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Taiwan Semiconductor Corporation HERA801GH
- Part No.:
- HERA801GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
HERA801GH.pdf
- Description:
- 50NS, 8A, 50V, HIGH EFFICIENT RE
- Quantity:
- Payment:
- Shipping:
Inventory:7,214
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Product details
Overview
HERA801GH from Taiwan Semiconductor is an AEC-Q101-qualified, glass-passivated single-die silicon rectifier in TO-220AC package, rated for 8 A average forward current, 50 V repetitive peak reverse voltage, and 150 A non-repetitive surge current - used in automotive-grade DC-DC converters and freewheeling paths.
For engineers reviewing the HERA801GH datasheet, HERA801GH pinout, HERA801GH application, or HERA801GH equivalent, key selection criteria include its 1.0 V max forward voltage at 8 A/25°C, 2 °C/W junction-to-case thermal resistance, 65 pF junction capacitance, 50 ns reverse recovery time, and AEC-Q101 qualification for under-hood power conversion.
Technical Context
This device is a standard single-anode, single-cathode silicon PN junction rectifier optimized for high-efficiency switching-mode power supplies. Its glass passivation ensures stable junction performance across temperature and humidity stress.
The HERA801GH operates with a maximum junction temperature of 150°C and supports continuous conduction mode (CCM) and discontinuous conduction mode (DCM) freewheeling in buck, boost, and flyback topologies where low VF and fast trr reduce conduction and switching losses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (AV) | 8 A - supports sustained output current in compact 12–48 V DC-DC stages without forced air cooling |
| VRRM | 50 V - suitable for low-voltage automotive subsystems (e.g., body control modules, ADAS sensors) |
| VF (max) | 1.0 V @ 8 A, 25°C - reduces forward conduction loss to ≤8 W per device at full load |
| IFSM | 150 A (8.3 ms half-sine) - withstands inrush and fault currents in 12 V battery-fed systems |
| trr | 50 ns - limits reverse recovery charge (Qrr) to minimize switching loss and EMI in 100–500 kHz converters |
| RθJC | 2 °C/W - enables direct heatsink mounting for thermal management in space-constrained enclosures |
| CJ | 65 pF @ 1 MHz, 4 V - contributes to low capacitive coupling in high-dV/dt gate-drive isolation circuits |
Pinout & Package
TO-220AC package: single-ended, 2-pin through-hole outline with isolated tab (cathode-connected), matte tin-plated leads compliant with J-STD-002 solderability, UL 94V-0 molding compound, and 0.56 N·m maximum mounting torque.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input current entry point | Connected to switch node or transformer secondary; must handle full peak current and dI/dt transients |
| Cathode (Tab + Lead 2) | Output current exit / heat path | Electrically and thermally tied to heatsink; requires insulated mounting hardware if floating ground reference |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements including temperature cycling, HTRB, and HTGB |
| Glass passivated junction | Prevents moisture-induced leakage and surface degradation in humid under-hood environments |
| Low VF (≤1.0 V) | Reduces conduction loss by ~15% vs. legacy 1.15 V rectifiers at 8 A, improving system efficiency by 0.5–1.2% |
| High IFSM (150 A) | Survives cold-crank and jump-start surges in 12 V vehicle electrical systems without failure |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU ELV Directive for end-of-life recyclability and flame safety |
Applications
| Automotive Body Control Module (BCM) | Industrial 24 V DC-DC Converter |
|---|---|
Use Scenario: Regulating 12 V battery input to stable 5 V/3.3 V rails for microcontrollers, CAN transceivers, and LED drivers. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck converter output stage. Use Value: HERA801GH's 1.0 V VF and 50 ns trr reduce power loss and EMI during light-load transitions, extending BCM operating life. | Use Scenario: Isolated flyback supply powering PLC I/O modules in factory automation cabinets. IC Role / Device Role / Timing Role: Secondary-side rectifier delivering up to 8 A at 24 V output. Use Value: HERA801GH's 2 °C/W RθJC allows direct heatsink mounting without thermal pads, simplifying mechanical design and reducing BOM cost. |
| LED Headlamp Driver | Telecom Power Shelf Rectification |
Use Scenario: High-brightness LED array driver with PWM dimming and overtemperature protection. IC Role / Device Role / Timing Role: Output rectifier in boost-derived constant-current stage. Use Value: HERA801GH's 150 A IFSM handles lamp short-circuit events without latch-up, supporting ASIL-B functional safety compliance. | Use Scenario: 48 V intermediate bus rectification feeding multiple point-of-load regulators in telecom base station power shelves. IC Role / Device Role / Timing Role: Primary output rectifier in dual-active-bridge or phase-shifted full-bridge topology. Use Value: HERA801GH's 65 pF CJ minimizes capacitive coupling into sensitive analog monitoring circuits, improving voltage regulation accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH8R06D | 600 V VRRM, 1.7 V VF @ 8 A, 75 ns trr, TO-220AC | Higher voltage rating but higher VF and slower recovery - less efficient in 12–24 V systems | Choose STTH8R06D only when system requires >100 V reverse blocking margin |
| ON Semi MUR820G | 200 V VRRM, 1.25 V VF @ 8 A, 60 ns trr, TO-220AC | Higher VF increases conduction loss; not AEC-Q101 qualified | Select MUR820G for industrial-only use where automotive qualification is unnecessary |
Compared with STTH8R06D and MUR820G, the HERA801GH delivers the lowest VF (1.0 V) and fastest trr (50 ns) at 50 V rating while meeting AEC-Q101 - making it optimal for efficiency-critical, automotive-qualified 12 V power stages.
Availability
HERA801GH is available at Aetrix Electronics and suitable for automotive body electronics, industrial 24 V DC-DC converters, LED headlamp drivers, and telecom power shelf rectification requiring stable component supply and long-term lifecycle support.
Supply support for HERA801GH 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 Taiwanese semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs for automotive and industrial markets.
The HERA series was designed specifically for high-reliability, high-efficiency rectification in automotive power conversion systems - emphasizing AEC-Q101 compliance, thermal robustness, and low-loss operation in constrained spaces.
FAQ
What is the maximum junction temperature rating for HERA801GH?
The HERA801GH has a maximum junction temperature (TJ MAX) of +150°C, verified per JEDEC JESD22-A108. This rating enables operation in under-hood automotive environments where ambient temperatures reach 125°C, provided thermal design maintains junction temperature below this limit. The device's 2 °C/W RθJC supports reliable thermal transfer to heatsinks in HERA801GH-based designs.
Is HERA801GH pin-compatible with other TO-220AC rectifiers?
Yes - HERA801GH uses the industry-standard TO-220AC 2-pin outline with anode on lead 1 and cathode on the tab/lead 2. It shares identical mechanical footprint, mounting hole position, and lead pitch with STTH8R06D, MUR820G, and BYV26E, enabling drop-in replacement in existing layouts where voltage and thermal specs align.
Does HERA801GH meet AEC-Q101 requirements for automotive use?
Yes - the "H" suffix in HERA801GH explicitly denotes AEC-Q101 qualification. TSC's official documentation confirms full compliance with stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), temperature cycling, and unbiased highly accelerated stress testing (UHAST), making HERA801GH suitable for automotive powertrain and chassis applications.
What is the typical reverse recovery time (trr) of HERA801GH?
The HERA801GH has a maximum reverse recovery time (trr) of 50 ns under test conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This fast recovery characteristic minimizes switching loss and ringing in high-frequency DC-DC converters, directly contributing to improved efficiency and reduced EMI in HERA801GH-based power stages.
Can HERA801GH be used in freewheeling applications?
Yes - HERA801GH is explicitly recommended for freewheeling applications in switching-mode converters and inverters. Its low VF (≤1.0 V), high IFSM (150 A), and fast trr (50 ns) make it ideal for clamping inductive kickback in buck, boost, and flyback topologies, especially in automotive BCMs and LED drivers where reliability under transient overload is critical for HERA801GH deployment.
HERA801GH 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):
- 50 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 @ 50 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
HERA801GH FAQ
1.How can I place an order for HERA801GH through Aetrix?
Please submit a Request for Quotation (RFQ) for HERA801GH 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 HERA801GH reliable?
The price and inventory of HERA801GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HERA801GH is usually 5 days.
3.What payment methods are accepted for HERA801GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HERA801GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HERA801GH?
HERA801GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HERA801GH 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 HERA801GH?
For technical support, including HERA801GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HERA801GH requirements.
6.How does Aetrix verify that HERA801GH is sourced from the original manufacturer or authorized distributors?
All HERA801GH 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 HERA801GH meets industry standards.
7.What is the process for return or replacement of HERA801GH?
All HERA801GH units undergo pre-shipment inspection (PSI). If there is an issue with HERA801GH, 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 HERA801GH part is unused and in its original packaging.
Return procedure for HERA801GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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