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MDF7P-26DP-2.54DSA(33) Equivalent & Substitute Parts
Part Overview
The MDF7P-26DP-2.54DSA(33) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole board-to-board applications. This connector features 26 positions arranged in 2 rows with 0.100" (2.54mm) pitch spacing. The part is currently listed as obsolete, making equivalent substitute parts necessary for ongoing design support and component procurement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | MDF7P-26DP-2.54DSA(33) |
| Manufacturer | Hirose Electric Co Ltd |
| Series | MDF7 |
| Connector Type | Header |
| Contact Type | Male Pin |
| Number of Positions | 26 |
| Number of Rows | 2 |
| Pitch - Mating | 0.100" (2.54mm) |
| Row Spacing - Mating | 0.100" (2.54mm) |
| Mounting Type | Through Hole |
| Termination | Solder |
| Current Rating | 3A |
| Voltage Rating | 250V |
| Operating Temperature | -35°C ~ 85°C |
| Product Status | Obsolete |
| RoHS Status | RoHS Compliant |
Substitute Part Grouping Explanation
Substitution for the MDF7P-26DP-2.54DSA(33) is determined by the following critical parameters:
- Connector type (Header)
- Contact type (Male Pin)
- Number of positions (26)
- Number of rows (2)
- Pitch spacing (0.100" / 2.54mm)
- Row spacing (0.100" / 2.54mm)
- Mounting type (Through Hole)
- Termination method (Solder)
- Current rating (3A)
- Voltage rating (250V)
- Operating temperature range (-35°C ~ 85°C)
- Material flammability rating (UL94 V-0)
- RoHS compliance
The MDF7P-26DP-2.54DSA(73) qualifies as a direct substitute based on matching all critical electrical and mechanical parameters. The primary difference is application style (board-to-cable/wire versus board-to-board) and product status (active versus obsolete).
Parameter Comparison
| Parameter | MDF7P-26DP-2.54DSA(33) | MDF7P-26DP-2.54DSA(73) |
|---|---|---|
| Manufacturer | Hirose Electric Co Ltd | Hirose Electric Co Ltd |
| Series | MDF7 | MDF7 |
| Connector Type | Header | Header |
| Contact Type | Male Pin | Male Pin |
| Number of Positions | 26 | 26 |
| Number of Rows | 2 | 2 |
| Pitch - Mating | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Row Spacing - Mating | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Mounting Type | Through Hole | Through Hole |
| Termination | Solder | Solder |
| Contact Length - Mating | 0.492" (12.50mm) | 0.492" (12.50mm) |
| Contact Length - Post | 0.118" (3.00mm) | 0.118" (3.00mm) |
| Overall Contact Length | 0.710" (18.03mm) | 0.710" (18.03mm) |
| Insulation Height | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Contact Shape | Square | Square |
| Contact Material | Brass | Brass |
| Insulation Material | Polybutylene Terephthalate (PBT) | Polybutylene Terephthalate (PBT) |
| Operating Temperature | -35°C ~ 85°C | -35°C ~ 85°C |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 |
| Insulation Color | Black | Black |
| Current Rating | 3A | 3A |
| Voltage Rating | 250V | 250VAC |
| RoHS Status | RoHS Compliant | RoHS Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active |
| Style | Board to Board | Board to Cable/Wire |
| Number of Positions Loaded | 20 | All |
Engineering Selection Recommendations
The MDF7P-26DP-2.54DSA(73) is the direct substitute for the obsolete MDF7P-26DP-2.54DSA(33). Both parts maintain identical electrical specifications (3A current rating, 250V voltage rating) and mechanical dimensions (26 positions, 2.54mm pitch, through-hole mounting). Both are RoHS compliant and rated UL94 V-0 for material flammability.
The MDF7P-26DP-2.54DSA(73) is currently in active production status with higher inventory availability (952 pieces in stock versus 773 pieces for the obsolete variant). This substitute is suitable for new designs and ongoing production requirements where the MDF7P-26DP-2.54DSA(33) is no longer available.
Frequently Asked Questions (FAQ)
Q: Can the MDF7P-26DP-2.54DSA(73) directly replace the MDF7P-26DP-2.54DSA(33)?
A: Yes. Both parts share identical electrical ratings (3A, 250V), mechanical dimensions (26 positions, 2.54mm pitch), contact geometry, and material specifications. The substitute is electrically and mechanically compatible.
Q: What is the difference between these two part numbers?
A: The primary differences are product status (active versus obsolete) and application style designation (board-to-cable/wire versus board-to-board). The MDF7P-26DP-2.54DSA(73) also has all 26 positions loaded, whereas the original has 20 positions loaded.
Q: Are both parts RoHS compliant?
A: Yes. Both the MDF7P-26DP-2.54DSA(33) and MDF7P-26DP-2.54DSA(73) are RoHS compliant with UL94 V-0 material flammability rating.
Q: What is the operating temperature range for these connectors?
A: Both parts operate across -35°C to 85°C, suitable for industrial and commercial applications.
Q: Is the packaging different between these parts?
A: The MDF7P-26DP-2.54DSA(73) is supplied in bag packaging, while packaging information for the MDF7P-26DP-2.54DSA(33) is not specified.
Q: What is the moisture sensitivity level?
A: Both parts have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without special moisture control requirements.
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