HER206G-TP Equivalent & Substitute Parts

Part Overview

The HER206G-TP is a general-purpose rectifier diode rated for 600 V DC reverse voltage and 2 A average rectified current in a DO-15 through-hole package. Manufactured by Micro Commercial Co, this component is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent and substitute parts is necessary for ongoing maintenance, repair, and legacy system support where this diode remains in active use.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	600 V
Current - Average Rectified (Io)	2 A
Voltage - Forward (Vf) (Max) @ If	1.7 V @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	75 ns
Current - Reverse Leakage @ Vr	5 µA @ 600 V
Mounting Type	Through Hole
Package / Case	DO-204AC, DO-15, Axial
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the HER206G-TP is determined by strict electrical and mechanical compatibility. The following parameters establish substitution validity:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 600 V
Current - Average Rectified (Io): Must equal or exceed 2 A
Mounting Type: Must be Through Hole
Package / Case: Must be DO-204AC, DO-15, or Axial equivalent
Operating Temperature Range: Must encompass or exceed -55°C to 150°C

Secondary Compatibility Factors:

Voltage - Forward (Vf) (Max) @ If: Electrical performance parameter
Reverse Recovery Time (trr): Switching speed characteristic
Current - Reverse Leakage @ Vr: Leakage current specification
RoHS Compliance: Environmental and regulatory requirement

Substitute parts are grouped into two categories: Direct Equivalents (matching all primary criteria with identical or superior electrical performance) and Parametric Equivalents (meeting all primary criteria with variations in secondary parameters).

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf @ If	trr	Ir @ Vr	Package	Temp Range	Status
HER206G-TP	Micro Commercial Co	600 V	2 A	1.7 V @ 2 A	75 ns	5 µA @ 600 V	DO-15	-55°C ~ 150°C	Not For New Designs
EGP20J	Fairchild Semiconductor	600 V	2 A	1.7 V @ 2 A	75 ns	5 µA @ 600 V	DO-15	-65°C ~ 150°C	Active
GP15J-E3/73	Vishay General Semiconductor - Diodes Division	600 V	1.5 A	1.1 V @ 1.5 A	3.5 µs	5 µA @ 600 V	DO-15	-65°C ~ 175°C	Active
HER206G A0G	Taiwan Semiconductor Corporation	600 V	2 A	1.7 V @ 2 A	75 ns	5 µA @ 600 V	DO-15	-55°C ~ 150°C	Active
ER206_R2_00001	Panjit International Inc.	600 V	2 A	1.7 V @ 2 A	35 ns	1 µA @ 600 V	DO-15	-55°C ~ 150°C	Active
HER206G	Taiwan Semiconductor Corporation	600 V	2 A	1.7 V @ 2 A	75 ns	5 µA @ 600 V	DO-15	-55°C ~ 150°C	Active
SF28G	Taiwan Semiconductor Corporation	600 V	2 A	1.7 V @ 2 A	35 ns	5 µA @ 600 V	DO-15	-55°C ~ 150°C	Active
SF28GH	Taiwan Semiconductor Corporation	600 V	2 A	1.7 V @ 2 A	35 ns	5 µA @ 600 V	DO-15	-55°C ~ 150°C	Active
SF2L8G	Taiwan Semiconductor Corporation	600 V	2 A	1.7 V @ 2 A	35 ns	1 µA @ 600 V	DO-15	-55°C ~ 150°C	Active
SF2L8GH	Taiwan Semiconductor Corporation	600 V	2 A	1.7 V @ 2 A	35 ns	1 µA @ 600 V	DO-15	-55°C ~ 150°C	Active

Engineering Selection Recommendations

Direct Equivalents (Identical Electrical Performance):

The following parts provide direct substitution with matching electrical specifications and active product status:

EGP20J (Fairchild Semiconductor): Matches all primary electrical parameters. Extended lower operating temperature limit (-65°C) provides additional thermal margin. Active product status ensures ongoing availability.
HER206G A0G (Taiwan Semiconductor Corporation): Identical electrical specifications to the original HER206G-TP. Active product status with established supply chain.
HER206G (Taiwan Semiconductor Corporation): Parametric equivalent with identical electrical performance. Active product status. Available in Cut Tape packaging.

Parametric Equivalents (Enhanced or Modified Performance):

The following parts meet all primary substitution criteria with variations in secondary parameters:

ER206_R2_00001 (Panjit International Inc.): Meets all primary criteria. Reverse recovery time reduced to 35 ns (improved switching speed). Reverse leakage current reduced to 1 µA (improved leakage performance). Active product status.
SF28G (Taiwan Semiconductor Corporation): Meets all primary criteria. Reverse recovery time reduced to 35 ns. Capacitance specification 20 pF @ 4V, 1MHz. Active product status with high inventory availability (30,200 pcs).
SF28GH (Taiwan Semiconductor Corporation): Meets all primary criteria with automotive-grade qualification (AEC-Q101). Reverse recovery time 35 ns. Active product status.
SF2L8G (Taiwan Semiconductor Corporation): Meets all primary criteria. Reverse recovery time 35 ns. Reverse leakage current 1 µA. Active product status.
SF2L8GH (Taiwan Semiconductor Corporation): Meets all primary criteria with automotive-grade qualification (AEC-Q101). Reverse recovery time 35 ns. Reverse leakage current 1 µA. Active product status.

Limited Substitution:

GP15J-E3/73 (Vishay General Semiconductor - Diodes Division): Current rating of 1.5 A does not meet the 2 A requirement of the original part. This part is suitable only for applications where the circuit current demand does not exceed 1.5 A. Standard recovery speed (>500ns) differs from the fast recovery specification of the original part.

Compliance and Regulatory Status:

All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the environmental compliance profile of the original HER206G-TP. All parts carry ECCN EAR99 and HTSUS 8541.10.0080 classifications.

Frequently Asked Questions (FAQ)

Q: Can I use GP15J-E3/73 as a direct replacement for HER206G-TP?

A: No. The GP15J-E3/73 has a maximum average rectified current rating of 1.5 A, which is below the 2 A specification of the HER206G-TP. Use this part only in applications where circuit current does not exceed 1.5 A. Additionally, the GP15J-E3/73 uses standard recovery technology (>500ns) rather than fast recovery (≤500ns), affecting switching performance.

Q: What is the difference between SF28G and SF2L8G?

A: Both parts meet the primary electrical criteria of the HER206G-TP. The SF2L8G has a reverse leakage current specification of 1 µA @ 600 V, compared to 5 µA @ 600 V for the SF28G. Both have identical reverse recovery time (35 ns) and forward voltage (1.7 V @ 2 A). Selection depends on application requirements for leakage current performance.

Q: Are automotive-grade versions available?

A: Yes. The SF28GH and SF2L8GH are automotive-grade equivalents with AEC-Q101 qualification. Both meet all primary electrical criteria of the HER206G-TP and are suitable for automotive applications requiring this certification.

Q: Does packaging affect substitution?

A: All substitute parts use the same through-hole DO-15 (DO-204AC) package as the original HER206G-TP. Packaging differences exist only in supplier delivery format (Tape & Reel, Cut Tape, or Bulk), which does not affect electrical or mechanical compatibility in the circuit.

Q: Why do some substitutes have faster reverse recovery times?

A: Reverse recovery time (trr) is a secondary parameter that does not prevent substitution. Parts with lower trr values (35 ns versus 75 ns) exhibit improved switching speed characteristics. This is a performance enhancement that does not compromise circuit compatibility.

Q: Is EGP20J a better choice than HER206G?

A: EGP20J provides identical electrical performance to HER206G-TP with an extended lower operating temperature limit (-65°C versus -55°C). Selection between EGP20J and other equivalents depends on application-specific requirements for temperature range, availability, and cost. All listed direct equivalents are electrically interchangeable.

Q: What is the significance of the "Not For New Designs" status of HER206G-TP?

A: This status indicates the original part has reached end-of-life and is no longer recommended for new circuit designs. However, it remains suitable for maintenance and repair of existing systems. All substitute parts listed carry "Active" product status, ensuring continued availability for replacement applications.

Q: Can I mix different substitute parts in the same circuit?

A: Yes. All substitute parts listed meet the same primary electrical and mechanical criteria. Mixing different part numbers in the same circuit is acceptable from an electrical compatibility standpoint. However, for consistency and simplified inventory management, using a single substitute part number across a design is recommended.

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