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

Part Overview

The DF9-51S-1V(54) is a 51-position rectangular connector receptacle manufactured by Hirose Electric Co Ltd, designed for surface mount applications with outer shroud contacts and gold plating. This connector is part of the DF9 series and features a 1.00mm pitch configuration suitable for high-density interconnect requirements.

The DF9-51S-1V(54) is classified as obsolete. Identifying equivalent substitute parts is necessary to ensure continued availability for new designs, production continuity, and long-term component sourcing strategies.

Substiute Parts

DF9-51S-1V(54)

Hirose Electric Co LtdIn Stock: 1043DF9-51S-1V(54) Datasheet

Current PartRFQ

DF9-51S-1V(69)

Hirose Electric Co LtdIn Stock: 8474DF9-51S-1V(69) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DF9-51S-1V(54) is based on strict equivalence of the following critical parameters:

• Connector type: Receptacle with outer shroud contacts
• Number of positions: 51
• Pitch: 1.00mm (0.039")
• Number of rows: 2
• Mounting type: Surface mount
• Contact finish: Gold
• Mated stacking height: 4.3mm
• Height above board: 3.30mm
• Features: Board guide and solder retention
• Series compatibility: DF9

The DF9-51S-1V(69) meets all these electrical and mechanical parameters, making it a direct functional equivalent. The primary difference is the packaging format and product status classification.

Parameter Comparison

Engineering Selection Recommendations

The DF9-51S-1V(69) is the direct substitute for the obsolete DF9-51S-1V(54). Both parts share identical electrical and mechanical specifications within the DF9 series.

Key selection factors:

• The DF9-51S-1V(69) is classified as active product status, ensuring ongoing availability and manufacturing support.
• The DF9-51S-1V(69) is ROHS3 compliant, whereas the DF9-51S-1V(54) is RoHS non-compliant. This compliance difference is significant for applications subject to RoHS regulations.
• Both parts maintain REACH unaffected status and EAR99 export classification.
• The DF9-51S-1V(69) is supplied in Tape & Reel packaging, suitable for automated assembly processes.
• Contact finish thickness is specified for the DF9-51S-1V(69) at 8.00µin (0.203µm), providing documented durability characteristics.

Frequently Asked Questions (FAQ)

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

A: Yes. Both connectors share identical mechanical dimensions, pitch, number of positions, mounting type, and board interface specifications. They are fully interchangeable at the mechanical level.

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

A: The primary differences are product status (obsolete vs. active), RoHS compliance classification (non-compliant vs. ROHS3 compliant), packaging format (unspecified vs. Tape & Reel), and documented contact finish thickness. The electrical and mechanical performance characteristics are equivalent.

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

A: Yes. The DF9-51S-1V(69) is a direct functional equivalent. The improved RoHS compliance status makes it suitable for new designs and production runs where regulatory compliance is required.

Q: What does the (54) and (69) designation indicate?

A: These designations represent different manufacturing or packaging variants within the DF9-51S-1V connector family. The (69) variant is the current active production version.

Q: Are there any compatibility concerns with PCB assembly equipment?

A: No. Both parts are surface mount connectors with identical footprints and mounting specifications. The Tape & Reel packaging of the DF9-51S-1V(69) is standard for automated pick-and-place assembly processes.

Q: What is the moisture sensitivity level for these connectors?

A: Both parts are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.