DF9B-31P-1V(22) Equivalent & Substitute Parts

Part Overview

The DF9B-31P-1V(22) is a 31-position rectangular connector header manufactured by Hirose Electric Co Ltd, designed for surface mount applications with center strip contacts and tin plating. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement planning. The substitute part maintains identical electrical and mechanical specifications while offering improved compliance status and active product availability.

Substiute Parts

DF9B-31P-1V(22)

Hirose Electric Co LtdIn Stock: 1229DF9B-31P-1V(22) Datasheet

Current PartRFQ

DF9B-31P-1V(32)

Hirose Electric Co LtdIn Stock: 3311DF9B-31P-1V(32) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The DF9B-31P-1V(32) qualifies as a direct substitute for the DF9B-31P-1V(22) based on the following critical parameters:

• Connector Type & Configuration: Both parts are 31-position headers with center strip contacts in the DF9 series
• Electrical Interface: Identical pitch (1.00mm), row count (2), and position count (31)
• Mechanical Compatibility: Matching mated stacking height (4.3mm) and height above board (3.30mm)
• Contact Material: Both use tin plating for solder compatibility
• Mounting Method: Both are surface mount with solder retention features

The substitution is valid across all electrical and mechanical interfaces. The primary differences are packaging format and compliance certifications, which do not affect functional compatibility in the application circuit.

Parameter Comparison

Engineering Selection Recommendations

The DF9B-31P-1V(32) is the appropriate selection for new designs and procurement of the DF9B-31P-1V(22). This substitution is supported by:

• Active Product Status: The substitute part is actively manufactured and stocked, ensuring long-term availability and supply chain continuity
• Regulatory Compliance: The DF9B-31P-1V(32) meets ROHS3 compliance requirements, whereas the original part is non-compliant
• Functional Equivalence: All electrical and mechanical parameters are identical, ensuring direct compatibility without circuit redesign
• Moisture Sensitivity: Both parts share MSL 1 rating, indicating no special handling requirements

For applications currently using DF9B-31P-1V(22), transition to DF9B-31P-1V(32) is supported without modification to PCB layouts, mating connectors, or electrical specifications.

Frequently Asked Questions (FAQ)

Q: Are the DF9B-31P-1V(22) and DF9B-31P-1V(32) mechanically interchangeable?

A: Yes. Both parts have identical pitch (1.00mm), position count (31), row configuration (2), mated stacking height (4.3mm), and height above board (3.30mm). PCB footprints and mating connector interfaces are identical.

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

A: The primary differences are product status (obsolete vs. active), packaging format (unspecified vs. Tape & Reel), and regulatory compliance (RoHS non-compliant vs. ROHS3 compliant). Electrical and mechanical specifications are identical.

Q: Can I use DF9B-31P-1V(32) as a direct replacement in existing designs?

A: Yes. The substitute part maintains all electrical and mechanical specifications required for functional compatibility. No PCB redesign or connector changes are necessary.

Q: Does the contact finish thickness difference affect compatibility?

A: No. The DF9B-31P-1V(32) specifies contact finish thickness of 39.4µin (1.00µm), while the original part does not specify this parameter. Both use tin plating and are compatible with standard solder reflow processes.

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

A: Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard storage and handling procedures apply.

Q: Is the Tape & Reel packaging compatible with my assembly process?

A: Tape & Reel packaging is standard for surface mount components and is compatible with automated pick-and-place assembly equipment. Confirm your assembly process specifications with your manufacturing partner.