DF1B-3P-2.5DS Equivalent & Substitute Parts

Part Overview

The DF1B-3P-2.5DS is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole, right-angle mounting with 3 positions at 2.5mm pitch. This connector features shrouded 4-wall construction with push-pull fastening and solder termination for board-to-cable/wire applications. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and component sourcing.

Key Parameters

Parameter	Value
Manufacturer Part Number	DF1B-3P-2.5DS
Manufacturer	Hirose Electric Co Ltd
Series	DF1B
Connector Type	Header
Contact Type	Male Pin
Number of Positions	3
Pitch - Mating	0.098" (2.50mm)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Solder
Fastening Type	Push-Pull
Operating Temperature	-35°C ~ 85°C
Voltage Rating	250V
Material Flammability Rating	UL94 V-0
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution for the DF1B-3P-2.5DS is determined by the following critical parameters: connector type (header), contact type (male pin), number of positions (3), mounting style (through-hole right-angle), shrouding configuration (4-wall), termination method (solder), and fastening type (push-pull). Parts are grouped into two categories based on pitch compatibility:

Category 1: Direct Pitch Match (2.5mm) Parts maintaining the original 2.5mm mating pitch provide direct mechanical and electrical compatibility with existing PCB layouts and mating connectors.

Category 2: Pitch Variation (2.54mm) Parts with 0.100" (2.54mm) pitch represent industry-standard spacing and may require PCB redesign but offer broader component availability and active product status.

Parameter Comparison

Parameter	DF1B-3P-2.5DS	DF1BZ-3P-2.5DS	DF1B-3P-2.5DS(01)	103361-1	3-102203-4	5-102523-2	5-103361-1
Manufacturer	Hirose	Hirose	Hirose	TE Connectivity	TE Connectivity	TE Connectivity	TE Connectivity
Connector Type	Header	Header	Header	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	3	3	3	3	3	3	3
Pitch - Mating	0.098" (2.50mm)	0.098" (2.50mm)	0.098" (2.50mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Operating Temperature	-35°C ~ 85°C	-35°C ~ 85°C	-35°C ~ 85°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Product Status	Obsolete	Active	Active	Active	Active	Discontinued at DiGi Electronics	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	Not applicable	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Voltage Rating	250V	150V	250V	Not specified	Not specified	Not specified	Not specified
Contact Finish - Mating	Tin	Tin	Gold	Gold	Gold	Tin	Gold
Current Rating	Not specified	Not specified	Not specified	3A	3A	3A	3A
Inventory Status	1230 Pcs	1027 Pcs	2378 Pcs	1026 Pcs	3155 Pcs	968 Pcs	7137 Pcs

Engineering Selection Recommendations

For Direct Replacement (No PCB Modification Required):

DF1BZ-3P-2.5DS maintains identical pitch, mounting, and mechanical specifications as the original DF1B-3P-2.5DS. This part is active and ROHS3 compliant, providing the most straightforward substitution path. Note that the voltage rating is reduced to 150V compared to the original 250V specification.

DF1B-3P-2.5DS(01) is the manufacturer-recommended active replacement, maintaining the original 250V voltage rating and 2.5mm pitch. This part features gold mating contact finish and is ROHS3 compliant with higher inventory availability (2378 pcs).

For Pitch-Compatible Alternatives (PCB Redesign Required):

The TE Connectivity AMPMODU Mod II series (103361-1, 3-102203-4, 5-103361-1) operates at 0.100" (2.54mm) pitch and requires PCB layout modification. These parts offer extended operating temperature range (-65°C to 105°C), specified current rating (3A), and active product status. The 5-103361-1 variant is recommended for new designs due to active status and highest inventory (7137 pcs).

5-102523-2 is discontinued at DiGi Electronics and should not be selected for new applications despite ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can DF1BZ-3P-2.5DS be used as a direct drop-in replacement for DF1B-3P-2.5DS?

A: Yes, mechanically and electrically. Both maintain 2.5mm pitch, 3-position configuration, through-hole right-angle mounting, and 4-wall shrouding. The primary difference is reduced voltage rating (150V vs. 250V) and improved RoHS compliance status.

Q: What is the key difference between Hirose DF1B series and TE Connectivity AMPMODU Mod II series?

A: The primary difference is mating pitch: Hirose DF1B uses 2.5mm (0.098") while AMPMODU Mod II uses 2.54mm (0.100"). This 0.04mm difference requires PCB redesign and new mating connectors. AMPMODU parts offer specified current rating (3A) and extended temperature range (-65°C to 105°C).

Q: Is DF1B-3P-2.5DS(01) compatible with existing DF1B-3P-2.5DS installations?

A: Yes. Both parts share identical pitch, position count, mounting style, and shrouding. The DF1B-3P-2.5DS(01) is the active production equivalent with gold mating finish and ROHS3 compliance.

Q: Which substitute part has the best long-term availability?

A: 5-103361-1 (TE Connectivity AMPMODU Mod II) has the highest inventory (7137 pcs) and active product status. However, this requires 2.54mm pitch accommodation. For 2.5mm pitch retention, DF1B-3P-2.5DS(01) is recommended with 2378 pcs in stock.

Q: Are there voltage rating considerations when selecting substitutes?

A: Yes. The original DF1B-3P-2.5DS is rated 250V. DF1BZ-3P-2.5DS is rated 150V. TE Connectivity AMPMODU parts do not specify voltage rating. Verify application voltage requirements before selection.

Q: What packaging formats are available?

A: DF1BZ-3P-2.5DS is supplied in Bulk packaging. DF1B-3P-2.5DS(01) is Bulk. TE Connectivity parts are supplied in Tube packaging (103361-1, 3-102203-4, 5-103361-1). 5-102523-2 packaging is not specified.

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