2A04G A0G Equivalent & Substitute Parts

Part Overview

The 2A04G A0G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 400 V DC reverse voltage and 2 A average rectified current in a DO-204AC (DO-15) through-hole axial package. This component is classified as Active product status with RoHS3 compliance and standard recovery characteristics. Equivalent and substitute parts are identified based on matching or exceeding the electrical and mechanical specifications within the same package family, enabling circuit designers to source alternative components when primary inventory is unavailable or when design requirements permit operation within the specified parameter ranges of substitute devices.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1 V @ 2 A	V @ A
Current - Reverse Leakage @ Vr	5	µA @ 400 V
Speed	Standard Recovery >500ns, > 200mA (Io)	-
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

Substitute parts for the 2A04G A0G are grouped based on the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 400 V minimum
Package / Case: DO-204AC, DO-15, Axial (physical and electrical compatibility)
Mounting Type: Through Hole
RoHS Status: ROHS3 Compliant

Secondary Compatibility Parameters:

Current - Average Rectified (Io): 1 A to 2 A range
Voltage - Forward (Vf) (Max) @ If: 1 V to 1.25 V
Current - Reverse Leakage @ Vr: 5 µA to 500 nA @ 400 V
Operating Temperature - Junction: -55°C to 175°C range
Speed: Standard Recovery (>500ns) or Fast Recovery (≤500ns)

Substitute parts are classified into two categories:

Category A - Direct Equivalents (2 A Current Rating): Parts with 2 A average rectified current matching the main part specification.

Category B - Reduced Current Equivalents (1 A to 1.5 A Current Rating): Parts with lower current ratings suitable for applications where the full 2 A capacity is not required, provided circuit design accommodates the reduced current specification.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V @ A]	Speed	Reverse Leakage @ Vr [µA @ 400V]	Package	Temp Range [°C]	RoHS Status
2A04G A0G	Taiwan Semiconductor Corporation	400	2	1 @ 2	Standard Recovery >500ns	5	DO-204AC (DO-15)	-55 to 150	ROHS3 Compliant
1N5060GP-E3/54	Vishay General Semiconductor - Diodes Division	400	1	1.2 @ 1	Standard Recovery >500ns	5	DO-204AC (DO-15)	-65 to 175	ROHS3 Compliant
1N5617GP-E3/54	Vishay General Semiconductor - Diodes Division	400	1	1.2 @ 1	Fast Recovery ≤500ns	0.5	DO-204AC (DO-15)	-65 to 175	ROHS3 Compliant
EGP20G	Fairchild Semiconductor	400	2	1.25 @ 2	Fast Recovery ≤500ns	5	DO-204AC (DO-15)	-65 to 150	Not specified
EGP20G-E3/54	Vishay General Semiconductor - Diodes Division	400	2	1.25 @ 2	Fast Recovery ≤500ns	5	DO-204AC (DO-15)	-65 to 150	ROHS3 Compliant
GP15G-E3/54	Vishay General Semiconductor - Diodes Division	400	1.5	1.1 @ 1.5	Standard Recovery >500ns	5	DO-204AC (DO-15)	-65 to 175	ROHS3 Compliant
RGP15G-E3/54	Vishay General Semiconductor - Diodes Division	400	1.5	1.3 @ 1.5	Fast Recovery ≤500ns	5	DO-204AC (DO-15)	-65 to 175	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent Selection (2 A Current Rating):

The EGP20G-E3/54 (Vishay General Semiconductor - Diodes Division) is the preferred direct equivalent for the 2A04G A0G. Both parts maintain 400 V reverse voltage rating and 2 A average rectified current specification. The EGP20G-E3/54 provides Fast Recovery characteristics (≤500ns) compared to the Standard Recovery (>500ns) of the main part, resulting in improved switching performance. Operating temperature range extends to 175°C versus 150°C on the main part. RoHS3 compliance is confirmed. This part is suitable for direct substitution in applications where the enhanced recovery speed does not introduce circuit instability.

The EGP20G (Fairchild Semiconductor) provides identical electrical specifications to the EGP20G-E3/54 but lacks documented RoHS3 compliance status. Selection of this part requires verification of compliance requirements for the end application.

Reduced Current Equivalent Selection (1.5 A Current Rating):

The GP15G-E3/54 (Vishay General Semiconductor - Diodes Division) maintains Standard Recovery characteristics matching the main part and provides 1.5 A average rectified current. This part is suitable for applications where circuit design accommodates the 25% reduction in current capacity. Operating temperature range extends to 175°C. RoHS3 compliance is confirmed.

The RGP15G-E3/54 (Vishay General Semiconductor - Diodes Division) provides Fast Recovery characteristics with 1.5 A current rating and extended temperature range to 175°C. RoHS3 compliance is confirmed. Selection of this part is appropriate when improved switching performance is required within the 1.5 A current specification.

Reduced Current Equivalent Selection (1 A Current Rating):

The 1N5060GP-E3/54 (Vishay General Semiconductor - Diodes Division) maintains Standard Recovery characteristics and 400 V reverse voltage rating with 1 A average rectified current. This part is suitable for applications where circuit design accommodates the 50% reduction in current capacity. Operating temperature range extends to 175°C. RoHS3 compliance is confirmed.

The 1N5617GP-E3/54 (Vishay General Semiconductor - Diodes Division) provides Fast Recovery characteristics (≤500ns) with 1 A current rating and significantly reduced reverse leakage current (0.5 µA versus 5 µA). Operating temperature range extends to 175°C. RoHS3 compliance is confirmed. Selection of this part is appropriate when improved switching performance and lower leakage current are required within the 1 A current specification.

Compliance and Inventory Considerations:

All recommended substitute parts maintain RoHS3 compliance and REACH Unaffected status consistent with the main part. All parts are classified as Active product status. Inventory availability varies across substitute options, with EGP20G-E3/54 providing 1,300 units, 1N5617GP-E3/54 providing 8,899 units, and GP15G-E3/54 providing 10,959 units in stock.

Frequently Asked Questions (FAQ)

Q: Can the 1N5060GP-E3/54 or 1N5617GP-E3/54 be used as direct replacements for the 2A04G A0G?

A: These parts are not direct replacements. Both are rated for 1 A average rectified current compared to the 2 A specification of the 2A04G A0G. They are suitable only for applications where circuit design accommodates the 50% reduction in current capacity. The 400 V reverse voltage rating and DO-204AC package are compatible.

Q: What is the difference between Standard Recovery and Fast Recovery diodes?

A: Standard Recovery diodes exhibit reverse recovery time greater than 500 ns, while Fast Recovery diodes exhibit reverse recovery time of 500 ns or less. Fast Recovery diodes switch more rapidly when transitioning from forward to reverse bias, reducing switching losses in high-frequency applications. The 2A04G A0G uses Standard Recovery characteristics. Substitution with Fast Recovery parts (EGP20G-E3/54, 1N5617GP-E3/54, RGP15G-E3/54) is permitted when circuit design accommodates the faster switching behavior.

Q: Are all substitute parts available in the same packaging as the 2A04G A0G?

A: All substitute parts listed are packaged in DO-204AC (DO-15) axial through-hole configuration, matching the mechanical and electrical interface of the 2A04G A0G. Physical dimensions and lead spacing are compatible for direct board-level substitution.

Q: What is the significance of reverse leakage current differences between parts?

A: Reverse leakage current represents the small current flowing through the diode when reverse bias is applied. The 2A04G A0G specifies 5 µA @ 400 V. The 1N5617GP-E3/54 provides significantly lower reverse leakage at 0.5 µA @ 400 V, which reduces power dissipation in standby conditions and improves circuit efficiency. Other substitute parts maintain the 5 µA specification.

Q: Can the GP15G-E3/54 or RGP15G-E3/54 be used in applications requiring the full 2 A current rating?

A: No. These parts are rated for 1.5 A average rectified current. Use in applications requiring 2 A operation will result in component overstress and potential failure. These parts are suitable only for applications where circuit design accommodates the 25% reduction in current capacity.

Q: What is the operating temperature range difference between the 2A04G A0G and substitute parts?

A: The 2A04G A0G operates from -55°C to 150°C junction temperature. Most substitute parts extend the upper limit to 175°C, providing 25°C additional thermal margin. The lower temperature limit extends to -65°C on substitute parts, providing 10°C additional margin. These extended ranges do not affect substitution compatibility but provide additional design flexibility in temperature-constrained applications.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts except EGP20G are documented as RoHS3 compliant. The EGP20G (Fairchild Semiconductor) does not specify RoHS3 compliance status. Verification of compliance requirements for the end application is necessary before selecting the EGP20G.

Q: What forward voltage differences exist between the 2A04G A0G and substitute parts?

A: The 2A04G A0G specifies 1 V maximum forward voltage at 2 A. Substitute parts with 2 A rating (EGP20G, EGP20G-E3/54) specify 1.25 V maximum at 2 A, representing a 0.25 V increase. The 1.5 A rated parts specify 1.1 V to 1.3 V at 1.5 A. The 1 A rated parts specify 1.2 V at 1 A. Higher forward voltage results in increased power dissipation during conduction. Circuit thermal design must accommodate this difference.

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