3A100 A0G Equivalent & Substitute Parts

Part Overview

The 3A100 A0G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 1000 V DC reverse voltage and 3 A average rectified current in a DO-204AC (DO-15) axial through-hole package. This component is classified as Active product status with standard recovery characteristics and operates across a junction temperature range of -55°C to 150°C. The device is RoHS3 compliant and REACH unaffected, suitable for power supply and rectification applications requiring high voltage and moderate current handling.

Equivalent and substitute parts are identified to address component availability, supply chain continuity, and design flexibility while maintaining electrical and mechanical compatibility within specified parameter tolerances.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	1000	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 3 A	V
Speed	Standard Recovery >500ns, > 200mA (Io)	-
Current - Reverse Leakage @ Vr	5	µA @ 1000 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

Substitute parts for the 3A100 A0G are grouped based on the following critical parameters that determine functional equivalence:

Primary Compatibility Criteria:

Voltage - DC Reverse (Vr) (Max): 1000 V (exact match required)
Mounting Type: Through Hole (exact match required)
Package / Case: DO-204AC, DO-15, Axial (exact match required)
Current - Reverse Leakage @ Vr: 5 µA @ 1000 V (exact match required)
RoHS Status: ROHS3 Compliant (exact match required)

Secondary Selection Parameters:

Current - Average Rectified (Io): Substitutes rated at 1.5 A or 2 A are acceptable for applications where the 3 A main part is not fully utilized
Voltage - Forward (Vf) (Max) @ If: Variations within 0.4 V range are acceptable depending on application thermal requirements
Speed: Both standard recovery (>500ns) and fast recovery (≤500ns) types are listed; selection depends on application switching frequency requirements
Operating Temperature - Junction: Extended ranges (-65°C to 175°C) provide broader operational envelope than the main part

Substitutes are organized by current rating and recovery speed characteristics to facilitate selection based on specific application requirements.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	Speed	Reverse Leakage @ Vr [µA]	Package	Temp Range [°C]	RoHS Status
3A100 A0G	Taiwan Semiconductor Corporation	1000	3	1.1 @ 3 A	Standard >500ns	5 @ 1000 V	DO-204AC (DO-15)	-55 to 150	ROHS3
1N5399GP-E3/54	Vishay General Semiconductor - Diodes Division	1000	1.5	1.4 @ 1.5 A	Standard >500ns	5 @ 1000 V	DO-204AC (DO-15)	-65 to 175	ROHS3
1N5399GP-E3/73	Vishay General Semiconductor - Diodes Division	1000	1.5	1.4 @ 1.5 A	Standard >500ns	5 @ 1000 V	DO-204AC (DO-15)	-65 to 175	ROHS3
BYV26EGP-E3/54	Vishay General Semiconductor - Diodes Division	1000	1	2.5 @ 1 A	Fast ≤500ns	5 @ 1000 V	DO-204AC (DO-15)	-65 to 175	ROHS3
BYV26EGP-E3/73	Vishay General Semiconductor - Diodes Division	1000	1	2.5 @ 1 A	Fast ≤500ns	5 @ 1000 V	DO-204AC (DO-15)	-65 to 175	ROHS3
GP15M-E3/54	Vishay General Semiconductor - Diodes Division	1000	1.5	1.1 @ 1.5 A	Standard >500ns	5 @ 1000 V	DO-204AC (DO-15)	-65 to 175	ROHS3
GP15M-E3/73	Vishay General Semiconductor - Diodes Division	1000	1.5	1.1 @ 1.5 A	Standard >500ns	5 @ 1000 V	DO-204AC (DO-15)	-65 to 175	ROHS3
HER208G-TP	Micro Commercial Co	1000	2	1.7 @ 2 A	Fast ≤500ns	5 @ 1000 V	DO-204AC (DO-15)	-55 to 150	ROHS3
RGP15M-E3/54	Vishay General Semiconductor - Diodes Division	1000	1.5	1.3 @ 1.5 A	Fast ≤500ns	5 @ 1000 V	DO-204AC (DO-15)	-65 to 175	ROHS3

Engineering Selection Recommendations

Direct Substitution (Equivalent Current Rating): No substitute parts are rated for 3 A average rectified current. The 3A100 A0G is the only component in this comparison set with this current specification.

Reduced Current Rating Substitutes (1.5 A Category): The 1N5399GP-E3/54, 1N5399GP-E3/73, GP15M-E3/54, GP15M-E3/73, and RGP15M-E3/54 are suitable for applications where the circuit current demand does not exceed 1.5 A. These parts maintain the 1000 V reverse voltage rating and DO-204AC package compatibility. The GP15M series and RGP15M-E3/54 offer forward voltage characteristics (1.1 V to 1.3 V @ 1.5 A) closer to the main part than the 1N5399 series (1.4 V @ 1.5 A). All listed 1.5 A substitutes provide extended operating temperature range (-65°C to 175°C) compared to the main part.

Reduced Current Rating Substitutes (1 A Category): The BYV26EGP-E3/54 and BYV26EGP-E3/73 are rated for 1 A and feature fast recovery characteristics (75 ns reverse recovery time). These parts are suitable only for applications with maximum current requirements of 1 A. Forward voltage is elevated at 2.5 V @ 1 A, which may impact thermal design.

Intermediate Current Rating Substitute (2 A Category): The HER208G-TP is rated for 2 A average rectified current and features fast recovery characteristics (75 ns reverse recovery time). This part maintains the 1000 V reverse voltage rating and DO-204AC package compatibility. Operating temperature range matches the main part (-55°C to 150°C).

Compliance and Certification: All listed substitute parts are RoHS3 compliant and REACH unaffected, matching the regulatory status of the main part. All components are classified as Active product status.

Frequently Asked Questions (FAQ)

Q: Can I use a 1.5 A rated diode in place of the 3A100 A0G?

A: A 1.5 A rated substitute is suitable only if the actual circuit current demand does not exceed 1.5 A. The 3A100 A0G is rated for 3 A average rectified current; substitutes with lower current ratings will operate within their specifications only at reduced current levels. Verify circuit current requirements before substitution.

Q: What is the difference between standard recovery and fast recovery diodes in these substitutes?

A: Standard recovery diodes (>500ns reverse recovery time) are suitable for low-frequency rectification applications. Fast recovery diodes (≤500ns reverse recovery time) are designed for higher-frequency switching applications and power factor correction circuits. The BYV26EGP and HER208G-TP series feature fast recovery characteristics with 75 ns reverse recovery time, while the 1N5399GP, GP15M, and RGP15M series vary in recovery speed. Select based on application switching frequency requirements.

Q: Are the different tape codes (E3/54 versus E3/73) electrically equivalent?

A: The tape code designations (E3/54 and E3/73) refer to packaging and reel specifications for automated assembly. Electrically and functionally, parts with identical base part numbers but different tape codes (such as 1N5399GP-E3/54 and 1N5399GP-E3/73, or GP15M-E3/54 and GP15M-E3/73) are equivalent. Selection between tape codes depends on assembly equipment compatibility and supply chain availability.

Q: What is the significance of the extended temperature range in some substitutes?

A: Several substitute parts from Vishay General Semiconductor (1N5399GP, GP15M, RGP15M series) operate across -65°C to 175°C, compared to the main part's -55°C to 150°C range. The extended range provides operational margin in extreme temperature environments but does not affect performance in standard operating conditions. Selection based on temperature range is necessary only for applications with specified extreme temperature requirements.

Q: Can I substitute the 3A100 A0G with the HER208G-TP (2 A rated)?

A: The HER208G-TP is suitable for applications where circuit current does not exceed 2 A. This part maintains the 1000 V reverse voltage rating, DO-204AC package compatibility, and matching operating temperature range (-55°C to 150°C). However, the HER208G-TP features fast recovery characteristics (75 ns), whereas the 3A100 A0G is standard recovery (>500ns). Verify application switching frequency requirements before substitution.

Q: Are all substitute parts available in the same DO-204AC package?

A: All listed substitute parts use the DO-204AC (DO-15) axial through-hole package, matching the main part's mechanical form factor. This ensures direct physical compatibility in PCB layouts and through-hole assembly processes. No package conversion is required for any listed substitute.

Q: What should I consider when selecting between multiple 1.5 A substitutes?

A: When selecting among 1.5 A rated substitutes (1N5399GP, GP15M, RGP15M series), consider forward voltage characteristics: GP15M and RGP15M series offer lower forward voltage (1.1 V to 1.3 V @ 1.5 A) compared to 1N5399GP (1.4 V @ 1.5 A), resulting in lower power dissipation. RGP15M-E3/54 features fast recovery (500 ns), while GP15M series are standard recovery (>500ns). Select based on thermal design requirements and application switching frequency.

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