Molex 0761557103 Equivalent & Substitute Parts

Part Overview

The Molex 0761557103 is a 120-position backplane connector header designed for through-hole PCB mounting. This Impact series connector features male pins with press-fit termination, configured as 12 rows by 10 columns with a 0.053" (1.35mm) pitch. The connector is actively manufactured and maintains full inventory availability. Equivalent parts are identified when applications require alternative connector solutions that maintain compatibility with the same PCB footprint, electrical specifications, and mechanical mounting requirements.

Substiute Parts

0761557103

MolexIn Stock: 9500761557103 Datasheet

Current PartRFQ

1934311-1

TE Connectivity AMP ConnectorsIn Stock: 16301934311-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0761557103 is determined by the following critical parameters:

• Number of Positions: Must equal 120 positions to maintain PCB footprint compatibility
• Connector Type: Must be Header, Male Pins configuration
• Mounting Type: Must be Through Hole to ensure mechanical compatibility with existing PCB designs
• Termination Method: Must be Press-Fit to align with assembly processes
• Contact Finish: Gold plating ensures electrical performance and corrosion resistance
• Material Flammability Rating: UL94 V-0 compliance is required for safety standards
• RoHS Compliance: ROHS3 Compliant status ensures regulatory alignment

The TE Connectivity AMP Connectors part 1934311-1 qualifies as a substitute based on matching these core parameters. While pitch, voltage rating, and operating temperature differ, these variations do not prevent functional substitution when the application electrical and thermal requirements are within the substitute part's specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0761557103 and TE Connectivity 1934311-1 maintain Active product status with full ROHS3 compliance and UL94 V-0 flammability certification. Selection between these parts should be based on application-specific requirements:

The Molex 0761557103 operates within a 30V voltage specification and -55°C to 85°C temperature range. The TE Connectivity 1934311-1 provides extended voltage capability (250V) and broader operating temperature range (-65°C to 90°C), making it suitable for applications requiring higher electrical or thermal margins.

Pitch differences (0.053" versus 0.075") result in different PCB footprint requirements. PCB layout compatibility must be verified before substitution, as the larger pitch of the TE part requires proportionally larger pad spacing and trace routing.

Both connectors carry identical ECCN and HTSUS classifications, ensuring consistent export and tariff treatment.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 1934311-1 be used as a direct replacement for the Molex 0761557103?

A: Functional substitution is possible when application voltage and temperature requirements fall within the TE part's specifications (250V, -65°C to 90°C). However, PCB layout modification is required due to pitch differences (0.053" versus 0.075"). The larger pitch necessitates redesigned pad layouts and trace routing.

Q: What are the critical compatibility factors for these connectors?

A: Both connectors maintain 120-position, 12-row by 10-column configurations with through-hole press-fit termination. Gold contact finish, UL94 V-0 flammability rating, and ROHS3 compliance are identical. Pitch, voltage rating, and operating temperature ranges differ and must be evaluated against specific application requirements.

Q: Are there packaging differences between these parts?

A: The Molex 0761557103 is supplied in Tray packaging, while the TE Connectivity 1934311-1 is supplied in Tube packaging. Packaging format does not affect electrical or mechanical performance but may influence inventory handling and assembly line integration.

Q: What is the significance of the different pitch specifications?

A: Pitch determines the physical spacing between connector positions on the PCB. The Molex part uses 0.053" (1.35mm) pitch, while the TE part uses 0.075" (1.90mm) pitch. These are not interchangeable on the same PCB without complete footprint redesign. Pitch selection depends on available PCB real estate and signal integrity requirements.

Q: Do both connectors meet the same regulatory standards?

A: Both connectors are ROHS3 Compliant, carry UL94 V-0 flammability certification, and share identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications. Regulatory compliance is equivalent for both parts.