Molex 0761650823 72-Position Impact Backplane Connector Header

Part Overview

The Molex 0761650823 is a 72-position Impact series backplane connector header designed for through-hole PCB mounting. This connector features male pins with press-fit termination and is configured as a 9×8 matrix with 24 differential pairs. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. Substitute parts are identified based on matching electrical specifications, mechanical compatibility, and functional equivalence within the backplane connector category.

Substiute Parts

0761650823

MolexIn Stock: 11410761650823 Datasheet

Current PartRFQ

0761651823

MolexIn Stock: 9450761651823 Datasheet

DirectRFQ

1934300-1

TE Connectivity AMP ConnectorsIn Stock: 7571934300-1 Datasheet

MFR RecommendedRFQ

1934301-1

TE Connectivity AMP ConnectorsIn Stock: 9201934301-1 Datasheet

MFR RecommendedRFQ

1934302-1

TE Connectivity AMP ConnectorsIn Stock: 35011934302-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Molex 0761650823 are grouped into two categories based on substitution criteria:

Direct Equivalent (Same Series): The Molex 0761651823 is a direct equivalent within the Impact 76165 series. This part maintains identical electrical and mechanical specifications including 72 positions, 0.053" pitch, 9×8 matrix configuration, through-hole mounting, and press-fit termination. The primary difference is product status (Active vs. Obsolete) and packaging format (Tray vs. standard). This part is the preferred direct replacement.

Functional Alternatives (Different Series): TE Connectivity AMP Connectors parts 1934300-1, 1934301-1, and 1934302-1 from the Z-PACK TinMan series provide functional alternatives. These parts share the following compatible parameters: 72-position count, through-hole mounting, press-fit termination, gold contact finish, UL94 V-0 flammability rating, and ROHS3 compliance. However, these alternatives differ in pitch (0.075" vs. 0.053"), matrix configuration (9×3 or 9×8), connector style (High Speed vs. Impact), voltage rating (250V vs. 30V), and operating temperature range (-65°C to 90°C vs. -55°C to 85°C). Part 1934302-1 differs further as a Plug configuration rather than Header.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: The Molex 0761651823 is the recommended substitute for the obsolete 0761650823. Both parts are from the same Impact 76165 series and maintain identical electrical and mechanical specifications. The 0761651823 is currently in Active product status with 843 units in stock, ensuring long-term availability. This part requires no design modifications and provides the most straightforward transition path.

For Functional Alternatives: TE Connectivity AMP Connectors parts from the Z-PACK TinMan series (1934300-1, 1934301-1, 1934302-1) are suitable only when PCB layout modifications are acceptable. These parts introduce dimensional changes due to increased pitch (0.075" vs. 0.053") and altered matrix configurations. The 1934301-1 maintains the 9×8 matrix and is the closest alternative within this series. The 1934302-1 is a Plug configuration and is not interchangeable with the Header type without connector interface redesign. All three TE alternatives provide enhanced electrical performance with 250V voltage rating and 0.5A current rating, along with extended operating temperature range (-65°C to 90°C).

All substitute parts maintain ROHS3 compliance, UL94 V-0 flammability rating, and MSL 1 moisture sensitivity level, ensuring regulatory and environmental compatibility with the original part.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0761651823 be used as a direct drop-in replacement for the 0761650823? A: Yes. The 0761651823 is a direct equivalent with identical electrical and mechanical specifications. No design modifications are required. The primary difference is product status (Active vs. Obsolete) and packaging format (Tray).

Q: What are the key differences between the Molex Impact series and TE Connectivity Z-PACK TinMan series substitutes? A: The primary differences are connector pitch (0.053" vs. 0.075"), matrix configuration options, connector style (Impact vs. High Speed), and electrical ratings. The Molex Impact series operates at 30V with unspecified current rating, while the TE Z-PACK TinMan series is rated for 250V at 0.5A. These differences require PCB layout evaluation before substitution.

Q: Is the TE Connectivity 1934302-1 compatible with the original Molex 0761650823? A: The 1934302-1 is a Plug configuration, whereas the original part is a Header. These are not interchangeable without redesigning the connector interface. The 1934301-1 (Header configuration) is the appropriate TE alternative if a Z-PACK TinMan series part is required.

Q: What is the impact of the different pitch specifications on PCB design? A: The original Molex part uses 0.053" (1.35mm) pitch, while TE alternatives use 0.075" (1.90mm) pitch. This difference requires PCB footprint redesign and cannot be accommodated through component substitution alone. Pitch compatibility must be verified before selecting a TE alternative.

Q: Are all substitute parts ROHS3 compliant? A: Yes. The Molex 0761651823 and all TE Connectivity alternatives (1934300-1, 1934301-1, 1934302-1) are ROHS3 compliant with UL94 V-0 flammability rating and MSL 1 moisture sensitivity level.

Q: Which substitute part offers the best availability? A: The Molex 0761651823 (843 units in stock) is the most readily available direct equivalent. Among TE alternatives, the 1934302-1 has the highest inventory (3458 units), followed by 1934301-1 (855 units) and 1934300-1 (732 units).