HER307-TP Equivalent & Substitute Parts

Part Overview

The HER307-TP is a general-purpose rectifier diode rated for 800 V DC reverse voltage and 3 A average rectified current in a DO-201AD axial through-hole package. Manufactured by Micro Commercial Co, this component is classified as obsolete. Due to its obsolete product status, equivalent and substitute parts from active manufacturers are necessary for ongoing design support, production continuity, and long-term component availability.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	800 V
Current - Average Rectified (Io)	3 A
Voltage - Forward (Vf) (Max) @ If	1.7 V @ 3 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	75 ns
Current - Reverse Leakage @ Vr	10 µA @ 800 V
Package / Case	DO-201AD, Axial
Mounting Type	Through Hole
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the HER307-TP are classified based on strict electrical and mechanical parameter matching within the rectifier diode category. Substitution eligibility is determined by the following criteria:

Primary Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 800 V
Current - Average Rectified (Io): 3 A
Package / Case: DO-201AD, Axial
Mounting Type: Through Hole
Operating Temperature Range: -55°C ~ 150°C

Secondary Electrical Parameters:

Voltage - Forward (Vf) (Max) @ If: 1.7 V @ 3 A (or lower)
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr): 75 ns (or lower)
Current - Reverse Leakage @ Vr: 10 µA @ 800 V (or lower)

Substitute parts are grouped into two categories:

Parametric Equivalents: Parts that match all primary parameters and secondary electrical specifications within the defined tolerances. These parts are direct functional replacements.

Similar Parts: Parts that match all primary parameters but exhibit different secondary electrical characteristics (such as standard recovery speed instead of fast recovery). These parts maintain voltage and current ratings but may have different performance characteristics in specific circuit applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Product Status	Vr (Max)	Io	Vf (Max) @ If	Speed	trr	Ir @ Vr	Package	Packaging Type
HER307-TP	Micro Commercial Co	Obsolete	800 V	3 A	1.7 V @ 3 A	Fast Recovery ≤ 500ns	75 ns	10 µA @ 800 V	DO-201AD	Bulk
UF5407GP-TP	Micro Commercial Co	Active	800 V	3 A	1.7 V @ 3 A	Fast Recovery ≤ 500ns	75 ns	10 µA @ 800 V	DO-201AD	Tape & Reel (TR)
HER307G	Taiwan Semiconductor Corporation	Active	800 V	3 A	1.7 V @ 3 A	Fast Recovery ≤ 500ns	75 ns	10 µA @ 800 V	DO-201AD	Cut Tape (CT)
UF308G_R2_00001	Panjit International Inc.	Active	800 V	3 A	1.7 V @ 3 A	Fast Recovery ≤ 500ns	100 ns	1 µA @ 800 V	DO-201AD	Tape & Reel (TR)
UF5407-E3/54	Vishay General Semiconductor - Diodes Division	Active	800 V	3 A	1.7 V @ 3 A	Fast Recovery ≤ 500ns	75 ns	10 µA @ 800 V	DO-201AD	Cut Tape (CT)
UF5407-E3/73	Vishay General Semiconductor - Diodes Division	Active	800 V	3 A	1.7 V @ 3 A	Fast Recovery ≤ 500ns	75 ns	10 µA @ 800 V	DO-201AD	Cut Tape (CT)
BY254P-E3/73	Vishay General Semiconductor - Diodes Division	Active	800 V	3 A	1.1 V @ 3 A	Standard Recovery >500ns	3 µs	5 µA @ 800 V	DO-201AD	Bulk

Engineering Selection Recommendations

Parametric Equivalent Selection (Preferred for Direct Replacement):

The following parts are parametric equivalents with active product status and full compliance certifications:

UF5407GP-TP (Micro Commercial Co): Active status, ROHS3 compliant, identical electrical specifications to HER307-TP. Available in Tape & Reel packaging. Highest inventory availability at 948 pcs.
HER307G (Taiwan Semiconductor Corporation): Active status, ROHS3 compliant, identical electrical specifications to HER307-TP. Available in Cut Tape packaging. Highest inventory availability at 3362 pcs.
UF5407-E3/54 and UF5407-E3/73 (Vishay General Semiconductor - Diodes Division): Active status, ROHS3 compliant, identical electrical specifications to HER307-TP. Available in Cut Tape packaging. Highest combined inventory availability at 4965 pcs and 4300 pcs respectively.

Alternative Parametric Equivalent:

UF308G_R2_00001 (Panjit International Inc.): Active status, ROHS3 compliant. Matches all primary parameters and electrical specifications with exception of reverse recovery time (100 ns vs. 75 ns) and reverse leakage current (1 µA vs. 10 µA). Available in Tape & Reel packaging.

Similar Part (Different Recovery Characteristics):

BY254P-E3/73 (Vishay General Semiconductor - Diodes Division): Active status, ROHS3 compliant. Matches voltage and current ratings but features standard recovery speed (>500ns) instead of fast recovery, with significantly longer reverse recovery time (3 µs vs. 75 ns) and lower forward voltage (1.1 V vs. 1.7 V). This part is suitable only for applications where fast recovery performance is not required.

All recommended substitutes maintain the DO-201AD through-hole package format, operating temperature range of -55°C to 150°C, and ROHS3 compliance status.

Frequently Asked Questions (FAQ)

Q: Can UF5407GP-TP be used as a direct replacement for HER307-TP?

A: Yes. UF5407GP-TP is a parametric equivalent with identical electrical specifications: 800 V reverse voltage, 3 A average rectified current, 1.7 V forward voltage at 3 A, fast recovery speed with 75 ns reverse recovery time, and 10 µA reverse leakage current. Both use the DO-201AD through-hole package. The primary difference is packaging format (Tape & Reel vs. bulk) and active product status.

Q: What is the difference between HER307G and UF5407-E3/54?

A: Both are parametric equivalents with identical electrical specifications and DO-201AD packaging. The differences are manufacturer (Taiwan Semiconductor Corporation vs. Vishay), packaging format (Cut Tape vs. Cut Tape), and inventory availability. Electrical performance is equivalent.

Q: Why is BY254P-E3/73 listed as a similar part rather than a parametric equivalent?

A: BY254P-E3/73 differs in recovery speed classification and performance characteristics. It features standard recovery speed (>500ns) instead of fast recovery (≤500ns), with a reverse recovery time of 3 µs compared to 75 ns in the HER307-TP. Additionally, forward voltage is lower at 1.1 V versus 1.7 V. While voltage and current ratings match, the different recovery characteristics make it suitable only for applications where fast recovery is not a requirement.

Q: Does packaging format affect electrical performance?

A: No. Packaging format (Tape & Reel, Cut Tape, or bulk) affects handling, storage, and assembly processes but does not affect electrical performance. All substitute parts in the same package type (DO-201AD) are electrically equivalent within their specified parameter ranges.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant, matching the compliance status of the HER307-TP.

Q: What is the operating temperature range for substitute parts?

A: All substitute parts maintain the same operating temperature range as the HER307-TP: -55°C to 150°C junction temperature.

Q: Can UF308G_R2_00001 be used in place of HER307-TP?

A: UF308G_R2_00001 is a parametric equivalent with matching voltage, current, and package specifications. However, it has a slightly longer reverse recovery time (100 ns vs. 75 ns) and significantly lower reverse leakage current (1 µA vs. 10 µA). These differences are within acceptable ranges for most applications but should be evaluated for circuits with strict recovery time requirements.

Q: Which substitute part has the highest inventory availability?

A: UF5407-E3/54 has the highest inventory availability at 4965 pcs, followed by UF5407-E3/73 at 4300 pcs. HER307G has 3362 pcs available.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message