2A02G A0G Equivalent & Substitute Parts

Part Overview

The 2A02G A0G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 100 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 standard recovery characteristics and operates across a junction temperature range of -55°C to 150°C. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical packaging, and compliance certifications to enable direct component selection in applications requiring 100 V, 2 A rectification capability.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 2 A	V
Current - Reverse Leakage @ Vr	5	µA @ 100 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 2A02G A0G are grouped into two categories based on electrical and mechanical compatibility:

Category 1: Direct Electrical Equivalents (100 V, 2 A Rating)

Parts in this category maintain the primary electrical specifications of 100 V reverse voltage and 2 A average rectified current. These parts are mechanically and electrically interchangeable with the main part in applications where the specified current rating is required. Differences in recovery speed (Standard vs. Fast Recovery) and forward voltage characteristics are noted but do not prevent substitution in standard rectification circuits.

Category 2: Reduced Current Rating (100 V, 1.5 A Rating)

Parts in this category are rated for 100 V reverse voltage but with a reduced average rectified current of 1.5 A. These parts are suitable for substitution only in applications where the circuit current demand does not exceed 1.5 A. The 100 V voltage rating remains compatible.

Key Parameters Determining Substitution:

Voltage - DC Reverse (Vr) (Max): 100 V (required match)
Mounting Type: Through Hole (required match)
Package / Case: DO-204AC, DO-15, Axial (required match)
Current - Average Rectified (Io): 2 A (Category 1) or 1.5 A (Category 2)
RoHS Status: ROHS3 Compliant (all parts)
Operating Temperature Range: -55°C to 150°C minimum (all parts meet or exceed)

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	Speed	Reverse Leakage @ Vr [µA]	Package	Temp Range [°C]
2A02G A0G	Taiwan Semiconductor Corporation	100	2	1.1 @ 2 A	Standard Recovery >500ns	5 @ 100 V	DO-204AC (DO-15)	-55 to 150
SBYV27-100-E3/54	Vishay General Semiconductor - Diodes Division	100	2	1.07 @ 3 A	Fast Recovery ≤500ns	5 @ 100 V	DO-204AC (DO-15)	-55 to 150
EGP20B	Fairchild Semiconductor	100	2	950 mV @ 2 A	Fast Recovery ≤500ns	5 @ 100 V	DO-204AC, DO-15	-65 to 150
EGP20B-E3/54	Vishay General Semiconductor - Diodes Division	100	2	950 mV @ 2 A	Fast Recovery ≤500ns	5 @ 100 V	DO-204AC (DO-15)	-65 to 150
EGP20B-E3/73	Vishay General Semiconductor - Diodes Division	100	2	950 mV @ 2 A	Fast Recovery ≤500ns	5 @ 100 V	DO-204AC (DO-15)	-65 to 150
GP15B-E3/54	Vishay General Semiconductor - Diodes Division	100	1.5	1.1 @ 1.5 A	Standard Recovery >500ns	5 @ 100 V	DO-204AC (DO-15)	-65 to 175
RGP15B-E3/54	Vishay General Semiconductor - Diodes Division	100	1.5	1.3 @ 1.5 A	Fast Recovery ≤500ns	5 @ 100 V	DO-204AC (DO-15)	-65 to 175
UG2B-E3/54	Vishay General Semiconductor - Diodes Division	100	2	950 mV @ 2 A	Fast Recovery ≤500ns	5 @ 100 V	DO-204AC (DO-15)	-55 to 150

Engineering Selection Recommendations

Direct Substitutes (100 V, 2 A Rating):

SBYV27-100-E3/54, EGP20B, EGP20B-E3/54, EGP20B-E3/73, and UG2B-E3/54 are electrically and mechanically equivalent to the 2A02G A0G. All substitute parts maintain the 100 V reverse voltage rating, 2 A average rectified current, DO-204AC (DO-15) through-hole axial package, and ROHS3 compliance. These parts are suitable for direct replacement in applications requiring the full 2 A current capacity.

SBYV27-100-E3/54 and UG2B-E3/54 maintain the same operating temperature range (-55°C to 150°C) as the main part. EGP20B, EGP20B-E3/54, and EGP20B-E3/73 extend the lower operating temperature limit to -65°C, providing enhanced performance in low-temperature environments.

Reduced Current Substitutes (100 V, 1.5 A Rating):

GP15B-E3/54 and RGP15B-E3/54 are suitable for substitution only in applications where the circuit current demand does not exceed 1.5 A. Both parts maintain the 100 V reverse voltage rating and DO-204AC (DO-15) package. These parts extend the upper operating temperature limit to 175°C compared to the main part's 150°C maximum.

Compliance and Regulatory Status:

All substitute parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8541.10.0080, matching the regulatory profile of the main part. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all parts.

Frequently Asked Questions (FAQ)

Q: Can SBYV27-100-E3/54 be used as a direct replacement for 2A02G A0G?

A: Yes. SBYV27-100-E3/54 maintains the same 100 V reverse voltage rating, 2 A average rectified current, DO-204AC (DO-15) through-hole axial package, and operating temperature range (-55°C to 150°C). The primary difference is faster recovery speed (≤500ns vs. >500ns), which does not prevent substitution in standard rectification applications.

Q: What is the difference between EGP20B-E3/54 and EGP20B-E3/73?

A: Both parts are electrically identical with 100 V reverse voltage, 2 A average rectified current, and DO-204AC (DO-15) packaging. The suffix designations (-E3/54 and -E3/73) indicate different tape and reel packaging configurations for automated assembly. Electrical performance and mechanical compatibility are equivalent.

Q: Can GP15B-E3/54 replace 2A02G A0G in all applications?

A: No. GP15B-E3/54 is rated for 1.5 A average rectified current compared to the 2A02G A0G's 2 A rating. Substitution is limited to applications where the circuit current demand does not exceed 1.5 A. The 100 V reverse voltage rating and DO-204AC (DO-15) package are compatible.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the regulatory compliance of the main part 2A02G A0G.

Q: What is the temperature operating range difference between the main part and substitutes?

A: The 2A02G A0G operates from -55°C to 150°C. SBYV27-100-E3/54 and UG2B-E3/54 maintain this range. EGP20B, EGP20B-E3/54, and EGP20B-E3/73 extend the lower limit to -65°C. GP15B-E3/54 and RGP15B-E3/54 extend the upper limit to 175°C.

Q: Is the DO-204AC package identical to DO-15?

A: Yes. DO-204AC and DO-15 are equivalent designations for the same through-hole axial package used in all listed parts. Both designations refer to the same physical form factor and pin configuration.

Q: What does "Fast Recovery" vs. "Standard Recovery" mean for rectifier diodes?

A: Recovery speed refers to the reverse recovery time (trr), which is the time required for the diode to stop conducting when the applied voltage reverses. Fast Recovery (≤500ns) diodes switch off more quickly than Standard Recovery (>500ns) diodes. For general-purpose rectification, both types are functionally compatible, though Fast Recovery diodes generate less switching noise and heat.

Q: Can I use EGP20B (Fairchild) instead of the Taiwan Semiconductor Corporation part?

A: Yes. EGP20B maintains the same 100 V reverse voltage, 2 A average rectified current, and DO-204AC (DO-15) package. All electrical and mechanical parameters are compatible. The manufacturer difference does not affect substitution suitability.

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