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Taiwan Semiconductor Corporation HERAF1003GH
- Part No.:
- HERAF1003GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
HERAF1003GH.pdf
- Description:
- 50NS, 10A, 200V, HIGH EFFICIENT
- Quantity:
- Payment:
- Shipping:
Inventory:8,784
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Product details
Overview
HERAF1003GH from Taiwan Semiconductor is a high-efficiency, AEC-Q101-qualified single-die fast recovery rectifier in ITO-220AC package, rated for 200 V repetitive peak reverse voltage (VRRM), 10 A average forward current (IF), and 150 A surge current (IFSM). It delivers low forward voltage (VF ≤ 1.0 V at 10 A, 25°C) and fast reverse recovery (trr ≤ 50 ns), making it suitable for automotive-grade DC/DC converters and switching inverters.
For engineers reviewing the HERAF1003GH datasheet, HERAF1003GH pinout, HERAF1003GH application, or HERAF1003GH equivalent, key selection criteria include its AEC-Q101 qualification, 200 V VRRM rating, 1.0 V VF max at 10 A, 50 ns trr, and ITO-220AC thermal performance (RθJC = 2°C/W).
Technical Context
This device is a glass-passivated, single-die silicon rectifier optimized for high-reliability power conversion. Its junction-to-case thermal resistance of 2°C/W enables efficient heat dissipation when mounted to heatsinks, and its 150°C maximum junction temperature supports operation in under-hood automotive environments.
The HERAF1003GH features low reverse leakage (IR ≤ 10 µA at 25°C, ≤ 400 µA at 125°C), 80 pF junction capacitance at 1 MHz/4 V, and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance standards - all confirmed for the HERAF1003G/H variant group.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse blocking voltage; defines usable input voltage range in flyback or boost topologies. |
| IF | 10 A - Continuous average forward current; determines steady-state power handling without derating below 75°C case temp. |
| IFSM | 150 A - Non-repetitive surge capability; withstands inrush or fault currents in SMPS startup or short-circuit events. |
| VF | ≤1.0 V @ 10 A, 25°C - Low conduction loss; reduces power dissipation and improves efficiency in high-current paths. |
| trr | ≤50 ns - Fast recovery time; minimizes switching losses and EMI in high-frequency (>100 kHz) converters. |
| RθJC | 2°C/W - Thermal resistance from junction to case; enables predictable heatsink sizing for automotive ambient up to 125°C. |
| AEC-Q101 | Qualified - Validated for automotive reliability including temperature cycling, HTRB, and HTGB; required for under-hood use. |
Pinout & Package
Package: ITO-220AC - Insulated TO-220 variant with isolated metal tab (electrically floating), matte tin-plated leads, UL 94V-0 molding compound, and 1.70 g mass. Mounting torque ≤ 0.56 N·m.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input current entry point | Connected to high-side switch node or transformer secondary; must handle full IF and IFSM. |
| Cathode (Lead 2) | Output current exit point | Typically tied to ground or low-side return; carries same current as anode with polarity-defined conduction. |
| Case / Tab | Electrically isolated thermal path | Provides mechanical mounting and thermal conduction to heatsink; no electrical connection to internal die. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood applications including temperature cycling, high-temp reverse bias, and humidity testing. |
| Glass passivated junction | Enhances moisture resistance and long-term stability of reverse leakage and breakdown characteristics. |
| Low VF (≤1.0 V @ 10 A) | Reduces conduction loss by ~15% vs. standard FRDs with VF ≥ 1.15 V, improving system efficiency at 12–48 V DC/DC stages. |
| Fast trr (≤50 ns) | Enables operation up to 300 kHz switching frequency with minimal reverse recovery loss and diode-induced ringing. |
| UL Recognized (E-326243) | Confirms compliance with safety standards for end-equipment certification in industrial and automotive power supplies. |
Applications
| Automotive DC/DC Converters | Industrial Switching Inverters |
|---|---|
Use Scenario: 12 V to 48 V bidirectional DC/DC converter in 48 V mild-hybrid vehicles. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck-boost stage, conducting during low-side switch off-time. Use Value: AEC-Q101 qualification and 150 A IFSM ensure robustness against load dump transients and cold-crank conditions. | Use Scenario: Output rectification in 3 kW industrial UPS inverter with 100 kHz PWM switching. IC Role / Device Role / Timing Role: High-frequency output rectifier replacing slower standard recovery diodes. Use Value: 50 ns trr and 2°C/W RθJC reduce switching losses and thermal stress, enabling smaller heatsinks. |
| Solar Microinverters | Server PSU Secondary Side |
Use Scenario: Isolated DC/DC stage in residential solar microinverter converting panel DC to grid-synchronized AC. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement in LLC resonant converter. Use Value: 200 V VRRM and 10 A IF support 60–100 V PV string inputs with margin; low VF improves light-load efficiency. | Use Scenario: +12 V output rectification in 1.5 kW server power supply with digital control loop. IC Role / Device Role / Timing Role: Main output freewheeling diode in multiphase VRM or active clamp forward topology. Use Value: UL recognition and RoHS/halogen-free compliance meet datacenter safety and environmental requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH10R06DJF | 600 V VRRM, 10 A IF, VF = 1.15 V @ 10 A, trr = 35 ns, TO-220AC package | Higher voltage rating but higher VF; not AEC-Q101 qualified | Preferred for industrial 400 V bus applications where lower trr outweighs VF penalty and automotive qualification is unnecessary. |
| VS-10EWH06-M3 | 600 V VRRM, 10 A IF, VF = 0.95 V @ 10 A, trr = 60 ns, TO-220AC package, AEC-Q101 qualified | Same qualification and package; higher VRRM but slightly slower recovery | Used where 600 V blocking is needed (e.g., 3-phase PFC front-end), accepting marginal trr increase for broader voltage coverage. |
Compared with STTH10R06DJF and VS-10EWH06-M3, the HERAF1003GH offers optimal balance of 200 V rating, ultra-low VF, AEC-Q101 compliance, and fast trr - making it the preferred choice for cost- and efficiency-sensitive 12–48 V automotive and industrial DC/DC designs.
Availability
HERAF1003GH is available at Aetrix Electronics and suitable for automotive power modules, industrial switching inverters, and solar microinverter designs requiring stable component supply, AEC-Q101 validation, and consistent thermal performance.
Supply support for HERAF1003GH 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 discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power devices, rectifiers, TVS diodes, and MOSFETs.
The HERAF series targets high-reliability power conversion applications, with design emphasis on automotive-grade robustness, low-loss conduction, and fast switching performance in compact ITO-220AC packaging.
FAQ
What is the maximum junction temperature rating for HERAF1003GH?
The HERAF1003GH has a maximum junction temperature (TJ) rating of +150°C, verified per AEC-Q101 stress testing. This allows reliable operation in under-hood automotive environments where case temperatures may reach 125°C, provided thermal design maintains junction temperature within limit using the specified RθJC = 2°C/W path.
Is HERAF1003GH pin-compatible with standard TO-220AC rectifiers?
Yes, HERAF1003GH uses the ITO-220AC package - a mechanically identical outline to TO-220AC with electrically isolated tab. Pin 1 (anode) and Pin 2 (cathode) match standard TO-220AC rectifier pinout, enabling drop-in replacement in existing layouts without PCB modification.
What does the 'H' suffix in HERAF1003GH indicate?
The 'H' suffix in HERAF1003GH explicitly denotes AEC-Q101 qualification. Unlike the base HERAF1003G, the HERAF1003GH variant has undergone full automotive reliability stress testing per AEC-Q101 Rev D, including HTGB, HTRB, and temperature cycling - confirming suitability for automotive power systems.
How does the forward voltage of HERAF1003GH compare to HERAF1005GH?
HERAF1003GH specifies VF ≤ 1.0 V at 10 A and 25°C, while HERAF1005GH (400 V VRRM) specifies VF ≤ 1.3 V under identical conditions. The lower voltage rating of HERAF1003GH enables reduced conduction loss, making it more efficient in 200 V-class applications where higher blocking is unnecessary.
Does HERAF1003GH require a heatsink in 10 A continuous operation?
Yes - at 10 A continuous current and 25°C ambient, HERAF1003GH dissipates ~10 W (based on VF ≈ 1.0 V). With RθJC = 2°C/W and typical RθCS + RθSA > 1.5°C/W, a heatsink is required to maintain TJ ≤ 150°C. Derating curves in the datasheet confirm ≥7 A average current without forced air above 75°C case temperature.
HERAF1003GH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-2 Full Pack
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 200 V
- Capacitance @ Vr, F:
- 80pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
HERAF1003GH FAQ
1.How can I place an order for HERAF1003GH through Aetrix?
Please submit a Request for Quotation (RFQ) for HERAF1003GH 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 HERAF1003GH reliable?
The price and inventory of HERAF1003GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HERAF1003GH is usually 5 days.
3.What payment methods are accepted for HERAF1003GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HERAF1003GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HERAF1003GH?
HERAF1003GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HERAF1003GH 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 HERAF1003GH?
For technical support, including HERAF1003GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HERAF1003GH requirements.
6.How does Aetrix verify that HERAF1003GH is sourced from the original manufacturer or authorized distributors?
All HERAF1003GH 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 HERAF1003GH meets industry standards.
7.What is the process for return or replacement of HERAF1003GH?
All HERAF1003GH units undergo pre-shipment inspection (PSI). If there is an issue with HERAF1003GH, 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 HERAF1003GH part is unused and in its original packaging.
Return procedure for HERAF1003GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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