TE Connectivity Erni 123701 Equivalent & Substitute Parts

Part Overview

The TE Connectivity Erni 123701 is a 55 Position Header connector with male pins, featuring a 0.079" (2.00mm) pitch and 5-row configuration. This backplane connector utilizes press-fit termination for through-hole mounting applications. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional and electrical compatibility for ongoing production and maintenance requirements.

Substiute Parts

123701

TE Connectivity ErniIn Stock: 953123701 Datasheet

Current PartRFQ

5188232-1

TE Connectivity AMP ConnectorsIn Stock: 10295188232-1 Datasheet

MFR RecommendedRFQ

5100159-1

TE Connectivity AMP ConnectorsIn Stock: 2342945100159-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete TE Connectivity Erni 123701 is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

• Connector type: Header, Male Pins
• Position count: 55 positions
• Pitch specification: 0.079" (2.00mm)
• Row configuration: 5 rows
• Connector style: C 11
• Mounting method: Through Hole
• Termination technology: Press-Fit
• Connector category: Backplane Connectors

Both substitute parts (5188232-1 and 5100159-1) satisfy all critical parameters. Both are manufactured by TE Connectivity AMP Connectors, belong to the Z-PACK series, and maintain active product status. These parts provide direct functional replacement capability for the obsolete 123701 connector.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TE Connectivity AMP Connectors 5100159-1

The 5100159-1 is the preferred substitute for the obsolete 123701. This part maintains ROHS3 compliance status identical to the original specification and provides complete electrical and mechanical compatibility. The part is in active production with substantial inventory availability (234,227 pieces). Contact finish thickness is explicitly specified at 30.0µin (0.76µm), providing documented reliability characteristics. REACH status is vendor-defined, consistent with active product management protocols.

Secondary Substitute: TE Connectivity AMP Connectors 5188232-1

The 5188232-1 serves as an alternative substitute, offering identical mechanical and electrical parameters. This part maintains RoHS compliance and active product status with adequate inventory (1,015 pieces). Contact finish thickness is not specified for this variant. Both substitutes are packaged in tube format and include board guide features.

Both substitute parts eliminate obsolescence risk while maintaining full functional equivalence across all critical connector parameters. Selection between 5100159-1 and 5188232-1 depends on inventory availability, packaging requirements, and contact finish thickness specifications for the application.

Frequently Asked Questions (FAQ)

Q: Can 5188232-1 and 5100159-1 be used interchangeably with the 123701?

A: Both parts satisfy all critical substitution parameters: 55-position configuration, 0.079" (2.00mm) pitch, 5-row layout, C 11 connector style, through-hole mounting, and press-fit termination. Both are mechanically and electrically compatible with applications designed for the 123701.

Q: What is the primary difference between the two substitute parts?

A: The 5100159-1 specifies contact finish thickness at 30.0µin (0.76µm), while the 5188232-1 does not provide this specification. Both parts feature gold contact finish and identical electrical ratings (1.5 A, 500Vrms). Inventory availability differs, with 5100159-1 offering significantly higher stock levels.

Q: Are there compliance differences between the substitutes and the original part?

A: The 123701 carries ROHS3 compliance. The 5100159-1 maintains ROHS3 status. The 5188232-1 carries RoHS compliance designation. Both substitutes meet the original part's MSL 1 (Unlimited) rating and EAR99 export classification.

Q: What packaging formats are available for the substitute parts?

A: Both 5188232-1 and 5100159-1 are supplied in tube packaging, differing from the original part's unspecified packaging format.

Q: Do the substitute parts include additional features not present in the original specification?

A: Both substitutes include board guide features. The original 123701 specification does not document this feature. This addition enhances mechanical stability during assembly without affecting electrical performance.

Q: What are the electrical operating parameters for the substitute connectors?

A: Both substitutes are rated for 1.5 A current capacity and 500Vrms voltage rating across an operating temperature range of -55°C to 125°C. The original 123701 does not specify these parameters.