DF1B-16DP-2.5DSA Equivalent & Substitute Parts

Part Overview

The DF1B-16DP-2.5DSA is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting with 16 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-16DP-2.5DSA
Manufacturer	Hirose Electric Co Ltd
Series	DF1B
Connector Type	Header
Number of Positions	16
Number of Rows	2
Pitch - Mating	0.098" (2.50mm)
Row Spacing - Mating	0.098" (2.50mm)
Mounting Type	Through Hole
Shrouding	Shrouded - 4 Wall
Contact Type	Male Pin
Fastening Type	Push-Pull
Voltage Rating	250V
Operating Temperature	-35°C ~ 85°C
Material Flammability Rating	UL94 V-0
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the DF1B-16DP-2.5DSA is determined by strict equivalence across the following critical parameters:

Connector type (Header)
Number of positions (16) and row configuration (2 rows)
Mating pitch (0.098" / 2.50mm) and row spacing (0.098" / 2.50mm)
Mounting method (Through Hole)
Shrouding configuration (Shrouded - 4 Wall)
Contact type (Male Pin)
Fastening mechanism (Push-Pull)
Voltage rating (250V)
Operating temperature range (-35°C ~ 85°C)
Flammability rating (UL94 V-0)

The identified substitute parts maintain full electrical and mechanical compatibility with the original part across all these parameters. Variations in packaging, product status, and contact finish do not affect functional interchangeability in the application.

Parameter Comparison

Parameter	DF1B-16DP-2.5DSA (Main)	DF1BZ-16DP-2.5DSA (Substitute)	DF1B-16DP-2.5DSA(01) (Substitute)
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Hirose Electric Co Ltd
Series	DF1B	DF1B	DF1B
Connector Type	Header	Header	Header
Number of Positions	16	16	16
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
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Contact Type	Male Pin	Male Pin	Male Pin
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
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	-	Tray	Bulk

Engineering Selection Recommendations

Both substitute parts maintain full functional and mechanical compatibility with the original DF1B-16DP-2.5DSA. Selection between alternatives should be based on the following factors:

DF1BZ-16DP-2.5DSA is the direct manufacturer equivalent with active product status and ROHS3 compliance. This part is supplied in tray packaging and represents the primary replacement option for new designs and ongoing procurement.

DF1B-16DP-2.5DSA(01) is the manufacturer-recommended alternative, also with active product status and ROHS3 compliance. This variant features gold-plated mating contacts instead of tin finish and is supplied in bulk packaging. The gold contact finish provides enhanced corrosion resistance and is suitable for applications requiring extended contact durability.

Both substitute parts are REACH unaffected and carry the same ECCN and HTSUS classifications as the original part. The choice between them depends on packaging requirements, contact finish specifications, and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can DF1BZ-16DP-2.5DSA be used as a direct replacement for DF1B-16DP-2.5DSA?

A: Yes. Both parts are electrically and mechanically identical across all critical parameters including connector type, position count, pitch, mounting method, shrouding, contact type, fastening mechanism, voltage rating, and operating temperature range. The primary differences are product status (active vs. obsolete), RoHS compliance level, and packaging format.

Q: What is the difference between DF1BZ-16DP-2.5DSA and DF1B-16DP-2.5DSA(01)?

A: Both parts are functionally equivalent. The primary distinction is the contact finish: DF1BZ-16DP-2.5DSA uses tin-plated mating contacts, while DF1B-16DP-2.5DSA(01) uses gold-plated mating contacts with 8.00µin (0.203µm) thickness. Gold plating offers improved corrosion resistance. Secondary differences include packaging (tray vs. bulk) and base product number designation (DF1BZ vs. DF1B).

Q: Are the substitute parts RoHS compliant?

A: Yes. Both DF1BZ-16DP-2.5DSA and DF1B-16DP-2.5DSA(01) are ROHS3 compliant. The original DF1B-16DP-2.5DSA is RoHS non-compliant.

Q: Does the packaging format affect connector performance?

A: No. Packaging format (tray vs. bulk) does not affect electrical or mechanical performance. Selection should be based on procurement and handling requirements.

Q: Can these connectors be used interchangeably in existing designs?

A: Yes. All three parts maintain identical mechanical footprints, electrical ratings, and functional characteristics. PCB layout and mating connector specifications remain unchanged.

Q: What is the significance of the keying slot feature?

A: The keying slot provides polarization to prevent incorrect mating orientation, ensuring proper connector alignment during assembly.

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