Molex 0761550823 96-Position Backplane Connector Header – Equivalent & Substitute Parts

Part Overview

The Molex 0761550823 is a 96-position Impact series backplane connector header designed for through-hole PCB mounting. This connector features male pins with press-fit termination, gold-plated contacts, and is rated for 30V operation across a temperature range of -55°C to 85°C. The part is classified as obsolete, making identification of active equivalent and substitute components essential for ongoing production and maintenance applications. Direct substitutes and manufacturer-recommended alternatives are available from both Molex and TE Connectivity to ensure design continuity.

Substiute Parts

0761550823

MolexIn Stock: 10980761550823 Datasheet

Current PartRFQ

0761551823

MolexIn Stock: 7040761551823 Datasheet

DirectRFQ

1934303-1

TE Connectivity AMP ConnectorsIn Stock: 12291934303-1 Datasheet

MFR RecommendedRFQ

1934304-1

TE Connectivity AMP ConnectorsIn Stock: 11131934304-1 Datasheet

MFR RecommendedRFQ

1934305-1

TE Connectivity AMP ConnectorsIn Stock: 12901934305-1 Datasheet

MFR RecommendedRFQ

1934306-1

TE Connectivity AMP ConnectorsIn Stock: 14561934306-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Molex 0761550823 is determined by the following critical parameters: connector type (Header, Male Pins), number of positions (96), mounting method (Through Hole), termination style (Press-Fit), contact finish (Gold), color (Black), material flammability rating (UL94 V-0), RoHS compliance (ROHS3), and MSL rating (1).

Substitutes are grouped into two categories:

Direct Molex Substitute: Part 0761551823 maintains identical electrical and mechanical specifications to the main part, differing only in product status (Active) and packaging (Tray). This part is the primary replacement for the obsolete 0761550823.

TE Connectivity Manufacturer-Recommended Alternatives: Parts 1934303-1, 1934304-1, 1934305-1, and 1934306-1 are from the TE Connectivity Z-PACK TinMan series. These parts share the same connector type, position count, row/column configuration, mounting method, termination style, contact finish, color, flammability rating, RoHS compliance, and MSL rating. Differences exist in connector style (High Speed vs. Impact), pitch (0.075" vs. 0.053"), current rating (0.5A vs. unspecified), operating temperature range (-65°C ~ 90°C vs. -55°C ~ 85°C), and voltage rating (250V vs. 30V).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: The Molex 0761551823 is the primary substitute for the obsolete 0761550823. Both parts maintain identical electrical and mechanical specifications, including pitch, position count, operating temperature range, and voltage rating. The 0761551823 is currently in active production status with 689 units in stock, making it the preferred choice for applications requiring exact parameter matching.

For Cross-Manufacturer Substitution: The TE Connectivity parts (1934303-1, 1934304-1, 1934305-1, 1934306-1) are manufacturer-recommended alternatives. These parts are suitable for applications where the increased voltage rating (250V vs. 30V), extended operating temperature range (-65°C ~ 90°C vs. -55°C ~ 85°C), and specified current rating (0.5A) provide design margin. However, the larger pitch (0.075" vs. 0.053") requires PCB layout verification to confirm mechanical compatibility. All substitute parts maintain ROHS3 compliance, UL94 V-0 flammability rating, and MSL 1 classification, ensuring regulatory and environmental compatibility with the original design.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity parts be used as direct drop-in replacements for the Molex 0761550823?

A: The TE Connectivity parts share the same connector type, position count, row/column configuration, mounting method, and termination style. However, the pitch difference (0.075" vs. 0.053") requires PCB layout verification. The parts are electrically and mechanically compatible in terms of contact finish, flammability rating, and compliance standards, but physical spacing on the PCB must be confirmed before implementation.

Q: What is the primary difference between the Molex 0761550823 and 0761551823?

A: The parts are electrically and mechanically identical. The primary difference is product status: 0761550823 is obsolete, while 0761551823 is active production. Packaging also differs (unspecified for 0761550823 vs. Tray for 0761551823).

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The main part (0761550823) and all substitute parts (0761551823, 1934303-1, 1934304-1, 1934305-1, 1934306-1) are ROHS3 compliant with UL94 V-0 flammability rating and MSL 1 classification.

Q: What is the impact of the voltage rating difference between the Molex and TE Connectivity parts?

A: The Molex 0761550823 is rated for 30V, while TE Connectivity alternatives are rated for 250V. The higher voltage rating of TE Connectivity parts provides additional design margin and is suitable for applications operating at or below 30V. No design modification is required for voltage compatibility.

Q: Which substitute part should be selected for new designs?

A: For new designs requiring exact parameter matching to the original specification, the Molex 0761551823 is recommended. For applications where extended operating temperature range and higher voltage rating are beneficial, TE Connectivity parts (1934303-1, 1934304-1, 1934305-1, 1934306-1) are suitable alternatives, provided PCB layout accommodates the larger pitch.

Q: Are there packaging differences among the substitute parts?

A: Yes. The Molex 0761551823 is packaged in Tray format. TE Connectivity parts (1934303-1, 1934304-1, 1934305-1, 1934306-1) are packaged in Tube format. Packaging selection should align with assembly process requirements and inventory management practices.