Molex 0761450136 Impact 180-Position Backplane Connector Header

Part Overview

The Molex 0761450136 is a 180-position backplane connector header designed for through-hole PCB mounting. This component features male pins in the Impact series configuration with press-fit termination and gold-plated contacts. The part is classified as obsolete, making substitute components necessary for new designs and ongoing production support. The primary reason for identifying alternatives is the discontinued status of this original part number, which requires sourcing from active product lines that maintain identical electrical and mechanical specifications.

Substiute Parts

0761450136

MolexIn Stock: 12230761450136 Datasheet

Current PartRFQ

0761451136

MolexIn Stock: 10430761451136 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0761450136 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications in the following categories:

Electrical Parameters: Voltage rating (30V), contact finish composition and thickness (gold, 30.0µin), and differential pair configuration (60 differential pairs).

Mechanical Parameters: Connector position count (180), pitch spacing (0.053"/1.35mm), row and column configuration (18 rows × 10 columns), mounting method (through hole), and termination type (press-fit).

Environmental and Compliance Parameters: Operating temperature range (-55°C to 85°C), material flammability rating (UL94 V-0), RoHS3 compliance, and moisture sensitivity level (MSL 1).

Series Consistency: Both parts must belong to the Molex Impact 76145 series to ensure mechanical and electrical compatibility within the connector ecosystem.

The substitute part Molex 0761451136 meets all these criteria and is classified as active product status, providing continued availability and manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0761451136 is the direct functional equivalent for the obsolete Molex 0761450136. Both components are manufactured by Molex within the same Impact 76145 series and maintain complete electrical and mechanical compatibility. The substitute part carries active product status, ensuring ongoing manufacturing support, quality assurance, and supply chain availability.

The only difference between the two parts is packaging format: the original uses bulk packaging while the substitute uses tray packaging. This packaging difference does not affect electrical performance, mechanical fit, or compliance certifications. Both parts maintain ROHS3 compliance and UL94 V-0 flammability ratings, meeting the same regulatory requirements for backplane connector applications.

For new designs and production transitions, the Molex 0761451136 provides direct replacement capability without design modifications or PCB layout changes. The active product status of the substitute ensures long-term availability and consistent manufacturing quality.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0761451136 be used as a direct replacement for the 0761450136 in existing designs?

A: Yes. The 0761451136 is electrically and mechanically identical to the 0761450136. All critical parameters including position count, pitch, mounting type, contact finish, and operating specifications are equivalent. No design modifications are required.

Q: What is the difference between the two part numbers?

A: The primary difference is product status and packaging. The 0761450136 is obsolete and supplied in bulk packaging, while the 0761451136 is an active product supplied in tray packaging. All electrical and mechanical specifications are identical.

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

A: No. Both parts carry identical certifications: ROHS3 compliance, UL94 V-0 flammability rating, and MSL 1 moisture sensitivity level. They meet the same regulatory and environmental standards.

Q: Does the tray packaging of the substitute affect compatibility?

A: No. Packaging format does not affect the connector's electrical performance or mechanical fit. The tray packaging is a logistics consideration only and does not impact PCB assembly or functionality.

Q: What is the contact finish specification for both parts?

A: Both parts feature gold-plated contacts with a thickness of 30.0µin (0.76µm). This specification is identical across both part numbers.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both the 0761450136 and 0761451136 operate across the identical temperature range of -55°C to 85°C and maintain the same 30V voltage rating.