TE Connectivity Erni 254020 Equivalent & Substitute Parts

Part Overview

The TE Connectivity Erni 254020 is a 7-position connector header with male pins, designed for through-hole, right-angle blade power applications in backplane connector systems. This component features a 2.00mm pitch and press-fit termination with gold contact finish. The part is classified as obsolete, necessitating identification of active equivalent components to maintain design continuity and ensure ongoing component availability for production and field service applications.

Substiute Parts

254020

TE Connectivity ErniIn Stock: 1464254020 Datasheet

Current PartRFQ

5646957-1

TE Connectivity AMP ConnectorsIn Stock: 10335646957-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part TE Connectivity AMP Connectors 5646957-1 is classified as a functional equivalent based on the following critical parameters:

Matching Parameters:

• 7-position connector configuration
• Blade power connector style
• Through-hole, right-angle mounting orientation
• Press-fit termination method
• Gold contact finish (Gold or Gold-Palladium)
• Identical operating temperature range (-55°C ~ 125°C)
• ROHS3 compliance
• MSL 1 rating
• Backplane connector application category

Substitution Basis: The 5646957-1 maintains functional and electrical compatibility through equivalent position count, connector style, mounting methodology, and environmental specifications. Both components operate within the same temperature envelope and meet identical regulatory compliance standards. The substitute part is classified as active product status, providing assured long-term availability compared to the obsolete 254020.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity AMP Connectors 5646957-1 is the designated substitute for the obsolete TE Connectivity Erni 254020. Selection of the 5646957-1 is supported by the following engineering criteria:

Product Status Alignment: The substitute part maintains active product status, ensuring continued manufacturing support, documented supply chain availability, and technical documentation accessibility. The original part's obsolete classification creates supply risk and limits design support resources.

Regulatory Compliance: Both components achieve ROHS3 compliance and REACH unaffected status, meeting current environmental and hazardous substance regulations. The substitute part provides additional material flammability certification (UL94 V-0) and specified voltage rating (250V), enhancing design documentation completeness.

Functional Equivalence: Matching specifications across connector positions, blade power style, through-hole right-angle mounting, press-fit termination, and operating temperature range establish direct functional compatibility. Both components support identical backplane connector applications.

Packaging and Availability: The substitute part is available in tube packaging with 954 units in current inventory, compared to the tray-packaged obsolete component. This ensures immediate procurement capability for new production and field service requirements.

Frequently Asked Questions (FAQ)

Q: Can the 5646957-1 directly replace the 254020 in existing designs?

A: The 5646957-1 provides functional equivalence for backplane blade power connector applications. Both components share identical position count (7), connector style (blade power), mounting orientation (through-hole right angle), and termination method (press-fit). Design verification should confirm mechanical fit within the specific PCB layout and mating connector interface.

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

A: The 254020 uses male pins, while the 5646957-1 uses male blades. Both are blade power connectors designed for right-angle through-hole mounting. The 5646957-1 includes board guide features and specifies a 250V voltage rating and UL94 V-0 flammability rating, which are not documented for the 254020.

Q: Why is the 254020 classified as obsolete?

A: The 254020 is part of the legacy ERMET series and has been superseded by the active UPM (Universal Power Modules) series, represented by the 5646957-1. TE Connectivity has transitioned manufacturing focus to the newer product line.

Q: Are there any compatibility concerns with the packaging change?

A: The 254020 is supplied in tray packaging, while the 5646957-1 is supplied in tube packaging. This affects handling and storage procedures but does not impact component functionality or electrical performance.

Q: What certifications apply to the substitute part?

A: The 5646957-1 is ROHS3 compliant, REACH unaffected, and carries UL94 V-0 material flammability certification. It operates across the identical temperature range (-55°C ~ 125°C) as the original part and maintains MSL 1 moisture sensitivity rating.

Q: Is the pitch specification identical between both parts?

A: The 254020 specifies 0.079" (2.00mm) pitch. The 5646957-1 pitch is not documented in the provided specifications. Design verification should confirm pitch compatibility with mating connector interfaces before implementation.

Q: What is the contact finish specification for the substitute part?

A: The 5646957-1 specifies gold or gold-palladium contact finish, providing equivalent or enhanced contact performance compared to the 254020's gold finish specification.