DF1BD-5P-2.5DSA(05) Equivalent & Substitute Parts

Part Overview

The DF1BD-5P-2.5DSA(05) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting in board-to-cable/wire applications. This 5-position connector operates at 250V with a 2.5mm pitch and features shrouded 4-wall construction with push-pull fastening. The part is currently in Last Time Buy status, indicating discontinued production. Identifying equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for existing applications.

Key Parameters

Parameter	Value
Manufacturer	Hirose Electric Co Ltd
Series	DF1B
Connector Type	Header
Contact Type	Male Pin
Number of Positions	5
Pitch - Mating	0.098" (2.50mm)
Mounting Type	Through Hole
Termination	Solder
Voltage Rating	250V
Operating Temperature	-35°C ~ 85°C
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

The DF1BZ-5P-2.5DSA qualifies as a direct substitute based on the following critical parameters:

Identical pitch (2.5mm) and position count (5)
Matching connector type (Header), contact type (Male Pin), and mounting method (Through Hole)
Equivalent voltage rating (250V) and operating temperature range (-35°C ~ 85°C)
Same material flammability rating (UL94 V-0) and RoHS compliance status
Identical termination method (Solder) and fastening type (Push-Pull)
Same contact material (Brass) and finish (Tin)
Equivalent insulation material (Polyamide/Nylon)

Differences in contact post length (3.00mm vs 3.60mm) and insulation height do not affect functional substitution within the DF1B series, as both maintain the same mating interface and electrical characteristics.

Parameter Comparison

Parameter	DF1BD-5P-2.5DSA(05)	DF1BZ-5P-2.5DSA
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd
Series	DF1B	DF1B
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Number of Positions	5	5
Pitch - Mating	0.098" (2.50mm)	0.098" (2.50mm)
Number of Rows	1	1
Style	Board to Cable/Wire	Board to Cable/Wire
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Fastening Type	Push-Pull	Push-Pull
Contact Length - Mating	0.177" (4.50mm)	0.177" (4.50mm)
Contact Length - Post	0.118" (3.00mm)	0.142" (3.60mm)
Contact Shape	Square	Square
Contact Finish - Mating	Tin	Tin
Contact Finish Thickness - Mating	39.4µin (1.00µm)	39.4µin (1.00µm)
Contact Finish - Post	Tin	Tin
Contact Material	Brass	Brass
Insulation Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon
Operating Temperature	-35°C ~ 85°C	-35°C ~ 85°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Insulation Color	White	White
Voltage Rating	250V	250V
Mated Stacking Heights	14mm	14mm
RoHS Status	RoHS Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
Product Status	Last Time Buy	Active

Engineering Selection Recommendations

The DF1BZ-5P-2.5DSA is the direct substitute for the DF1BD-5P-2.5DSA(05). Selection of the DF1BZ variant is supported by the following factors:

Both parts maintain identical electrical and mechanical interfaces within the DF1B series
The DF1BZ is in Active product status, ensuring ongoing availability and supply chain stability
ROHS3 compliance of the substitute exceeds the RoHS Compliant status of the original part
Inventory availability of the DF1BZ (3013 pcs) significantly exceeds that of the DF1BD (685 pcs)
Contact post length variation (3.60mm vs 3.00mm) does not affect PCB mounting or mating interface compatibility
Both parts carry identical certifications (UL94 V-0, MSL 1) and environmental ratings

Frequently Asked Questions (FAQ)

Q: Can the DF1BZ-5P-2.5DSA be used as a direct replacement for the DF1BD-5P-2.5DSA(05)?

A: Yes. Both connectors share identical mating pitch (2.5mm), position count (5), voltage rating (250V), operating temperature range (-35°C to 85°C), and contact geometry. The difference in contact post length does not affect functional compatibility in standard through-hole PCB applications.

Q: What is the significance of the different contact post lengths?

A: The DF1BD features 3.00mm post length while the DF1BZ features 3.60mm post length. This difference accommodates varying PCB thicknesses and solder joint requirements. Both lengths are compatible with standard through-hole soldering processes and do not affect the mating interface.

Q: Why is the DF1BD listed as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has discontinued production of this part number. The DF1BZ-5P-2.5DSA remains in Active status and is the recommended alternative for new designs and ongoing production requirements.

Q: Are there compliance differences between the two parts?

A: The DF1BD is RoHS Compliant while the DF1BZ is ROHS3 Compliant. ROHS3 represents an updated compliance standard and does not create incompatibility. Both parts meet UL94 V-0 flammability requirements and carry MSL 1 moisture sensitivity ratings.

Q: What is the inventory situation for each part?

A: The DF1BD-5P-2.5DSA(05) has 685 pcs available. The DF1BZ-5P-2.5DSA has 3013 pcs available, providing significantly greater supply security for production planning.

Q: Are there any mechanical mounting differences?

A: Both connectors use identical through-hole mounting with push-pull fastening and shrouded 4-wall construction. Mated stacking height is 14mm for both variants. PCB layout and assembly procedures remain unchanged.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message