Molex 0009523021 Equivalent & Substitute Parts

Part Overview

The Molex 0009523021 is a 2-position receptacle connector with 0.156" (3.96mm) pitch, designed for board edge mounting through hole applications with right angle orientation. This connector features tin-plated brass contacts rated for 4.5A at 600V and is suitable for automotive, general purpose, medical, and telecommunications applications.

The 0009523021 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this connector.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	2
Pitch - Mating	0.156" (3.96mm)
Mounting Type	Board Edge, Through Hole, Right Angle
Current Rating	4.5A
Voltage Rating	600V
Operating Temperature Range	-40°C ~ 80°C
Contact Finish	Tin
Termination	Solder

Substitute Part Grouping Explanation

Substitution eligibility for rectangular connectors in this category is determined by strict alignment of electrical and mechanical parameters. The following criteria establish valid substitution:

Critical Parameters for Substitution:

Connector type (Receptacle)
Contact type (Female Socket)
Number of positions (2)
Pitch - mating (0.156" / 3.96mm)
Mounting type (Board Edge, Through Hole, Right Angle)
Current rating (4.5A minimum)
Voltage rating (600V minimum)
Operating temperature range (-40°C ~ 80°C minimum)
Contact finish (Tin)
Termination method (Solder)

The Molex 0009482021 meets all critical substitution parameters. Both connectors share identical electrical ratings, mechanical mounting specifications, and contact configurations. Differences in product status, insulation material, and flammability rating do not affect functional interchangeability in applications designed for the 0009523021.

Parameter Comparison

Parameter	0009523021 (Main Part)	0009482021 (Substitute)
Manufacturer	Molex	Molex
Connector Type	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket
Number of Positions	2	2
Pitch - Mating	0.156" (3.96mm)	0.156" (3.96mm)
Number of Rows	1	1
Mounting Type	Board Edge, Through Hole, Right Angle	Board Edge, Through Hole, Right Angle
Termination	Solder	Solder
Fastening Type	Locking Ramp	Locking Ramp
Contact Finish - Mating	Tin	Tin
Contact Finish Thickness - Mating	100.0µin (2.54µm)	100.0µin (2.54µm)
Insulation Height	0.308" (7.82mm)	0.308" (7.82mm)
Contact Length - Post	0.145" (3.68mm)	0.145" (3.68mm)
Operating Temperature	-40°C ~ 80°C	-40°C ~ 80°C
Current Rating (Amps)	4.5A	4.5A
Voltage Rating	600V	600V
Contact Material	Brass	Brass
Contact Finish - Post	Tin	Tin
Contact Finish Thickness - Post	100.0µin (2.54µm)	100.0µin (2.54µm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040
Product Status	Obsolete	Active
Packaging	-	Tray
Insulation Color	White	Natural
Insulation Material	Polyamide (PA), Nylon	Polyester
Material Flammability Rating	UL94 V-2	UL94 V-0

Engineering Selection Recommendations

The Molex 0009482021 is the direct substitute for the obsolete 0009523021. Both connectors are manufactured by Molex and maintain identical electrical and mechanical specifications across all critical parameters.

The 0009482021 carries active product status, ensuring ongoing availability and supply chain support. Both parts maintain ROHS3 compliance and identical regulatory classifications (ECCN: EAR99, HTSUS: 8536.69.4040).

The 0009482021 features an improved material flammability rating (UL94 V-0 versus UL94 V-2), providing enhanced safety characteristics. The insulation material differs (Polyester versus Polyamide/Nylon), and the connector is supplied in tray packaging rather than bulk. These differences do not affect functional interchangeability in applications designed for the 0009523021.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0009482021 directly replace the 0009523021 in existing designs?

A: Yes. Both connectors share identical pitch (0.156"), position count (2), mounting configuration (board edge, through hole, right angle), electrical ratings (4.5A, 600V), and operating temperature range (-40°C ~ 80°C). The connectors are mechanically and electrically interchangeable.

Q: What is the difference in insulation material between these connectors?

A: The 0009523021 uses Polyamide (PA) / Nylon insulation, while the 0009482021 uses Polyester insulation. Both materials meet the specified operating temperature range and electrical requirements. The material change does not affect connector function or compatibility.

Q: Why does the 0009482021 have a higher flammability rating (UL94 V-0)?

A: The UL94 V-0 rating on the 0009482021 indicates superior flame resistance compared to the UL94 V-2 rating of the 0009523021. This represents an improvement in material safety characteristics and does not affect electrical or mechanical performance.

Q: Is the 0009482021 available in different packaging options?

A: The 0009482021 is supplied in tray packaging. The original 0009523021 packaging specification was not provided. Confirm packaging requirements with your procurement process.

Q: Are both connectors RoHS compliant?

A: Yes. Both the 0009523021 and 0009482021 are ROHS3 compliant and carry identical regulatory classifications.

Q: What is the contact finish specification for both connectors?

A: Both connectors feature tin-plated brass contacts with 100.0µin (2.54µm) finish thickness on both mating and post surfaces, ensuring consistent electrical performance and solderability.

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