Molex 0761552803 Equivalent & Substitute Parts

Part Overview

The Molex 0761552803 is a 96-position backplane connector header with male pins designed for through-hole PCB mounting. This connector features an Impact style with guide left orientation, 12 rows by 8 columns configuration, and supports 32 differential pairs. The part is classified as obsolete, making identification of active equivalent models essential for ongoing production and maintenance applications.

Substiute Parts

0761552803

MolexIn Stock: 10360761552803 Datasheet

Current PartRFQ

0761553803

MolexIn Stock: 8940761553803 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Molex 0761552803 is determined by strict equivalence across the following critical parameters:

• Connector Configuration: 96 positions, 12 rows × 8 columns, 0.053" (1.35mm) pitch
• Connector Style: Impact with guide left orientation
• Electrical Specifications: 30V voltage rating, 32 differential pairs contact layout
• Physical Mounting: Through-hole press-fit termination
• Material & Environmental Compliance: UL94 V-0 flammability rating, ROHS3 compliance, MSL 1

The Molex 0761553803 meets all these criteria and is classified as an active product, making it a direct functional equivalent to the obsolete 0761552803.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0761553803 is the direct substitute for the obsolete 0761552803. Both parts are manufactured by Molex within the Impact 76155 series and share identical electrical, mechanical, and environmental specifications. The primary distinction is product status: the 0761552803 is obsolete while the 0761553803 is active and currently in production.

Selection of the 0761553803 is supported by:

• Full compliance with ROHS3 environmental regulations
• Identical UL94 V-0 flammability certification
• Maintained electrical performance across the specified -55°C to 85°C operating range
• Consistent press-fit termination and through-hole mounting methodology
• Active inventory availability

Frequently Asked Questions (FAQ)

Q: Are the 0761552803 and 0761553803 mechanically interchangeable?

A: Yes. Both connectors share identical physical dimensions, pitch (0.053"), row/column configuration (12 × 8), and through-hole mounting specifications. PCB footprints are identical.

Q: What is the primary reason for substitution?

A: The 0761552803 is classified as obsolete. The 0761553803 is the active equivalent within the same Impact 76155 series, ensuring continued availability and supply chain continuity.

Q: Are there any electrical performance differences?

A: No. Both parts maintain identical voltage ratings (30V), operating temperature ranges (-55°C to 85°C), and contact layout specifications (32 differential pairs).

Q: Do both parts meet current compliance standards?

A: Yes. Both the 0761552803 and 0761553803 are ROHS3 compliant and carry UL94 V-0 flammability ratings. The 0761553803 additionally carries REACH Unaffected status.

Q: Is the contact finish specification the same?

A: Yes. Both connectors feature gold-plated contacts with 30.0µin (0.76µm) thickness, ensuring equivalent signal integrity and corrosion resistance.

Q: Can the 0761553803 be used in existing designs without modification?

A: Yes. The 0761553803 is a direct functional and physical equivalent. No PCB redesign or connector housing modifications are required.