DF1B-11P-2.5DSA Equivalent & Substitute Parts

Part Overview

The DF1B-11P-2.5DSA is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting with 11 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, necessitating identification of equivalent and substitute components to maintain design continuity and ensure component availability for production and repair applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	DF1B-11P-2.5DSA
Manufacturer	Hirose Electric Co Ltd
Category	Rectangular Connectors
Series	DF1B
Connector Type	Header
Contact Type	Male Pin
Number of Positions	11
Pitch - Mating	0.098" (2.50mm)
Mounting Type	Through Hole
Shrouding	Shrouded - 4 Wall
Fastening Type	Push-Pull
Termination	Solder
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-11P-2.5DSA is determined by the following critical parameters that must remain constant:

Connector Type: Header
Contact Type: Male Pin
Number of Positions: 11
Pitch - Mating: 0.098" (2.50mm)
Mounting Type: Through Hole
Shrouding: Shrouded - 4 Wall
Fastening Type: Push-Pull
Termination: Solder
Voltage Rating: 250V
Operating Temperature Range: -35°C ~ 85°C
Material Flammability Rating: UL94 V-0

Variations in contact finish material, contact finish thickness, RoHS compliance status, and product lifecycle status do not affect functional interchangeability when these core parameters remain aligned.

Parameter Comparison

Parameter	DF1B-11P-2.5DSA (Main)	DF1BZ-11P-2.5DSA (Substitute)	DF1B-11P-2.5DSA(01) (MFR Recommended)
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Hirose Electric Co Ltd
Series	DF1B	DF1B	DF1B
Connector Type	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin
Number of Positions	11	11	11
Pitch - Mating	0.098" (2.50mm)	0.098" (2.50mm)	0.098" (2.50mm)
Number of Rows	1	1	1
Mounting Type	Through Hole	Through Hole	Through Hole
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Fastening Type	Push-Pull	Push-Pull	Push-Pull
Termination	Solder	Solder	Solder
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	Last Time Buy	Active
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

DF1BZ-11P-2.5DSA is a direct functional equivalent with identical electrical and mechanical specifications. This substitute maintains all critical parameters while offering RoHS compliance and Last Time Buy status, providing a transition path for designs requiring regulatory compliance.

DF1B-11P-2.5DSA(01) is the manufacturer-recommended active production alternative. This part maintains full functional compatibility with the original design while offering active product status and RoHS compliance. The contact finish differs (gold plating at 8.00µin versus tin), which does not affect electrical performance or mechanical interchangeability in standard applications.

For new designs or production requiring long-term component availability, DF1B-11P-2.5DSA(01) is the preferred selection due to active product status. For existing inventory management or near-term production requirements, DF1BZ-11P-2.5DSA provides immediate availability with equivalent performance characteristics.

Frequently Asked Questions (FAQ)

Q: Are DF1BZ-11P-2.5DSA and DF1B-11P-2.5DSA(01) electrically and mechanically interchangeable with the original DF1B-11P-2.5DSA?

A: Yes. Both substitute parts maintain identical connector type, contact configuration, pitch, mounting method, shrouding, fastening mechanism, and electrical ratings. The variations in contact finish material and RoHS compliance do not affect functional interchangeability.

Q: What is the difference between tin and gold contact finishes in these connectors?

A: Contact finish material is specified in the part parameters. Tin finish is standard for general applications, while gold finish provides enhanced corrosion resistance. Both finishes are compatible with standard PCB assembly and mating connector processes.

Q: Why does the original part show RoHS non-compliant status?

A: RoHS compliance status reflects the manufacturing date and regulatory requirements at the time of production. Substitute parts DF1BZ-11P-2.5DSA and DF1B-11P-2.5DSA(01) are manufactured to current RoHS standards.

Q: Can I use DF1B-11P-2.5DSA(01) as a direct replacement in existing designs?

A: Yes. The part maintains all critical electrical and mechanical parameters required for direct substitution. PCB footprints, mating connector compatibility, and electrical performance remain unchanged.

Q: What is the significance of "Last Time Buy" status for DF1BZ-11P-2.5DSA?

A: Last Time Buy indicates the manufacturer will no longer produce this part after a specified date. For long-term production requirements, DF1B-11P-2.5DSA(01) with Active status is recommended.

Q: Are there packaging differences between these parts?

A: DF1BZ-11P-2.5DSA is supplied in Bulk packaging. Packaging specifications for DF1B-11P-2.5DSA and DF1B-11P-2.5DSA(01) are not specified in the provided data.

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