MDF7-5S-2.54DSA Equivalent & Substitute Parts

Part Overview

The MDF7-5S-2.54DSA is a 5-position rectangular receptacle connector manufactured by Hirose Electric Co Ltd, designed for board-to-board applications with 0.100" (2.54mm) pitch through-hole mounting. This connector features female socket contacts with tin plating, solder termination, and push-pull fastening. The main part number is currently listed as obsolete, making identification of active equivalent parts essential for ongoing production and maintenance applications.

Key Parameters

Parameter	Specification
Connector Type	Receptacle, Bottom Entry
Number of Positions	5
Pitch - Mating	0.100" (2.54mm)
Contact Type	Female Socket
Mounting Type	Through Hole
Termination	Solder
Current Rating	3A
Voltage Rating	250VAC
Operating Temperature	-35°C ~ 85°C
Contact Material	Phosphor Bronze
Insulation Material	Polyamide (PA), Nylon
Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution of the MDF7-5S-2.54DSA is based on strict equivalence of the following critical parameters:

Connector type: Receptacle, bottom entry configuration
Position count: 5 positions
Mating pitch: 0.100" (2.54mm)
Contact type: Female socket
Mounting method: Through hole, solder termination
Electrical ratings: 3A current, 250VAC voltage
Operating temperature range: -35°C ~ 85°C
Material specifications: Phosphor bronze contacts, polyamide insulation, UL94 V-0 rating

The substitute part MDF7-5S-2.54DSA(55) maintains all critical electrical and mechanical parameters while offering improved compliance status and higher inventory availability.

Parameter Comparison

Parameter	MDF7-5S-2.54DSA	MDF7-5S-2.54DSA(55)
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd
Series	MDF7	MDF7
Product Status	Obsolete	Active
Connector Type	Receptacle, Bottom Entry	Receptacle, Bottom Entry
Number of Positions	5	5
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Contact Type	Female Socket	Female Socket
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Current Rating	3A	3A
Voltage Rating	250VAC	250VAC
Operating Temperature	-35°C ~ 85°C	-35°C ~ 85°C
Contact Material	Phosphor Bronze	Phosphor Bronze
Contact Finish - Mating	Tin	Tin
Insulation Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon
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)
Flammability Rating	UL94 V-0	UL94 V-0
RoHS Status	RoHS non-compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040
Inventory Status	932 Pcs New Original In Stock	3091 Pcs New Original In Stock
Packaging	-	Bulk

Engineering Selection Recommendations

The MDF7-5S-2.54DSA(55) is the direct active equivalent for the obsolete MDF7-5S-2.54DSA. Both parts maintain identical electrical and mechanical specifications across all critical parameters including connector configuration, contact ratings, operating temperature range, and material composition.

The primary distinction is product status and regulatory compliance. The MDF7-5S-2.54DSA(55) is an active product with ROHS3 compliance, whereas the original part is obsolete and RoHS non-compliant. For new designs and ongoing production requiring regulatory compliance, the MDF7-5S-2.54DSA(55) is the appropriate selection. The substitute part also offers significantly higher inventory availability at 3091 pieces compared to 932 pieces for the obsolete variant.

Both parts carry identical electrical ratings (3A, 250VAC), temperature specifications (-35°C ~ 85°C), and mechanical dimensions, ensuring direct functional interchangeability in board-to-board applications.

Frequently Asked Questions (FAQ)

Q: Are MDF7-5S-2.54DSA and MDF7-5S-2.54DSA(55) mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including 5-position configuration, 0.100" (2.54mm) pitch, through-hole mounting, and solder termination. Physical dimensions and contact geometry are equivalent.

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

A: The primary differences are product status and regulatory compliance. MDF7-5S-2.54DSA(55) is an active product with ROHS3 compliance and higher inventory availability. The original MDF7-5S-2.54DSA is obsolete and RoHS non-compliant.

Q: Can MDF7-5S-2.54DSA(55) be used as a direct replacement in existing designs?

A: Yes. The substitute part maintains all electrical ratings (3A, 250VAC), operating temperature range (-35°C ~ 85°C), and mechanical specifications. No design modifications are required.

Q: What is the packaging difference?

A: MDF7-5S-2.54DSA(55) is supplied in bulk packaging, whereas packaging information for the original part is not specified.

Q: Are there any compliance considerations when switching to MDF7-5S-2.54DSA(55)?

A: MDF7-5S-2.54DSA(55) offers improved compliance status with ROHS3 certification. Both parts maintain REACH Unaffected status and identical ECCN and HTSUS classifications.

Q: What are the contact finish specifications?

A: Both parts feature tin plating on mating contacts. MDF7-5S-2.54DSA(55) additionally specifies tin plating on post contacts with 78.7µin (2.00µm) thickness, providing enhanced durability and corrosion resistance.

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