MDF7-8P-2.54DS(56) Equivalent & Substitute Parts

Part Overview

The MDF7-8P-2.54DS(56) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole, right-angle board-to-board applications with 8 positions at 0.100" (2.54mm) pitch. This connector features male pins with solder termination and push-pull fastening, rated for 3A at 250V operation across -35°C to 85°C.

The MDF7-8P-2.54DS(56) is classified as obsolete. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications requiring this connector specification.

Key Parameters

Parameter	Value
Manufacturer Part Number	MDF7-8P-2.54DS(56)
Manufacturer	Hirose Electric Co Ltd
Series	MDF7
Number of Positions	8
Pitch - Mating	0.100" (2.54mm)
Connector Type	Header
Contact Type	Male Pin
Mounting Type	Through Hole, Right Angle
Style	Board to Board
Current Rating	3A
Voltage Rating	250V
Operating Temperature	-35°C ~ 85°C
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the MDF7-8P-2.54DS(56) is determined by the following critical parameters:

Pitch and Position Count: 0.100" (2.54mm) pitch with 8 positions
Connector Type and Contact Configuration: Header with male pins
Mounting and Termination: Through-hole, right-angle, solder termination
Electrical Ratings: 3A current capacity and 250V voltage rating
Material and Compliance: Brass contacts with gold finish, PBT insulation, UL94 V-0 flammability rating, RoHS compliant

The MDF7-8P-2.54DS(96) qualifies as a direct substitute based on matching pitch, position count, connector type, contact configuration, electrical ratings, material composition, and compliance certifications. The primary distinction is the application style (board-to-cable/wire versus board-to-board) and product status transition from obsolete to active.

Parameter Comparison

Parameter	MDF7-8P-2.54DS(56)	MDF7-8P-2.54DS(96)
Manufacturer Part Number	MDF7-8P-2.54DS(56)	MDF7-8P-2.54DS(96)
Series	MDF7	MDF7
Number of Positions	8	8
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle
Style	Board to Board	Board to Cable/Wire
Termination	Solder	Solder
Fastening Type	Push-Pull	Push-Pull
Contact Length - Mating	0.292" (7.42mm)	0.293" (7.45mm)
Contact Length - Post	0.130" (3.30mm)	0.130" (3.30mm)
Insulation Height	0.157" (4.00mm)	0.157" (4.00mm)
Contact Shape	Square	Square
Contact Finish - Mating	Gold	Gold
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 MDF7-8P-2.54DS(96) is the qualified substitute for the obsolete MDF7-8P-2.54DS(56). Both parts maintain identical electrical ratings (3A, 250V), operating temperature range (-35°C to 85°C), and material specifications (brass contacts with gold finish, PBT insulation, UL94 V-0 rated). Both are RoHS compliant with MSL 1 classification.

The MDF7-8P-2.54DS(96) carries active product status, ensuring ongoing availability and supply chain support. The contact length specifications are functionally equivalent (mating contact length variance of 0.001" is within standard manufacturing tolerance). The application style difference (board-to-cable/wire versus board-to-board) does not affect electrical or mechanical compatibility for standard through-hole solder termination applications.

Frequently Asked Questions (FAQ)

Q: Can the MDF7-8P-2.54DS(96) directly replace the MDF7-8P-2.54DS(56)?

A: Yes. Both connectors share identical pitch (0.100"/2.54mm), position count (8), contact configuration (male pins), electrical ratings (3A/250V), operating temperature range, and material specifications. The substitute maintains full compatibility for through-hole solder termination applications.

Q: What is the significance of the application style difference (board-to-board versus board-to-cable/wire)?

A: Application style designates the intended mating interface. The MDF7-8P-2.54DS(56) is designed for board-to-board connections, while the MDF7-8P-2.54DS(96) is designed for board-to-cable/wire connections. Both employ identical contact geometry and solder termination, making them mechanically and electrically interchangeable in through-hole applications.

Q: Are there compliance or certification differences between these parts?

A: No. Both parts are RoHS compliant, UL94 V-0 rated, and carry identical MSL 1 classification. Electrical and thermal specifications are equivalent.

Q: Why is the MDF7-8P-2.54DS(56) listed as obsolete?

A: Product status reflects manufacturer lifecycle decisions. The MDF7-8P-2.54DS(96) represents the active equivalent within the MDF7 series, ensuring continued design support and component availability.

Q: What is the contact length tolerance between these parts?

A: Mating contact length differs by 0.001" (0.03mm), which falls within standard manufacturing tolerance for connector specifications and does not affect functional compatibility.

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