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Equivalent & Substitute Parts for A3C-12DA-2DSC
Part Overview
The A3C-12DA-2DSC is a 12-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 original part is classified as obsolete, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility while offering active product status and improved compliance certifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Type | Receptacle |
| Contact Type | Female Socket |
| Number of Positions | 12 |
| 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 |
| Contact Shape | Square |
| Operating Temperature | -55°C ~ 85°C |
| Current Rating | 1A |
| Voltage Rating | 200VAC |
Substitute Part Grouping Explanation
Substitute parts for the A3C-12DA-2DSC are selected based on strict electrical and mechanical parameter matching. The critical parameters determining substitution eligibility are:
- 12-position receptacle configuration with female socket contacts
- 0.079" (2.00mm) pitch spacing in a 2-row arrangement
- Through-hole solder termination with push-pull fastening
- Gold-plated mating contacts
- Square contact geometry
The substitute parts identified maintain these core parameters while offering variations in contact material, insulation material, and performance ratings. All substitutes are classified as active products with current RoHS3 compliance, addressing the obsolescence status of the original part.
Parameter Comparison
| Parameter | A3C-12DA-2DSC | A3C-12DA-2DSC(71) | 0873801206 | SMM-106-01-H-D | SMM-106-01-S-D |
|---|---|---|---|---|---|
| Manufacturer | Hirose Electric Co Ltd | Hirose Electric Co Ltd | Molex | Samtec Inc. | Samtec Inc. |
| Series | A3 | A3 | Milli-Grid 87380 | Tiger Eye™ SMM | Tiger Eye™ SMM |
| Product Status | Obsolete | Active | Active | Active | Active |
| Number of Positions | 12 | 12 | 12 | 12 | 12 |
| 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 Shape | Square | Square | Square | Square | Square |
| Operating Temperature | -55°C ~ 85°C | -55°C ~ 85°C | Not specified | -55°C ~ 125°C | -55°C ~ 125°C |
| Current Rating | 1A | 1A | Not specified | 3.2A per Contact | 3.2A per Contact |
| Voltage Rating | 200VAC | 200VAC | Not specified | 350VAC | 350VAC |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Insulation Material | Polybutylene Terephthalate (PBT) | Polybutylene Terephthalate (PBT) | Not specified | Liquid Crystal Polymer (LCP) | Liquid Crystal Polymer (LCP) |
| Contact Material | Phosphor Bronze | Phosphor Bronze | Not specified | Beryllium Copper | Beryllium Copper |
Engineering Selection Recommendations
A3C-12DA-2DSC(71) is the direct equivalent substitute, offering identical electrical and mechanical specifications to the original part while maintaining active product status and achieving ROHS3 compliance. This variant represents the same connector series with improved regulatory compliance and current manufacturing availability.
0873801206 (Molex Milli-Grid 87380) provides functional substitution with identical pitch, position count, and mounting configuration. This part maintains active status and ROHS3 compliance, though specific operating temperature and current ratings are not provided in the available data.
SMM-106-01-H-D and SMM-106-01-S-D (Samtec Tiger Eye™ SMM series) offer enhanced electrical performance with higher current ratings (3.2A per contact versus 1A) and extended operating temperature range (-55°C ~ 125°C versus -55°C ~ 85°C). Both variants maintain identical mechanical compatibility and ROHS3 compliance. The primary distinction between these two Samtec options is the contact finish on the post: SMM-106-01-H-D features gold-plated posts, while SMM-106-01-S-D features tin-plated posts.
Frequently Asked Questions (FAQ)
Q: Can A3C-12DA-2DSC(71) be used as a direct replacement for A3C-12DA-2DSC?
A: Yes. A3C-12DA-2DSC(71) maintains identical electrical and mechanical specifications, including 12-position configuration, 0.079" pitch spacing, through-hole solder termination, and push-pull fastening. The primary advantage is active product status and ROHS3 compliance.
Q: What are the key differences between the Samtec SMM-106-01-H-D and SMM-106-01-S-D options?
A: Both connectors share identical mechanical compatibility and electrical performance (3.2A per contact, 350VAC rating). The distinction is the contact finish on the post: SMM-106-01-H-D uses gold plating, while SMM-106-01-S-D uses tin plating. Both are ROHS3 compliant and active products.
Q: Are the Samtec Tiger Eye™ SMM connectors backward compatible with the original A3C-12DA-2DSC?
A: Mechanical and electrical compatibility is maintained through identical pitch spacing (0.079"), position count (12), row configuration (2 rows), and fastening type (push-pull). The Samtec variants offer enhanced performance specifications with higher current ratings and extended temperature range.
Q: What packaging options are available for these substitute parts?
A: A3C-12DA-2DSC(71) is supplied in Tray packaging. The Molex 0873801206 is supplied in Tube packaging. Both Samtec variants (SMM-106-01-H-D and SMM-106-01-S-D) are supplied in Tube packaging.
Q: Do all substitute parts meet current RoHS compliance requirements?
A: Yes. All identified substitute parts (A3C-12DA-2DSC(71), 0873801206, SMM-106-01-H-D, and SMM-106-01-S-D) are ROHS3 compliant. The original A3C-12DA-2DSC is RoHS non-compliant.
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