Equivalent & Substitute Parts for MDF7-14D-2.54DSA

Part Overview

The MDF7-14D-2.54DSA is a 14-position rectangular receptacle connector manufactured by Hirose Electric Co Ltd, designed for board-to-board applications with 0.100" (2.54mm) pitch spacing. This connector features a bottom-entry configuration with through-hole solder termination and push-pull fastening. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Manufacturer Part Number	MDF7-14D-2.54DSA
Manufacturer	Hirose Electric Co Ltd
Series	MDF7
Connector Type	Receptacle, Bottom Entry
Number of Positions	14
Pitch - Mating	0.100" (2.54mm)
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Current Rating	3A
Voltage Rating	250VAC
Operating Temperature	-35°C ~ 85°C
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the MDF7-14D-2.54DSA is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Connector type: Receptacle, bottom entry
Number of positions: 14
Pitch spacing: 0.100" (2.54mm)
Number of rows: 2
Row spacing: 0.100" (2.54mm)
Mounting type: Through hole
Termination method: Solder
Current rating: 3A minimum
Voltage rating: 250VAC minimum
Operating temperature range: -35°C to 85°C minimum
Insulation material: Polyamide (PA), Nylon
Contact shape: Square
Contact material: Phosphor Bronze

Allowable Variations:

Contact finish on mating surface (tin or gold)
Contact finish thickness specifications
Product status (active or obsolete)
RoHS compliance status
Contact finish on post surface

Parameter Comparison

Parameter	MDF7-14D-2.54DSA (Main Part)	MDF7-14D-2.54DSA(56) (Substitute)
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd
Series	MDF7	MDF7
Connector Type	Receptacle, Bottom Entry	Receptacle, Bottom Entry
Number of Positions	14	14
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	2	2
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Fastening Type	Push-Pull	Push-Pull
Contact Finish - Mating	Tin	Gold
Insulation Color	Black	Black
Insulation Height	0.197" (5.00mm)	0.197" (5.00mm)
Contact Length - Post	0.118" (3.00mm)	0.118" (3.00mm)
Operating Temperature	-35°C ~ 85°C	-35°C ~ 85°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Current Rating (Amps)	3A	3A
Voltage Rating	250VAC	250VAC
Insulation Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon
Contact Shape	Square	Square
Contact Material	Phosphor Bronze	Phosphor Bronze
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

The MDF7-14D-2.54DSA(56) is a direct substitute for the MDF7-14D-2.54DSA. Both connectors share identical mechanical and electrical specifications, including connector type, position count, pitch spacing, mounting configuration, and performance ratings.

The primary distinction between these parts is the contact finish on the mating surface: the main part features tin plating, while the substitute features gold plating. Both finishes are compatible with the same mating connector designs and maintain equivalent electrical performance within the specified operating parameters.

An additional consideration is product status: the main part is classified as obsolete, while the substitute is active. The substitute part is RoHS compliant, whereas the main part is RoHS non-compliant. For new designs or systems requiring regulatory compliance, the MDF7-14D-2.54DSA(56) is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can MDF7-14D-2.54DSA(56) be used as a direct replacement for MDF7-14D-2.54DSA?

A: Yes. Both connectors are identical in all critical parameters: 14-position receptacle configuration, 0.100" (2.54mm) pitch, bottom-entry design, through-hole mounting, and 3A/250VAC ratings. The gold contact finish of the substitute provides equivalent electrical performance to the tin finish of the original part.

Q: What is the difference between tin and gold contact finishes?

A: Both tin and gold finishes are suitable for the MDF7 series connectors. The contact finish does not affect mechanical compatibility or electrical performance within the specified operating parameters. Selection between tin and gold is typically driven by application requirements, environmental conditions, or regulatory compliance needs.

Q: Is the MDF7-14D-2.54DSA(56) RoHS compliant?

A: Yes, the MDF7-14D-2.54DSA(56) is RoHS compliant. The original MDF7-14D-2.54DSA is RoHS non-compliant. For applications requiring RoHS compliance, the substitute part is the appropriate selection.

Q: Are there any physical dimension differences between these parts?

A: No. Both connectors have identical physical dimensions, including insulation height of 0.197" (5.00mm), contact length of 0.118" (3.00mm), and row spacing of 0.100" (2.54mm). PCB footprints are identical.

Q: What is the operating temperature range for both parts?

A: Both the MDF7-14D-2.54DSA and MDF7-14D-2.54DSA(56) operate across the temperature range of -35°C to 85°C and maintain UL94 V-0 flammability ratings throughout this range.

Q: Can these connectors be used in high-reliability applications?

A: Both connectors meet the electrical and mechanical specifications for standard industrial applications. Moisture sensitivity level is 1 (unlimited) for both parts, indicating no special moisture handling requirements during storage or assembly.

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