DF1B-6P-2.5DSA Equivalent & Substitute Parts

Part Overview

The DF1B-6P-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 shrouded 4-wall construction, push-pull fastening, and solder termination for board-to-cable/wire applications. The part is currently listed as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Manufacturer Part Number	DF1B-6P-2.5DSA
Manufacturer	Hirose Electric Co Ltd
Series	DF1B
Connector Type	Header
Number of Positions	6
Pitch - Mating	0.098" (2.50mm)
Mounting Type	Through Hole
Termination	Solder
Voltage Rating	250V
Operating Temperature	-35°C ~ 85°C
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the DF1B-6P-2.5DSA is determined by the following critical parameters:

Connector type (Header)
Number of positions (6)
Pitch - mating (0.098" / 2.50mm)
Mounting type (Through Hole)
Termination method (Solder)
Shrouding configuration (Shrouded - 4 Wall)
Fastening type (Push-Pull)
Voltage rating (250V)
Operating temperature range (-35°C ~ 85°C)
Insulation material (Polyamide/Nylon)
Material flammability rating (UL94 V-0)

The identified substitutes maintain all critical electrical and mechanical parameters. Variations in contact finish and product status are noted but do not affect functional compatibility.

Parameter Comparison

Parameter	DF1B-6P-2.5DSA (Main)	DF1BZ-6P-2.5DSA	DF1B-6P-2.5DSA(01)
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Hirose Electric Co Ltd
Series	DF1B	DF1B	DF1B
Product Status	Obsolete	Active	Active
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)
Mounting Type	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Fastening Type	Push-Pull	Push-Pull	Push-Pull
Contact Type	Male Pin	Male Pin	Male Pin
Contact Shape	Square	Square	Square
Contact Material	Brass	Brass	Brass
Contact Finish - Mating	Tin	Tin	Gold
Insulation Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon	Polyamide (PA), Nylon
Insulation Color	White	White	White
Operating Temperature	-35°C ~ 85°C	-35°C ~ 85°C	-35°C ~ 85°C
Voltage Rating	250V	250V	250V
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Both DF1BZ-6P-2.5DSA and DF1B-6P-2.5DSA(01) are functionally equivalent substitutes for the obsolete DF1B-6P-2.5DSA. Selection between these alternatives depends on regulatory and compliance requirements:

DF1BZ-6P-2.5DSA is recommended for applications requiring ROHS3 compliance with tin contact finish. This part maintains the original tin plating specification and is actively manufactured.

DF1B-6P-2.5DSA(01) is the manufacturer-recommended substitute, offering ROHS3 compliance with gold contact finish on mating surfaces. Gold plating provides enhanced corrosion resistance and contact reliability compared to tin finish.

Both substitutes are currently in active production status, ensuring long-term availability and supply chain stability compared to the obsolete original part.

Frequently Asked Questions (FAQ)

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

A: Yes. Both substitutes maintain identical electrical and mechanical specifications including connector type, position count, pitch, mounting method, termination, shrouding, and fastening mechanism. The primary differences are product status (active vs. obsolete) and contact finish material.

Q: What is the difference between tin and gold contact finishes?

A: The original DF1B-6P-2.5DSA uses tin contact finish. The DF1B-6P-2.5DSA(01) substitute uses gold contact finish with 8.00µin (0.203µm) thickness. Gold provides superior corrosion resistance and lower contact resistance over extended service life. Tin finish is adequate for standard applications but may oxidize under certain environmental conditions.

Q: Are there RoHS compliance differences between these parts?

A: Yes. The original DF1B-6P-2.5DSA is RoHS non-compliant. Both substitutes, DF1BZ-6P-2.5DSA and DF1B-6P-2.5DSA(01), are ROHS3 compliant, meeting current regulatory requirements for new designs and applications subject to RoHS directives.

Q: What is the packaging difference between DF1BZ-6P-2.5DSA and DF1B-6P-2.5DSA(01)?

A: DF1BZ-6P-2.5DSA is supplied in bulk packaging. DF1B-6P-2.5DSA(01) is also supplied in bulk packaging. Both are suitable for high-volume manufacturing and assembly operations.

Q: Is the manufacturer-recommended substitute always the best choice?

A: The manufacturer-recommended substitute DF1B-6P-2.5DSA(01) offers gold contact finish and is explicitly endorsed by Hirose Electric Co Ltd. However, DF1BZ-6P-2.5DSA remains a valid functional equivalent. Selection should be based on specific application requirements, environmental conditions, and cost considerations.

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