DF1B-12P-2.5DS Equivalent & Substitute Parts

Part Overview

The DF1B-12P-2.5DS is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole, right-angle board-to-cable/wire applications with 12 positions at 0.098" (2.50mm) pitch. The part is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and ongoing production requirements. Substitute parts maintain functional compatibility while offering improved availability and compliance status.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	12
Pitch - Mating	0.098" (2.50mm)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Solder
Voltage Rating	250V
Operating Temperature	-35°C ~ 85°C
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Connector type (Header)
Contact type (Male Pin)
Number of positions (12)
Pitch - mating (0.098" / 2.50mm)
Mounting type (Through Hole, Right Angle)
Shrouding configuration (Shrouded - 4 Wall)
Termination method (Solder)
Material flammability rating (UL94 V-0)

The substitute parts listed maintain these core parameters, ensuring mechanical and electrical compatibility with applications designed for the DF1B-12P-2.5DS. Variations in secondary parameters such as contact finish, contact material, insulation material, and voltage rating are acceptable within the scope of equivalent substitution.

Parameter Comparison

Parameter	DF1B-12P-2.5DS	DF1BZ-12P-2.5DS	DF1B-12P-2.5DS(01)	0534261210
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Molex
Product Status	Obsolete	Active	Active	Active
Connector Type	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	12	12	12	12
Pitch - Mating	0.098" (2.50mm)	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	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder	Solder	Kinked Pin, Solder
Contact Length - Mating	0.177" (4.50mm)	0.177" (4.50mm)	0.177" (4.50mm)	0.157" (4.00mm)
Contact Length - Post	0.142" (3.60mm)	0.142" (3.60mm)	0.142" (3.60mm)	0.134" (3.40mm)
Insulation Height	0.224" (5.69mm)	0.224" (5.69mm)	0.224" (5.69mm)	0.264" (6.70mm)
Contact Shape	Square	Square	Square	Circular
Contact Finish - Mating	Tin	Tin	Gold	Tin
Contact Material	Brass	Brass	Brass	Phosphor Bronze
Insulation Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon	Polyamide (PA), Nylon	Polybutylene Terephthalate (PBTP), Glass Filled
Operating Temperature	-35°C ~ 85°C	-35°C ~ 85°C	-35°C ~ 85°C	-40°C ~ 105°C
Voltage Rating	250V	150V	250V	250V
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

DF1BZ-12P-2.5DS is the direct Hirose equivalent with active product status and ROHS3 compliance. This part maintains identical mechanical dimensions and contact geometry to the obsolete DF1B-12P-2.5DS. The voltage rating is reduced to 150V; applications requiring 250V operation should use DF1B-12P-2.5DS(01) instead.

DF1B-12P-2.5DS(01) is the manufacturer-recommended upgrade from the obsolete DF1B-12P-2.5DS, offering active product status, RoHS compliance, and 250V voltage rating. The mating contact finish is gold rather than tin, providing enhanced corrosion resistance. This part is the preferred choice for direct replacement in existing designs.

0534261210 (Molex Mini-Lock 53426 series) is a cross-manufacturer substitute suitable for applications where Molex connectors are acceptable. This part offers extended operating temperature range (-40°C ~ 105°C) and ROHS3 compliance. Mechanical differences include circular contact shape, increased insulation height (0.264" vs 0.224"), and kinked pin termination. Board layout and mating interface compatibility must be verified before selection.

Frequently Asked Questions (FAQ)

Q: Can DF1BZ-12P-2.5DS replace DF1B-12P-2.5DS in all applications?

A: DF1BZ-12P-2.5DS is mechanically and electrically compatible for applications operating at 150V or below. Applications requiring 250V operation must use DF1B-12P-2.5DS(01) instead.

Q: What is the primary difference between DF1B-12P-2.5DS(01) and DF1BZ-12P-2.5DS?

A: DF1B-12P-2.5DS(01) maintains the 250V voltage rating of the original part and features gold-plated mating contacts. DF1BZ-12P-2.5DS has a reduced 150V voltage rating and tin-plated mating contacts. Both are active products with RoHS compliance.

Q: Is the Molex 0534261210 a direct mechanical replacement?

A: The Molex 0534261210 maintains the same 12-position, 2.50mm pitch configuration and through-hole right-angle mounting. However, it has a larger insulation height (0.264" vs 0.224"), circular contact shape instead of square, and kinked pin termination. PCB footprint and mating interface compatibility must be confirmed.

Q: Are all substitute parts RoHS compliant?

A: DF1BZ-12P-2.5DS and DF1B-12P-2.5DS(01) are RoHS compliant. The original DF1B-12P-2.5DS is RoHS non-compliant. The Molex 0534261210 is ROHS3 compliant.

Q: What is the inventory status of these parts?

A: DF1B-12P-2.5DS (obsolete) has 752 pcs in stock. DF1BZ-12P-2.5DS has 995 pcs. DF1B-12P-2.5DS(01) has 792 pcs. Molex 0534261210 has 32,293 pcs available.

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