DF1B-22DP-2.5DS Equivalent & Substitute Parts

Part Overview

The DF1B-22DP-2.5DS is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole, right-angle board-to-cable/wire applications. This 22-position connector with 2.5mm pitch features shrouded 4-wall construction and push-pull fastening. The main part is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring compatible interconnect solutions.

Key Parameters

Parameter	Value
Manufacturer Part Number	DF1B-22DP-2.5DS
Manufacturer	Hirose Electric Co Ltd
Series	DF1B
Connector Type	Header
Number of Positions	22
Number of Rows	2
Pitch - Mating	0.098" (2.50mm)
Row Spacing - Mating	0.098" (2.50mm)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Fastening Type	Push-Pull
Operating Temperature	-35°C ~ 85°C
Voltage Rating	250V
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution eligibility for the DF1B-22DP-2.5DS is determined by the following critical parameters:

Connector type, position count, and row configuration (22 positions, 2 rows)
Mating pitch and row spacing (0.098" / 2.50mm)
Mounting style (through-hole, right-angle)
Shrouding design (shrouded 4-wall)
Fastening mechanism (push-pull)
Operating temperature range (-35°C ~ 85°C)
Insulation material (Polyamide/Nylon)
Flammability rating (UL94 V-0)

The identified substitutes maintain these core parameters while differing in product status, RoHS compliance, contact finish specifications, and voltage ratings. These differences do not affect mechanical or electrical interchangeability within the specified operating parameters.

Parameter Comparison

Parameter	DF1B-22DP-2.5DS (Main)	DF1BZ-22DP-2.5DS (Substitute)	DF1B-22DP-2.5DS(01) (Substitute)
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Hirose Electric Co Ltd
Series	DF1B	DF1B	DF1B
Product Status	Obsolete	Active	Active
Number of Positions	22	22	22
Number of Rows	2	2	2
Pitch - Mating	0.098" (2.50mm)	0.098" (2.50mm)	0.098" (2.50mm)
Row Spacing - Mating	0.098" (2.50mm)	0.098" (2.50mm)	0.098" (2.50mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
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 Length - Mating	0.177" (4.50mm)	0.177" (4.50mm)	0.177" (4.50mm)
Contact Length - Post	0.130" (3.30mm)	0.130" (3.30mm)	0.130" (3.30mm)
Insulation Height	0.339" (8.61mm)	0.339" (8.61mm)	0.339" (8.61mm)
Contact Shape	Square	Square	Square
Contact Finish - Mating	Tin	Tin	Gold
Contact Material	Brass	Brass	Brass
Insulation Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon	Polyamide (PA), Nylon
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
Insulation Color	White	White	White
Voltage Rating	250V	150V	250V
RoHS Status	RoHS non-compliant	RoHS Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Inventory Status	808 Pcs New Original In Stock	959 Pcs New Original In Stock	1105 Pcs New Original In Stock

Engineering Selection Recommendations

Both substitute parts maintain full mechanical and electrical compatibility with the original DF1B-22DP-2.5DS within the specified operating parameters.

DF1BZ-22DP-2.5DS is an active product with RoHS compliance and tin contact finish. This part operates at 150V maximum voltage rating, which is lower than the original 250V specification. Selection of this part requires confirmation that the application voltage requirement does not exceed 150V.

DF1B-22DP-2.5DS(01) is an active product with RoHS compliance, gold contact finish, and maintains the original 250V voltage rating. The gold mating contact finish provides enhanced corrosion resistance compared to the tin finish of the original part. This part is recommended for applications requiring RoHS compliance without voltage derating.

Both active substitutes feature unlimited moisture sensitivity level (MSL 1) and identical operating temperature range, making them suitable for equivalent system integration.

Frequently Asked Questions (FAQ)

Q: Can DF1BZ-22DP-2.5DS be used as a direct replacement for DF1B-22DP-2.5DS?

A: DF1BZ-22DP-2.5DS is mechanically and electrically compatible for applications operating at 150V or below. The 150V voltage rating is lower than the original 250V specification. Verify that your application voltage requirement does not exceed 150V before selection.

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

A: Both tin and gold finishes are provided on the mating contacts. Gold finish offers enhanced corrosion resistance and is specified on DF1B-22DP-2.5DS(01). Tin finish is specified on the original part and DF1BZ-22DP-2.5DS. Contact finish selection depends on environmental exposure and corrosion resistance requirements.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both DF1BZ-22DP-2.5DS and DF1B-22DP-2.5DS(01) are RoHS compliant. The original DF1B-22DP-2.5DS is RoHS non-compliant. If RoHS compliance is required, either active substitute is acceptable within the specified voltage and finish parameters.

Q: Do all three parts have the same physical dimensions?

A: Yes. All three parts share identical mechanical specifications including insulation height (0.339" / 8.61mm), contact lengths, and overall form factor. They are mechanically interchangeable in through-hole, right-angle mounting applications.

Q: What is the significance of the MSL rating?

A: All three parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. These connectors do not require special moisture control during storage, handling, or assembly.

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