MDF7B-16P-2.54DSA(55) Equivalent & Substitute Parts

Part Overview

The MDF7B-16P-2.54DSA(55) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting with 16 positions at 0.100" (2.54mm) pitch. This part is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and ongoing production requirements. The connector features male pins with tin-plated brass contacts, unshrouded design, and push-pull fastening suitable for board-to-board applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	MDF7B-16P-2.54DSA(55)
Manufacturer	Hirose Electric Co Ltd
Category	Rectangular Connectors
Series	MDF7
Product Status	Obsolete
Connector Type	Header
Contact Type	Male Pin
Number of Positions	16
Pitch - Mating	0.100" (2.54mm)
Number of Rows	1
Mounting Type	Through Hole
Termination	Solder
Contact Material	Brass
Contact Finish - Mating	Tin
Insulation Material	Polybutylene Terephthalate (PBT)
Operating Temperature	-35°C ~ 85°C
Current Rating	3A
Voltage Rating	250V
RoHS Status	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the MDF7B-16P-2.54DSA(55) is determined by the following critical parameters:

Number of positions: 16
Pitch: 0.100" (2.54mm)
Mounting type: Through hole
Termination: Solder
Contact type: Male pin
Operating temperature range: -35°C ~ 85°C
Current rating: 3A minimum
Voltage rating: 250V minimum
RoHS compliance requirement

The primary direct substitute is MDF7B-16P-2.54DSA(95), which maintains identical electrical and mechanical specifications while offering active product status. The Samtec DW series connectors (DW-16-10-F-S-480 through DW-16-10-F-S-525) provide functional equivalence with variations in stack height and post length, accommodating different PCB spacing requirements while maintaining the core 16-position, 2.54mm pitch configuration.

Parameter Comparison

Parameter	MDF7B-16P-2.54DSA(55)	MDF7B-16P-2.54DSA(95)	DW-16-10-F-S-480 to DW-16-10-F-S-525
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Samtec Inc.
Number of Positions	16	16	16
Pitch	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Type	Male Pin	Male Pin	Male Pin
Number of Rows	1	1	1
Mounting Type	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder
Operating Temperature	-35°C ~ 85°C	-35°C ~ 85°C	Not specified in data
Current Rating	3A	3A	Not specified in data
Voltage Rating	250V	250VAC	Not specified in data
Contact Finish - Mating	Tin	Tin	Gold
Insulation Material	PBT	PBT	Not specified in data
Product Status	Obsolete	Active	Active
RoHS Status	RoHS Compliant	RoHS Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For applications currently using MDF7B-16P-2.54DSA(55), the MDF7B-16P-2.54DSA(95) is the primary recommended substitute. Both parts are from the same Hirose MDF7 series, maintain identical electrical ratings (3A, 250V), operate across the same temperature range (-35°C ~ 85°C), and carry RoHS compliance certification. The MDF7B-16P-2.54DSA(95) is currently in active production status with 767 units in stock, ensuring supply continuity.

The Samtec DW-16-10-F-S series (480 through 525 variants) provides alternative solutions for applications where stack height flexibility is required. These connectors maintain the 16-position, 2.54mm pitch configuration and through-hole solder termination. The DW series features gold-plated mating contacts and ROHS3 compliance. Selection among DW variants (480, 485, 495, 500, 505, 510, 515, 520, 525) depends on required stack height, ranging from 0.480" to 0.525", with corresponding post length variations.

Frequently Asked Questions (FAQ)

Q: Can MDF7B-16P-2.54DSA(95) be used as a direct replacement for MDF7B-16P-2.54DSA(55)?

A: Yes. Both connectors share identical electrical specifications (16 positions, 2.54mm pitch, 3A current rating, 250V voltage rating), mechanical configuration (through-hole solder termination, male pins), and operating temperature range (-35°C ~ 85°C). The primary difference is product status: the (55) variant is obsolete while the (95) variant is active production.

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

A: The MDF7B series uses tin-plated brass contacts, while the Samtec DW series uses gold-plated contacts. Both finishes provide adequate corrosion resistance for standard applications. Tin plating is suitable for general-purpose interconnections, while gold plating offers enhanced durability in high-reliability or high-cycle mating applications.

Q: How do I select the correct Samtec DW variant (480, 485, 495, 500, 505, 510, 515, 520, 525)?

A: Selection is based on required stack height. The numeric suffix indicates stack height in thousandths of an inch: DW-16-10-F-S-480 = 0.480" stack height, DW-16-10-F-S-525 = 0.525" stack height. Choose the variant that accommodates your PCB spacing requirements. All variants maintain the same 16-position, 2.54mm pitch configuration.

Q: Are all substitute parts RoHS compliant?

A: Yes. MDF7B-16P-2.54DSA(95) is RoHS Compliant. All Samtec DW-16-10-F-S variants are ROHS3 Compliant, meeting current regulatory requirements.

Q: What is the inventory status for these substitute parts?

A: MDF7B-16P-2.54DSA(95) has 767 units in stock. Samtec DW series variants have inventory ranging from 616 to 1081 units across the different stack height options, ensuring availability for production requirements.

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