DF13-3P-1.25DSA Equivalent & Substitute Parts

Part Overview

The DF13-3P-1.25DSA is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting in board-to-cable/wire applications. This 3-position, 1.25mm pitch connector features shrouded 4-wall construction with male pin contacts and detent lock fastening. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and component sourcing.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.049" (1.25mm)
Number of Positions	3
Number of Rows	1
Shrouding	Shrouded - 4 Wall
Mounting Type	Through Hole
Termination	Solder
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 for the DF13-3P-1.25DSA is determined by the following critical parameters:

Primary Matching Criteria:

Pitch - Mating: 0.049" (1.25mm)
Number of Positions: 3
Number of Rows: 1
Connector Type: Header
Mounting Type: Through Hole
Termination: Solder
Shrouding: Shrouded - 4 Wall
Style: Board to Cable/Wire

Secondary Compatibility Parameters:

Current Rating: 1A minimum
Voltage Rating: 100V minimum
Operating Temperature Range: Must encompass -35°C to 85°C or equivalent
Material Flammability Rating: UL94 V-0
Moisture Sensitivity Level: 1 (Unlimited)

All listed substitute parts meet these core electrical and mechanical requirements, enabling direct functional replacement in applications designed for the DF13-3P-1.25DSA.

Parameter Comparison

Parameter	DF13-3P-1.25DSA	DF13-3P-1.25DSA(05)	125SH-A-03-TS	M30-6100346
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Adam Tech	Harwin Inc.
Product Status	Obsolete	Active	Active	Active
Connector Type	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Blade	Male Pin
Pitch - Mating	0.049" (1.25mm)	0.049" (1.25mm)	0.049" (1.25mm)	0.049" (1.25mm)
Number of Positions	3	3	3	3
Number of Rows	1	1	1	1
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder
Fastening Type	Detent Lock	Detent Lock	Friction Lock	Detent Lock
Contact Length - Post	0.091" (2.30mm)	0.091" (2.30mm)	0.091" (2.30mm)	0.091" (2.30mm)
Insulation Height	0.169" (4.30mm)	0.169" (4.30mm)	0.185" (4.70mm)	0.169" (4.30mm)
Contact Shape	Square	Square	Rectangular	Square
Contact Finish - Mating	Tin	Tin	Tin	Tin
Contact Material	Brass	Brass	Phosphor Bronze	Brass
Insulation Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon	Thermoplastic, Glass Filled	Polyamide (PA66), Nylon 6/6
Operating Temperature	-35°C ~ 85°C	-35°C ~ 85°C	-40°C ~ 85°C	-25°C ~ 85°C
Current Rating	1A	1A per Contact	1A	1A per Contact
Voltage Rating	150V	150V	125VAC/DC	100V
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

DF13-3P-1.25DSA(05) is the primary recommended substitute. This part is manufactured by Hirose Electric Co Ltd, the original manufacturer of the obsolete DF13-3P-1.25DSA. It maintains identical electrical and mechanical specifications, including pitch, position count, shrouding, contact geometry, and operating temperature range. The part carries Active product status with ROHS3 compliance and REACH Unaffected designation, ensuring long-term availability and regulatory compliance.

M30-6100346 (Harwin Inc.) provides an alternative with equivalent core functionality. This part matches all critical parameters including pitch, position count, shrouding, and mounting type. It maintains the same contact post length and insulation height as the original part. The operating temperature range of -25°C to 85°C covers the upper portion of the original specification. Voltage rating is 100V, which is lower than the original 150V but remains suitable for applications within this voltage envelope. The part carries Active status with ROHS3 compliance and REACH Unaffected designation.

125SH-A-03-TS (Adam Tech) is a functional equivalent with notable design differences. This part uses male blade contacts instead of male pins, and employs friction lock fastening instead of detent lock. The insulation height is 0.185" (4.70mm) compared to 0.169" (4.30mm) in the original part. Contact material is phosphor bronze rather than brass. The voltage rating is 125VAC/DC, lower than the original 150V. Operating temperature range extends to -40°C, exceeding the original specification. This part is suitable for applications where the design accommodates blade-type contacts and friction lock fastening.

All substitute parts carry UL94 V-0 flammability rating and MSL 1 (Unlimited) moisture sensitivity level, matching the original part's environmental and safety certifications.

Frequently Asked Questions (FAQ)

Q: Can DF13-3P-1.25DSA(05) be used as a direct replacement for DF13-3P-1.25DSA?

A: Yes. DF13-3P-1.25DSA(05) is the active production equivalent manufactured by Hirose Electric Co Ltd. It maintains identical pitch (1.25mm), position count (3), contact type (male pin), shrouding (4-wall), and operating temperature range (-35°C to 85°C). The part is suitable for direct PCB and connector design substitution.

Q: What are the key differences between the Hirose DF13-3P-1.25DSA(05) and the Harwin M30-6100346?

A: Both parts share identical pitch, position count, shrouding, and contact post length. The M30-6100346 has a lower voltage rating (100V vs. 150V) and a narrower lower operating temperature limit (-25°C vs. -35°C). Both use male pin contacts with detent lock fastening and brass contact material. Selection depends on application voltage and temperature requirements.

Q: Why does the Adam Tech 125SH-A-03-TS have different contact geometry?

A: The 125SH-A-03-TS uses male blade contacts and rectangular contact shape instead of square male pins. This design difference reflects Adam Tech's connector architecture. The part maintains the same 1.25mm pitch and 3-position configuration, making it functionally compatible for applications where blade-type contacts are acceptable. Friction lock fastening is used instead of detent lock.

Q: Are all substitute parts RoHS compliant?

A: Yes. DF13-3P-1.25DSA(05) carries RoHS3 compliance. M30-6100346 and 125SH-A-03-TS both carry ROHS3 compliance with REACH Unaffected designation, ensuring compliance with current environmental regulations.

Q: What is the voltage rating consideration when selecting a substitute?

A: The original DF13-3P-1.25DSA has a 150V rating. DF13-3P-1.25DSA(05) maintains this rating. M30-6100346 is rated 100V, and 125SH-A-03-TS is rated 125VAC/DC. Selection must ensure the substitute part's voltage rating meets or exceeds the application requirement.

Q: Do all substitute parts have the same insulation height?

A: No. DF13-3P-1.25DSA, DF13-3P-1.25DSA(05), and M30-6100346 all have 0.169" (4.30mm) insulation height. The 125SH-A-03-TS has 0.185" (4.70mm) insulation height. This difference may affect PCB layout and mating connector clearance.

Q: What fastening type differences exist among the substitutes?

A: DF13-3P-1.25DSA, DF13-3P-1.25DSA(05), and M30-6100346 use detent lock fastening. The 125SH-A-03-TS uses friction lock fastening. Detent lock provides positive engagement with audible/tactile feedback, while friction lock relies on contact pressure. Application requirements determine which fastening type is appropriate.

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