A3C-32DA-2DSA Equivalent & Substitute Parts

Part Overview

The A3C-32DA-2DSA is a 32-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 core electrical and mechanical compatibility while offering improved availability and compliance status.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Number of Positions	32
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
Insulation Color	Black
Operating Temperature Range	-55°C ~ 85°C (Main Part)
Material Flammability Rating	UL94 V-0
Current Rating	1A (Main Part)
Voltage Rating	200VAC (Main Part)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following core parameters:

Critical Matching Parameters (Non-Negotiable):

Connector type: Receptacle
Number of positions: 32
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

Allowable Variations:

Contact material (Phosphor Bronze vs. Beryllium Copper)
Contact shape (Square vs. Circular)
Insulation material (PBT vs. PCT/Polyester vs. LCP)
Operating temperature range (higher ranges acceptable)
Current rating (higher ratings acceptable)
Voltage rating (higher ratings acceptable)
Contact finish thickness (variations acceptable)
Packaging format (Tray, Bulk, Tube)
RoHS compliance status

All four substitute parts meet these critical parameters and are therefore electrically and mechanically compatible with the A3C-32DA-2DSA.

Parameter Comparison

Parameter	A3C-32DA-2DSA	A3C-32DA-2DSA(71)	833-93-032-10-001000	SMM-116-01-F-D	SMM-116-01-S-D
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Mill-Max Manufacturing Corp.	Samtec Inc.	Samtec Inc.
Product Status	Obsolete	Active	Active	Active	Active
Number of Positions	32	32	32	32	32
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Number of Rows	2	2	2	2	2
Row Spacing - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold
Contact Material	Phosphor Bronze	Phosphor Bronze	Beryllium Copper	Beryllium Copper	Beryllium Copper
Contact Shape	Square	Square	Circular	Square	Square
Insulation Material	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polycyclohexylenedimethylene Terephthalate (PCT), Polyester	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)
Insulation Height	0.165" (4.20mm)	0.165" (4.20mm)	0.165" (4.20mm)	0.140" (4.66mm)	0.140" (4.66mm)
Contact Length - Post	0.118" (3.00mm)	0.118" (3.00mm)	0.125" (3.18mm)	0.120" (3.05mm)	0.120" (3.05mm)
Operating Temperature	-55°C ~ 85°C	-55°C ~ 85°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Current Rating	1A	1A	3A	3.2A per Contact	3.2A per Contact
Voltage Rating	200VAC	200VAC	Not Specified	350VAC	350VAC
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	Not Specified	Tray	Bulk	Tube	Tube
Inventory Status	658 Pcs New Original In Stock	1221 Pcs New Original In Stock	876 Pcs New Original In Stock	1106 Pcs New Original In Stock	949 Pcs New Original In Stock

Engineering Selection Recommendations

A3C-32DA-2DSA(71) (Hirose Electric Co Ltd)

This is the direct equivalent from the original manufacturer. It maintains identical electrical and mechanical specifications to the main part while offering active product status and ROHS3 compliance. Selection of this part eliminates any design risk associated with cross-manufacturer substitution. Recommended for applications where manufacturer continuity is a requirement.

SMM-116-01-F-D and SMM-116-01-S-D (Samtec Inc., Tiger Eye™ SMM Series)

Both Samtec parts provide enhanced electrical performance with 3.2A per contact current rating and 350VAC voltage rating compared to the main part specifications. Operating temperature range extends to 125°C. Both parts carry ROHS3 compliance. The SMM-116-01-F-D and SMM-116-01-S-D differ in contact finish thickness on the mating surface (3.00µin vs. 30.0µin respectively). Both are suitable for applications requiring higher current capacity or voltage margins. Insulation height is reduced to 0.140" (4.66mm) compared to 0.165" (4.20mm) on the main part; verify PCB layout compatibility.

833-93-032-10-001000 (Mill-Max Manufacturing Corp.)

This part offers 3A current rating and extended operating temperature to 125°C. Contact material is Beryllium Copper with circular contact geometry, differing from the square Phosphor Bronze contacts of the main part. Insulation material is PCT/Polyester. RoHS non-compliance status matches the main part. Voltage rating is not specified. Selection requires verification that circular contact geometry is compatible with mating connector design.

Frequently Asked Questions (FAQ)

Q: Can A3C-32DA-2DSA(71) be used as a direct replacement for A3C-32DA-2DSA?

A: Yes. A3C-32DA-2DSA(71) is the active production equivalent from Hirose Electric Co Ltd with identical electrical and mechanical specifications. The primary difference is product status (active vs. obsolete) and RoHS compliance (ROHS3 vs. non-compliant). No design changes are required.

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

A: Samtec SMM-116 series parts (SMM-116-01-F-D and SMM-116-01-S-D) provide higher current capacity (3.2A per contact vs. 1A), higher voltage rating (350VAC vs. 200VAC), and extended operating temperature (-55°C to 125°C vs. -55°C to 85°C). Insulation height is reduced from 0.165" to 0.140". Both carry ROHS3 compliance. Contact material is Beryllium Copper instead of Phosphor Bronze.

Q: Are there mechanical compatibility concerns with the Samtec parts?

A: The reduced insulation height (0.140" vs. 0.165") on Samtec parts requires verification against PCB layout and mating connector clearances. Contact length post dimensions vary slightly (0.120" vs. 0.118"). Verify solder pad spacing and through-hole positioning before implementation.

Q: What is the difference between SMM-116-01-F-D and SMM-116-01-S-D?

A: Both parts are electrically and mechanically identical. The difference is contact finish thickness on the mating surface: SMM-116-01-F-D has 3.00µin (0.076µm) gold plating, while SMM-116-01-S-D has 30.0µin (0.76µm) gold plating. Selection depends on application wear requirements and contact durability specifications.

Q: Does the Mill-Max 833-93-032-10-001000 have a specified voltage rating?

A: No. Voltage rating is not specified for the 833-93-032-10-001000. Current rating is 3A. Verify voltage requirements against application specifications before selection.

Q: Which substitute part offers the best compliance status?

A: SMM-116-01-F-D and SMM-116-01-S-D both carry ROHS3 compliance. A3C-32DA-2DSA(71) also carries ROHS3 compliance. The 833-93-032-10-001000 is RoHS non-compliant, matching the original part status.

Q: Can these parts be used interchangeably in existing designs?

A: Electrical interchangeability is confirmed for all four parts based on connector type, position count, pitch, and fastening specifications. Mechanical interchangeability requires verification of insulation height, contact length, and PCB layout compatibility. Samtec parts have reduced insulation height; Mill-Max has circular contacts instead of square. Prototype testing is recommended for new applications.

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