Keystone Electronics 8238 Spade Terminal Connector - Equivalent & Substitute Parts

Part Overview

The Keystone Electronics 8238 is a 10 stud spade terminal connector designed for crimp termination of 18-22 AWG wire. This flanged, non-insulated terminal is configured for free-hanging in-line mounting applications. The part is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing maintenance, repair, and production support of legacy systems utilizing this connector type.

Key Parameters

Parameter	Value
Stud/Tab Size	10 Stud
Wire Gauge	18-22 AWG
Terminal Type	Flanged
Mounting Type	Free Hanging (In-Line)
Termination Method	Crimp
Width - Outer Edges	0.300" (7.62mm)
Length - Overall	0.650" (16.50mm)
Insulation	Non-Insulated
Contact Material	Copper, ETP
Contact Finish	Tin
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the Keystone Electronics 8238 is determined by strict equivalence across the following critical parameters:

Stud Size: 10 stud configuration (electrical interface requirement)
Wire Gauge Compatibility: 18-22 AWG (termination compatibility)
Terminal Type: Flanged geometry (mechanical fit requirement)
Mounting Configuration: Free hanging in-line (installation requirement)
Termination Method: Crimp (assembly process requirement)
Overall Dimensions: Width 0.300" (7.62mm) and length 0.650" (16.50mm) (physical fit requirement)
Material Specification: Copper with tin contact finish (electrical and corrosion resistance requirement)
Regulatory Compliance: ROHS3 compliant (environmental requirement)

The 3M BS-21-10-W meets all critical substitution criteria and is classified as a direct equivalent for the obsolete Keystone 8238.

Parameter Comparison

Parameter	Keystone 8238	3M BS-21-10-W	Match Status
Manufacturer	Keystone Electronics	3M	Different Manufacturer
Stud/Tab Size	10 Stud	10 Stud	Equivalent
Wire Gauge	18-22 AWG	18-22 AWG	Equivalent
Terminal Type	Flanged	Flanged	Equivalent
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Equivalent
Termination	Crimp	Crimp	Equivalent
Width - Outer Edges	0.300" (7.62mm)	0.300" (7.62mm)	Equivalent
Length - Overall	0.650" (16.50mm)	0.650" (16.51mm)	Equivalent
Insulation	Non-Insulated	Non-Insulated	Equivalent
Length - Ring Center to Termination	0.250" (6.35mm)	0.250" (6.35mm)	Equivalent
Length - Termination	0.250" (6.35mm)	0.250" (6.35mm)	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Equivalent
ECCN	EAR99	EAR99	Equivalent
HTSUS Code	8536.90.4000	8536.90.4000	Equivalent
Product Status	Obsolete	Active	Substitute is Active

Engineering Selection Recommendations

The 3M BS-21-10-W is the direct functional equivalent for the obsolete Keystone Electronics 8238. Selection of this substitute is supported by:

Full dimensional equivalence across all critical mechanical parameters
Identical electrical specifications for stud size and wire gauge compatibility
Matching regulatory compliance certifications (ROHS3, EAR99, HTSUS classification)
Active product status ensuring continued availability and supply chain reliability
Identical moisture sensitivity rating and environmental performance characteristics

The substitute part is suitable for direct replacement in applications currently utilizing the Keystone 8238 without modification to assembly processes, tooling, or installation procedures.

Frequently Asked Questions (FAQ)

Q: Can the 3M BS-21-10-W be used as a direct replacement for the Keystone 8238?

A: Yes. The 3M BS-21-10-W meets all critical substitution parameters including stud size, wire gauge, terminal geometry, mounting configuration, and dimensional specifications. Both parts are ROHS3 compliant and share identical regulatory classifications.

Q: What is the significance of the 10 stud designation?

A: The 10 stud size defines the electrical interface. This specification determines compatibility with mating connectors and terminal blocks. Both the original and substitute part share this specification.

Q: Are there packaging differences between these parts?

A: The Keystone 8238 packaging specification is not provided in the available data. The 3M BS-21-10-W is supplied in bulk packaging. Packaging format should be confirmed with the supplier based on application requirements.

Q: What does the 18-22 AWG specification mean?

A: This wire gauge range defines the acceptable wire sizes for crimp termination. Both parts accommodate this identical range, ensuring compatibility with existing wire specifications in legacy systems.

Q: Why is the Keystone 8238 listed as obsolete?

A: Obsolescence indicates the part is no longer manufactured by Keystone Electronics. The 3M BS-21-10-W provides functional continuity for systems requiring this terminal type.

Q: Are the dimensional tolerances identical between both parts?

A: The overall length specification shows a minor variance (0.650" versus 0.650" with 16.51mm notation for the 3M part). This variance is within typical manufacturing tolerances for this connector class and does not affect functional compatibility.

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