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MDF7B-25P-2.54DSA(55) Equivalent & Substitute Parts
Part Overview
The MDF7B-25P-2.54DSA(55) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting applications. This connector features 25 positions at 0.100" (2.54mm) pitch with male pin contacts and unshrouded design. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement planning.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | MDF7B-25P-2.54DSA(55) |
| Manufacturer | Hirose Electric Co Ltd |
| Series | MDF7 |
| Connector Type | Header |
| Contact Type | Male Pin |
| Number of Positions | 25 |
| Pitch - Mating | 0.100" (2.54mm) |
| Mounting Type | Through Hole |
| Current Rating | 3A |
| Voltage Rating | 250V |
| Operating Temperature | -35°C ~ 85°C |
| RoHS Status | RoHS Compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility for the MDF7B-25P-2.54DSA(55) is determined by the following critical parameters:
- Connector series: MDF7
- Number of positions: 25
- Pitch specification: 0.100" (2.54mm)
- Contact type: Male pin
- Mounting method: Through hole
- Termination: Solder
- Current rating: 3A
- Voltage rating: 250V
- Operating temperature range: -35°C ~ 85°C
- Material compliance: RoHS compliant, UL94 V-0 flammability rating
The substitute part MDF7B-25P-2.54DSA(95) maintains all critical electrical and mechanical parameters required for functional equivalence within the MDF7 series.
Parameter Comparison
| Parameter | MDF7B-25P-2.54DSA(55) | MDF7B-25P-2.54DSA(95) |
|---|---|---|
| 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 | 25 | 25 |
| Pitch - Mating | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Number of Rows | 1 | 1 |
| Mounting Type | Through Hole | Through Hole |
| Termination | Solder | Solder |
| Fastening Type | Push-Pull | Push-Pull |
| Contact Length - Mating | 0.648" (16.47mm) | 0.648" (16.47mm) |
| Contact Length - Post | 0.118" (3.00mm) | 0.118" (3.00mm) |
| Insulation Height | 0.100" (2.54mm) | 0.100" (2.54mm) |
| Contact Shape | Square | Square |
| Contact Finish - Mating | Tin | Tin |
| Contact Finish - Post | Tin | Tin |
| 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 |
Engineering Selection Recommendations
The MDF7B-25P-2.54DSA(95) is the direct substitute for the obsolete MDF7B-25P-2.54DSA(55). Both components are manufactured by Hirose Electric Co Ltd within the same MDF7 series and maintain identical electrical and mechanical specifications across all critical parameters.
The primary distinction between these parts is product status: the MDF7B-25P-2.54DSA(55) is obsolete, while the MDF7B-25P-2.54DSA(95) maintains active production status. Both parts carry RoHS compliance certification and UL94 V-0 flammability rating, meeting current regulatory requirements.
For new designs or ongoing procurement requirements, the MDF7B-25P-2.54DSA(95) is the appropriate selection due to its active availability and identical functional characteristics.
Frequently Asked Questions (FAQ)
Q: Can MDF7B-25P-2.54DSA(95) be used as a direct replacement for MDF7B-25P-2.54DSA(55)?
A: Yes. Both components share identical electrical ratings (3A, 250V), mechanical dimensions, contact configuration (25 positions at 2.54mm pitch), and material specifications. The substitute maintains full functional equivalence.
Q: What is the difference between these two part numbers?
A: The primary difference is product lifecycle status. The MDF7B-25P-2.54DSA(55) is obsolete, while the MDF7B-25P-2.54DSA(95) is in active production. All electrical and mechanical parameters remain identical.
Q: Are there packaging differences between these parts?
A: The MDF7B-25P-2.54DSA(55) packaging is unspecified in available documentation. The MDF7B-25P-2.54DSA(95) is supplied in bag packaging. Packaging format does not affect connector functionality or compatibility.
Q: Do both parts meet current compliance standards?
A: Yes. Both the MDF7B-25P-2.54DSA(55) and MDF7B-25P-2.54DSA(95) are RoHS compliant and carry UL94 V-0 material flammability certification.
Q: What is the moisture sensitivity level for these connectors?
A: Both parts are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.
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