MDF6-20DP-3.5DSA(05) Equivalent & Substitute Parts

Part Overview

The MDF6-20DP-3.5DSA(05) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting applications. This connector features a vertical orientation with 20 positions arranged in 2 rows, 3.5mm pitch spacing, and shrouded 4-wall construction. The product is currently classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	MDF6-20DP-3.5DSA(05)
Manufacturer	Hirose Electric Co Ltd
Series	MDF6
Connector Type	Header
Contact Type	Male Pin
Number of Positions	20
Number of Rows	2
Pitch - Mating	0.138" (3.50mm)
Row Spacing - Mating	0.197" (5.00mm)
Mounting Type	Through Hole
Shrouding	Shrouded - 4 Wall
Voltage Rating	300V
Operating Temperature	-30°C ~ 85°C
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the MDF6-20DP-3.5DSA(05) is determined by strict equivalence across the following critical parameters:

Series designation (MDF6)
Connector type and contact type (Header, Male Pin)
Position count and row configuration (20 positions, 2 rows)
Mating pitch and row spacing (3.50mm pitch, 5.00mm row spacing)
Mounting method (Through Hole)
Shrouding configuration (Shrouded - 4 Wall)
Electrical ratings (300V, -30°C ~ 85°C operating range)
Compliance standards (UL94 V-0, RoHS Compliant)

The substitute part MDF6-20DP-3.5DSA(23) maintains all critical electrical and mechanical parameters while offering active product status and improved availability.

Parameter Comparison

Parameter	MDF6-20DP-3.5DSA(05)	MDF6-20DP-3.5DSA(23)	Compatibility
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Identical
Series	MDF6	MDF6	Identical
Connector Type	Header	Header	Identical
Contact Type	Male Pin	Male Pin	Identical
Number of Positions	20	20	Identical
Number of Rows	2	2	Identical
Pitch - Mating	0.138" (3.50mm)	0.138" (3.50mm)	Identical
Row Spacing - Mating	0.197" (5.00mm)	0.197" (5.00mm)	Identical
Mounting Type	Through Hole	Through Hole	Identical
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Identical
Termination	Solder	Solder	Identical
Fastening Type	Latch Holder	Latch Holder	Identical
Contact Length - Mating	0.220" (5.59mm)	0.220" (5.60mm)	Equivalent
Contact Length - Post	0.138" (3.50mm)	0.138" (3.50mm)	Identical
Insulation Height	0.512" (13.00mm)	0.512" (13.00mm)	Identical
Contact Shape	Square	Square	Identical
Contact Finish - Mating	Tin-Copper	Tin	Equivalent
Contact Material	Brass	Brass	Identical
Insulation Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon	Identical
Operating Temperature	-30°C ~ 85°C	-30°C ~ 85°C	Identical
Voltage Rating	300V	300VAC/DC	Identical
Material Flammability Rating	UL94 V-0	UL94 V-0	Identical
Insulation Color	White	White	Identical
RoHS Status	RoHS Compliant	RoHS Compliant	Identical
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Identical
Product Status	Obsolete	Active	Substitute is active
Packaging	-	Bag	Substitute includes packaging

Engineering Selection Recommendations

The MDF6-20DP-3.5DSA(23) is the direct equivalent for the obsolete MDF6-20DP-3.5DSA(05). Both parts maintain identical electrical specifications, mechanical dimensions, and compliance certifications. The substitute part is currently in active production status with confirmed inventory availability, providing supply chain continuity for applications requiring this connector configuration.

The minor variation in contact finish specification (Tin-Copper versus Tin) and contact mating length tolerance (5.59mm versus 5.60mm) fall within acceptable engineering equivalence for this connector category and do not impact functional compatibility or performance characteristics.

Frequently Asked Questions (FAQ)

Q: Are the MDF6-20DP-3.5DSA(05) and MDF6-20DP-3.5DSA(23) mechanically interchangeable?

A: Yes. Both connectors share identical pitch spacing (3.50mm), row configuration (2 rows, 5.00mm spacing), mounting type (through hole), and overall dimensions. They are mechanically interchangeable in board-level applications.

Q: What is the difference between the contact finishes?

A: The original part specifies Tin-Copper contact finish, while the substitute specifies Tin finish. Both finishes provide equivalent electrical performance and corrosion resistance for this application category.

Q: Can I use the MDF6-20DP-3.5DSA(23) as a direct replacement in existing designs?

A: Yes. The substitute part maintains all critical electrical parameters, operating temperature range, voltage rating, and compliance certifications. No design modifications are required.

Q: What is the packaging difference?

A: The original part has unspecified packaging, while the substitute is supplied in bag packaging. This does not affect component functionality or performance.

Q: Are both parts RoHS compliant?

A: Yes. Both the MDF6-20DP-3.5DSA(05) and MDF6-20DP-3.5DSA(23) are RoHS compliant with UL94 V-0 flammability rating.

Q: Why is the original part obsolete?

A: Product obsolescence is determined by the manufacturer. The active substitute part MDF6-20DP-3.5DSA(23) provides equivalent functionality and is recommended for new designs and ongoing procurement.

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