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Taiwan Semiconductor Corporation HERA802GH
- Part No.:
- HERA802GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
HERA802GH.pdf
- Description:
- 50NS, 8A, 100V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:3,589
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Product details
Overview
HERA802GH from Taiwan Semiconductor is an AEC-Q101-qualified, glass-passivated, single-die high-efficiency rectifier in TO-220AC package, rated for 8 A average forward current, 100 V repetitive peak reverse voltage, and 150 A surge current, used in automotive-grade DC-DC converters and switching inverters.
For engineers reviewing the HERA802GH datasheet, HERA802GH pinout, HERA802GH application, or HERA802GH equivalent, key selection criteria include its 100 V VRRM, 1.0 V max forward voltage at 8 A/25°C, 50 ns reverse recovery time, TO-220AC thermal resistance of 2 °C/W, and AEC-Q101 qualification for under-hood automotive power systems.
Technical Context
This device is a unidirectional silicon rectifier diode with planar junction construction and glass passivation for enhanced moisture and contamination resistance. Its low VF (≤1.0 V) and fast trr (≤50 ns) support high-frequency switching topologies up to several hundred kHz.
The TO-220AC package provides direct case-to-heatsink thermal conduction with RθJC = 2 °C/W and supports mounting torque up to 0.56 N·m. It operates across -55°C to +150°C junction temperature range and meets JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum non-repetitive reverse blocking voltage before breakdown |
| IF | 8 A - Continuous average forward current at TC = 100°C |
| IFSM | 150 A - Peak non-repetitive surge current (8.3 ms half-sine) |
| VF @ 8 A, 25°C | ≤1.0 V - Low conduction loss enabling >95% efficiency in 12 V–48 V DC-DC stages |
| trr | ≤50 ns - Fast recovery minimizes switching losses in hard-switched SMPS |
| RθJC | 2 °C/W - Enables 75 W dissipation with 150°C max junction temp and 100°C heatsink |
| AEC-Q101 | Qualified - Validated for automotive powertrain and chassis applications per stress test requirements |
Pinout & Package
TO-220AC package: 3-lead, single-diode configuration with anode (lead 1), cathode (lead 2), and electrically connected tab (cathode). Mounting tab serves as primary heat path and electrical cathode terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Lead 1 | Anode | Input terminal for forward conduction; connects to source-side of switching node |
| Lead 2 | Cathode | Output terminal for forward conduction; ties to output rail or freewheeling path |
| Tab (Case) | Cathode | Electrically tied to lead 2; must be isolated from heatsink unless circuit reference permits common-cathode mounting |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood environments including temperature cycling, HTRB, and ESD testing |
| Glass-passivated junction | Prevents surface leakage and degradation under humid or contaminated conditions |
| Low VF (≤1.0 V @ 8 A) | Reduces conduction loss by ≥15% vs. standard FR-type rectifiers at same rating |
| Fast trr (≤50 ns) | Enables operation in 200–500 kHz switching converters without excessive turn-off loss |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and automotive ELV directive for end-of-life recyclability |
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: HERA802GH serves as synchronous rectifier or freewheeling diode in phase-shifted full-bridge topology. Use Value: Its 100 V VRRM and 1.0 V VF ensure safe operation during transients and minimize conduction loss at 8 A load. | Use Scenario: Output rectification stage in 3 kW industrial UPS inverter with 200 kHz PWM switching. IC Role / Device Role / Timing Role: HERA802GH functions as output freewheeling diode in LLC resonant converter secondary side. Use Value: 50 ns trr prevents reverse recovery tail current, reducing EMI and MOSFET switching stress. |
| Freewheeling in Motor Drives | Telecom Power Rectification |
Use Scenario: Freewheeling path for brushed DC motor control in automotive HVAC blower modules. IC Role / Device Role / Timing Role: HERA802GH provides low-loss current recirculation during PWM off-time. Use Value: Glass passivation ensures long-term reliability under vibration and thermal cycling in engine bay mounting. | Use Scenario: Secondary-side rectifier in 48 V telecom rectifier module with distributed power architecture. IC Role / Device Role / Timing Role: HERA802GH delivers regulated 12 V output from center-tapped transformer winding. Use Value: TO-220AC package enables direct bolt-down heatsinking for continuous 8 A operation at 60°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH8L06W | 600 V VRRM, 1.75 V VF @ 8 A, 75 ns trr, TO-220AC | Higher voltage rating but higher conduction and switching loss | Select when system requires >100 V reverse margin; not drop-in due to VF/trr trade-off |
| VS-8EWH06FN-M3 | 600 V VRRM, 1.25 V VF @ 8 A, 55 ns trr, TO-220AC | Higher VRRM and slightly higher VF; same package footprint | Acceptable alternative if 600 V blocking is required; verify thermal design with +0.25 V VF penalty |
Compared with STTH8L06W and VS-8EWH06FN-M3, HERA802GH offers lower forward voltage and faster recovery at 100 V rating-making it optimal for cost- and efficiency-sensitive 12–48 V automotive and industrial converters where higher VRRM is unnecessary.
Availability
HERA802GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switching inverters, and telecom power rectification requiring stable component supply with AEC-Q101 assurance and TO-220AC mechanical compatibility.
Supply support for HERA802GH 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 automotive, industrial, and consumer markets since 1979.
The HERA series targets high-reliability power conversion applications, emphasizing AEC-Q101 qualification, glass passivation, and thermally optimized TO-220AC packaging for demanding automotive and industrial environments.
FAQ
What is the maximum junction temperature rating for HERA802GH?
The HERA802GH has a maximum junction temperature (TJ) of +150°C, validated across its full operating range from -55°C to +150°C. This rating supports use in under-hood automotive locations and enclosed industrial enclosures where ambient temperatures exceed 100°C, provided thermal design maintains case temperature within limits using the specified RθJC = 2 °C/W path.
Is HERA802GH pin-compatible with other TO-220AC rectifiers?
Yes, HERA802GH uses the standard TO-220AC outline with anode (lead 1), cathode (lead 2), and cathode-connected tab-matching industry-standard pinout for single-diode TO-220AC devices. Mechanical mounting holes, lead spacing, and tab dimensions comply with JEDEC TO-220AC specifications, enabling direct replacement in existing layouts designed for equivalent packages.
Does HERA802GH meet automotive qualification standards?
Yes, the "H" suffix in HERA802GH explicitly denotes AEC-Q101 qualification. Taiwan Semiconductor's official documentation confirms full compliance with AEC-Q101 stress tests-including HTGB, HTRB, TC, UHAST, and ESD-making HERA802GH suitable for automotive powertrain, body electronics, and ADAS subsystems where component reliability is critical.
What is the typical forward voltage of HERA802GH at 8 A and 125°C?
The datasheet specifies VF ≤1.0 V at 8 A and 25°C. While no explicit value is given at 125°C, the typical forward voltage increases ~2 mV/°C for silicon rectifiers; thus, HERA802GH exhibits approximately 1.18 V at 8 A and 125°C. This remains competitive versus alternatives and supports thermal stability in high-ambient designs.
How does the reverse recovery time of HERA802GH impact EMI in switching converters?
With trr ≤50 ns, HERA802GH minimizes reverse recovery charge (Qrr) and associated current spikes during turn-off. This directly reduces high-frequency ringing and conducted EMI in 200–500 kHz SMPS designs-lowering filter component count and easing EMC compliance compared to slower 100+ ns rectifiers like general-purpose FR series.
HERA802GH 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):
- 100 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 @ 100 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
HERA802GH FAQ
1.How can I place an order for HERA802GH through Aetrix?
Please submit a Request for Quotation (RFQ) for HERA802GH 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 HERA802GH reliable?
The price and inventory of HERA802GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HERA802GH is usually 5 days.
3.What payment methods are accepted for HERA802GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HERA802GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HERA802GH?
HERA802GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HERA802GH 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 HERA802GH?
For technical support, including HERA802GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HERA802GH requirements.
6.How does Aetrix verify that HERA802GH is sourced from the original manufacturer or authorized distributors?
All HERA802GH 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 HERA802GH meets industry standards.
7.What is the process for return or replacement of HERA802GH?
All HERA802GH units undergo pre-shipment inspection (PSI). If there is an issue with HERA802GH, 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 HERA802GH part is unused and in its original packaging.
Return procedure for HERA802GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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