HER205-TP Equivalent & Substitute Parts

Part Overview

The HER205-TP is a general-purpose rectifier diode rated for 400 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 obsolete. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary for new designs and ongoing production requirements. Substitute components maintain the same electrical specifications and mechanical compatibility while offering active product status and improved availability.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	400 V
Current - Average Rectified (Io)	2 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 2 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	50 ns
Current - Reverse Leakage @ Vr	5 µA @ 400 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 HER205-TP is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 400 V
Current - Average Rectified (Io): 2 A
Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 2 A
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
Operating Temperature - Junction: -55°C ~ 150°C

Mechanical Equivalence Criteria:

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

Compliance Criteria:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts listed maintain these core parameters. Variations in secondary parameters such as Reverse Recovery Time (trr), Current - Reverse Leakage, and Capacitance do not disqualify substitution when primary electrical and mechanical specifications are met. Parts with active product status are prioritized over obsolete components.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	trr (ns)	Ir @ Vr	Package	Product Status	Packaging Type
HER205-TP	Micro Commercial Co	400 V	2 A	1.3 V @ 2 A	50 ns	5 µA @ 400 V	DO-15	Obsolete	Bulk
HER205G-TP	Micro Commercial Co	400 V	2 A	1.3 V @ 2 A	50 ns	5 µA @ 400 V	DO-15	Active	Tape & Reel (TR)
FR204G	Taiwan Semiconductor Corporation	400 V	2 A	1.3 V @ 2 A	150 ns	5 µA @ 400 V	DO-204AC (DO-15)	Active	Cut Tape (CT)
HER205G	Taiwan Semiconductor Corporation	400 V	2 A	1.3 V @ 2 A	50 ns	5 µA @ 400 V	DO-204AC (DO-15)	Active	Cut Tape (CT)
PG204R_R2_00001	Panjit International Inc.	400 V	2 A	1.3 V @ 2 A	150 ns	1 µA @ 400 V	DO-15	Active	Tape & Reel (TR)
SF26G	Taiwan Semiconductor Corporation	400 V	2 A	1.3 V @ 2 A	35 ns	5 µA @ 400 V	DO-204AC (DO-15)	Active	Cut Tape (CT)
SF26G A0G	Taiwan Semiconductor Corporation	400 V	2 A	1.3 V @ 2 A	35 ns	5 µA @ 400 V	DO-204AC (DO-15)	Active	Cut Tape (CT)
SF26GH	Taiwan Semiconductor Corporation	400 V	2 A	1.3 V @ 2 A	35 ns	5 µA @ 400 V	DO-204AC (DO-15)	Active	Cut Tape (CT)
SF2L6G	Taiwan Semiconductor Corporation	400 V	2 A	1.3 V @ 2 A	35 ns	1 µA @ 400 V	DO-204AC (DO-15)	Active	Cut Tape (CT)
SF2L6GH	Taiwan Semiconductor Corporation	400 V	2 A	1.3 V @ 2 A	35 ns	1 µA @ 400 V	DO-204AC (DO-15)	Active	Cut Tape (CT)
UF204G_R2_00001	Panjit International Inc.	400 V	2 A	1.3 V @ 2 A	50 ns	1 µA @ 400 V	DO-15	Active	Tape & Reel (TR)

Engineering Selection Recommendations

Direct Replacement (Same Manufacturer, Active Status): HER205G-TP from Micro Commercial Co is the direct active equivalent to HER205-TP. This part maintains identical electrical specifications and reverse recovery time (50 ns) while offering active product status. Packaging differs only in format (Tape & Reel vs. bulk), which does not affect electrical performance.

Parametric Equivalents with Active Status: The following parts are parametrically equivalent and maintain all critical electrical and mechanical specifications:

HER205G (Taiwan Semiconductor Corporation): Identical electrical performance to HER205-TP with active status. Supplied in Cut Tape format.
SF26G, SF26G A0G, SF26GH (Taiwan Semiconductor Corporation): Faster reverse recovery time (35 ns vs. 50 ns) with identical voltage and current ratings. SF26GH includes AEC-Q101 automotive qualification.
SF2L6G, SF2L6GH (Taiwan Semiconductor Corporation): Faster reverse recovery time (35 ns) with lower reverse leakage current (1 µA vs. 5 µA). SF2L6GH includes AEC-Q101 automotive qualification.
PG204R_R2_00001 (Panjit International Inc.): Active status with lower reverse leakage current (1 µA). Reverse recovery time is 150 ns.
UF204G_R2_00001 (Panjit International Inc.): Active status with lower reverse leakage current (1 µA) and 50 ns reverse recovery time. Supplied in Tape & Reel format.
FR204G (Taiwan Semiconductor Corporation): Active status with 150 ns reverse recovery time.

All substitute parts are ROHS3 compliant with MSL rating of 1 (Unlimited) and operating temperature range of -55°C to 150°C, matching the original specification.

Automotive Applications: For applications requiring automotive-grade components, SF26GH and SF2L6GH are qualified to AEC-Q101 standard and provide equivalent electrical performance with improved reverse recovery characteristics.

Frequently Asked Questions (FAQ)

Q: Can HER205G-TP be used as a direct replacement for HER205-TP? A: Yes. HER205G-TP is the active equivalent from the same manufacturer with identical electrical specifications (400 V, 2 A, 1.3 V forward voltage, 50 ns reverse recovery time). The only difference is packaging format (Tape & Reel vs. bulk), which does not affect circuit performance.

Q: What is the difference between SF26G and SF2L6G? A: Both parts have identical voltage and current ratings (400 V, 2 A). The primary difference is reverse leakage current: SF26G has 5 µA @ 400 V, while SF2L6G has 1 µA @ 400 V. Both have 35 ns reverse recovery time. SF2L6G is suitable for applications requiring lower leakage specifications.

Q: Are SF26GH and SF2L6GH suitable for automotive applications? A: Yes. Both SF26GH and SF2L6GH carry AEC-Q101 automotive qualification and are suitable for automotive-grade applications. They maintain the same electrical specifications as their non-automotive counterparts (SF26G and SF2L6G respectively).

Q: What does the "H" designation in part numbers like SF26GH and SF2L6GH indicate? A: The "H" designation indicates automotive-grade qualification (AEC-Q101). These parts meet automotive reliability and quality standards while maintaining identical electrical performance to the standard versions.

Q: Can I use parts with different reverse recovery times (trr) as substitutes? A: Yes, provided all other critical parameters match. The HER205-TP has 50 ns reverse recovery time. Substitutes with faster recovery times (35 ns) such as SF26G, SF26GH, SF2L6G, and SF2L6GH are acceptable. Parts with slower recovery times (150 ns) such as FR204G and PG204R_R2_00001 are also acceptable for general-purpose applications where the slower recovery does not create circuit timing issues.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging? A: Both are tape formats for automated assembly. Cut Tape is supplied in shorter lengths, while Tape & Reel is supplied on continuous reels for high-volume production. Electrical performance is identical; the choice depends on assembly equipment and production volume requirements.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed are ROHS3 compliant with MSL rating of 1 (Unlimited), matching the original HER205-TP specification.

Q: Can I substitute HER205-TP with UF204G_R2_00001? A: Yes. UF204G_R2_00001 is parametrically equivalent with identical voltage (400 V), current (2 A), and forward voltage (1.3 V @ 2 A) specifications. It has active product status and lower reverse leakage current (1 µA vs. 5 µA). Reverse recovery time is 50 ns, matching the original part.

Q: What is the advantage of using parts with lower reverse leakage current? A: Lower reverse leakage current (1 µA vs. 5 µA) reduces power dissipation and heat generation in the reverse-biased state. This is beneficial for applications with stringent power efficiency requirements or thermal constraints. Parts such as SF2L6G, SF2L6GH, PG204R_R2_00001, and UF204G_R2_00001 offer this advantage.

Q: Are there inventory considerations when selecting a substitute? A: Yes. Inventory levels vary across substitute parts. SF26G and SF26GH have the highest inventory (4400 and 4271 units respectively), while SF2L6G has lower inventory (674 units). For high-volume production, parts with higher inventory availability may be preferred to ensure supply continuity.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message