MDF7P-25P-2.54DSA Equivalent & Substitute Parts

Part Overview

The MDF7P-25P-2.54DSA is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting applications. This 25-position connector operates at 3A current rating and 250V voltage rating with a 0.100" (2.54mm) pitch configuration. The main part (MDF7P-25P-2.54DSA(55)) is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement planning.

Key Parameters

Parameter	Specification
Manufacturer Part Number	MDF7P-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
Contact Material	Brass
Insulation Material	Polybutylene Terephthalate (PBT)
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the MDF7P-25P-2.54DSA(55) is determined by the following critical parameters:

Connector type, contact type, and gender (Header, Male Pin)
Number of positions (25)
Pitch specification (0.100" / 2.54mm)
Mounting method (Through Hole)
Electrical ratings (3A current, 250V voltage minimum)
Operating temperature range (-35°C ~ 85°C)
Material compliance (PBT insulation, Brass contacts, RoHS Compliant)

The substitute part MDF7P-25P-2.54DSA(95) maintains all critical electrical, mechanical, and material specifications required for direct substitution. The primary difference is the connector style designation (Board to Cable/Wire versus Board to Board) and active product status, which does not affect electrical or mechanical compatibility for applications requiring this connector configuration.

Parameter Comparison

Parameter	MDF7P-25P-2.54DSA(55)	MDF7P-25P-2.54DSA(95)
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd
Series	MDF7	MDF7
Product Status	Obsolete	Active
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	0.492" (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 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)

Engineering Selection Recommendations

The MDF7P-25P-2.54DSA(95) is a direct substitute for the obsolete MDF7P-25P-2.54DSA(55). Both components are manufactured by Hirose Electric Co Ltd within the MDF7 series and share identical electrical specifications, mechanical dimensions, and material certifications. The substitute part maintains active product status, ensuring continued availability and supply chain support.

Both parts comply with RoHS requirements and carry UL94 V-0 flammability certification. The electrical performance parameters—3A current rating, 250V voltage rating, and -35°C to 85°C operating temperature range—are equivalent across both variants. Mechanical compatibility is confirmed through identical contact geometry, pitch spacing, and through-hole mounting specifications.

Frequently Asked Questions (FAQ)

Q: Can MDF7P-25P-2.54DSA(95) be used as a direct replacement for MDF7P-25P-2.54DSA(55)?

A: Yes. Both parts share identical electrical ratings (3A, 250V), mechanical dimensions (25 positions, 0.100" pitch), contact materials (Brass with Tin finish), and insulation specifications (PBT, UL94 V-0). The substitute part is actively manufactured, addressing the obsolescence status of the original component.

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

A: The primary difference is the connector style designation and product status. MDF7P-25P-2.54DSA(55) is classified as obsolete, while MDF7P-25P-2.54DSA(95) is active. The style designation reflects application context but does not affect electrical or mechanical compatibility for standard through-hole header applications.

Q: Are the packaging specifications different?

A: The substitute part is supplied in bag packaging. This does not affect component functionality or electrical performance. Verify packaging requirements for your specific procurement and assembly processes.

Q: Do both parts meet the same compliance standards?

A: Yes. Both components are RoHS Compliant with UL94 V-0 flammability rating and MSL 1 (Unlimited) moisture sensitivity level. Electrical and thermal specifications are identical.

Q: What are the critical parameters for substitution compatibility?

A: Substitution is valid when the following parameters match: 25-position count, 0.100" (2.54mm) pitch, male pin contact type, through-hole mounting, 3A minimum current rating, 250V minimum voltage rating, -35°C to 85°C operating temperature range, and PBT insulation material with Brass contacts.

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