Taiwan Semiconductor Corporation HERF1001GH
- Part No.:
- HERF1001GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
HERF1001GH.pdf
- Description:
- DIODE ARRAY GP 50V 10A ITO220AB
- Quantity:
- Payment:

- Shipping:

Inventory:7,862
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Product details
Overview
HERF1001GH from Taiwan Semiconductor is a high-efficiency, AEC-Q101-qualified dual-die rectifier in ITO-220AB package, rated for 10A average forward current, 50V repetitive peak reverse voltage, and 125A surge current. It delivers low forward voltage (1.0 V max at 5A, 25°C), 3°C/W junction-to-case thermal resistance, and 50 ns reverse recovery time - optimized for DC/DC converters and freewheeling paths in automotive power systems.
For engineers reviewing the HERF1001GH datasheet, HERF1001GH pinout, HERF1001GH application, or HERF1001GH equivalent, key selection criteria include its AEC-Q101 qualification, 50V VRRM rating, dual-die configuration, ITO-220AB mechanical form factor, and verified thermal performance under high-current switching conditions.
Technical Context
This device integrates two independent silicon rectifier dies in a single ITO-220AB thermally enhanced package, enabling dual-channel or parallel operation. Its 50V VRRM and 1.0 V VF (max) at 5A support high-efficiency operation in low-voltage, high-current DC/DC stages.
The 50 ns trr, 3°C/W RθJC, and 125A IFSM rating confirm suitability for fast-switching, high-surge industrial and automotive power supplies where thermal management and transient robustness are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum non-repetitive reverse blocking voltage; defines safe operating range in low-voltage DC bus applications. |
| IF(AV) | 10 A - Continuous average forward current per diode; supports sustained conduction in high-duty-cycle converters. |
| IFSM | 125 A - Peak non-repetitive surge current (8.3 ms half-sine); withstands inrush and fault transients without failure. |
| VF (max) | 1.0 V @ 5A, 25°C - Low conduction loss per diode; reduces heat generation and improves system efficiency. |
| trr | 50 ns - Reverse recovery time; enables use in switching frequencies up to ~1 MHz with minimal switching loss. |
| RθJC | 3°C/W - Junction-to-case thermal resistance; allows direct heatsink mounting for reliable thermal dissipation at full load. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive-grade reliability including temperature cycling, HTRB, and HTGB. |
Pinout & Package
Package: ITO-220AB - Thermally optimized 3-terminal through-hole package with isolated tab (cathode-connected tab), matte tin-plated leads, UL 94V-0 molding compound, and 0.56 N·m maximum mounting torque.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Tab (Case) | Cathode (common for both dies) | Electrically connected to cathode terminals; must be mounted to heatsink with electrical isolation if required. |
| Lead 1 | Anode 1 | First rectifier anode; enables independent connection of first die in dual-die configuration. |
| Lead 2 | Anode 2 | Second rectifier anode; supports dual-output, interleaved, or redundant rectification topologies. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive power modules requiring extended temperature cycling, bias life, and humidity testing. |
| Dual-die configuration | Enables space-efficient dual-channel rectification or paralleling within one footprint, reducing PCB area vs. discrete solutions. |
| Low VF (1.0 V max) | Minimizes conduction losses in 12V–48V input DC/DC converters, improving efficiency by ≥1.2% at 10A load. |
| 50 ns reverse recovery | Reduces switching loss and EMI in 100 kHz–1 MHz SMPS designs compared to standard FRDs with >100 ns trr. |
| 3°C/W thermal resistance | Supports 10A continuous operation with ≤30°C temperature rise above heatsink, simplifying thermal design. |
Applications
| Automotive DC/DC Converter | Industrial 48V Power Supply |
|---|---|
Use Scenario: Step-down conversion from 48V battery rail to 12V auxiliary systems in EVs and HEVs. IC Role / Device Role / Timing Role: Primary output rectifier in synchronous or quasi-resonant flyback topology. Use Value: AEC-Q101 qualification ensures reliability across -40°C to +125°C ambient; low VF and trr reduce thermal stress and improve light-load efficiency. | Use Scenario: High-current output stage in telecom and server 48V intermediate bus converters. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectifier-assisted LLC resonant converter. Use Value: Dual-die layout allows independent gate drive timing control; 125A IFSM handles startup surges without derating. |
| Renewable Energy Inverter | Motor Drive Freewheeling |
Use Scenario: DC link protection and regeneration path in solar microinverters and battery storage inverters. IC Role / Device Role / Timing Role: Anti-parallel clamp diode across IGBTs in H-bridge output stage. Use Value: 50V VRRM matches low-voltage PV string architectures; 3°C/W RθJC maintains junction temp <130°C at 10A RMS. | Use Scenario: Inductive load commutation in 24V/48V BLDC motor controllers for robotics and automation. IC Role / Device Role / Timing Role: Freewheeling path during PWM off-time in half-bridge driver stage. Use Value: 50 ns trr prevents shoot-through risk in high-frequency PWM (>50 kHz); dual-anode layout simplifies PCB routing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH10R06DJF | 600V VRRM, 10A IF, TO-220AC package, single die, VF = 1.7V (max) | Higher voltage rating but higher VF; not AEC-Q101 qualified | Use only if 600V blocking is required and automotive qualification is unnecessary. |
| ONSEMI MUR1050CT | 50V VRRM, 10A IF, TO-220AB package, dual common-cathode, VF = 1.2V (max), trr = 60 ns | Same voltage/current rating; lacks AEC-Q101; slightly higher VF and slower trr | Acceptable for industrial non-automotive use where cost sensitivity outweighs AEC-Q101 need. |
Compared with STTH10R06DJF and MUR1050CT, HERF1001GH provides lower conduction loss (1.0 V vs. ≥1.2 V), faster switching (50 ns vs. ≥60 ns), and automotive-grade reliability - making it optimal for space-constrained, thermally demanding 50V automotive DC/DC systems.
Availability
HERF1001GH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial 48V power supplies, and motor drive freewheeling applications requiring stable component supply, long-term lifecycle assurance, and AEC-Q101 compliance.
Supply support for HERF1001GH includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and power semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in rectifiers, TVS diodes, MOSFETs, and automotive-qualified discrete devices.
The HERF1001GH belongs to TSC's high-efficiency rectifier product line, engineered specifically for automotive and industrial power conversion systems demanding low VF, fast trr, and robust thermal performance in compact packages.
FAQ
What is the maximum junction temperature rating for HERF1001GH?
The HERF1001GH has a maximum junction temperature (TJ) rating of +150°C, validated across its full operating range from -55°C to +150°C. This rating is maintained under specified thermal conditions, including proper heatsinking to achieve the 3°C/W RθJC performance. The device's AEC-Q101 qualification further confirms stable operation at TJ = 150°C under accelerated life testing.
Is HERF1001GH pin-compatible with standard ITO-220AB rectifiers?
Yes, HERF1001GH uses the industry-standard ITO-220AB outline with identical mechanical dimensions, lead spacing, and mounting hole placement. Its pinout - Cathode (tab), Anode 1 (lead 1), Anode 2 (lead 2) - matches dual-anode ITO-220AB rectifiers such as MUR10xxCT series, enabling drop-in replacement where dual-die functionality and AEC-Q101 compliance are acceptable.
Does HERF1001GH require external thermal interface material when mounted to a heatsink?
HERF1001GH requires thermal interface material (TIM) between its isolated metal tab and heatsink to ensure optimal thermal transfer and maintain the specified 3°C/W RθJC. Without TIM, interfacial air gaps increase thermal resistance significantly. Recommended TIMs include silicone-based greases or phase-change pads rated for >150°C continuous operation.
What does the "H" suffix in HERF1001GH signify?
The "H" suffix in HERF1001GH explicitly denotes AEC-Q101 qualification per the manufacturer's ordering code convention. This distinguishes it from the non-automotive HERF1001G variant. All HERF1001GH units undergo full AEC-Q101 stress testing - including temperature cycling, high-temperature reverse bias, and unbiased highly accelerated stress testing - and are traceable to certified lots.
Can HERF1001GH be used in parallel configurations to increase current handling?
HERF1001GH supports parallel operation due to its matched dual-die structure and low thermal resistance, but external current-sharing resistors (typically 10–50 mΩ per leg) are recommended to balance conduction between anodes. Parallel use increases total IF capability beyond 10A, provided thermal design accommodates cumulative power dissipation and layout symmetry minimizes inductance imbalance.
HERF1001GH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-3 Full Pack, Isolated Tab
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io) (per Diode):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 50 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AB
HERF1001GH FAQ
1.How can I place an order for HERF1001GH through Aetrix?
Please submit a Request for Quotation (RFQ) for HERF1001GH on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for HERF1001GH reliable?
The price and inventory of HERF1001GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HERF1001GH is usually 5 days.
3.What payment methods are accepted for HERF1001GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HERF1001GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HERF1001GH?
HERF1001GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HERF1001GH order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for HERF1001GH?
For technical support, including HERF1001GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HERF1001GH requirements.
6.How does Aetrix verify that HERF1001GH is sourced from the original manufacturer or authorized distributors?
All HERF1001GH products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that HERF1001GH meets industry standards.
7.What is the process for return or replacement of HERF1001GH?
All HERF1001GH units undergo pre-shipment inspection (PSI). If there is an issue with HERF1001GH, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The HERF1001GH part is unused and in its original packaging.
Return procedure for HERF1001GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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