Molex 0444721056 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0444721056 is a shrouded vertical header connector with 10 positions arranged in 2 rows, designed for through-hole board-to-cable/wire applications. This connector features a 0.165" (4.20mm) pitch, tin-plated copper alloy contacts, and polyamide insulation rated UL94 V-2. The part is classified as obsolete, making identification of active equivalent components essential for ongoing production and maintenance applications across automotive, industrial, medical, and telecommunications sectors.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	10
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
Contact Material	Copper Alloy
Contact Finish - Mating	Tin
Insulation Material	Polyamide (PA66), Nylon 6/6
Insulation Color	Natural
Material Flammability Rating	UL94 V-2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

The Molex 0444721054 qualifies as a direct substitute for the 0444721056 based on identical electrical and mechanical parameters. Substitution is valid when the following criteria are met:

Connector type, contact type, and gender remain unchanged (Header, Male Pin)
Position count and row configuration are identical (10 positions, 2 rows)
Mating pitch and row spacing match exactly (0.165" / 4.20mm)
Shrouding style, mounting method, and termination type are preserved (Shrouded - 4 Wall, Through Hole, Solder)
Fastening mechanism is identical (Locking Ramp)
Contact material, finish, and insulation material specifications are equivalent (Copper Alloy, Tin finish, PA66/Nylon 6/6)
Flammability and RoHS compliance ratings are maintained (UL94 V-2, ROHS3 Compliant)
Moisture sensitivity level remains unchanged (MSL 1)

The primary distinction between these parts is product status: the 0444721056 is obsolete, while the 0444721054 is active with higher inventory availability (1305 pcs vs. 669 pcs).

Parameter Comparison

Parameter	0444721056 (Main Part)	0444721054 (Substitute)
Manufacturer	Molex	Molex
Series	Mini-Fit HCS 44472	Mini-Fit HCS 44472
Product Status	Obsolete	Active
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Number of Positions	10	10
Number of Rows	2	2
Pitch - Mating	0.165" (4.20mm)	0.165" (4.20mm)
Row Spacing - Mating	0.165" (4.20mm)	0.165" (4.20mm)
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Fastening Type	Locking Ramp	Locking Ramp
Contact Length - Post	0.138" (4.60mm)	0.138" (4.60mm)
Insulation Height	0.504" (12.80mm)	0.504" (12.80mm)
Contact Shape	Square	Square
Contact Finish - Mating	Tin	Tin
Contact Finish Thickness - Mating	100.0µin (2.54µm)	100.0µin (2.54µm)
Contact Finish - Post	Tin	Tin
Contact Material	Copper Alloy	Copper Alloy
Insulation Material	Polyamide (PA66), Nylon 6/6	Polyamide (PA66), Nylon 6/6
Insulation Color	Natural	Natural
Material Flammability Rating	UL94 V-2	UL94 V-2
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040
Packaging	-	Tray
Inventory Status	669 Pcs New Original In Stock	1305 Pcs New Original In Stock

Engineering Selection Recommendations

The Molex 0444721054 is the direct active equivalent for the obsolete 0444721056. Both parts are manufactured within the same Mini-Fit HCS 44472 series and maintain identical electrical and mechanical specifications. Selection of the 0444721054 is supported by:

Active product status ensuring long-term availability and supply chain continuity
ROHS3 compliance and EAR99 export classification matching the original specification
Identical UL94 V-2 flammability rating and MSL 1 moisture sensitivity level
Higher inventory availability (1305 pcs) compared to the obsolete part
Tray packaging format suitable for automated assembly processes

No functional or performance differences exist between these parts. The 0444721054 is suitable for direct replacement in all applications where the 0444721056 was originally specified.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0444721054 be used as a direct replacement for the 0444721056?

A: Yes. Both parts are electrically and mechanically identical. The 0444721054 is the active equivalent with identical pitch (0.165" / 4.20mm), position count (10), row configuration (2 rows), shrouding (4 Wall), contact material (Copper Alloy with Tin finish), and insulation specifications (PA66/Nylon 6/6, UL94 V-2).

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

A: The 0444721056 is classified as obsolete, while the 0444721054 is active. The 0444721054 also features tray packaging and higher inventory availability. All technical specifications remain identical.

Q: Are there any compatibility concerns when substituting the 0444721054 for the 0444721056?

A: No compatibility concerns exist. Both parts share identical mating pitch, row spacing, contact geometry, and fastening mechanisms (Locking Ramp). PCB footprints and mating connector requirements are unchanged.

Q: Does the packaging difference (tray vs. unspecified) affect functionality?

A: Packaging format does not affect connector functionality. The tray packaging of the 0444721054 is suitable for automated assembly and provides improved handling and storage compared to bulk packaging.

Q: Are both parts RoHS compliant?

A: Yes. Both the 0444721056 and 0444721054 are ROHS3 compliant with identical material flammability ratings (UL94 V-2) and moisture sensitivity levels (MSL 1).

Q: What applications are these connectors suitable for?

A: Both parts are specified for automotive, general purpose, industrial, medical, and telecommunications applications. The identical specifications ensure equivalent performance across all intended use cases.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message