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Hirose DF3-4P-2DS Rectangular Connector Equivalent & Substitute Parts
Part Overview
The Hirose DF3-4P-2DS is a through-hole, right-angle rectangular connector header with 4 positions at 2.00mm pitch. This connector is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design and procurement requirements. The DF3 series provides board-to-board or cable connectivity with shrouded 4-wall construction and push-pull fastening.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Type | Header |
| Contact Type | Male Pin |
| Number of Positions | 4 |
| Pitch - Mating | 0.079" (2.00mm) |
| Mounting Type | Through Hole, Right Angle |
| Shrouding | Shrouded - 4 Wall |
| Fastening Type | Push-Pull |
| Current Rating | 3A |
| Operating Temperature | -55°C ~ 105°C |
| Material Flammability Rating | UL94 V-0 |
Substitute Part Grouping Explanation
Substitution of the DF3-4P-2DS is determined by the following critical parameters:
- Connector Type, Contact Type, and Position Count: All substitute parts maintain header configuration with male pins in 4-position layout
- Pitch and Mounting: 2.00mm mating pitch and through-hole right-angle mounting are preserved across all alternatives
- Shrouding and Fastening: 4-wall shrouded construction with push-pull fastening remains consistent
- Electrical and Thermal Ratings: 3A current rating and -55°C to 105°C operating temperature range are maintained
- Material Compliance: UL94 V-0 flammability rating is consistent across all parts
The substitute parts DF3A-4P-2DS and DF3-4P-2DS(01) are functionally equivalent within these parameters. Differences in contact finish (tin versus gold) and product status (active versus obsolete) are secondary considerations that do not affect mechanical or electrical compatibility.
Parameter Comparison
| Parameter | DF3-4P-2DS (Main) | DF3A-4P-2DS | DF3-4P-2DS(01) |
|---|---|---|---|
| Manufacturer | Hirose Electric Co Ltd | Hirose Electric Co Ltd | Hirose Electric Co Ltd |
| Product Status | Obsolete | Active | Active |
| Connector Type | Header | Header | Header |
| Contact Type | Male Pin | Male Pin | Male Pin |
| Number of Positions | 4 | 4 | 4 |
| Pitch - Mating | 0.079" (2.00mm) | 0.079" (2.00mm) | 0.079" (2.00mm) |
| Mounting Type | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle |
| Shrouding | Shrouded - 4 Wall | Shrouded - 4 Wall | Shrouded - 4 Wall |
| Fastening Type | Push-Pull | Push-Pull | Push-Pull |
| Contact Finish - Mating | Tin | Tin | Gold |
| Current Rating (Amps) | 3A | 3A | 3A |
| Operating Temperature | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 | UL94 V-0 |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
DF3A-4P-2DS is the primary substitute for the obsolete DF3-4P-2DS. This part maintains tin contact finish matching the original specification and carries active product status with ROHS3 compliance. Inventory availability is substantial at 2218 pieces.
DF3-4P-2DS(01) is the manufacturer-recommended alternative, designated as the direct successor to the DF3-4P-2DS. This variant features gold contact finish and ROHS3 compliance. Highest inventory availability at 5700 pieces supports procurement continuity. The gold finish provides enhanced corrosion resistance compared to tin.
Both substitute parts are ROHS3 compliant, addressing regulatory requirements that the original part does not meet. Selection between DF3A-4P-2DS and DF3-4P-2DS(01) depends on contact finish requirements and design specifications for corrosion resistance.
Frequently Asked Questions (FAQ)
Q: Can DF3A-4P-2DS and DF3-4P-2DS(01) be used interchangeably with DF3-4P-2DS?
A: Yes. Both parts maintain identical mechanical and electrical specifications including 4-position layout, 2.00mm pitch, through-hole right-angle mounting, 3A current rating, and -55°C to 105°C operating temperature range. The primary differences are contact finish (tin versus gold) and product status (active versus obsolete).
Q: What is the significance of the contact finish difference between tin and gold?
A: Contact finish affects corrosion resistance and long-term reliability. Gold finish provides superior corrosion resistance in harsh environments, while tin finish is suitable for standard applications. Selection depends on application requirements and environmental exposure.
Q: Why is RoHS compliance important for this substitution?
A: The original DF3-4P-2DS is RoHS non-compliant. Both substitute parts (DF3A-4P-2DS and DF3-4P-2DS(01)) are ROHS3 compliant, meeting current regulatory requirements for electronic components in many markets.
Q: Are there packaging differences between the substitute parts?
A: Both DF3A-4P-2DS and DF3-4P-2DS(01) are supplied in bulk packaging. The original DF3-4P-2DS packaging information is not specified in available data.
Q: Which substitute part should be selected for new designs?
A: DF3-4P-2DS(01) is the manufacturer-recommended part for new designs, offering the highest inventory availability and gold contact finish for enhanced reliability. DF3A-4P-2DS remains a valid alternative if tin finish meets application requirements.
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