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DF3-12S-2DSA(20) Equivalent & Substitute Parts
Part Overview
The DF3-12S-2DSA(20) 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 mating. This connector features through-hole solder termination, friction lock fastening, and tin-plated contacts rated for 3A at 30VAC operation across -30°C to 85°C temperature range.
The DF3-12S-2DSA(20) is classified as obsolete. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications requiring this connector specification.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Type | Receptacle |
| Number of Positions | 12 |
| Pitch - Mating | 0.079" (2.00mm) |
| Mounting Type | Through Hole |
| Termination | Solder |
| Contact Type | Female Socket |
| Current Rating | 3A |
| Voltage Rating | 30VAC |
| Operating Temperature | -30°C ~ 85°C |
| Contact Finish - Mating | Tin |
| Insulation Material | Polyamide (PA), Nylon |
| Flammability Rating | UL94 V-0 |
Substitute Part Grouping Explanation
Substitution eligibility for the DF3-12S-2DSA(20) is determined by strict equivalence across the following critical parameters:
- Connector type (Receptacle)
- Number of positions (12)
- Pitch - mating (0.079" / 2.00mm)
- Mounting type (Through Hole)
- Termination method (Solder)
- Contact type (Female Socket)
- Current rating (3A minimum)
- Voltage rating (30VAC minimum)
- Operating temperature range (-30°C ~ 85°C)
- Contact finish - mating (Tin)
- Insulation material (Polyamide/Nylon)
- Flammability rating (UL94 V-0)
The DF3-12S-2DSA(25) meets all substitution criteria as a direct equivalent within the DF3 series.
Parameter Comparison
| Parameter | DF3-12S-2DSA(20) | DF3-12S-2DSA(25) |
|---|---|---|
| Manufacturer | Hirose Electric Co., Ltd. | Hirose Electric Co Ltd |
| Series | DF3 | DF3 |
| Connector Type | Receptacle | Receptacle |
| Number of Positions | 12 | 12 |
| Pitch - Mating | 0.079" (2.00mm) | 0.079" (2.00mm) |
| Mounting Type | Through Hole | Through Hole |
| Termination | Solder | Solder |
| Contact Type | Female Socket | Female Socket |
| Current Rating | 3A | 3A |
| Voltage Rating | 30VAC | 30VAC |
| Operating Temperature | -30°C ~ 85°C | -30°C ~ 85°C |
| Contact Finish - Mating | Tin | Tin |
| Contact Length - Post | 0.118" (3.00mm) | 0.118" (3.00mm) |
| Insulation Height | 0.232" (5.90mm) | 0.232" (5.90mm) |
| Insulation Material | Polyamide (PA), Nylon | Polyamide (PA), Nylon |
| Insulation Color | Black | Black |
| Contact Shape | Square | Square |
| Contact Material | Phosphor Bronze | Phosphor Bronze |
| Flammability Rating | UL94 V-0 | UL94 V-0 |
| Mated Stacking Heights | 6.6mm, 7.5mm | 6.6mm, 7.5mm |
| Fastening Type | Friction Lock | Friction Lock |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | RoHS Compliant |
| Packaging | - | Tube |
Engineering Selection Recommendations
The DF3-12S-2DSA(25) is the direct substitute for the obsolete DF3-12S-2DSA(20). Both parts are electrically and mechanically equivalent across all functional parameters.
The primary distinction is product status and regulatory compliance. The DF3-12S-2DSA(25) is active production and RoHS compliant, whereas the DF3-12S-2DSA(20) is obsolete and RoHS non-compliant. For new designs or ongoing production requiring regulatory compliance, the DF3-12S-2DSA(25) is the appropriate selection.
Frequently Asked Questions (FAQ)
Q: Are DF3-12S-2DSA(20) and DF3-12S-2DSA(25) physically interchangeable?
A: Yes. Both connectors share identical mechanical dimensions, pitch, mounting type, and contact configuration. They are direct physical substitutes.
Q: What is the difference between these two part numbers?
A: The primary differences are product status and RoHS compliance. The DF3-12S-2DSA(20) is obsolete and RoHS non-compliant. The DF3-12S-2DSA(25) is active production and RoHS compliant. Electrical and mechanical specifications are identical.
Q: Can I use DF3-12S-2DSA(25) in place of DF3-12S-2DSA(20) in existing designs?
A: Yes. The DF3-12S-2DSA(25) is a direct functional equivalent and will operate identically in applications designed for the DF3-12S-2DSA(20).
Q: What does the packaging difference mean?
A: The DF3-12S-2DSA(25) is supplied in tube packaging, which is standard for active production parts. The DF3-12S-2DSA(20) packaging information is not specified. This does not affect electrical or mechanical performance.
Q: Are there any compliance considerations when switching to DF3-12S-2DSA(25)?
A: The DF3-12S-2DSA(25) is RoHS compliant, making it suitable for applications subject to RoHS regulations. The DF3-12S-2DSA(20) is RoHS non-compliant. Both parts maintain UL94 V-0 flammability rating and identical electrical specifications.
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