HER201G-TP Equivalent & Substitute Parts

Part Overview

The HER201G-TP is a general-purpose rectifier diode rated for 50 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 obsolescence or end-of-life status. Identifying equivalent and substitute parts is necessary for design continuity, inventory management, and ongoing production support where legacy designs remain in service.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1	V @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	5	µA @ 50 V
Mounting Type	Through Hole	—
Package / Case	DO-204AC, DO-15, Axial	—
Operating Temperature - Junction	-55°C ~ 150°C	—

Substitute Part Grouping Explanation

Substitution of the HER201G-TP is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

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

Mechanical Compatibility Criteria:

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

Compliance Criteria:

RoHS3 Compliance
REACH Unaffected status

All substitute parts listed meet or exceed these parameters and maintain functional equivalence within the specified operating range.

Parameter Comparison

Parameter	HER201G-TP (Main)	EGP20A	HER201G	UF200G_R2_00001
Manufacturer	Micro Commercial Co	Fairchild Semiconductor	Taiwan Semiconductor Corporation	Panjit International Inc.
Product Status	Not For New Designs	Active	Active	Active
Voltage - DC Reverse (Vr) (Max)	50 V	50 V	50 V	50 V
Current - Average Rectified (Io)	2 A	2 A	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	1 V @ 2 A	950 mV @ 2 A	1 V @ 2 A	1 V @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	50 ns	50 ns	50 ns	50 ns
Current - Reverse Leakage @ Vr	5 µA @ 50 V	5 µA @ 50 V	5 µA @ 50 V	1 µA @ 50 V
Capacitance @ Vr, F	50 pF @ 4V, 1MHz	70 pF @ 4V, 1MHz	35 pF @ 4V, 1MHz	35 pF @ 4V, 1MHz
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial
Supplier Device Package	DO-15	DO-15	DO-204AC (DO-15)	DO-15
Operating Temperature - Junction	-55°C ~ 150°C	-65°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant	Not specified	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

HER201G (Taiwan Semiconductor Corporation): This part is a parametric equivalent with active product status. It matches the HER201G-TP across all critical electrical parameters and maintains ROHS3 compliance and REACH unaffected status. The HER201G is suitable for direct replacement in applications requiring identical electrical performance and compliance certifications.

UF200G_R2_00001 (Panjit International Inc.): This part is a parametric equivalent with active product status. It meets all electrical requirements and exceeds performance in reverse leakage current (1 µA versus 5 µA), resulting in lower leakage characteristics. The UF200G_R2_00001 maintains ROHS3 compliance and REACH unaffected status. This part is suitable for applications where lower reverse leakage is beneficial.

EGP20A (Fairchild Semiconductor): This part is a similar equivalent with active product status. It meets all critical electrical parameters with a lower forward voltage drop (950 mV versus 1 V at 2 A) and an extended operating temperature range (-65°C to 150°C versus -55°C to 150°C). The EGP20A is available in bulk packaging. RoHS status is not specified for this part. The EGP20A is suitable for applications where lower forward voltage dissipation or extended low-temperature operation is required.

Frequently Asked Questions (FAQ)

Q: Can the EGP20A replace the HER201G-TP in all applications?

A: The EGP20A meets the core electrical specifications (50 V, 2 A, 50 ns reverse recovery time) and is mechanically compatible. However, RoHS3 compliance status is not specified for the EGP20A. Verify compliance requirements for your application before substitution.

Q: What is the difference between HER201G and UF200G_R2_00001?

A: Both parts are parametric equivalents with identical voltage, current, and recovery time ratings. The UF200G_R2_00001 has lower reverse leakage current (1 µA versus 5 µA), which reduces standby power dissipation. Both maintain ROHS3 compliance and REACH unaffected status.

Q: Are all substitute parts available in the same packaging?

A: The HER201G-TP and UF200G_R2_00001 are supplied in Tape & Reel (TR) packaging. The EGP20A is supplied in bulk packaging. The HER201G packaging is not specified. Verify packaging requirements for your assembly process.

Q: Does the lower forward voltage of the EGP20A affect circuit operation?

A: The EGP20A forward voltage is 950 mV at 2 A compared to 1 V for the HER201G-TP. This 50 mV difference is within typical circuit tolerance margins for general-purpose rectifier applications. Verify that your circuit design accommodates this variation.

Q: Why is the HER201G-TP marked as not for new designs?

A: The HER201G-TP is classified as not for new designs, indicating end-of-life or obsolescence status. For new designs, use HER201G, UF200G_R2_00001, or EGP20A, all of which have active product status.

Q: Are all substitute parts RoHS3 compliant?

A: HER201G and UF200G_R2_00001 are explicitly ROHS3 compliant. EGP20A RoHS status is not specified in the provided data. Confirm RoHS3 compliance with the supplier if this is a requirement for your application.

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