DF1B-10DP-2.5DSA Equivalent & Substitute Parts

Part Overview

The DF1B-10DP-2.5DSA is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting with 10 positions at 2.5mm pitch. This connector features a shrouded 4-wall design with push-pull fastening and solder termination for board-to-cable/wire applications. 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-10DP-2.5DSA
Manufacturer	Hirose Electric Co Ltd
Series	DF1B
Connector Type	Header
Number of Positions	10
Pitch - Mating	0.098" (2.50mm)
Number of Rows	2
Row Spacing - Mating	0.098" (2.50mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Voltage Rating	250V
Operating Temperature	-35°C ~ 85°C
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution eligibility for the DF1B-10DP-2.5DSA is determined by the following critical parameters:

Connector type, contact type, and pin configuration (Header, Male Pin, 10 positions)
Pitch and row spacing (0.098" / 2.50mm)
Mounting method and termination (Through Hole, Solder)
Fastening mechanism (Push-Pull)
Electrical ratings (250V, -35°C ~ 85°C operating range)
Physical form factor (Shrouded 4-wall design, 2-row configuration)

Two substitute parts meet these criteria within the DF1B series:

DF1BZ-10DP-2.5DSA - Direct manufacturer equivalent with identical electrical and mechanical specifications
DF1B-10DP-2.5DSA(01) - Manufacturer-recommended variant with enhanced contact finish specification

Parameter Comparison

Parameter	DF1B-10DP-2.5DSA (Main)	DF1BZ-10DP-2.5DSA	DF1B-10DP-2.5DSA(01)
Product Status	Obsolete	Active	Active
Connector Type	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin
Number of Positions	10	10	10
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	Through Hole	Through Hole
Termination	Solder	Solder	Solder
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	0.142" (3.60mm)	0.142" (3.60mm)	0.142" (3.60mm)
Overall Contact Length	0.417" (10.60mm)	0.417" (10.60mm)	0.417" (10.60mm)
Insulation Height	0.374" (9.50mm)	0.374" (9.50mm)	0.374" (9.50mm)
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
Features	Keying Slot	Keying Slot	Keying Slot
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
Voltage Rating	250V	250V	250V
Mated Stacking Heights	14mm	14mm	14mm
Insulation Color	White	White	White
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Inventory Status	645 Pcs New Original In Stock	2925 Pcs New Original In Stock	1700 Pcs New Original In Stock

Engineering Selection Recommendations

Both substitute parts provide full functional equivalence to the DF1B-10DP-2.5DSA with the following distinctions:

DF1BZ-10DP-2.5DSA is the direct equivalent offering identical specifications with active product status and ROHS3 compliance. This part is recommended for applications requiring regulatory compliance with modern environmental standards and where tin contact finish is acceptable.

DF1B-10DP-2.5DSA(01) is the manufacturer-recommended variant featuring gold contact finish (8.00µin / 0.203µm thickness) on mating contacts, providing enhanced corrosion resistance and contact reliability. This variant is recommended for applications requiring superior contact durability or operating in corrosive environments. ROHS3 compliance is maintained.

Both substitutes are actively manufactured and available in higher inventory quantities than the obsolete original part, ensuring supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can DF1BZ-10DP-2.5DSA be used as a direct replacement for DF1B-10DP-2.5DSA?

A: Yes. Both parts share identical electrical and mechanical specifications including connector type, pin count, pitch, mounting method, and operating parameters. The primary difference is product status (active vs. obsolete) and RoHS compliance level.

Q: What is the difference between DF1BZ-10DP-2.5DSA and DF1B-10DP-2.5DSA(01)?

A: The primary difference is contact finish. DF1BZ-10DP-2.5DSA uses tin finish on mating contacts, while DF1B-10DP-2.5DSA(01) uses gold finish (8.00µin thickness). Gold finish provides enhanced corrosion resistance and is recommended for high-reliability applications or corrosive environments.

Q: Are these parts compatible with existing PCB designs for DF1B-10DP-2.5DSA?

A: Yes. All three parts maintain identical pitch (2.50mm), row spacing (2.50mm), mounting type (through-hole), and physical form factor (shrouded 4-wall, 2-row configuration). PCB footprints and mating connectors are fully compatible.

Q: What is the significance of the RoHS compliance difference?

A: The original DF1B-10DP-2.5DSA is RoHS non-compliant, while both substitutes are ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the substitute parts are mandatory.

Q: Which substitute part should be selected for new designs?

A: Selection depends on application requirements. For standard applications, DF1BZ-10DP-2.5DSA provides cost-effective equivalence with full compliance. For applications requiring enhanced contact reliability or corrosion resistance, DF1B-10DP-2.5DSA(01) with gold finish is recommended.

Q: Are there any packaging differences between these parts?

A: The original part packaging is not specified. Both substitutes are supplied in bulk packaging, suitable for production assembly and component procurement workflows.

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