A3C-10DA-2DSA Rectangular Connector Equivalent & Substitute Parts

Part Overview

The A3C-10DA-2DSA is a 10-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 main part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts maintain functional compatibility while offering improved availability and compliance status.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	10
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 A3C-10DA-2DSA is determined by strict alignment of the following critical parameters:

Connector type (Receptacle) and contact type (Female Socket)
Position count (10 positions) and row configuration (2 rows)
Mating pitch and row spacing (0.079" / 2.00mm)
Mounting method (Through Hole) and termination (Solder)
Fastening mechanism (Push-Pull)
Contact finish at mating surface (Gold)
Flammability rating (UL94 V-0)

Two substitute parts meet these criteria: A3C-10DA-2DSA(71) from Hirose Electric Co Ltd and SMM-105-01-S-D from Samtec Inc. Both maintain identical mechanical and electrical interface specifications, ensuring direct functional compatibility in existing designs.

Parameter Comparison

Parameter	A3C-10DA-2DSA (Main)	A3C-10DA-2DSA(71) (Hirose)	SMM-105-01-S-D (Samtec)
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Samtec Inc.
Product Status	Obsolete	Active	Active
Connector Type	Receptacle	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket	Female Socket
Number of Positions	10	10	10
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	200VAC	350VAC
Operating Temperature	-55°C ~ 85°C	-55°C ~ 85°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	-	Tray	Tube

Engineering Selection Recommendations

A3C-10DA-2DSA(71) is the direct equivalent from Hirose Electric Co Ltd. This part maintains identical electrical and mechanical specifications to the obsolete A3C-10DA-2DSA while offering active product status and ROHS3 compliance. Selection of this part preserves design continuity with minimal risk.

SMM-105-01-S-D from Samtec Inc. provides an alternative from a different manufacturer. This part exceeds the original specifications in current rating (3.2A per contact versus 1A), voltage rating (350VAC versus 200VAC), and operating temperature range (-55°C ~ 125°C versus -55°C ~ 85°C). The SMM-105-01-S-D also maintains ROHS3 compliance and active product status. Selection of this part is appropriate for applications requiring enhanced electrical performance or extended temperature operation within the same mechanical interface.

Both substitutes are suitable for direct replacement based on connector type, position count, pitch, mounting method, and fastening mechanism. Selection between them depends on compliance requirements, performance headroom, and packaging preferences.

Frequently Asked Questions (FAQ)

Q: Can A3C-10DA-2DSA(71) be used as a direct replacement for A3C-10DA-2DSA?

A: Yes. A3C-10DA-2DSA(71) maintains identical electrical and mechanical specifications, including connector type, position count, pitch spacing, mounting method, and contact finish. The primary difference is product status (active versus obsolete) and RoHS compliance (ROHS3 compliant versus non-compliant).

Q: What are the key differences between the Hirose and Samtec substitutes?

A: Both parts share identical mechanical interfaces and core specifications. The Samtec SMM-105-01-S-D provides higher current rating (3.2A per contact), higher voltage rating (350VAC), and extended operating temperature range (-55°C ~ 125°C). Insulation material differs: Hirose uses Polybutylene Terephthalate (PBT), while Samtec uses Liquid Crystal Polymer (LCP).

Q: Are these parts interchangeable in existing designs?

A: Yes, all three parts are mechanically and electrically interchangeable due to identical pitch, row spacing, position count, mounting type, and fastening mechanism. Designs using the obsolete A3C-10DA-2DSA can transition to either substitute without PCB layout modifications.

Q: What packaging options are available?

A: A3C-10DA-2DSA(71) is supplied in Tray packaging. SMM-105-01-S-D is supplied in Tube packaging. Packaging selection may affect handling, storage, and procurement workflows.

Q: Are both substitutes RoHS compliant?

A: Yes. A3C-10DA-2DSA(71) and SMM-105-01-S-D are both ROHS3 compliant. The original A3C-10DA-2DSA is RoHS non-compliant.

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