MDF7-14P-2.54DS(55) Equivalent & Substitute Parts

Part Overview

The MDF7-14P-2.54DS(55) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole, right-angle board-to-board applications with 14 positions at 0.100" (2.54mm) pitch. This part is classified as obsolete, making identification of active equivalent models essential for ongoing design support and procurement continuity. The substitute part MDF7-14P-2.54DS(95) provides functional equivalence while maintaining active product status.

Key Parameters

Parameter	Value
Manufacturer Part Number	MDF7-14P-2.54DS(55)
Manufacturer	Hirose Electric Co Ltd
Category	Rectangular Connectors
Series	MDF7
Number of Positions	14
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
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

The MDF7-14P-2.54DS(95) qualifies as a direct substitute based on the following critical parameters:

Identical manufacturer (Hirose Electric Co Ltd) and base series (MDF7)
Matching connector specifications: 14 positions, 0.100" (2.54mm) pitch, male pin header
Identical mounting configuration: through-hole, right-angle orientation
Equivalent electrical ratings: 3A current, 250V voltage (250VAC specification in substitute)
Matching insulation material (PBT), contact material (Brass), and contact finish (Tin)
Identical operating temperature range: -35°C ~ 85°C
Equivalent RoHS compliance and MSL rating (1 - Unlimited)

The primary distinction is application style: MDF7-14P-2.54DS(55) is configured for board-to-board connections, while MDF7-14P-2.54DS(95) is configured for board-to-cable/wire connections. Both maintain identical electrical and mechanical interface specifications at the mating surface.

Parameter Comparison

Parameter	MDF7-14P-2.54DS(55)	MDF7-14P-2.54DS(95)
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd
Series	MDF7	MDF7
Number of Positions	14	14
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
Insulation Height	0.157" (4.00mm)	0.157" (4.00mm)
Contact Shape	Square	Square
Contact Material	Brass	Brass
Contact Finish - Mating	Tin	Tin
Insulation Material	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)
Current Rating	3A	3A
Voltage Rating	250V	250VAC
Operating Temperature	-35°C ~ 85°C	-35°C ~ 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 MDF7-14P-2.54DS(95) is the appropriate selection for new designs and procurement activities. This part maintains active product status with Hirose Electric Co Ltd, ensuring long-term availability and supply chain stability. Both parts carry identical RoHS compliance certification and UL94 V-0 flammability ratings, meeting equivalent regulatory requirements.

The electrical and mechanical interface specifications are functionally equivalent. The application style difference (board-to-board versus board-to-cable/wire) does not affect the mating surface characteristics or pin configuration. Selection between these parts should be based on the specific application requirement: board-to-board interconnection or board-to-cable/wire termination.

Frequently Asked Questions (FAQ)

Q: Can MDF7-14P-2.54DS(95) directly replace MDF7-14P-2.54DS(55) in existing designs?

A: Yes, for applications requiring board-to-board connectivity. The mating interface, pin count, pitch, electrical ratings, and operating temperature specifications are identical. The substitute part is manufactured by the same supplier and maintains equivalent compliance certifications.

Q: What is the difference between the board-to-board and board-to-cable/wire styles?

A: The style designation indicates the intended termination method. Board-to-board connectors are designed for direct PCB-to-PCB mating. Board-to-cable/wire connectors are designed for termination to external wiring or cable assemblies. The mating surface specifications remain identical.

Q: Are there any voltage or current rating differences?

A: Both parts are rated for 3A current. The voltage rating is specified as 250V for MDF7-14P-2.54DS(55) and 250VAC for MDF7-14P-2.54DS(95). These specifications are equivalent for DC and AC applications within the stated range.

Q: What is the significance of the product status difference?

A: MDF7-14P-2.54DS(55) is classified as obsolete, indicating Hirose Electric Co Ltd has discontinued active production and support. MDF7-14P-2.54DS(95) maintains active status, ensuring continued availability, technical support, and supply chain reliability for new projects.

Q: Are the contact specifications identical?

A: Yes. Both parts feature brass contacts with tin finish, square contact shape, and identical mating contact length (approximately 0.29-0.30"). The post length is 0.130" (3.30mm) for both variants.

Q: What packaging is available for the substitute part?

A: MDF7-14P-2.54DS(95) is supplied in bag packaging. MDF7-14P-2.54DS(55) packaging information is not specified in the available data.

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