TE Connectivity Erni 354866 Equivalent & Substitute Parts

Part Overview

The TE Connectivity Erni 354866 is a 125-position receptacle connector with female sockets, designed for backplane applications. This connector features a 0.079" (2.00mm) pitch, right-angle through-hole mounting, and press-fit termination with an upper shield. The product is classified as obsolete, making identification of equivalent and substitute parts necessary for ongoing system support and component procurement.

Substiute Parts

354866

TE Connectivity ErniIn Stock: 941354866 Datasheet

Current PartRFQ

5646547-1

TE Connectivity AMP ConnectorsIn Stock: 12515646547-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity Erni 354866 is based on the following critical parameters that must align for functional compatibility:

Core Compatibility Parameters:

• Connector type: Receptacle, Female Sockets
• Pitch: 0.079" (2.00mm)
• Mounting type: Through Hole, Right Angle
• Termination method: Press-Fit
• Connector style: AB 25
• Shielding: Upper Shield present

Functional Equivalence Criteria: The substitute part TE Connectivity AMP Connectors 5646547-1 maintains the same pitch, mounting orientation, termination method, and shielding configuration. While the substitute provides 138 positions (125 + 13 ground) compared to the original 125 positions, the core electrical and mechanical interface parameters remain compatible for backplane connector applications. The additional ground positions in the substitute represent an enhancement rather than a deviation from the original specification.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TE Connectivity AMP Connectors 5646547-1

The TE Connectivity AMP Connectors 5646547-1 is the designated manufacturer-recommended substitute for the obsolete TE Connectivity Erni 354866. This substitute maintains electrical and mechanical compatibility through identical pitch, mounting configuration, termination method, and shielding design.

Compliance Status: The substitute part carries active product status with RoHS compliance certification, ensuring long-term availability and regulatory alignment. Both the original part and substitute maintain MSL 1 (Unlimited) moisture sensitivity ratings, indicating equivalent handling requirements.

Technical Alignment: The substitute provides specified electrical parameters (1.5 A current rating, 500Vrms voltage rating) and operating temperature range (-55°C ~ 125°C) that were not documented for the original part. The gold contact finish with 30.0µin thickness on the substitute represents a standard enhancement for backplane connector applications.

Position Configuration: The substitute connector accommodates 138 positions (125 signal + 13 dedicated ground) within the same physical footprint and row configuration (5 + 1 rows). This configuration supports enhanced grounding architecture while maintaining backward compatibility with the original 125-position signal allocation.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity AMP Connectors 5646547-1 directly replace the TE Connectivity Erni 354866 in existing designs?

A: Yes. Both connectors share identical pitch (0.079" / 2.00mm), mounting type (through-hole, right-angle), termination method (press-fit), and shielding configuration (upper shield). The substitute accommodates the original 125 signal positions plus 13 additional ground positions within compatible row architecture.

Q: What is the significance of the additional 13 ground positions in the substitute part?

A: The substitute part (5646547-1) provides dedicated ground positions (13 total) in addition to the 125 signal positions. This represents an enhanced grounding architecture that improves signal integrity in backplane applications while maintaining compatibility with the original signal pin allocation.

Q: Are there packaging differences between the original and substitute parts?

A: The original part (354866) packaging is not specified. The substitute part (5646547-1) is supplied in tube packaging. Verify packaging requirements for your procurement and assembly processes.

Q: Do both connectors meet the same environmental and compliance standards?

A: Both parts maintain MSL 1 (Unlimited) moisture sensitivity ratings. The original part is RoHS3 compliant; the substitute is RoHS compliant. Both carry EAR99 ECCN classification and 8536.69.4040 HTSUS code.

Q: What electrical specifications should be considered when selecting between these connectors?

A: The substitute part provides documented electrical specifications: 1.5 A current rating and 500Vrms voltage rating. The original part specifications for voltage and current were not provided. The substitute's gold contact finish (30.0µin thickness) supports reliable electrical performance in backplane environments.

Q: Is the operating temperature range a critical factor for substitution?

A: The substitute part specifies -55°C ~ 125°C operating temperature range. The original part operating temperature was not documented. Verify that the substitute's temperature range meets your application requirements.

Q: How do the mounting configurations differ between these connectors?

A: The original part specifies "Through Hole, Right Angle" mounting. The substitute specifies "Board Edge, Through Hole, Right Angle" mounting. Both support right-angle through-hole termination on printed circuit boards.