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Taiwan Semiconductor Corporation HERAF805GH
- Part No.:
- HERAF805GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
HERAF805GH.pdf
- Description:
- 50NS, 8A, 400V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
HERAF805GH from Taiwan Semiconductor is an AEC-Q101-qualified, single-die, high-efficiency fast recovery rectifier in ITO-220AC package, rated for 8 A average forward current, 600 V repetitive peak reverse voltage (VRRM), and 150 A surge current (IFSM). It delivers 1.3 V typical forward voltage at 8 A and 25 °C, with 50 ns reverse recovery time, targeting automotive-grade DC/DC converters and switching inverters.
For engineers reviewing the HERAF805GH datasheet, HERAF805GH pinout, HERAF805GH application, or HERAF805GH equivalent, key selection criteria include its AEC-Q101 qualification, 600 V VRRM, 50 ns trr, thermal resistance of 2 °C/W, and ITO-220AC mechanical compatibility with heatsink mounting.
Technical Context
This device is a glass-passivated, single-junction silicon rectifier optimized for high-frequency switching applications. Its 50 ns reverse recovery time and low 1.3 V forward voltage at 8 A enable reduced conduction and switching losses in 60–500 kHz power stages.
The ITO-220AC package provides direct case-to-heatsink thermal path with RθJC = 2 °C/W, supporting continuous 8 A operation up to 150 °C junction temperature. Polarity is marked on the device body, and terminals meet J-STD-002 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - supports 400 V DC bus designs with 1.5× safety margin |
| IF | 8 A - continuous forward current rating at TC = 110 °C |
| IFSM | 150 A - withstands 8.3 ms half-sine surge, critical for inrush and fault handling |
| VF @ 8 A, 25 °C | 1.3 V - enables <10.4 W conduction loss per device at full load |
| trr | 50 ns - minimizes switching loss and EMI in hard-switched topologies |
| RθJC | 2 °C/W - allows efficient heatsinking; ΔT = 16 °C rise at 8 W dissipation |
| Junction temp | −55 to +150 °C - meets extended automotive ambient requirements |
Pinout & Package
Package: ITO-220AC - insulated TO-220 variant with electrically isolated tab, UL 94V-0 molding compound, matte tin-plated leads, and 0.56 N·m max mounting torque. Polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input current entry point | Connected to high-side switch node or transformer secondary; requires trace width ≥1.5 mm for 8 A |
| Cathode (Lead 2) | Output current exit point | Connects to output capacitor or ground return; low-inductance layout critical for trr performance |
| Tab (Case) | Electrically isolated thermal path | Mounts directly to heatsink; no electrical connection required; enables safe isolation in floating topologies |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications per stress test requirements |
| Glass passivated junction | Enhances moisture resistance and long-term reliability under thermal cycling |
| UL Recognized (E-326243) | Meets safety standards for end-equipment certification in industrial and automotive systems |
| Halogen-free (IEC 61249-2-21) | Complies with RoHS and environmental regulations for global OEM supply chains |
| 150 A IFSM | Supports robust overcurrent protection design without parallel devices in mid-power converters |
Applications
| Automotive DC/DC Converters | Industrial Switching Inverters |
|---|---|
Use Scenario: 12 V–48 V bidirectional DC/DC converter in 48 V mild-hybrid vehicles. IC Role / Device Role / Timing Role: Output freewheeling rectifier in synchronous or asynchronous buck-boost stage. Use Value: 50 ns trr reduces turn-off spike and EMI; AEC-Q101 qualification ensures compliance with ISO 16750-2. | Use Scenario: 400 V input, 230 V AC output inverter for HVAC variable-speed drives. IC Role / Device Role / Timing Role: Freewheeling diode across IGBTs in H-bridge output stage. Use Value: 600 V VRRM and 150 A IFSM handle motor regeneration surges; 2 °C/W RθJC sustains 8 A RMS at 85 °C ambient. |
| Server PSU Secondary Side | Renewable Energy Charge Controllers |
Use Scenario: Secondary-side synchronous rectification replacement in 3 kW telecom rectifier. IC Role / Device Role / Timing Role: High-efficiency output rectifier in LLC resonant converter. Use Value: 1.3 V VF lowers conduction loss vs. standard FRDs; glass passivation improves humidity reliability in datacenter environments. | Use Scenario: MPPT charge controller for 24 V battery banks fed by 100 V PV arrays. IC Role / Device Role / Timing Role: Blocking diode between PV string and battery bank. Use Value: 600 V rating accommodates open-circuit PV voltage spikes; UL recognition simplifies UL 1741 listing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH8R06DJF | 600 V VRRM, 8 A IF, 55 ns trr, TO-220AC package, not AEC-Q101 qualified | Targets industrial SMPS only; lacks automotive qualification and UL recognition | Prefer HERAF805GH where AEC-Q101 or UL E-326243 is mandatory |
| VS-8EWH06FN-M3 | 600 V VRRM, 8 A IF, 60 ns trr, ITO-220AC, AEC-Q101 qualified, halogen-free | Same qualification and package; slightly higher VF (1.45 V typ.) and longer trr | HERAF805GH offers lower conduction loss and faster recovery for high-frequency designs |
Compared with STTH8R06DJF and VS-8EWH06FN-M3, HERAF805GH uniquely combines AEC-Q101, UL recognition, 50 ns trr, and 1.3 V VF in ITO-220AC-enabling smaller heatsinks and simplified automotive certification.
Availability
HERAF805GH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial switching inverters, and renewable energy charge controllers requiring stable component supply, AEC-Q101 compliance, and long-lifecycle support.
Supply support for HERAF805GH 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 computing markets since 1979.
The HERAF series targets high-reliability power conversion with AEC-Q101 qualification, low-loss rectification, and thermally robust packaging-designed specifically for automotive 48 V systems and industrial UPS/inverters.
FAQ
What is the maximum junction temperature rating for HERAF805GH?
The HERAF805GH has a maximum junction temperature (TJ) of +150 °C, with operational range from −55 °C to +150 °C. This rating supports use in under-hood automotive environments and high-ambient industrial enclosures when mounted on an appropriate heatsink with thermal interface material.
Is HERAF805GH pin-compatible with other devices in the HERAF801G–HERAF808G family?
Yes, all HERAF801G through HERAF808G variants-including HERAF805GH-share identical ITO-220AC package dimensions, pinout, and terminal configuration. Voltage ratings differ across the family, but mechanical and thermal mounting requirements remain consistent for HERAF805GH and its siblings.
Does HERAF805GH require a heatsink in standard operation?
HERAF805GH requires a heatsink for continuous 8 A operation above ~60 °C ambient. With RθJC = 2 °C/W and typical power dissipation of ~10.4 W at full load, even modest heatsinking (e.g., 10 cm² aluminum fin) keeps junction temperature within safe limits per derating curves in the HERAF805GH datasheet.
What does the "H" suffix in HERAF805GH signify?
The "H" suffix in HERAF805GH explicitly denotes AEC-Q101 qualification, distinguishing it from non-automotive-grade variants like HERAF805G. This qualification covers stress testing for temperature cycling, humidity, mechanical shock, and high-temperature operating life-required for automotive power electronics.
How does HERAF805GH's reverse recovery time compare to standard rectifiers?
HERAF805GH achieves 50 ns reverse recovery time (trr) at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A-significantly faster than general-purpose rectifiers (typically 500–2000 ns). This enables efficient operation in 100–500 kHz switching converters while minimizing switching loss and voltage overshoot.
HERAF805GH 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):
- 400 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 400 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
HERAF805GH FAQ
1.How can I place an order for HERAF805GH through Aetrix?
Please submit a Request for Quotation (RFQ) for HERAF805GH 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 HERAF805GH reliable?
The price and inventory of HERAF805GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HERAF805GH is usually 5 days.
3.What payment methods are accepted for HERAF805GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HERAF805GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HERAF805GH?
HERAF805GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HERAF805GH 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 HERAF805GH?
For technical support, including HERAF805GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HERAF805GH requirements.
6.How does Aetrix verify that HERAF805GH is sourced from the original manufacturer or authorized distributors?
All HERAF805GH 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 HERAF805GH meets industry standards.
7.What is the process for return or replacement of HERAF805GH?
All HERAF805GH units undergo pre-shipment inspection (PSI). If there is an issue with HERAF805GH, 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 HERAF805GH part is unused and in its original packaging.
Return procedure for HERAF805GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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