MDF7-25P-2.54DS(55) Equivalent & Substitute Parts

Part Overview

The MDF7-25P-2.54DS(55) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole, right-angle mounting applications. This 25-position connector operates at 3A current rating and 250V voltage rating with a 0.100" (2.54mm) pitch. The part is currently listed as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement planning.

Key Parameters

Parameter	Value
Manufacturer Part Number	MDF7-25P-2.54DS(55)
Manufacturer	Hirose Electric Co Ltd
Series	MDF7
Number of Positions	25
Pitch - Mating	0.100" (2.54mm)
Connector Type	Header
Contact Type	Male Pin
Mounting Type	Through Hole, Right Angle
Current Rating	3A
Voltage Rating	250V
Operating Temperature	-35°C ~ 85°C
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the MDF7-25P-2.54DS(55) is determined by the following critical parameters:

Pitch and Position Count: 0.100" (2.54mm) pitch with 25 positions
Connector Type and Contact Configuration: Header with male pins
Mounting Method: Through hole, right-angle orientation
Electrical Ratings: 3A current and 250V voltage minimum
Material and Compliance: Brass contacts with tin finish, PBT insulation, UL94 V-0 rated, RoHS compliant

The MDF7-25P-2.54DS(95) qualifies as a direct substitute based on matching these core parameters. Both parts share identical pitch, position count, contact material, insulation material, electrical ratings, temperature range, and compliance certifications.

Parameter Comparison

Parameter	MDF7-25P-2.54DS(55)	MDF7-25P-2.54DS(95)	Match Status
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Identical
Series	MDF7	MDF7	Identical
Number of Positions	25	25	Identical
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	Identical
Connector Type	Header	Header	Identical
Contact Type	Male Pin	Male Pin	Identical
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Identical
Termination	Solder	Solder	Identical
Contact Material	Brass	Brass	Identical
Contact Finish - Mating	Tin	Tin	Identical
Contact Finish - Post	Tin	Tin	Identical
Insulation Material	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Identical
Insulation Color	Black	Black	Identical
Insulation Height	0.157" (4.00mm)	0.157" (4.00mm)	Identical
Current Rating	3A	3A	Identical
Voltage Rating	250V	250VAC	Compatible
Operating Temperature	-35°C ~ 85°C	-35°C ~ 85°C	Identical
Material Flammability Rating	UL94 V-0	UL94 V-0	Identical
RoHS Status	RoHS Compliant	RoHS Compliant	Identical
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Identical
Product Status	Obsolete	Active	Substitute is Active

Engineering Selection Recommendations

The MDF7-25P-2.54DS(95) is the appropriate substitute for the obsolete MDF7-25P-2.54DS(55). Both components are manufactured by Hirose Electric Co Ltd within the same MDF7 series and maintain identical electrical, mechanical, and material specifications. The substitute part carries active product status, ensuring continued availability and manufacturing support.

Both parts meet UL94 V-0 flammability requirements and RoHS compliance standards. The electrical ratings of 3A at 250V are maintained across both variants. Contact geometry, material composition (brass with tin finish), and insulation properties (PBT, black color) are functionally equivalent.

The primary distinction is product lifecycle status: the original part is obsolete while the substitute remains in active production. This transition supports long-term supply chain continuity for applications requiring 25-position, 2.54mm pitch rectangular connectors with right-angle through-hole mounting.

Frequently Asked Questions (FAQ)

Q: Can the MDF7-25P-2.54DS(95) be used as a direct replacement for the MDF7-25P-2.54DS(55)?

A: Yes. Both parts share identical pitch (0.100" / 2.54mm), position count (25), contact configuration (male pins), mounting method (through-hole right-angle), electrical ratings (3A / 250V), and material specifications. The substitute is functionally equivalent for all applications where the original part was specified.

Q: What is the difference between these two part numbers?

A: The primary difference is product status. The MDF7-25P-2.54DS(55) is obsolete, while the MDF7-25P-2.54DS(95) is active. The suffix designation (55 vs. 95) indicates different manufacturing or packaging variants within the same series, but electrical and mechanical parameters remain identical.

Q: Are there any compatibility concerns when switching to the MDF7-25P-2.54DS(95)?

A: No compatibility concerns exist. Both parts conform to identical specifications for pitch, position count, contact type, mounting orientation, and electrical ratings. PCB footprints and mating interface requirements are identical.

Q: What is the packaging difference?

A: The MDF7-25P-2.54DS(55) packaging is not specified in available data. The MDF7-25P-2.54DS(95) is supplied in bag packaging. This is a logistics consideration only and does not affect component functionality or performance.

Q: Are both parts RoHS compliant?

A: Yes. Both the MDF7-25P-2.54DS(55) and MDF7-25P-2.54DS(95) are RoHS compliant with UL94 V-0 flammability rating and MSL 1 (unlimited moisture sensitivity level).

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