A3D-44DA-2DSG Equivalent & Substitute Parts

Part Overview

The A3D-44DA-2DSG is a 44-position receptacle connector manufactured by Hirose Electric Co Ltd, designed for board-to-board or cable applications with 0.079" (2.00mm) pitch spacing. This connector features gold-plated mating contacts, through-hole solder termination, and push-pull fastening. The product is currently obsolete, making equivalent substitutes necessary for ongoing system support, maintenance, and new production runs where compatible alternatives are required.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	44
Pitch - Mating	0.079" (2.00mm)
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Current Rating	1A
Voltage Rating	200VAC
Operating Temperature	-55°C ~ 85°C
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution eligibility for the A3D-44DA-2DSG is determined by strict alignment of the following critical parameters:

44-position receptacle configuration with female socket contacts
0.079" (2.00mm) mating pitch and row spacing
Two-row arrangement
Through-hole solder termination with push-pull fastening
Gold-plated mating contacts
UL94 V-0 flammability rating
Operating temperature range of at least -55°C minimum
Current and voltage ratings meeting or exceeding 1A and 200VAC respectively

The substitute parts listed below satisfy these core electrical and mechanical requirements, enabling direct functional replacement in applications originally designed for the A3D-44DA-2DSG.

Parameter Comparison

Parameter	A3D-44DA-2DSG (Hirose)	150244-6002-RB (3M)	SMM-122-01-S-D (Samtec)
Connector Type	Receptacle	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket	Female Socket
Number of Positions	44	44	44
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Number of Rows	2	2	2
Row Spacing - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold
Current Rating	1A	1A	3.2A per Contact
Voltage Rating	200VAC	500VDC	350VAC
Operating Temperature	-55°C ~ 85°C	-55°C ~ 105°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Product Status	Obsolete	Active	Active

Engineering Selection Recommendations

Both substitute parts are active products with current manufacturing support, providing supply chain continuity for applications requiring the A3D-44DA-2DSG.

The 150244-6002-RB (3M 1502 Series) offers equivalent electrical performance with extended operating temperature range (-55°C to 105°C) and higher voltage rating (500VDC). This part is RoHS3 compliant and packaged in trays for production environments.

The SMM-122-01-S-D (Samtec Tiger Eye™ SMM Series) provides the highest current capacity (3.2A per contact) and widest operating temperature range (-55°C to 125°C), with voltage rating of 350VAC. This part is also RoHS3 compliant and supplied in tubes.

Both substitutes meet the core mechanical and electrical requirements of the original A3D-44DA-2DSG and are suitable for direct replacement in board-to-board and cable connector applications.

Frequently Asked Questions (FAQ)

Q: Can the 150244-6002-RB replace the A3D-44DA-2DSG in all applications?

A: The 150244-6002-RB meets all critical substitution parameters: 44-position receptacle, 0.079" pitch, two-row configuration, through-hole solder termination, push-pull fastening, and gold-plated mating contacts. The higher voltage rating (500VDC) and extended temperature range (-55°C to 105°C) provide additional design margin. Mechanical fit and PCB layout compatibility should be verified for your specific application.

Q: What are the differences between the two substitute options?

A: The 150244-6002-RB (3M) and SMM-122-01-S-D (Samtec) both satisfy core substitution criteria but differ in current capacity, voltage rating, and temperature range. The Samtec part offers higher current per contact (3.2A vs. 1A) and wider temperature range (-55°C to 125°C vs. -55°C to 105°C). The 3M part provides higher voltage rating (500VDC vs. 350VAC). Selection depends on your application's electrical and thermal requirements.

Q: Are there packaging differences between the substitute parts?

A: Yes. The 150244-6002-RB is packaged in trays, suitable for automated assembly and production environments. The SMM-122-01-S-D is supplied in tubes. Packaging selection should align with your manufacturing process and inventory management requirements.

Q: Do both substitutes have the same insulation height?

A: No. The A3D-44DA-2DSG has an insulation height of 0.165" (4.20mm), the 150244-6002-RB is 0.177" (4.50mm), and the SMM-122-01-S-D is 0.140" (4.66mm). These dimensional variations may affect PCB layout and mating stack height. Verify clearance and mating compatibility with your connector design.

Q: Are both substitutes RoHS compliant?

A: Yes. Both the 150244-6002-RB and SMM-122-01-S-D are RoHS3 compliant, meeting current environmental and regulatory requirements for electronic components.

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