TE Connectivity Erni 923539 Equivalent & Substitute Parts

Part Overview

The TE Connectivity Erni 923539 is a 3-position power header connector with male pins, designed for board edge mounting in through-hole, right-angle applications. This connector features 2.00mm (0.079") pitch spacing and press-fit termination with gold contact finish. The product is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system support, maintenance, and new design implementations where legacy compatibility is required.

Substiute Parts

923539

TE Connectivity ErniIn Stock: 751923539 Datasheet

Current PartRFQ

5223977-1

TE Connectivity AMP ConnectorsIn Stock: 8685223977-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity Erni 923539 is based on the following critical parameters that must align between the main part and substitute candidates:

Primary Substitution Criteria:

• Connector category: Backplane Connectors
• Number of positions: 3 (Power)
• Mounting configuration: Board Edge, Through Hole, Right Angle
• Termination method: Press-Fit
• Contact finish: Gold or equivalent noble metal finish
• Operating temperature range: -55°C ~ 125°C minimum
• Number of rows: 1
• RoHS3 compliance status

The substitute part TE Connectivity AMP Connectors 5223977-1 satisfies these criteria as an active product within the UPM (Universal Power Modules) series. While the connector type differs (male blades versus male pins), both configurations serve identical functional roles in backplane power distribution applications with equivalent electrical and mechanical interfaces.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity AMP Connectors 5223977-1 is the designated substitute for the obsolete TE Connectivity Erni 923539. Selection of this substitute is supported by the following engineering factors:

Product Status Alignment: The substitute part maintains active product status within the UPM (Universal Power Modules) series, ensuring long-term availability, manufacturing continuity, and technical support compared to the obsolete main part.

Compliance Certification: Both parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity ratings, confirming equivalent environmental and regulatory qualification standards.

Electrical and Mechanical Specifications: The substitute part provides matching operating temperature range (-55°C ~ 125°C), identical mounting configuration (board edge, through-hole, right-angle), and equivalent press-fit termination. The substitute additionally specifies 250V voltage rating and UL94 V-0 material flammability rating, providing documented electrical performance parameters.

Connector Interface: While the main part uses male pins and the substitute uses male blades, both configurations function as power distribution headers in backplane applications with equivalent contact engagement and current-carrying capacity for 3-position power circuits.

Packaging and Inventory: The substitute part is available in tube packaging with 785 pieces in new original stock, providing immediate procurement availability.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity AMP 5223977-1 directly replace the TE Connectivity Erni 923539 in existing designs?

A: Yes. Both connectors share identical mounting configuration (board edge, through-hole, right-angle), position count (3 power positions), pitch spacing (2.00mm), and operating temperature range (-55°C ~ 125°C). The primary difference is connector type (male blades versus male pins), which represents a functionally equivalent interface for backplane power distribution applications.

Q: What is the significance of the product status difference between these parts?

A: The main part (923539) is classified as obsolete, indicating discontinued manufacturing and limited long-term availability. The substitute part (5223977-1) maintains active product status, ensuring ongoing manufacturing support, technical documentation, and procurement availability for current and future applications.

Q: Are there compliance or certification differences between these parts?

A: Both parts maintain ROHS3 compliance and MSL 1 (Unlimited) ratings. The substitute part additionally specifies UL94 V-0 material flammability rating and 250V voltage rating, providing documented electrical performance parameters not specified for the main part.

Q: What packaging format is available for the substitute part?

A: The TE Connectivity AMP 5223977-1 is supplied in tube packaging, with 785 pieces available in new original stock.

Q: Are there any mechanical interface considerations when substituting these parts?

A: Both parts feature identical board edge mounting, through-hole termination, and right-angle orientation. The connector type difference (male pins versus male blades) requires verification that mating receptacles are compatible with the blade contact configuration of the substitute part.

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

A: The substitute part specifies gold or gold-palladium contact finish, providing equivalent or superior corrosion resistance compared to the gold finish of the main part.