HER201G A0G Equivalent & Substitute Parts

Part Overview

The HER201G A0G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 50 V DC reverse voltage and 2 A average rectified current. The device features fast recovery characteristics with a 50 ns reverse recovery time and is packaged in a DO-204AC (DO-15) axial through-hole configuration. This diode is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and component availability options for applications requiring compatible electrical and mechanical specifications.

Substiute Parts

HER201G A0G

Taiwan Semiconductor CorporationIn Stock: 910HER201G A0G Datasheet

Current PartRFQ

EGP20A

Fairchild SemiconductorIn Stock: 24889EGP20A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HER201G A0G are identified based on electrical parameter equivalence and mechanical compatibility. The primary substitution criteria are:

Electrical Parameters (Critical for Substitution):

• Voltage - DC Reverse (Vr) (Max): 50 V
• Current - Average Rectified (Io): 2 A
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Reverse Recovery Time (trr): 50 ns

Mechanical Parameters (Required for Substitution):

• Package / Case: DO-204AC, DO-15, Axial
• Mounting Type: Through Hole

The EGP20A manufactured by Fairchild Semiconductor meets all critical electrical and mechanical substitution criteria. Both devices operate within the same voltage and current ratings, share identical fast recovery speed classification and reverse recovery time specifications, and utilize compatible through-hole axial packaging. Forward voltage characteristics differ slightly but remain within acceptable operating parameters for general-purpose rectification applications.

Parameter Comparison

Engineering Selection Recommendations

Both the HER201G A0G and EGP20A are Active product status devices suitable for direct substitution in general-purpose rectification circuits. Selection between these parts is based on the following engineering considerations:

HER201G A0G (Taiwan Semiconductor Corporation):

• RoHS3 compliant with documented compliance status
• Moisture Sensitivity Level (MSL) rated at 1 (Unlimited)
• Forward voltage specification of 1 V @ 2 A
• Operating temperature range: -55°C to 150°C
• ECCN classification: EAR99

EGP20A (Fairchild Semiconductor):

• REACH Unaffected status confirmed
• Forward voltage specification of 950 mV @ 2 A (lower forward drop)
• Operating temperature range: -65°C to 150°C (extended low-temperature rating)
• Moisture Sensitivity Level vendor undefined
• Higher inventory availability (24,846 pcs vs. 886 pcs)

Both devices share identical voltage ratings, current ratings, reverse recovery time, and reverse leakage specifications. The EGP20A provides a lower forward voltage drop and extended low-temperature operating range. The HER201G A0G provides documented RoHS3 compliance and defined moisture sensitivity level. Selection should be based on specific application requirements regarding forward voltage performance, temperature operating range, and compliance documentation needs.

Frequently Asked Questions (FAQ)

Q: Can the EGP20A directly replace the HER201G A0G in existing circuit designs?

A: Yes. Both devices are rated for 50 V DC reverse voltage, 2 A average rectified current, and feature identical 50 ns reverse recovery time. Both utilize DO-204AC (DO-15) axial through-hole packaging and are mechanically and electrically compatible for general-purpose rectification applications.

Q: What is the difference in forward voltage between these two diodes?

A: The HER201G A0G specifies a maximum forward voltage of 1 V @ 2 A, while the EGP20A specifies 950 mV @ 2 A. The EGP20A exhibits a lower forward voltage drop of approximately 50 mV. This difference may affect power dissipation in high-current applications but does not prevent substitution.

Q: Are there temperature range differences between these parts?

A: Yes. The HER201G A0G operates from -55°C to 150°C junction temperature, while the EGP20A operates from -65°C to 150°C. The EGP20A provides an extended low-temperature operating range of 10°C. Both devices support the same maximum junction temperature of 150°C.

Q: Do both parts have the same package configuration?

A: Yes. Both the HER201G A0G and EGP20A are packaged in DO-204AC (DO-15) axial through-hole configuration. They are mechanically identical and mount identically on printed circuit boards.

Q: What is the reverse recovery time specification for these diodes?

A: Both devices specify a reverse recovery time (trr) of 50 ns, confirming their classification as fast recovery diodes. This specification is identical across both parts.

Q: Are there compliance or regulatory differences between these parts?

A: The HER201G A0G is documented as RoHS3 compliant with ECCN classification EAR99. The EGP20A is confirmed as REACH Unaffected. Both are REACH Unaffected. Compliance requirements should be verified against specific application and regional regulations.

Q: What is the reverse leakage current specification?

A: Both the HER201G A0G and EGP20A specify a maximum reverse leakage current of 5 µA @ 50 V. This specification is identical for both devices.

Q: Can these diodes be used in high-frequency switching applications?

A: Both devices are classified as fast recovery diodes with 50 ns reverse recovery time and support switching frequencies up to 500 ns. They are suitable for general-purpose rectification and moderate-frequency switching applications within their rated specifications.