Molex 0039293126 Equivalent & Substitute Parts

Part Overview

The Molex 0039293126 is an active rectangular connector header designed for through-hole mounting in board-to-cable/wire applications. This 12-position, 2-row shrouded header with 0.165" (4.20mm) pitch and locking ramp fastening serves general purpose, industrial, and telecommunications applications. Substitute parts are identified to provide alternative sourcing options while maintaining functional and mechanical compatibility within the Mini-Fit Jr 5566 connector family and equivalent series.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	12
Number of Rows	2
Pitch - Mating	0.165" (4.20mm)
Row Spacing - Mating	0.165" (4.20mm)
Shrouding	Shrouded - 4 Wall
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Locking Ramp
Insulation Material	Polyamide (PA66), Nylon 6/6
Contact Material	Brass
Contact Finish - Mating	Tin
Contact Finish - Post	Tin
Insulation Height	0.504" (12.80mm)
Material Flammability Rating	UL94 V-2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0039293126 is determined by strict alignment of the following critical parameters:

Connector Type: Header
Contact Type: Male Pin
Number of Positions: 12
Number of Rows: 2
Pitch - Mating: 0.165" (4.20mm)
Row Spacing - Mating: 0.165" (4.20mm)
Shrouding: Shrouded - 4 Wall
Mounting Type: Through Hole
Termination: Solder
Fastening Type: Locking Ramp
Insulation Height: 0.504" (12.80mm)
Material Flammability Rating: UL94 V-2

The identified substitute parts meet all critical mechanical and electrical interface requirements. Variations in contact finish thickness, operating temperature ranges, and current/voltage ratings reflect manufacturer-specific design tolerances and do not affect physical interchangeability in standard board-to-cable applications.

Parameter Comparison

Parameter	Molex 0039293126	TE Connectivity 1-1586037-2	Adam Tech DMF-12-S
Manufacturer	Molex	TE Connectivity AMP Connectors	Adam Tech
Series	Mini-Fit Jr 5566	VAL-U-LOK	DMF
Connector Type	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin
Number of Positions	12	12	12
Number of Rows	2	2	2
Pitch - Mating	0.165" (4.20mm)	0.165" (4.20mm)	0.165" (4.20mm)
Row Spacing - Mating	0.165" (4.20mm)	0.165" (4.20mm)	0.165" (4.20mm)
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Mounting Type	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder
Fastening Type	Locking Ramp	Locking Ramp	Locking Ramp
Contact Length - Post	0.138" (4.60mm)	0.138" (4.60mm)	0.134" (3.40mm)
Insulation Height	0.504" (12.80mm)	0.504" (12.80mm)	0.504" (12.80mm)
Contact Material	Brass	Brass Alloy	Brass
Contact Finish - Mating	Tin	Tin	Tin
Contact Finish - Post	Tin	Tin	Tin
Insulation Material	Polyamide (PA66), Nylon 6/6	Polyamide (PA), Nylon	Polyamide (PA66), Nylon 6/6
Material Flammability Rating	UL94 V-2	UL94 V-2	UL94 V-2
Operating Temperature	Not specified	-40°C ~ 105°C	-25°C ~ 85°C
Current Rating (Amps)	Not specified	9A	7A
Voltage Rating	Not specified	600VAC	250VAC
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active

Engineering Selection Recommendations

All three parts maintain active product status and ROHS3 compliance, ensuring continued availability and regulatory alignment. The Molex 0039293126 and TE Connectivity 1-1586037-2 are functionally equivalent with identical mechanical dimensions and contact post lengths. The Adam Tech DMF-12-S provides an alternative with a 0.004" (0.10mm) shorter contact post length, which remains within acceptable tolerance for standard through-hole solder applications but should be evaluated for specific PCB stack-up requirements.

Selection between these parts should be based on supply chain availability, lead time requirements, and application-specific operating conditions. The TE Connectivity part offers the widest operating temperature range (-40°C to 105°C) and highest voltage rating (600VAC), making it suitable for industrial and telecommunications environments with extended thermal requirements. The Adam Tech part is suitable for general purpose and lighting applications within its specified operating range (-25°C to 85°C).

Frequently Asked Questions (FAQ)

Q: Are these parts physically interchangeable?

A: Yes. All three parts share identical mating pitch (0.165"), row spacing (0.165"), number of positions (12), shrouding configuration (4-wall), and insulation height (0.504"). The Adam Tech DMF-12-S has a contact post length of 0.134" compared to 0.138" for the other two parts, a 0.004" difference that does not affect standard through-hole solder joint formation.

Q: What is the difference between the substitute parts?

A: The primary differences are manufacturer series designation, contact material specification (Brass vs. Brass Alloy), contact finish thickness, operating temperature range, and current/voltage ratings. Mechanically and electrically, all parts function identically in board-to-cable applications with 0.165" pitch requirements.

Q: Which substitute part should I select for industrial applications?

A: The TE Connectivity 1-1586037-2 is recommended for industrial applications due to its extended operating temperature range (-40°C to 105°C) and higher voltage rating (600VAC). This part is rated for general purpose, industrial, and lighting applications.

Q: Are all parts RoHS compliant?

A: Yes. All three parts are ROHS3 compliant and carry Moisture Sensitivity Level 1 (Unlimited), indicating no special handling requirements during storage or assembly.

Q: What packaging options are available?

A: The Molex 0039293126 and TE Connectivity 1-1586037-2 are supplied in Bulk packaging. The Adam Tech DMF-12-S is supplied in Tray packaging. Packaging selection may affect procurement and handling procedures.

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