Equivalent & Substitute Parts for A3C-8P-2DSA Rectangular Connector

Part Overview

The A3C-8P-2DSA is a vertical header connector manufactured by Hirose Electric Co Ltd, featuring 8 positions across 2 rows with 2.00mm pitch. This through-hole solder connector is designed for board-to-board or cable applications with push-pull fastening. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.079" (2.00mm)
Number of Positions	8
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Operating Temperature	-55°C ~ 85°C
Current Rating	1A
Voltage Rating	200V
Material Flammability Rating	UL94 V-0
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the A3C-8P-2DSA is determined by the following critical parameters:

Primary Matching Criteria:

Connector type: Header
Contact type: Male Pin
Pitch - Mating: 0.079" (2.00mm)
Number of positions: 8
Number of rows: 2
Row spacing - Mating: 0.079" (2.00mm)
Mounting type: Through Hole
Termination: Solder
Fastening type: Push-Pull
Material flammability rating: UL94 V-0
Moisture sensitivity level: 1 (Unlimited)

Secondary Compatibility Considerations:

Operating temperature range (minimum -55°C required)
Current rating (minimum 1A required)
Contact finish and material composition
Overall contact length and insulation height variations

All substitute parts listed meet the primary matching criteria. Variations in contact length, contact finish, and insulation material are acceptable within the functional scope of this connector category, provided the core electrical and mechanical parameters align.

Parameter Comparison

Part Number	Manufacturer	Pitch (mm)	Positions	Rows	Contact Type	Mounting	Termination	Operating Temp (°C)	Current Rating	Voltage Rating	Product Status	RoHS Status
A3C-8P-2DSA	Hirose Electric Co Ltd	2.00	8	2	Male Pin	Through Hole	Solder	-55 ~ 85	1A	200V	Obsolete	N/A
A3C-8P-2DSA(30)	Hirose Electric Co Ltd	2.00	8	2	Male Pin	Through Hole	Solder	-55 ~ 85	1A	200VAC	Active	ROHS3 Compliant
M22-2020446	Harwin Inc.	2.00	8	2	Male Pin	Through Hole	Solder	-40 ~ 105	1A per Contact	—	Active	ROHS3 Compliant
MTMM-104-02-F-D-135	Samtec Inc.	2.00	8	2	Male Pin	Through Hole	Solder	-55 ~ 125	3A	—	Active	ROHS3 Compliant
MTMM-104-02-G-D-115	Samtec Inc.	2.00	8	2	Male Pin	Through Hole	Solder	-55 ~ 125	3A	—	Active	ROHS3 Compliant
MTMM-104-02-G-D-135	Samtec Inc.	2.00	8	2	Male Pin	Through Hole	Solder	-55 ~ 125	3A	—	Active	ROHS3 Compliant
MTMM-104-02-G-D-145	Samtec Inc.	2.00	8	2	Male Pin	Through Hole	Solder	-55 ~ 125	3A	—	Active	ROHS3 Compliant
MTMM-104-02-G-D-150	Samtec Inc.	2.00	8	2	Male Pin	Through Hole	Solder	-55 ~ 125	3A	—	Active	ROHS3 Compliant
MTMM-104-02-S-D-125	Samtec Inc.	2.00	8	2	Male Pin	Through Hole	Solder	-55 ~ 125	3A	—	Active	ROHS3 Compliant
MTMM-104-02-T-D-125	Samtec Inc.	2.00	8	2	Male Pin	Through Hole	Solder	-55 ~ 105	3A	—	Active	ROHS3 Compliant
MTMM-104-02-T-D-150	Samtec Inc.	2.00	8	2	Male Pin	Through Hole	Solder	-55 ~ 105	3A	—	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent: A3C-8P-2DSA(30) is the active production equivalent from Hirose Electric Co Ltd. This part maintains identical electrical and mechanical specifications to the obsolete A3C-8P-2DSA while offering ROHS3 compliance and active product status. This is the primary recommendation for direct replacement in new designs or production restocking.

Alternative Manufacturers: Harwin M22-2020446 and Samtec MTMM-104 series connectors provide functional substitution with extended operating temperature ranges and higher current ratings. These parts are suitable for applications where the original specifications are met or exceeded. All substitute parts carry ROHS3 compliance and active product status, ensuring long-term availability and regulatory alignment.

Compliance Considerations: All listed substitute parts meet UL94 V-0 flammability requirements and maintain MSL 1 (Unlimited) moisture sensitivity levels. ROHS3 compliance is confirmed for all active production alternatives, supporting regulatory requirements in electronics manufacturing.

Frequently Asked Questions (FAQ)

Q: Can I use MTMM-104 series connectors as a direct replacement for A3C-8P-2DSA? A: Yes. The MTMM-104 series maintains the critical parameters: 2.00mm pitch, 8 positions, 2 rows, through-hole solder termination, and push-pull fastening. The higher current rating (3A vs 1A) and extended operating temperature range (-55°C to 125°C) provide enhanced performance margins. Contact length variations are acceptable within the functional scope of this connector category.

Q: What is the difference between the various MTMM-104 part numbers? A: MTMM-104 variants differ in contact length (mating and post), contact finish (Gold or Tin), and post finish specifications. These variations accommodate different PCB stack-up requirements and application-specific contact engagement depths. All variants maintain identical pitch, position count, and core electrical specifications.

Q: Is A3C-8P-2DSA(30) identical to the original A3C-8P-2DSA? A: A3C-8P-2DSA(30) is the active production variant with identical electrical and mechanical specifications. The primary difference is product status (Active vs Obsolete) and ROHS3 compliance certification. This is the recommended replacement for obsolete stock.

Q: What are the packaging differences among substitute parts? A: Packaging variations (Bulk vs standard) do not affect electrical or mechanical compatibility. Packaging selection is determined by procurement and inventory management requirements rather than functional performance.

Q: Can I mix different MTMM-104 variants in the same application? A: Yes, provided the application accommodates the contact length variations. All MTMM-104 variants share identical pitch, position count, and core electrical specifications. Contact length differences affect mating depth and stacking height, which must align with connector receptacle design.

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