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Taiwan Semiconductor Corporation HERAF801GH
- Part No.:
- HERAF801GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
HERAF801GH.pdf
- Description:
- 50NS, 8A, 50V, HIGH EFFICIENT RE
- Quantity:
- Payment:
- Shipping:
Inventory:5,329
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Product details
Overview
HERAF801GH from Taiwan Semiconductor is an AEC-Q101-qualified, glass-passivated, single-die high-efficiency rectifier in ITO-220AC package, rated for 8A average forward current, 50V repetitive peak reverse voltage, and 150A surge capability - used in automotive DC-DC converters requiring robust freewheeling diodes.
For engineers reviewing the HERAF801GH datasheet, HERAF801GH pinout, HERAF801GH application, or HERAF801GH equivalent, key selection criteria include its 1.0V max forward voltage at 8A/25°C, 2°C/W junction-to-case thermal resistance, 80pF junction capacitance, 50ns reverse recovery time, and UL recognition (E-326243) for safety-critical power conversion designs.
Technical Context
This device implements a fast-recovery, low-VF silicon PN junction rectifier optimized for switching-mode power supplies. Its 50V VRRM, 150A IFSM, and 50ns trr support high-frequency operation with minimal conduction and switching losses in automotive-grade DC-DC stages.
The ITO-220AC package provides direct metal heatsinking via the cathode tab, enabling efficient thermal transfer at up to 150°C junction temperature. Glass passivation ensures stable performance under humidity and thermal cycling per AEC-Q101 stress requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum non-repetitive reverse blocking voltage before breakdown |
| IF | 8 A - Continuous average forward current at case temperature ≤75°C |
| IFSM | 150 A - Peak non-repetitive surge current (8.3ms half-sine), supports inrush tolerance |
| VF @ 8A, 25°C | ≤1.0 V - Low conduction loss reduces power dissipation in high-current paths |
| trr | ≤50 ns - Fast recovery minimizes switching losses in 100–500 kHz SMPS topologies |
| RθJC | 2 °C/W - Enables direct heatsink mounting for thermal management without isolation pads |
| Junction Temp | −55°C to +150°C - Full operational range meets automotive under-hood ambient requirements |
Pinout & Package
ITO-220AC package with isolated anode/cathode terminals and electrically active metal tab serving as cathode connection. Mounting torque limited to 0.56 N·m; matte tin-plated leads comply with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input terminal for forward current flow | Solderable lead; connects to input side of converter or inductive load |
| Cathode (Tab) | Output terminal and thermal path | Electrically active metal tab - must be mounted to heatsink and referenced as circuit ground/common return |
| Cathode (Lead 2) | Secondary cathode connection | Optional auxiliary connection; not required if tab is properly heatsinked |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, ADAS power rails, and body electronics |
| Glass-passivated junction | Prevents moisture ingress and surface leakage under high humidity and thermal stress |
| UL Recognition E-326243 | Meets safety standards for end-equipment certification in industrial and automotive systems |
| Halogen-free construction | Complies with IEC 61249-2-21, supporting RoHS and ELV directive compliance |
| JESD201 Class 2 whisker resistance | Ensures long-term reliability of tin-plated leads in high-temperature storage and operation |
Applications
| Automotive DC-DC Converters | Industrial Switch-Mode Inverters |
|---|---|
Use Scenario: Step-down conversion in 12V/48V dual-battery automotive architectures powering infotainment and ADAS ECUs. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck converter output stage, handling continuous 8A load current. Use Value: 1.0V VF and 2°C/W RθJC reduce thermal rise and improve efficiency over legacy rectifiers by ≥3% at full load. | Use Scenario: Output rectification in 3kW industrial UPS inverters operating at 200kHz switching frequency. IC Role / Device Role / Timing Role: High-speed unidirectional current path during dead-time intervals, suppressing shoot-through risk. Use Value: 50ns trr limits reverse recovery charge (Qrr) to <150nC, minimizing voltage spikes and EMI generation. |
| Freewheeling in Inductive Loads | High-Reliability Power Supplies |
Use Scenario: Energy recirculation in solenoid drivers and motor gate drivers in commercial HVAC control modules. IC Role / Device Role / Timing Role: Clamp diode across inductive coil, conducting flyback current during MOSFET turn-off. Use Value: 150A IFSM withstands transient energy surges without degradation, extending field lifetime beyond 15 years. | Use Scenario: Primary-side rectification in medical-grade AC-DC adapters certified to IEC 60601-1. IC Role / Device Role / Timing Role: Safety-isolated output rectifier with UL E-326243 recognition and halogen-free molding compound. Use Value: UL recognition and −55°C to +150°C operating range enable single-part qualification across multiple safety-critical platforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH8R05DJF | 50V VRRM, 8A IF, 1.15V VF @ 8A, TO-220AC package, no AEC-Q101 rating | Non-automotive industrial use only; lacks automotive qualification and UL file | Acceptable where AEC-Q101 and safety certification are not required |
| VS-8EWH05FN-M3 | 50V VRRM, 8A IF, 0.95V VF @ 8A, 45ns trr, TO-220AC, AEC-Q101 qualified | Lower VF and faster trr, but higher cost and lower surge rating (120A IFSM) | Preferred when minimizing conduction loss is critical and surge margin is relaxed |
Compared with STTH8R05DJF, HERAF801GH adds AEC-Q101 and UL recognition for automotive deployment; versus VS-8EWH05FN-M3, it trades 5ns slower recovery and 30A lower surge for broader availability and tighter cost control in volume production.
Availability
HERAF801GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switch-mode inverters, and freewheeling applications requiring stable component supply, AEC-Q101 validation, and UL safety recognition.
Supply support for HERAF801GH 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 rectifiers, TVS diodes, and MOSFETs for industrial and automotive markets.
The HERAF series targets high-reliability power conversion with AEC-Q101 qualification, glass passivation, and UL recognition - designed specifically for automotive subsystems and ruggedized industrial power supplies.
FAQ
What is the maximum junction temperature rating for HERAF801GH?
The HERAF801GH has a maximum junction temperature (TJ) of +150°C, validated across its full operating range from −55°C to +150°C. This rating enables reliable operation in under-hood automotive environments and high-ambient industrial enclosures. Thermal design must maintain TJ ≤150°C using the specified 2°C/W junction-to-case resistance and proper heatsinking. HERAF801GH performance remains stable within this limit per AEC-Q101 thermal cycling requirements.
Is HERAF801GH pin-compatible with standard ITO-220AC rectifiers?
Yes, HERAF801GH uses the industry-standard ITO-220AC footprint with Anode on lead 1 and Cathode on the metal tab (lead 2 optional). It shares identical mechanical dimensions, mounting hole location, and terminal pitch with other ITO-220AC rectifiers such as STTH8R05DJF and VS-8EWH05FN-M3. No PCB redesign is needed when substituting HERAF801GH into existing layouts using this package.
Does HERAF801GH meet automotive qualification standards?
Yes, HERAF801GH is explicitly AEC-Q101 qualified per the manufacturer's documentation and ordering code suffix "H". It undergoes stress testing for temperature cycling, humidity bias, high-temperature operating life, and mechanical shock - all aligned with AEC-Q101 Rev D requirements. This qualification confirms suitability for automotive powertrain, chassis, and body electronics applications.
What is the forward voltage specification for HERAF801GH at rated current?
The HERAF801GH has a maximum forward voltage (VF) of 1.0 V at 8 A forward current and 25°C junction temperature, measured under pulsed conditions (PW = 0.3 ms). At elevated temperatures (e.g., 125°C), VF decreases slightly due to semiconductor physics. This low VF directly reduces conduction losses in high-current DC-DC stages where HERAF801GH is deployed.
What safety certifications does HERAF801GH hold?
HERAF801GH is UL Recognized under File #E-326243 and complies with RoHS Directive 2011/65/EU and halogen-free requirements per IEC 61249-2-21. The UL recognition covers flammability (UL 94V-0 molding compound), electrical insulation, and construction integrity - enabling direct use in end-equipment safety certifications without additional component-level testing.
HERAF801GH 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):
- 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:
- 80pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
HERAF801GH FAQ
1.How can I place an order for HERAF801GH through Aetrix?
Please submit a Request for Quotation (RFQ) for HERAF801GH 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 HERAF801GH reliable?
The price and inventory of HERAF801GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HERAF801GH is usually 5 days.
3.What payment methods are accepted for HERAF801GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HERAF801GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HERAF801GH?
HERAF801GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HERAF801GH 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 HERAF801GH?
For technical support, including HERAF801GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HERAF801GH requirements.
6.How does Aetrix verify that HERAF801GH is sourced from the original manufacturer or authorized distributors?
All HERAF801GH 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 HERAF801GH meets industry standards.
7.What is the process for return or replacement of HERAF801GH?
All HERAF801GH units undergo pre-shipment inspection (PSI). If there is an issue with HERAF801GH, 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 HERAF801GH part is unused and in its original packaging.
Return procedure for HERAF801GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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