical parameters:

• Stud/Tab Size: Must be 8 stud to ensure mechanical compatibility with mating connectors and circuit board receptacles
• Wire Gauge Range: Must accommodate 18-22 AWG minimum; wire gauges within or overlapping this range are acceptable
• Termination Method: Must be crimp-type to maintain compatibility with existing assembly processes and tooling
• Contact Material & Finish: Copper with tin plating ensures electrical conductivity and corrosion resistance equivalent to the original specification
• Insulation Status: Non-insulated terminals are functionally equivalent; insulation type does not affect substitution eligibility for this category
• Regulatory Compliance: ROHS3 compliance is required for equivalent substitution in regulated applications

The P18-8F-C from Panduit Corp meets all critical substitution criteria. The wire gauge range of 16-22 AWG encompasses the original 18-22 AWG specification, providing broader compatibility. Both parts share identical stud size, termination method, contact material, and regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the BS-31-8-W and P18-8F-C are Active product status components with ROHS3 compliance, making them suitable for equivalent substitution in regulated applications. Selection between these parts should be based on:

• Availability: The P18-8F-C offers 1155 pcs in stock versus 1058 pcs for the BS-31-8-W
• Wire Gauge Coverage: The P18-8F-C accommodates 16-22 AWG, providing compatibility with 16 AWG wire in addition to the original 18-22 AWG range
• Dimensional Tolerance: Minor dimensional variations exist (width and overall length); verify mechanical fit within the specific application assembly before final selection
• Regulatory Requirements: Both parts meet ROHS3 compliance; the P18-8F-C includes REACH Unaffected status for additional regulatory clarity

Frequently Asked Questions (FAQ)

Q: Can the P18-8F-C replace the BS-31-8-W in all applications?

A: The P18-8F-C is functionally equivalent for applications using 18-22 AWG wire. The expanded wire gauge range (16-22 AWG) allows use with 16 AWG wire where the original part cannot be used. Verify mechanical fit within your specific assembly, as dimensional variations exist.

Q: What is the significance of the 8 stud size in substitution?

A: The 8 stud size is the primary mechanical interface parameter. Both parts feature 8 stud terminals, ensuring compatibility with mating connectors and circuit board receptacles designed for this stud diameter.

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

A: Both parts feature brazed seam construction. This specification is provided for both the BS-31-8-W and P18-8F-C, indicating equivalent manufacturing quality and structural integrity.

Q: Does the tin plating finish differ between manufacturers?

A: Both parts specify tin contact finish on copper base material. The finish provides equivalent corrosion resistance and electrical conductivity for the intended application.

Q: What does ROHS3 compliance mean for substitution?

A: ROHS3 compliance indicates both parts meet Restriction of Hazardous Substances Directive requirements. This certification is mandatory for equivalent substitution in regulated markets and applications.

Q: Why is the wire gauge range different between the two parts?

A: The P18-8F-C accommodates 16-22 AWG while the BS-31-8-W is rated for 18-22 AWG. The P18-8F-C's broader range provides additional flexibility for applications using 16 AWG wire, while maintaining full compatibility with the original 18-22 AWG specification.

Q: Are there packaging differences between these parts?

A: Both parts are supplied in Bulk packaging. Verify minimum order quantities and lead times with your supplier, as packaging configurations may vary by distributor.