TE Connectivity Erni 354143 Equivalent & Substitute Parts

Part Overview

The TE Connectivity Erni 354143 is a 125 Position Receptacle connector with female sockets, featuring a 2.00mm pitch and right-angle through-hole mounting configuration. This component is classified as a Backplane Connector and utilizes press-fit termination technology with gold-plated contacts.

The 354143 is currently listed with Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production and maintenance requirements for systems utilizing this connector type.

Substiute Parts

354143

TE Connectivity ErniIn Stock: 1118354143 Datasheet

Current PartRFQ

5100145-1

TE Connectivity AMP ConnectorsIn Stock: 14035100145-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity Erni 354143 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Connector Type: Receptacle, Female Sockets
• Number of Positions: 125
• Pitch: 0.079" (2.00mm)
• Number of Rows: 5
• Mounting Type: Through Hole, Right Angle
• Termination Method: Press-Fit
• Contact Finish: Gold
• Operating Temperature Range: -55°C ~ 125°C
• RoHS Compliance: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute part 5100145-1 (TE Connectivity AMP Connectors) satisfies all mandatory matching parameters. This part maintains functional and mechanical compatibility while offering Active product status and enhanced electrical specifications including defined voltage and current ratings.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TE Connectivity AMP Connectors 5100145-1

The 5100145-1 is the manufacturer-recommended substitute for the obsolete 354143. This part maintains full mechanical and electrical compatibility across all critical parameters while offering significant advantages:

Compliance & Availability:

• Active product status ensures ongoing availability and supply chain support
• ROHS3 Compliant certification aligns with current regulatory requirements
• Moisture Sensitivity Level 1 (Unlimited) matches the original specification
• EAR99 export classification identical to the main part

Electrical Specifications: The 5100145-1 provides defined electrical ratings (1.5 A current rating, 500Vrms voltage rating) that were not specified for the 354143. These ratings support reliable operation in backplane connector applications.

Connector Configuration: Both parts share identical connector geometry: 125 positions, 2.00mm pitch, 5-row configuration, and right-angle through-hole mounting. The B 25 connector style is consistent across both parts.

Termination & Contact Properties: Press-fit termination and gold contact finish are maintained. The 5100145-1 specifies contact finish thickness of 30.0µin (0.76µm), providing documented durability characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 5100145-1 directly replace the 354143 in existing designs?

A: Yes. The 5100145-1 maintains identical connector type, position count, pitch, row configuration, mounting style, and termination method. Both parts operate across the same temperature range (-55°C ~ 125°C) and meet ROHS3 compliance requirements.

Q: What is the significance of the "Board Edge" designation in the 5100145-1 mounting type?

A: The 5100145-1 is specified as "Board Edge, Through Hole, Right Angle" while the 354143 is specified as "Through Hole, Right Angle." Both configurations support right-angle through-hole mounting on printed circuit boards. The Board Edge designation indicates the connector is designed for edge-mounted applications, which is compatible with standard through-hole PCB mounting practices.

Q: Why is the 354143 listed as Obsolete?

A: The 354143 has reached end-of-life status. The 5100145-1 represents the active equivalent from TE Connectivity's current product portfolio, ensuring continued access to this connector type through established supply channels.

Q: Are there electrical performance differences between these parts?

A: The 5100145-1 provides documented electrical specifications (1.5 A current rating, 500Vrms voltage rating) that were not specified for the 354143. These ratings define the electrical operating envelope for the substitute part. Both parts utilize gold-plated contacts and press-fit termination, ensuring equivalent signal integrity and connection reliability.

Q: What packaging is available for the 5100145-1?

A: The 5100145-1 is supplied in Tube packaging. Inventory availability is documented at 1300 pieces in new original condition.

Q: Are both parts RoHS compliant?

A: Yes. Both the 354143 and 5100145-1 are ROHS3 Compliant. Both parts also carry Moisture Sensitivity Level 1 (Unlimited) and EAR99 export classification.