DF13-4P-1.25DSA(75) Equivalent & Substitute Parts

Part Overview

The DF13-4P-1.25DSA(75) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting in board-to-cable/wire applications. This connector features a 4-position, single-row configuration with 0.049" (1.25mm) pitch and shrouded 4-wall design. The part is currently listed as obsolete, making identification of suitable substitutes essential for ongoing design support and component procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	DF13-4P-1.25DSA(75)
Manufacturer	Hirose Electric Co Ltd
Series	DF13
Connector Type	Header
Contact Type	Male Pin
Number of Positions	4
Pitch - Mating	0.049" (1.25mm)
Mounting Type	Through Hole
Shrouding	Shrouded - 4 Wall
Current Rating	1A
Voltage Rating	150V
Operating Temperature	-35°C ~ 85°C
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the DF13-4P-1.25DSA(75) is determined by the following critical parameters:

Connector Series & Type: Must be DF13 series header connector
Position Count & Pitch: Must maintain 4 positions at 0.049" (1.25mm) mating pitch
Contact Configuration: Male pin, single-row, board-to-cable/wire style
Mounting & Termination: Through-hole solder termination with detent lock fastening
Shrouding: Shrouded 4-wall design required
Electrical Ratings: Minimum 1A current rating and 150V voltage rating
Environmental Compliance: UL94 V-0 flammability rating and RoHS compliance

The DF13-4P-1.25DSA(25) meets all substitution criteria as an active product within the same series, offering identical mechanical and electrical specifications with improved availability and compliance status.

Parameter Comparison

Parameter	DF13-4P-1.25DSA(75)	DF13-4P-1.25DSA(25)
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd
Series	DF13	DF13
Product Status	Obsolete	Active
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Number of Positions	4	4
Pitch - Mating	0.049" (1.25mm)	0.049" (1.25mm)
Number of Rows	1	1
Style	Board to Cable/Wire	Board to Cable/Wire
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Fastening Type	Detent Lock	Detent Lock
Contact Length - Post	0.091" (2.30mm)	0.091" (2.30mm)
Insulation Height	0.169" (4.30mm)	0.169" (4.30mm)
Contact Shape	Square	Square
Contact Finish - Mating	Tin	Tin
Contact Finish - Post	Tin	Tin
Contact Material	Brass	Brass
Insulation Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon
Operating Temperature	-35°C ~ 85°C	-35°C ~ 85°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Insulation Color	Beige	Beige
Current Rating	1A	1A per Contact
Voltage Rating	150V	150V
Base Product Number	DF13	DF13
RoHS Status	RoHS Compliant	ROHS3 Compliant
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

The DF13-4P-1.25DSA(25) is the direct substitute for the obsolete DF13-4P-1.25DSA(75). Both parts share identical mechanical dimensions, electrical ratings, and functional specifications. The primary distinction is product status: the DF13-4P-1.25DSA(75) is obsolete, while the DF13-4P-1.25DSA(25) maintains active production status.

The substitute part offers enhanced compliance certification (ROHS3 vs. RoHS Compliant) and improved supply chain availability. The packaging format differs (tube for the substitute versus unspecified for the original), which may affect procurement logistics but does not impact functional compatibility.

For new designs or ongoing production requiring this connector type, the DF13-4P-1.25DSA(25) is the appropriate selection. Existing designs using the DF13-4P-1.25DSA(75) can transition to this substitute without modification to PCB layouts or mating connector specifications.

Frequently Asked Questions (FAQ)

Q: Are the DF13-4P-1.25DSA(75) and DF13-4P-1.25DSA(25) mechanically interchangeable?

A: Yes. Both connectors share identical pitch (0.049" / 1.25mm), position count (4), mounting type (through-hole), and shrouding configuration (4-wall). PCB footprints and mating connector interfaces are identical.

Q: What is the difference between the part numbers?

A: The suffix designation (75 vs. 25) indicates different packaging or manufacturing batches. The DF13-4P-1.25DSA(75) is obsolete, while the DF13-4P-1.25DSA(25) is in active production. Electrical and mechanical specifications are equivalent.

Q: Can I use the DF13-4P-1.25DSA(25) in place of the DF13-4P-1.25DSA(75) in existing designs?

A: Yes. The substitute part maintains all critical parameters: 1A current rating, 150V voltage rating, -35°C to 85°C operating temperature range, UL94 V-0 flammability rating, and RoHS compliance. No design modifications are required.

Q: What is the packaging difference?

A: The DF13-4P-1.25DSA(75) packaging is unspecified in available documentation. The DF13-4P-1.25DSA(25) is supplied in tube packaging. This affects procurement and handling but does not impact connector performance or compatibility.

Q: Are there any compliance differences between these parts?

A: The DF13-4P-1.25DSA(25) carries ROHS3 compliance certification, representing a more current regulatory standard than the RoHS Compliant designation of the obsolete part. Both meet UL94 V-0 flammability requirements and EAR99 export classification.

Q: What is the current rating specification?

A: The DF13-4P-1.25DSA(75) is rated at 1A total. The DF13-4P-1.25DSA(25) specifies 1A per contact. For a 4-position connector, this represents equivalent or improved current handling capability.

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