Equivalent & Substitute Parts for 2A03-AP

Part Overview

The 2A03-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 200 V DC reverse voltage and 2 A average rectified current in a DO-15 through-hole package. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support, maintenance, and production continuity. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives within acceptable parameter tolerances for the application category.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1	V @ 2 A
Speed	Standard Recovery >500ns, > 200mA (Io)	-
Current - Reverse Leakage @ Vr	5	µA @ 200 V
Mounting Type	Through Hole	-
Package / Case	DO-204AC, DO-15, Axial	-
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the 2A03-AP is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain a DC reverse voltage rating of 200 V or greater to ensure safe operation within the original circuit design envelope.

Current Rating: The average rectified current capacity must be sufficient for the application. Parts rated at 2 A provide direct equivalence; parts rated below 2 A (such as 1.5 A) function as substitutes only when circuit current demands do not exceed the lower rating.

Recovery Characteristics: The 2A03-AP operates with standard recovery characteristics (>500 ns). Substitute parts with faster recovery times (≤500 ns) are electrically compatible and may provide improved performance characteristics.

Package Compatibility: All substitute parts must use through-hole mounting in DO-15 or DO-204AC packaging to ensure mechanical and electrical compatibility with existing PCB designs.

Compliance Standards: RoHS3 compliance is maintained across all substitute options. Automotive-grade variants with AEC-Q101 qualification are available for applications requiring enhanced reliability standards.

Parameter Comparison

Parameter	2A03-AP (Main)	PR1503-T	2A03G A0G	2A03GHA0G
Manufacturer	Micro Commercial Co	Diodes Incorporated	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation
Product Status	Obsolete	Active	Active	Active
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	200 V	200 V
Current - Average Rectified (Io)	2 A	1.5 A	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	1 V @ 2 A	1.2 V @ 1.5 A	1 V @ 2 A	1 V @ 2 A
Speed	Standard Recovery >500ns	Fast Recovery ≤500ns	Standard Recovery >500ns	Standard Recovery >500ns
Current - Reverse Leakage @ Vr	5 µA @ 200 V	5 µA @ 200 V	5 µA @ 200 V	5 µA @ 200 V
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial
Operating Temperature - Junction	-55 to 150°C	-65 to 150°C	-55 to 150°C	-55 to 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Automotive Grade	-	-	-	AEC-Q101 Qualified

Engineering Selection Recommendations

Direct Parametric Equivalents: The 2A03G A0G and 2A03GHA0G, both manufactured by Taiwan Semiconductor Corporation, provide complete parametric equivalence to the 2A03-AP. These parts maintain identical voltage ratings, current capacity, forward voltage characteristics, and recovery speed. Both are in active production status, ensuring long-term availability. The 2A03GHA0G variant includes AEC-Q101 automotive qualification, suitable for applications requiring automotive-grade reliability standards.

Functional Substitute with Current Derating: The PR1503-T from Diodes Incorporated operates at 1.5 A average rectified current, representing a 25% reduction from the 2 A specification of the main part. This substitute is applicable only when circuit design permits operation at the lower current rating. The PR1503-T features fast recovery characteristics (≤500 ns), which may provide performance benefits in switching applications. This part is in active production status.

Compliance and Availability: All substitute options maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). The 2A03G A0G and 2A03GHA0G offer superior inventory availability (794 and 1116 pieces respectively) compared to the PR1503-T (711 pieces). Selection should prioritize active production parts to ensure sustained supply chain support.

Frequently Asked Questions (FAQ)

Q: Can the PR1503-T directly replace the 2A03-AP in all applications?

A: The PR1503-T is a functional substitute only when circuit current requirements do not exceed 1.5 A. The reduced current rating (1.5 A versus 2 A) limits its application scope. For circuits requiring the full 2 A capacity, the 2A03G A0G or 2A03GHA0G are required.

Q: What is the difference between the 2A03G A0G and 2A03GHA0G?

A: Both parts are parametrically identical with respect to voltage, current, and thermal characteristics. The 2A03GHA0G includes AEC-Q101 automotive qualification and is designated as automotive-grade. Selection between these parts depends on whether automotive reliability standards are required for the application.

Q: Are all substitute parts compatible with existing PCB layouts designed for the 2A03-AP?

A: Yes. All substitute parts use through-hole mounting in DO-15 or DO-204AC packaging, which are mechanically and electrically compatible with PCB designs for the 2A03-AP. No layout modifications are required.

Q: Does the faster recovery speed of the PR1503-T provide any advantage?

A: The PR1503-T features fast recovery characteristics (≤500 ns) compared to the standard recovery (>500 ns) of the 2A03-AP. Faster recovery may reduce switching losses in high-frequency applications, but this benefit is offset by the reduced current rating of 1.5 A.

Q: What is the operating temperature range difference between the 2A03-AP and PR1503-T?

A: The PR1503-T operates from -65°C to 150°C, providing a 10°C lower minimum junction temperature compared to the 2A03-AP (-55°C to 150°C). This extended low-temperature range may be beneficial for applications in extreme cold environments.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The 2A03G A0G, 2A03GHA0G, and PR1503-T are all ROHS3 compliant, matching the compliance status of the 2A03-AP.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message