SS-31-8 Equivalent & Substitute Parts Reference

Part Overview

The SS-31-8 is a spade terminal connector manufactured by 3M, designed for crimp termination of 18-22 AWG wire. This component is classified as an 8 stud spade terminal with spring/snap mounting type, suitable for free-hanging in-line applications. The part is currently active in production status and RoHS compliant.

Equivalent and substitute parts are identified based on matching core electrical and mechanical parameters: terminal type, stud size, wire gauge range, termination method, and mounting configuration. These alternatives enable procurement flexibility and supply chain continuity.

Substiute Parts

SS-31-8

3MIn Stock: 849SS-31-8 Datasheet

Current PartRFQ

8255

Keystone ElectronicsIn Stock: 9068255 Datasheet

MFR RecommendedRFQ

P18-8LF-C

Panduit CorpIn Stock: 1021P18-8LF-C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SS-31-8 are qualified based on the following critical parameters:

• Terminal Type: Spring, Snap configuration
• Stud/Tab Size: 8 Stud (mechanical compatibility with mating connectors)
• Wire Gauge Range: 18-22 AWG (electrical and mechanical fit)
• Termination Method: Crimp (assembly process compatibility)
• Mounting Type: Free Hanging (In-Line)
• Insulation: Non-Insulated
• Category: Terminals

Two substitute parts meet these core criteria: Keystone Electronics 8255 and Panduit Corp P18-8LF-C. Both maintain identical wire gauge, terminal type, stud size, and termination method as the primary part.

Parameter Comparison

Engineering Selection Recommendations

The Keystone Electronics 8255 is the primary substitute for the SS-31-8. Both parts are active in production status and maintain identical core electrical and mechanical specifications. The 8255 carries ROHS3 compliance and features specified contact material (Copper, ETP) and tin finish.

The Panduit Corp P18-8LF-C is a secondary substitute option. This part is classified as obsolete and should be selected only when supply of active alternatives is unavailable. The P18-8LF-C exhibits minor dimensional variations in overall length (0.740" versus 0.680") and outer edge width (0.290" versus 0.250"), which may affect fit in space-constrained applications. ROHS3 compliance and tin-finished copper contacts are specified.

Frequently Asked Questions (FAQ)

Q: What makes the Keystone 8255 equivalent to the SS-31-8?

A: Both parts share identical terminal type (Spring, Snap), stud size (8 Stud), wire gauge range (18-22 AWG), termination method (Crimp), and mounting configuration (Free Hanging In-Line). Overall length and ring center to termination dimensions are identical at 0.680" and 0.250" respectively.

Q: Can the Panduit P18-8LF-C be used as a direct replacement?

A: The P18-8LF-C meets all core electrical and mechanical substitution criteria. However, dimensional variations exist: overall length is 0.740" (versus 0.680") and outer edge width is 0.290" (versus 0.250"). These differences may impact compatibility in applications with tight spatial constraints. Additionally, this part is obsolete and should be used only when active alternatives are unavailable.

Q: What compliance certifications apply to these substitute parts?

A: The SS-31-8 is RoHS Compliant. Both substitute parts (8255 and P18-8LF-C) carry ROHS3 Compliant certification. All three parts are REACH Unaffected and classified under ECCN EAR99.

Q: Are there packaging considerations when selecting substitutes?

A: All three parts are supplied in bulk packaging. Inventory availability differs: SS-31-8 (742 pcs), 8255 (815 pcs), and P18-8LF-C (957 pcs). Packaging format remains consistent across all options.

Q: What is the significance of the obsolete status for the P18-8LF-C?

A: Obsolete status indicates the Panduit part is no longer in active production. While existing inventory may be available, long-term supply cannot be guaranteed. The active status of both SS-31-8 and 8255 ensures continued availability for future procurement needs.