Equivalent & Substitute Parts for 2A03-T

Part Overview

The 2A03-T is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 200 V DC reverse voltage and 2 A average rectified current in a DO-15 through-hole package. This part is classified as obsolete, which necessitates identification of active equivalent and substitute components for new designs and ongoing production support. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives with differing package formats or enhanced performance characteristics within the same voltage and current ratings.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 2 A	V
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	-65 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the 2A03-T is determined by the following critical parameters: voltage rating (200 V DC reverse), current rating (2 A average rectified), mounting type (through-hole), and package compatibility (DO-15 or equivalent axial formats). All substitute parts listed maintain these core electrical specifications and through-hole mounting requirement.

Substitute parts are grouped into three categories based on package format and recovery speed characteristics:

Category 1: DO-204AC (DO-15) Package, Standard to Fast Recovery Parts maintaining the original DO-15 package footprint with standard or fast recovery characteristics. These provide direct mechanical and electrical compatibility.

Category 2: Axial Package (DO-204AL, DO-41), Fast Recovery Parts utilizing alternative axial package formats with enhanced fast recovery performance. These require PCB layout modification but offer improved switching characteristics.

Category 3: SOD-57 Package, Avalanche Technology, Fast Recovery Parts utilizing SOD-57 package with avalanche diode technology and superior fast recovery performance. These require significant PCB layout redesign but provide enhanced reverse voltage protection.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Speed	Package	Product Status	Temp Range
2A03-T	Diodes Incorporated	200 V	2 A	1.1 V @ 2 A	Standard >500ns	DO-15	Obsolete	-65 to 150°C
GPP20D-E3/54	Vishay General Semiconductor	200 V	2 A	1.1 V @ 2 A	Standard >500ns	DO-204AC (DO-15)	Active	-55 to 150°C
EGP20D-E3/54	Vishay General Semiconductor	200 V	2 A	950 mV @ 2 A	Fast ≤500ns	DO-204AC (DO-15)	Active	-65 to 150°C
EGP20D-E3/73	Vishay General Semiconductor	200 V	2 A	950 mV @ 2 A	Fast ≤500ns	DO-204AC (DO-15)	Active	-65 to 150°C
EGP20D	onsemi	200 V	2 A	950 mV @ 2 A	Fast ≤500ns	DO-15	Not For New Designs	-65 to 150°C
UG2D-E3/54	Vishay General Semiconductor	200 V	2 A	950 mV @ 2 A	Fast ≤500ns	DO-204AC (DO-15)	Active	-55 to 150°C
UG2D-E3/73	Vishay General Semiconductor	200 V	2 A	950 mV @ 2 A	Fast ≤500ns	DO-204AC (DO-15)	Active	-55 to 150°C
MUR220RLG	onsemi	200 V	2 A	950 mV @ 2 A	Fast ≤500ns	DO-204AL (DO-41)	Active	-65 to 175°C
MUR220G	onsemi	200 V	2 A	950 mV @ 2 A	Fast ≤500ns	DO-204AL (DO-41)	Active	-65 to 175°C
BYV27-200-TAP	Vishay General Semiconductor	200 V	2 A	1.07 V @ 3 A	Fast ≤500ns	SOD-57	Active	-55 to 175°C
BYV27-200-TR	Vishay General Semiconductor	200 V	2 A	1.07 V @ 3 A	Fast ≤500ns	SOD-57	Active	-55 to 175°C

Engineering Selection Recommendations

For Direct Replacement (Same Package, Minimal PCB Modification)

GPP20D-E3/54 and UG2D-E3/54 are recommended as primary direct replacements for the 2A03-T. Both parts maintain the DO-204AC (DO-15) package format, are classified as Active products, and comply with ROHS3 and REACH requirements. GPP20D-E3/54 provides the closest electrical match with standard recovery characteristics identical to the original part. UG2D-E3/54 offers enhanced fast recovery performance with reduced reverse recovery time (25 ns versus >500 ns), providing improved switching efficiency without package modification.

For Enhanced Performance (Same Package, Improved Characteristics)

EGP20D-E3/54 and EGP20D-E3/73 are Active products offering fast recovery characteristics (≤500 ns) with reduced forward voltage (950 mV @ 2 A versus 1.1 V @ 2 A), resulting in lower power dissipation. Both maintain DO-204AC (DO-15) package compatibility and full temperature range operation (-65 to 150°C). These parts are designated as SUPERECTIFIER® series and provide superior switching performance for applications requiring reduced switching losses.

For Alternative Package Formats (Axial Configuration)

MUR220RLG and MUR220G are Active products offering fast recovery performance in DO-204AL (DO-41) axial package format. These parts provide extended operating temperature range (-65 to 175°C) and are designated as SWITCHMODE™ series. Selection of these parts requires PCB layout modification to accommodate the alternative axial package but offers improved thermal performance and switching characteristics.

For Advanced Applications (Avalanche Technology)

BYV27-200-TAP and BYV27-200-TR are Active products utilizing avalanche diode technology in SOD-57 package format. These parts provide fast recovery performance (≤500 ns, 25 ns reverse recovery time) and extended operating temperature range (-55 to 175°C). Selection of these parts requires significant PCB redesign but provides enhanced reverse voltage protection and superior switching performance for demanding applications.

Parts to Avoid for New Designs

EGP20D is classified as "Not For New Designs" and should not be selected for new product development, despite its electrical compatibility with the 2A03-T.

Frequently Asked Questions (FAQ)

Q: Can GPP20D-E3/54 be used as a direct replacement for 2A03-T without PCB modification?

A: Yes. GPP20D-E3/54 maintains identical DO-204AC (DO-15) package dimensions and pin configuration as the 2A03-T. No PCB layout modification is required. Electrical specifications are compatible within the 200 V / 2 A rating envelope.

Q: What is the difference between standard recovery and fast recovery diodes in this voltage/current class?

A: Standard recovery diodes exhibit reverse recovery times exceeding 500 ns, while fast recovery diodes exhibit reverse recovery times of 500 ns or less. Fast recovery diodes reduce switching losses and electromagnetic interference in high-frequency applications. The 2A03-T specifies standard recovery (>500 ns), while substitute parts such as EGP20D-E3/54, UG2D-E3/54, and MUR220RLG provide fast recovery (≤500 ns) performance.

Q: Are UG2D-E3/54 and UG2D-E3/73 interchangeable?

A: Yes. Both parts are identical in electrical specifications and package format. The suffix designations (-E3/54 and -E3/73) indicate different tape reel configurations for automated assembly. Selection between these parts depends on manufacturing equipment compatibility and tape reel specifications, not electrical performance.

Q: What is the significance of the operating temperature range difference between 2A03-T (-65 to 150°C) and MUR220RLG (-65 to 175°C)?

A: The extended upper temperature limit of MUR220RLG (175°C versus 150°C) permits operation in higher ambient temperature environments and provides additional thermal margin in applications with elevated junction temperatures. This characteristic is beneficial for high-power or thermally constrained applications but does not affect compatibility in applications operating within the original -65 to 150°C range.

Q: Why does BYV27-200-TAP have a lower reverse leakage current (1 µA @ 200 V) compared to the 2A03-T (5 µA @ 200 V)?

A: BYV27-200-TAP utilizes avalanche diode technology, which inherently produces lower reverse leakage current than standard rectifier diodes. This characteristic reduces standby power consumption and improves circuit efficiency in applications with continuous reverse bias conditions.

Q: Can MUR220RLG be used in applications designed for DO-15 package diodes?

A: No. MUR220RLG utilizes DO-204AL (DO-41) axial package format, which has different physical dimensions and pin spacing compared to DO-15. PCB layout modification is required to accommodate the alternative package. However, electrical specifications are fully compatible with the 2A03-T within the 200 V / 2 A rating envelope.

Q: Is the 2A03-T still available for purchase?

A: The 2A03-T is classified as obsolete. Inventory of 4980 pieces is available from current stock, but long-term availability is not guaranteed. Active substitute parts such as GPP20D-E3/54, EGP20D-E3/54, and UG2D-E3/54 are recommended for new designs and ongoing production requirements.

Q: What does ROHS3 Compliant status indicate?

A: ROHS3 Compliant indicates conformance to Restriction of Hazardous Substances Directive 2011/65/EU as amended by Directive (EU) 2015/863. All substitute parts listed maintain ROHS3 compliance, ensuring compatibility with environmental and regulatory requirements for electronic equipment manufacturing and distribution.

Q: Are all substitute parts REACH Unaffected?

A: No. The 2A03-T is classified as REACH Affected, while most substitute parts are classified as REACH Unaffected. REACH Unaffected status indicates the part does not contain substances of very high concern (SVHC) listed under the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) regulation. This classification provides regulatory advantage for new product designs and long-term supply chain stability.

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