DF9-51P-1V(54) Equivalent & Substitute Parts

Part Overview

The DF9-51P-1V(54) is a 51-position rectangular connector header manufactured by Hirose Electric Co., Ltd., designed for surface mount applications with center strip contacts and gold plating. This connector is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design and procurement requirements. The part features board guide and solder retention capabilities, making it suitable for high-reliability interconnect applications.

Substiute Parts

DF9-51P-1V(54)

Hirose Electric Co., Ltd.In Stock: 812DF9-51P-1V(54) Datasheet

Current PartRFQ

DF9-51P-1V(69)

Hirose Electric Co., Ltd.In Stock: 2429DF9-51P-1V(69) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The DF9-51P-1V(54) can be substituted with the DF9-51P-1V(69) based on the following electrical and mechanical compatibility criteria:

Matching Parameters:

• Identical number of positions (51)
• Identical pitch specification (0.039" / 1.00mm)
• Identical number of rows (2)
• Identical connector type (Header, Center Strip Contacts)
• Identical mounting type (Surface Mount)
• Identical contact finish material (Gold)
• Identical features (Board Guide, Solder Retention)
• Identical height above board (0.130" / 3.30mm)
• Identical mated stacking heights (4.3mm)
• Same base product number (DF9-51P)
• Same series designation (DF9)

The primary distinction between these parts is packaging format and product status, with the substitute part being active and RoHS3 compliant.

Parameter Comparison

Engineering Selection Recommendations

The DF9-51P-1V(69) is the direct functional equivalent for the obsolete DF9-51P-1V(54). Selection of the substitute part is based on:

Product Status: The DF9-51P-1V(69) maintains active product status, ensuring continued availability and manufacturer support, whereas the original part is obsolete.

Regulatory Compliance: The substitute part achieves ROHS3 compliance, meeting current environmental and regulatory requirements. The original part is RoHS non-compliant and does not satisfy modern procurement standards.

Electrical and Mechanical Compatibility: All critical connector parameters—position count, pitch, row configuration, mounting type, contact finish, and dimensional specifications—are identical between the two parts, ensuring direct interchangeability at the board level.

Packaging Consideration: The substitute part is supplied in Tape & Reel format, which is standard for high-volume surface mount assembly operations.

Frequently Asked Questions (FAQ)

Q: Are the DF9-51P-1V(54) and DF9-51P-1V(69) electrically interchangeable?

A: Yes. Both parts share identical electrical specifications including 51 positions, 1.00mm pitch, 2-row configuration, and gold contact finish. They are electrically interchangeable.

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

A: The primary differences are product status (obsolete vs. active), RoHS compliance (non-compliant vs. ROHS3 compliant), packaging format (unspecified vs. Tape & Reel), and contact finish thickness specification (unspecified vs. 8.00µin). The connector functionality and board-level performance are identical.

Q: Can I use the DF9-51P-1V(69) as a direct replacement in existing designs?

A: Yes. The substitute part maintains all critical mechanical and electrical parameters, including height above board, mated stacking height, and mounting type. Direct substitution is supported without design modification.

Q: Why is the original part obsolete?

A: Product obsolescence is determined by the manufacturer. The availability of the active equivalent DF9-51P-1V(69) provides a clear migration path for designs currently using the DF9-51P-1V(54).

Q: Does the substitute part meet current regulatory requirements?

A: Yes. The DF9-51P-1V(69) is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards applicable to electronic components.

Q: Are there any dimensional differences between these parts?

A: No. Both parts have identical height above board (0.130" / 3.30mm) and mated stacking heights (4.3mm), ensuring compatibility with existing PCB layouts and mating connectors.