MDF6-12DP-3.5DSA(05) Equivalent & Substitute Parts

Part Overview

The MDF6-12DP-3.5DSA(05) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting with 12 positions arranged in 2 rows at 3.50mm pitch. This connector features shrouded 4-wall construction with solder termination and latch holder fastening. The part is currently obsolete, making identification of compatible substitutes essential for ongoing maintenance, repair, and legacy system support.

Key Parameters

Parameter	Value
Manufacturer Part Number	MDF6-12DP-3.5DSA(05)
Manufacturer	Hirose Electric Co Ltd
Series	MDF6
Connector Type	Header
Number of Positions	12
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
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the MDF6-12DP-3.5DSA(05) is determined by strict equivalence across the following critical parameters:

Connector series and type (MDF6 Header)
Position count and row configuration (12 positions, 2 rows)
Mating pitch and row spacing (3.50mm pitch, 5.00mm row spacing)
Mounting method (Through Hole)
Shrouding design (Shrouded - 4 Wall)
Electrical ratings (300V minimum)
Operating temperature range (-30°C ~ 85°C minimum)
Termination method (Solder)
Fastening type (Latch Holder)

The substitute part MDF6-12DP-3.5DSA(23) maintains full compatibility across all these parameters while offering active product status and improved availability.

Parameter Comparison

Parameter	MDF6-12DP-3.5DSA(05)	MDF6-12DP-3.5DSA(23)	Compatibility
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Identical
Series	MDF6	MDF6	Identical
Connector Type	Header	Header	Identical
Number of Positions	12	12	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 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	Equivalent
Material Flammability Rating	UL94 V-0	UL94 V-0	Identical
Insulation Color	White	White	Identical
Product Status	Obsolete	Active	Substitute is active
RoHS Status	RoHS Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Identical
ECCN	EAR99	EAR99	Identical
HTSUS	8536.69.4040	8536.69.4040	Identical

Engineering Selection Recommendations

The MDF6-12DP-3.5DSA(23) is the direct substitute for the obsolete MDF6-12DP-3.5DSA(05). Both parts share identical mechanical and electrical specifications across all critical parameters. The substitute part offers the advantage of active product status with current manufacturing support and improved inventory availability (890 pcs in stock versus 1069 pcs for the obsolete variant).

The contact finish specification differs between the two parts: the original features Tin-Copper plating while the substitute uses Tin plating. Both finishes meet the same electrical and environmental requirements for this connector class. The substitute's ROHS3 compliance status represents an updated regulatory certification relative to the original RoHS Compliant designation, indicating enhanced environmental compliance standards.

For new designs and ongoing production, the MDF6-12DP-3.5DSA(23) is the appropriate selection. For legacy system repairs requiring exact historical matching, the original part number remains available in limited inventory.

Frequently Asked Questions (FAQ)

Q: Can MDF6-12DP-3.5DSA(23) be used as a direct replacement for MDF6-12DP-3.5DSA(05)?

A: Yes. Both parts are mechanically and electrically identical across all functional parameters including pitch, row spacing, position count, mounting type, and electrical ratings. The parts are fully interchangeable in PCB designs and cable assemblies.

Q: What is the difference between the contact finishes?

A: The original part uses Tin-Copper plating while the substitute uses Tin plating. Both finishes provide equivalent electrical conductivity and corrosion resistance for this connector application. The contact finish thickness remains identical at 39.4µin (1.00µm) for mating surfaces.

Q: Why is the original part listed as obsolete?

A: Product obsolescence reflects Hirose Electric's manufacturing and support decisions. The substitute part MDF6-12DP-3.5DSA(23) maintains full compatibility while offering active production status and current availability.

Q: Are there packaging differences between these parts?

A: The original part number does not specify packaging information. The substitute is supplied in bag packaging. This difference does not affect connector functionality or performance.

Q: What compliance certifications apply to both parts?

A: Both parts meet UL94 V-0 material flammability requirements and carry EAR99 export classification. The substitute carries updated ROHS3 compliance certification. Both parts have Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements.

Q: Can these connectors be used interchangeably with other MDF6 series parts?

A: No. Substitution is limited to parts with identical position count (12), row configuration (2 rows), and pitch specifications (3.50mm mating pitch, 5.00mm row spacing). Other MDF6 variants with different position counts or pitch values are not compatible.

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