DF1B-36DP-2.5DSA Equivalent & Substitute Parts

Part Overview

The DF1B-36DP-2.5DSA is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting in board-to-cable/wire applications. This 36-position connector operates at 250V with a 2.5mm pitch and features shrouded 4-wall construction with push-pull fastening. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

DF1B-36DP-2.5DSA

Hirose Electric Co LtdIn Stock: 901DF1B-36DP-2.5DSA Datasheet

Current PartRFQ

DF1BZ-36DP-2.5DSA

Hirose Electric Co LtdIn Stock: 861DF1BZ-36DP-2.5DSA Datasheet

DirectRFQ

DF1B-36DP-2.5DSA(01)

Hirose Electric Co LtdIn Stock: 1174DF1B-36DP-2.5DSA(01) Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the DF1B-36DP-2.5DSA is determined by strict equivalence across the following critical parameters:

• Connector Type & Series: Header connector from the DF1B series
• Position Count & Configuration: 36 positions arranged in 2 rows
• Pitch Specification: 0.098" (2.50mm) mating pitch with identical row spacing
• Mounting & Termination: Through-hole solder termination with push-pull fastening
• Electrical Rating: 250V voltage rating
• Physical Envelope: Shrouded 4-wall construction with 14mm mated stacking height
• Environmental Compliance: UL94 V-0 flammability rating, operating range -35°C to 85°C

The identified substitutes maintain full electrical and mechanical compatibility across all specified parameters. Differences in product status, packaging format, and contact finish specifications are noted in the parameter comparison table.

Parameter Comparison

Engineering Selection Recommendations

DF1BZ-36DP-2.5DSA is the direct manufacturer equivalent offering active product status with RoHS compliance. This substitute maintains identical electrical and mechanical specifications to the obsolete DF1B-36DP-2.5DSA, with tin contact finish matching the original part. Selection of this variant is appropriate for applications requiring RoHS-compliant components without modification to existing designs.

DF1B-36DP-2.5DSA(01) is the manufacturer-recommended substitute, providing active product status and RoHS compliance with enhanced contact durability through gold plating on mating surfaces. The gold contact finish (8.00µin / 0.203µm thickness) provides superior corrosion resistance and contact reliability compared to tin finish. This variant is suitable for applications requiring extended service life or operation in corrosive environments while maintaining full mechanical and electrical compatibility.

Both substitutes are available in tray packaging and carry identical certifications (UL94 V-0, EAR99 ECCN classification). Selection between the two substitutes depends on contact finish requirements and environmental operating conditions.

Frequently Asked Questions (FAQ)

Q: Are DF1BZ-36DP-2.5DSA and DF1B-36DP-2.5DSA(01) fully interchangeable with the obsolete DF1B-36DP-2.5DSA?

A: Yes. Both substitutes maintain identical pitch (2.5mm), position count (36), row configuration (2 rows), voltage rating (250V), operating temperature range (-35°C to 85°C), and physical envelope specifications. They are mechanically and electrically interchangeable without PCB redesign or connector housing modification.

Q: What is the difference between the two substitute parts?

A: The primary difference is contact finish. DF1BZ-36DP-2.5DSA uses tin plating on mating contacts, matching the original part. DF1B-36DP-2.5DSA(01) uses gold plating (8.00µin thickness) on mating contacts, providing enhanced corrosion resistance and contact reliability. Both are RoHS compliant and active products.

Q: Does the gold contact finish on DF1B-36DP-2.5DSA(01) affect compatibility?

A: No. The gold finish is applied to the mating contact surface only and does not affect mechanical fit, electrical performance, or compatibility with existing mating connectors. The contact geometry and electrical properties remain identical.

Q: What is the significance of the RoHS compliance difference?

A: The original DF1B-36DP-2.5DSA is RoHS non-compliant. Both substitutes (DF1BZ-36DP-2.5DSA and DF1B-36DP-2.5DSA(01)) are RoHS compliant, meeting EU Directive 2011/65/EU requirements. Selection of RoHS-compliant substitutes is mandatory for applications subject to RoHS regulations.

Q: Are there packaging considerations when switching from the obsolete part?

A: The original part packaging is unspecified. Both substitutes are supplied in tray packaging, which is standard for production quantities. Tray packaging is compatible with automated assembly equipment and provides equivalent protection during storage and transport.

Q: Which substitute should be selected for new designs?

A: DF1B-36DP-2.5DSA(01) is the manufacturer-recommended choice for new designs, offering active product status, RoHS compliance, and gold contact finish for enhanced reliability. DF1BZ-36DP-2.5DSA is appropriate for cost-sensitive applications where tin contact finish is acceptable.