DF1B-12DP-2.5DS Equivalent & Substitute Parts

Part Overview

The DF1B-12DP-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 connector features 12 positions arranged in 2 rows with 0.098" (2.50mm) pitch spacing and push-pull fastening. The part is currently listed as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and component procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	DF1B-12DP-2.5DS
Manufacturer	Hirose Electric Co Ltd
Series	DF1B
Connector Type	Header
Number of Positions	12
Number of Rows	2
Pitch - Mating	0.098" (2.50mm)
Row Spacing - Mating	0.098" (2.50mm)
Mounting Type	Through Hole, Right Angle
Contact Type	Male Pin
Shrouding	Shrouded - 4 Wall
Fastening Type	Push-Pull
Operating Temperature	-35°C ~ 85°C
Voltage Rating	250V
Material Flammability Rating	UL94 V-0
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the DF1B-12DP-2.5DS is determined by strict equivalence across the following critical parameters:

Connector type, contact type, and fastening mechanism (Header, Male Pin, Push-Pull)
Physical configuration: 12 positions in 2 rows with 0.098" (2.50mm) pitch and row spacing
Mounting style: Through-hole, right-angle orientation
Shrouding design: Shrouded with 4-wall construction
Insulation material and flammability rating: Polyamide (PA), Nylon with UL94 V-0 compliance
Operating temperature range: -35°C ~ 85°C
Termination method: Solder

The two substitute parts identified—DF1BZ-12DP-2.5DS and DF1B-12DP-2.5DS(01)—maintain full mechanical and electrical compatibility with the original part across all critical mating and mounting dimensions. Both substitutes are currently in active product status, ensuring long-term availability.

Parameter Comparison

Parameter	DF1B-12DP-2.5DS (Original)	DF1BZ-12DP-2.5DS (Substitute)	DF1B-12DP-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	12	12	12
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
Contact Type	Male Pin	Male Pin	Male Pin
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Fastening Type	Push-Pull	Push-Pull	Push-Pull
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 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
Contact Finish - Mating	Tin	Tin	Gold
RoHS Status	RoHS non-compliant	RoHS Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

Both substitute parts provide direct functional replacement for the obsolete DF1B-12DP-2.5DS across all mechanical and electrical mating parameters.

DF1BZ-12DP-2.5DS is the direct manufacturer equivalent with active product status. This part maintains identical mechanical dimensions and contact geometry. The primary difference is a reduced voltage rating of 150V compared to the original 250V specification. This substitute is RoHS compliant and recommended for new designs requiring environmental compliance.

DF1B-12DP-2.5DS(01) is the manufacturer-recommended upgrade path. This part maintains the original 250V voltage rating and active product status. The contact finish differs, featuring gold plating on mating contacts instead of tin. This substitute is RoHS compliant and provides enhanced contact reliability through superior corrosion resistance.

Both substitutes are available in bulk packaging and carry unlimited moisture sensitivity rating (MSL 1). Selection between the two should be based on voltage requirement compatibility and contact finish specifications for the target application.

Frequently Asked Questions (FAQ)

Q: Can DF1BZ-12DP-2.5DS be used as a direct replacement for DF1B-12DP-2.5DS?

A: DF1BZ-12DP-2.5DS is mechanically and electrically compatible for applications operating at or below 150V. The reduced voltage rating is the only functional difference. All mating dimensions, contact geometry, pitch spacing, and mounting characteristics are identical.

Q: What is the difference between DF1B-12DP-2.5DS(01) and the original part?

A: DF1B-12DP-2.5DS(01) maintains the original 250V voltage rating and all mechanical specifications. The contact finish differs: gold plating on mating contacts instead of tin. This provides improved corrosion resistance and contact reliability.

Q: Are both substitutes RoHS compliant?

A: Yes. Both DF1BZ-12DP-2.5DS and DF1B-12DP-2.5DS(01) are RoHS compliant, whereas the original DF1B-12DP-2.5DS is RoHS non-compliant.

Q: Do the substitutes maintain the same pitch and row spacing?

A: Yes. Both substitutes maintain 0.098" (2.50mm) pitch and row spacing, ensuring full mechanical compatibility with existing mating connectors and PCB layouts.

Q: What packaging is available for the substitute parts?

A: Both substitutes are available in bulk packaging. Current inventory includes 993 units for DF1BZ-12DP-2.5DS and 953 units for DF1B-12DP-2.5DS(01).

Q: Which substitute should be selected for new designs?

A: Selection depends on application voltage requirements. For applications requiring 250V rating, DF1B-12DP-2.5DS(01) is recommended. For applications operating at 150V or below, DF1BZ-12DP-2.5DS is suitable. Both are active products with long-term availability assurance.

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