HER3004PT C0G Equivalent & Substitute Parts

Part Overview

The HER3004PT C0G is a fast recovery diode array manufactured by Taiwan Semiconductor Corporation, configured as a 1 Pair Common Cathode rectifier with 300 V reverse voltage rating and 30 A average rectified current per diode. The device is housed in a TO-247-3 through-hole package and is classified as Active product status with full ROHS3 compliance.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained within the allowed specifications for this diode array category. Substitution becomes necessary due to inventory availability, manufacturing discontinuation, or supply chain optimization while maintaining circuit performance and thermal characteristics.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	300	V
Current - Average Rectified (Io) (per Diode)	30	A
Voltage - Forward (Vf) (Max) @ If	1 V @ 15 A	V
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	10	µA @ 300 V
Operating Temperature - Junction	-55 to 150	°C
Diode Configuration	1 Pair Common Cathode	-
Package / Case	TO-247-3	-
Mounting Type	Through Hole	-
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	-

Substitute Part Grouping Explanation

Substitute parts for the HER3004PT C0G are grouped based on strict adherence to the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 300 V
Diode Configuration: 1 Pair Common Cathode
Package / Case: TO-247-3
Mounting Type: Through Hole
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
Technology: Standard
RoHS Status: ROHS3 Compliant

Allowable Variation Parameters:

Current - Average Rectified (Io) (per Diode): Equal to or greater than 30 A
Voltage - Forward (Vf) (Max) @ If: Within acceptable forward voltage range for fast recovery diodes
Reverse Recovery Time (trr): Within fast recovery specification
Current - Reverse Leakage @ Vr: Within acceptable leakage limits
Operating Temperature - Junction (Max): Equal to or greater than 150°C

Substitute parts meeting these criteria maintain electrical compatibility and thermal performance characteristics required for direct circuit substitution.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io (per Diode) [A]	Vf (Max) [V]	trr [ns]	Ir @ Vr [µA]	Tj (Max) [°C]	Package
HER3004PT C0G	Taiwan Semiconductor Corporation	300	30	1.0 @ 15 A	50	10 @ 300 V	150	TO-247-3
APT30D30BCTG	Microchip Technology	300	30	1.4 @ 30 A	25	250 @ 300 V	150	TO-247-3
DPG80C300HB	IXYS	300	40	1.36 @ 40 A	35	1 @ 300 V	175	TO-247-3
STTH3003CW	STMicroelectronics	300	15	1.25 @ 15 A	40	40 @ 300 V	175	TO-247-3
STTH30R03CW	STMicroelectronics	300	15	1.9 @ 15 A	35	20 @ 300 V	175	TO-247-3
STTH50W03CW	STMicroelectronics	300	25	1.5 @ 25 A	27	15 @ 300 V	175	TO-247-3
STTH6003CW	STMicroelectronics	300	30	1.25 @ 30 A	55	60 @ 300 V	175	TO-247-3
STTH60W03CW	STMicroelectronics	300	30	1.45 @ 30 A	25	20 @ 300 V	175	TO-247-3

Engineering Selection Recommendations

Direct Substitutes (Equivalent Current Rating):

APT30D30BCTG (Microchip Technology) and STTH6003CW / STTH60W03CW (STMicroelectronics) maintain the 30 A current rating of the HER3004PT C0G. All three substitute options are Active product status with ROHS3 compliance and REACH Unaffected certification. The APT30D30BCTG offers faster reverse recovery time (25 ns) compared to the original 50 ns specification. STTH60W03CW provides the fastest recovery time (25 ns) with higher maximum junction temperature (175°C). STTH6003CW maintains identical forward voltage characteristics at the rated current.

Higher Current Capacity Substitute:

DPG80C300HB (IXYS) provides 40 A current capacity, exceeding the 30 A requirement. This part is suitable for applications requiring thermal margin or future current demand increases. The device features superior reverse leakage characteristics (1 µA) and extended junction temperature range to 175°C. The HiPerFRED²™ series designation indicates optimized fast recovery performance.

Lower Current Substitutes (Derating Applications):

STTH3003CW, STTH30R03CW, and STTH50W03CW are suitable only for applications where the circuit can operate at reduced current levels (15 A, 15 A, and 25 A respectively). These parts are not recommended as direct replacements for 30 A rated designs but serve applications with lower current requirements while maintaining 300 V voltage rating and TO-247-3 package compatibility.

All substitute parts maintain Active product status, ROHS3 compliance, and through-hole TO-247-3 mounting configuration required for direct PCB compatibility.

Frequently Asked Questions (FAQ)

Q: Can STTH3003CW or STTH30R03CW replace HER3004PT C0G in a 30 A application?

A: No. STTH3003CW and STTH30R03CW are rated for 15 A average rectified current per diode, which is insufficient for circuits designed for 30 A operation. These parts are suitable only for applications with maximum 15 A current requirements.

Q: Is DPG80C300HB a suitable substitute despite its 40 A rating?

A: Yes. DPG80C300HB maintains all mandatory parameters: 300 V reverse voltage, 1 Pair Common Cathode configuration, TO-247-3 package, and fast recovery speed classification. The higher 40 A current rating provides additional thermal margin and is electrically compatible with 30 A designs. The device operates at higher junction temperature (175°C maximum) compared to the original 150°C specification.

Q: What is the difference between STTH6003CW and STTH60W03CW?

A: Both parts maintain 30 A current rating and 300 V reverse voltage. STTH60W03CW offers faster reverse recovery time (25 ns versus 55 ns) and lower reverse leakage current (20 µA versus 60 µA). STTH60W03CW is preferred for applications sensitive to switching losses and leakage current characteristics.

Q: Are all substitute parts available in the same TO-247-3 package?

A: Yes. All substitute parts listed are housed in TO-247-3 through-hole packages with identical pin configurations, ensuring direct PCB compatibility without layout modifications.

Q: Do all substitute parts meet RoHS3 compliance?

A: Yes. All substitute parts are ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory requirements equivalent to the HER3004PT C0G.

Q: What is the significance of reverse recovery time differences among substitutes?

A: Reverse recovery time (trr) affects switching losses and electromagnetic interference characteristics. Faster recovery times (lower trr values) reduce switching losses and heat generation. STTH60W03CW (25 ns) and APT30D30BCTG (25 ns) provide superior performance compared to HER3004PT C0G (50 ns) in high-frequency switching applications.

Q: Can STTH50W03CW be used in a 30 A design?

A: STTH50W03CW is rated for 25 A average rectified current per diode. This part operates at reduced current margin (83% of design requirement) and is not recommended as a direct substitute for 30 A rated circuits. Use only in applications with maximum 25 A current requirements.

Q: What is the moisture sensitivity level for all parts?

A: All listed parts, including HER3004PT C0G and all substitutes, have Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage and handling.

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