DF1B-6DP-2.5DSA Equivalent & Substitute Parts

Part Overview

The DF1B-6DP-2.5DSA is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting with 6 positions at 2.5mm pitch. This connector features a shrouded 4-wall design with push-pull fastening and solder termination for board-to-cable/wire applications. The main part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and component procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	DF1B-6DP-2.5DSA
Manufacturer	Hirose Electric Co Ltd
Series	DF1B
Connector Type	Header
Number of Positions	6
Pitch - Mating	0.098" (2.50mm)
Number of Rows	2
Row Spacing - Mating	0.098" (2.50mm)
Mounting Type	Through Hole
Shrouding	Shrouded - 4 Wall
Fastening Type	Push-Pull
Voltage Rating	250V
Operating Temperature	-35°C ~ 85°C
Material Flammability Rating	UL94 V-0
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the DF1B-6DP-2.5DSA is determined by strict equivalence across the following critical parameters:

Connector type, contact type, and pin configuration (Header, Male Pin, 6 positions)
Pitch and row spacing (0.098" / 2.50mm)
Physical form factor (Shrouded - 4 Wall, Through Hole mounting)
Electrical ratings (250V, UL94 V-0)
Operating temperature range (-35°C ~ 85°C)
Termination method (Solder)
Fastening mechanism (Push-Pull)

The identified substitutes maintain full electrical and mechanical compatibility with the original part specification. Variations in packaging format, product status, and contact finish do not affect functional interchangeability in the application.

Parameter Comparison

Parameter	DF1B-6DP-2.5DSA (Main)	DF1BZ-6DP-2.5DSA (Direct Substitute)	DF1B-6DP-2.5DSA(01) (MFR Recommended)
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Hirose Electric Co Ltd
Series	DF1B	DF1B	DF1B
Connector Type	Header	Header	Header
Number of Positions	6	6	6
Pitch - Mating	0.098" (2.50mm)	0.098" (2.50mm)	0.098" (2.50mm)
Number of Rows	2	2	2
Row Spacing - Mating	0.098" (2.50mm)	0.098" (2.50mm)	0.098" (2.50mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Fastening Type	Push-Pull	Push-Pull	Push-Pull
Contact Material	Brass	Brass	Brass
Contact Finish - Mating	Tin	Tin	Gold
Voltage Rating	250V	250V	250V
Operating Temperature	-35°C ~ 85°C	-35°C ~ 85°C	-35°C ~ 85°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	-	Tray	Bulk

Engineering Selection Recommendations

Both substitute parts maintain full electrical and mechanical compatibility with the original DF1B-6DP-2.5DSA specification. Selection between substitutes should be based on the following factors:

DF1BZ-6DP-2.5DSA is classified as active product status with ROHS3 compliance and tray packaging. This part is suitable for applications requiring current regulatory compliance and standard production volumes.

DF1B-6DP-2.5DSA(01) is the manufacturer-recommended substitute, also active with ROHS3 compliance and bulk packaging. This variant features gold contact finish on the mating surface, compared to tin finish on the main part and direct substitute. Gold plating provides enhanced corrosion resistance and contact reliability in applications subject to environmental exposure or extended storage periods.

The original DF1B-6DP-2.5DSA is obsolete and should not be specified for new designs. Both active substitutes are functionally equivalent and available in production quantities.

Frequently Asked Questions (FAQ)

Q: Can DF1BZ-6DP-2.5DSA and DF1B-6DP-2.5DSA(01) be used interchangeably with the original DF1B-6DP-2.5DSA?

A: Yes. Both substitutes maintain identical electrical ratings, mechanical dimensions, pitch, row spacing, mounting type, and fastening mechanism. The connectors are fully interchangeable at the board and cable interface level.

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

A: The primary differences are product status, packaging format, and contact finish. DF1BZ-6DP-2.5DSA uses tin contact finish and tray packaging. DF1B-6DP-2.5DSA(01) uses gold contact finish and bulk packaging. Both are ROHS3 compliant and active products.

Q: Why does DF1B-6DP-2.5DSA(01) have gold plating instead of tin?

A: Gold plating provides superior corrosion resistance and contact reliability compared to tin finish. This is specified in applications requiring extended shelf life, harsh environmental conditions, or enhanced contact durability.

Q: Are there any compatibility issues with existing PCB designs using the original part?

A: No. The substitute parts are pin-compatible and mechanically identical. Existing PCB footprints and cable assemblies designed for DF1B-6DP-2.5DSA will accept both substitute parts without modification.

Q: What is the significance of the packaging difference between the substitutes?

A: Tray packaging (DF1BZ-6DP-2.5DSA) is standard for moderate production volumes and automated assembly. Bulk packaging (DF1B-6DP-2.5DSA(01)) is used for high-volume manufacturing. Packaging does not affect electrical or mechanical performance.

Q: Why is the original part marked as obsolete?

A: The DF1B-6DP-2.5DSA is no longer in active production. Hirose Electric Co Ltd has transitioned to the active variants DF1BZ-6DP-2.5DSA and DF1B-6DP-2.5DSA(01) to meet current regulatory requirements and manufacturing standards.

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