MDF7-24DP-2.54DSA(55) Equivalent & Substitute Parts

Part Overview

The MDF7-24DP-2.54DSA(55) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting applications. This 24-position, 2-row connector with 0.100" (2.54mm) pitch provides board-to-board interconnection with male pin contacts and push-pull fastening. The part is currently obsolete, making identification of suitable substitutes essential for ongoing system support and component procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	MDF7-24DP-2.54DSA(55)
Manufacturer	Hirose Electric Co Ltd
Series	MDF7
Number of Positions	24
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Connector Type	Header
Contact Type	Male Pin
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Current Rating	3A
Voltage Rating	250V
Operating Temperature	-35°C ~ 85°C
Product Status	Obsolete
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution of the MDF7-24DP-2.54DSA(55) is determined by strict equivalence across the following critical parameters:

Number of positions: 24
Number of rows: 2
Pitch spacing: 0.100" (2.54mm)
Connector type: Header
Contact type: Male Pin
Mounting type: Through Hole
Termination method: Solder
Fastening type: Push-Pull
Current rating: 3A
Voltage rating: 250V
Operating temperature range: -35°C ~ 85°C
Material compliance: RoHS Compliant, UL94 V-0

The MDF7-24DP-2.54DSA(95) maintains all critical electrical and mechanical parameters required for direct substitution. The primary distinction lies in connector style (board-to-cable/wire versus board-to-board) and product status (active versus obsolete).

Parameter Comparison

Parameter	MDF7-24DP-2.54DSA(55)	MDF7-24DP-2.54DSA(95)
Manufacturer Part Number	MDF7-24DP-2.54DSA(55)	MDF7-24DP-2.54DSA(95)
Series	MDF7	MDF7
Number of Positions	24	24
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)
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Fastening Type	Push-Pull	Push-Pull
Contact Length - Mating	0.394" (10.00mm)	0.394" (10.00mm)
Contact Length - Post	0.118" (3.00mm)	0.118" (3.00mm)
Overall Contact Length	0.612" (15.54mm)	0.612" (15.54mm)
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)
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
Insulation Color	Black	Black
Product Status	Obsolete	Active
RoHS Status	RoHS Compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
Style	Board to Board	Board to Cable/Wire

Engineering Selection Recommendations

The MDF7-24DP-2.54DSA(95) is the direct substitute for the obsolete MDF7-24DP-2.54DSA(55). Both parts are manufactured by Hirose Electric Co Ltd within the MDF7 series and maintain identical electrical specifications, mechanical dimensions, and material certifications.

The MDF7-24DP-2.54DSA(95) is currently in active production status with confirmed inventory availability (916 Pcs New Original In Stock), whereas the MDF7-24DP-2.54DSA(55) is obsolete. Both parts carry RoHS compliance and UL94 V-0 flammability certification, meeting equivalent regulatory requirements.

The functional difference between these parts is the connector style designation: the (55) variant is specified for board-to-board applications, while the (95) variant is specified for board-to-cable/wire applications. This distinction does not affect the core electrical or mechanical compatibility for through-hole solder termination applications.

Frequently Asked Questions (FAQ)

Q: Can MDF7-24DP-2.54DSA(95) directly replace MDF7-24DP-2.54DSA(55)?

A: Yes. Both parts share identical pitch spacing (0.100" / 2.54mm), position count (24), row configuration (2 rows), contact specifications, current rating (3A), voltage rating (250V), operating temperature range (-35°C ~ 85°C), and material certifications (RoHS Compliant, UL94 V-0). The parts are mechanically and electrically interchangeable for through-hole solder applications.

Q: What is the difference between the (55) and (95) designations?

A: The designation suffix indicates connector style. The (55) is specified for board-to-board interconnection, while the (95) is specified for board-to-cable/wire interconnection. This distinction reflects intended application context rather than fundamental electrical or mechanical differences.

Q: Are there packaging differences between these parts?

A: The MDF7-24DP-2.54DSA(55) packaging is not specified in available documentation. The MDF7-24DP-2.54DSA(95) is supplied in bag packaging. Packaging differences do not affect component functionality or compatibility.

Q: What is the current availability status?

A: The MDF7-24DP-2.54DSA(55) is obsolete with 760 Pcs listed as new original in stock. The MDF7-24DP-2.54DSA(95) is active in production with 916 Pcs new original in stock. For new designs or ongoing procurement, the (95) variant is the recommended source.

Q: Are both parts RoHS compliant?

A: Yes. Both MDF7-24DP-2.54DSA(55) and MDF7-24DP-2.54DSA(95) are RoHS Compliant with UL94 V-0 material flammability rating and Moisture Sensitivity Level 1 (Unlimited).

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