Request Quote
(Ships tomorrow)
MDF7B-20DP-2.54DSA(55) Equivalent & Substitute Parts
Part Overview
The MDF7B-20DP-2.54DSA(55) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole board-to-board applications. This connector features 20 positions arranged in 2 rows with 0.100" (2.54mm) pitch spacing, rated for 3A current and 250V voltage operation across an extended temperature range of -35°C to 85°C. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure component availability for new production runs and field replacements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | MDF7B-20DP-2.54DSA(55) |
| Manufacturer | Hirose Electric Co Ltd |
| Series | MDF7 |
| Connector Type | Header |
| Contact Type | Male Pin |
| Number of Positions | 20 |
| 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 to 85°C |
| Material Flammability Rating | UL94 V-0 |
| RoHS Status | RoHS Compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility for the MDF7B-20DP-2.54DSA(55) is determined by strict equivalence across the following critical parameters:
- Connector type (Header)
- Contact type (Male Pin)
- Number of positions (20)
- 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 minimum)
- Voltage rating (250V minimum)
- Operating temperature range (-35°C to 85°C minimum)
- Material flammability rating (UL94 V-0)
- RoHS compliance status
The MDF7B-20DP-2.54DSA(95) qualifies as a direct substitute based on matching all critical electrical and mechanical parameters while maintaining active product status within the same MDF7 series.
Parameter Comparison
| Parameter | MDF7B-20DP-2.54DSA(55) | MDF7B-20DP-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 | 20 | 20 |
| 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 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) |
| Insulation Color | Black | Black |
| Current Rating | 3A | 3A |
| Voltage Rating | 250V | 250VAC |
| Operating Temperature | -35°C to 85°C | -35°C to 85°C |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 |
| RoHS Status | RoHS Compliant | RoHS Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
The MDF7B-20DP-2.54DSA(95) is the qualified substitute for the obsolete MDF7B-20DP-2.54DSA(55). Both components are manufactured by Hirose Electric Co Ltd within the same MDF7 series and maintain identical electrical specifications, mechanical dimensions, and compliance certifications. The substitute part carries active product status, ensuring continued availability and supply chain reliability. Both parts are RoHS compliant and rated UL94 V-0 for material flammability. The electrical performance parameters—3A current rating, 250V voltage rating, and -35°C to 85°C operating temperature range—are equivalent across both parts. Selection of the MDF7B-20DP-2.54DSA(95) eliminates obsolescence risk while preserving full functional and mechanical compatibility with existing designs.
Frequently Asked Questions (FAQ)
Q: Can the MDF7B-20DP-2.54DSA(95) be used as a direct replacement for the MDF7B-20DP-2.54DSA(55)?
A: Yes. Both parts share identical connector type, position count, pitch spacing, row configuration, mounting method, and electrical ratings. The substitute maintains active product status within the same manufacturer series.
Q: What is the difference between the two part numbers?
A: The suffix designation (55 versus 95) indicates packaging and product lifecycle status. The MDF7B-20DP-2.54DSA(55) is obsolete, while the MDF7B-20DP-2.54DSA(95) is active. The electrical and mechanical specifications remain equivalent.
Q: Are there any compatibility concerns when switching from the obsolete to the active part?
A: No compatibility concerns exist. Both parts are manufactured by Hirose Electric Co Ltd, feature identical contact materials (brass with tin finish), insulation material (PBT), and mechanical dimensions. PCB footprints and mating interface specifications are identical.
Q: What is the packaging difference?
A: The MDF7B-20DP-2.54DSA(55) packaging is not specified in available data. The MDF7B-20DP-2.54DSA(95) is supplied in bag packaging. This difference does not affect component functionality or performance.
Q: Are both parts RoHS compliant?
A: Yes. Both the MDF7B-20DP-2.54DSA(55) and MDF7B-20DP-2.54DSA(95) are RoHS compliant and rated UL94 V-0 for material flammability.
Q: What is the moisture sensitivity level for these connectors?
A: Both parts carry Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without special moisture control requirements.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts