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Taiwan Semiconductor Corporation HERA803GH
- Part No.:
- HERA803GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
HERA803GH.pdf
- Description:
- 50NS, 8A, 200V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:9,230
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Product details
Overview
HERA803GH from Taiwan Semiconductor is an AEC-Q101-qualified, single-die, glass-passivated high-efficiency rectifier in TO-220AC package, rated for 8A average forward current, 200V repetitive peak reverse voltage, and 150A surge current, used in automotive DC-DC converters and industrial switching inverters.
For engineers reviewing the HERA803GH datasheet, HERA803GH pinout, HERA803GH application, or HERA803GH equivalent, key selection criteria include its 200V VRRM, 1.0V typical forward voltage at 8A/25°C, 50ns reverse recovery time, junction-to-case thermal resistance of 2°C/W, and AEC-Q101 qualification for under-hood automotive use.
Technical Context
This device operates as a unidirectional power rectifier with a single PN junction, optimized for high-frequency switching applications where low conduction loss and fast recovery are critical. Its glass passivation ensures stable performance across temperature extremes, and the TO-220AC package enables direct heatsink mounting with ≤0.56 N·m torque.
The HERA803GH delivers 200V blocking capability with 10µA max reverse leakage at 25°C and 400µA at 125°C, and exhibits 65pF junction capacitance at 1MHz/4V - parameters confirmed for the HERA803G variant group per official electrical specifications table.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - maximum repetitive reverse voltage the device blocks reliably in circuit |
| IF | 8 A - continuous average forward current rating at case temperature ≤75°C |
| IFSM | 150 A - non-repetitive surge current handling (8.3ms half-sine) without failure |
| VF @ 8A, 25°C | 1.0 V typical - low conduction loss enabling higher efficiency in power stages |
| trr | 50 ns max - fast reverse recovery minimizes switching losses in SMPS |
| RθJC | 2 °C/W - thermal resistance from junction to case supports effective heatsinking |
| TJ max | 150 °C - maximum allowable junction temperature for reliable long-term operation |
Pinout & Package
Package: TO-220AC - three-terminal, through-hole, single-die rectifier package with isolated tab (cathode-connected), matte tin-plated leads, UL 94V-0 molding compound, and polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward conduction | Connected to lower-potential side (e.g., switch node in buck converter) |
| Cathode | Output terminal for forward conduction | Connected to output rail; electrically tied to metal tab for thermal path |
| Tab (Case) | Thermal and electrical connection point | Internally connected to cathode; must be electrically isolated from heatsink unless intended as common cathode node |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications including engine control and ADAS power supplies |
| Glass passivated junction | Enhances moisture resistance and long-term reliability in harsh environments |
| Low VF (1.0V typ @ 8A) | Reduces conduction losses by ~15% vs. standard rectifiers with 1.15V VF |
| Fast trr (50 ns max) | Enables operation up to ~200 kHz in hard-switched topologies without excessive ringing |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU requirements |
Applications
| Automotive DC-DC Converters | Industrial Switching Inverters |
|---|---|
Use Scenario: Step-down conversion in 12V/48V dual-battery systems for ADAS ECUs and infotainment modules. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant buck topology. Use Value: 200V VRRM and 150A IFSM support transient load dumps; AEC-Q101 ensures qualification for automotive-grade supply rails. | Use Scenario: Output stage in 3-phase motor drive inverters for HVAC and pump controls. IC Role / Device Role / Timing Role: Freewheeling diode across IGBTs in inverter legs. Use Value: 50ns trr limits commutation losses during high-frequency PWM; TO-220AC tab enables direct heatsink mounting for thermal management. |
| Server Power Supplies | Renewable Energy Converters |
Use Scenario: Secondary-side rectification in telecom-grade 48V intermediate bus converters. IC Role / Device Role / Timing Role: High-current freewheeling path during synchronous rectifier dead-time. Use Value: 8A IF rating and 2°C/W RθJC allow sustained operation at >70°C case temperature without derating. | Use Scenario: MPPT charge controller output stage in solar microinverters. IC Role / Device Role / Timing Role: Unidirectional energy transfer from DC link to battery bank. Use Value: 10µA max IR at 25°C ensures minimal standby leakage in off-grid systems with long idle periods. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH8R02DJF | Same TO-220AC package, 200V VRRM, but 1.15V VF typ @ 8A and 60ns trr; not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial SMPS only | Select if AEC-Q101 is not required and cost sensitivity outweighs 0.15V VF penalty |
| ON Semi MUR820G | TO-220AC, 200V VRRM, 1.25V VF typ @ 8A, 75ns trr; RoHS-compliant but no AEC-Q101 data published | Higher conduction and switching losses; limited validation for automotive ambient conditions | Prefer for legacy designs where footprint compatibility is prioritized over efficiency gains |
Compared with STTH8R02DJF and MUR820G, the HERA803GH offers lower forward voltage and faster recovery while being AEC-Q101 qualified - making it the optimal choice for new automotive power designs requiring both efficiency and qualification compliance.
Availability
HERA803GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switching inverters, and renewable energy converters requiring stable component supply with full traceability and lifecycle support.
Supply support for HERA803GH 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, serving global automotive, industrial, and computing markets since 1979.
The HERA80xG series was designed specifically for high-reliability, high-efficiency power rectification in automotive and industrial switching power supplies - emphasizing AEC-Q101 qualification, low VF, and robust thermal performance in TO-220AC.
FAQ
What is the maximum junction temperature rating for HERA803GH?
The HERA803GH has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings table in the official TSC datasheet Version J2103. This allows operation in high-ambient environments such as engine compartments when properly heatsinked. Derating curves confirm usable current capacity down to 0A at 150°C case temperature. HERA803GH must not exceed this limit to maintain reliability and AEC-Q101 compliance.
Is HERA803GH pin-compatible with other TO-220AC rectifiers like MUR820G?
Yes, HERA803GH uses the standard TO-220AC outline with anode, cathode, and isolated tab terminals in identical physical positions per JEDEC TO-220AC specification. Mounting hole spacing, lead pitch, and tab dimensions match industry-standard TO-220AC rectifiers including MUR820G and STTH8R02DJF. However, electrical behavior differs - always verify layout thermal relief and isolation per HERA803GH's cathode-tab connection requirement.
What does the 'H' suffix in HERA803GH indicate?
The 'H' suffix in HERA803GH explicitly denotes AEC-Q101 qualification, as confirmed in TSC's ordering information table (Version J2103). This means the device has undergone stress testing for automotive-grade reliability - including temperature cycling, humidity bias, and mechanical shock - and is approved for use in automotive power electronics. Non-H variants (e.g., HERA803G) lack this qualification and are intended for commercial/industrial applications only.
What is the typical forward voltage of HERA803GH at 8A and 125°C?
The datasheet specifies VF = 1.0V typical at IF = 8A and TJ = 25°C. While no explicit 125°C value is given, characteristic curves show forward voltage increases ~2.2mV/°C above 25°C. Thus, HERA803GH VF at 125°C is approximately 1.22V - consistent with silicon diode physics and confirmed by TSC's Fig.4 Typical Forward Characteristics curve for HERA801G–805G.
Does HERA803GH require a heatsink in 8A continuous operation?
Yes, HERA803GH requires a heatsink for 8A continuous operation. With RθJC = 2°C/W and PD ≈ 8A × 1.0V = 8W at 25°C, junction temperature rise would be 16°C above case - but real-world case temperature rises significantly without heatsinking. The forward current derating curve (Fig.1) shows 8A is only sustainable below ~75°C case temperature. A heatsink maintaining case ≤75°C is mandatory for full-rated current, especially in enclosed or high-ambient environments.
HERA803GH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-2
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 200 V
- Capacitance @ Vr, F:
- 65pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
HERA803GH FAQ
1.How can I place an order for HERA803GH through Aetrix?
Please submit a Request for Quotation (RFQ) for HERA803GH 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 HERA803GH reliable?
The price and inventory of HERA803GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HERA803GH is usually 5 days.
3.What payment methods are accepted for HERA803GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HERA803GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HERA803GH?
HERA803GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HERA803GH 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 HERA803GH?
For technical support, including HERA803GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HERA803GH requirements.
6.How does Aetrix verify that HERA803GH is sourced from the original manufacturer or authorized distributors?
All HERA803GH 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 HERA803GH meets industry standards.
7.What is the process for return or replacement of HERA803GH?
All HERA803GH units undergo pre-shipment inspection (PSI). If there is an issue with HERA803GH, 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 HERA803GH part is unused and in its original packaging.
Return procedure for HERA803GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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