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Taiwan Semiconductor Corporation SR820H
- Part No.:
- SR820H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SR820H.pdf
- Description:
- 8A, 200V, PLANAR SCHOTTKY
- Quantity:
- Payment:
- Shipping:
Inventory:5,740
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Product details
Overview
SR820H from Taiwan Semiconductor is an AEC-Q101-qualified 8A, 200V Schottky barrier rectifier in DO-201AD package, featuring 1.02V forward voltage at 8A/25°C, 5mA reverse leakage at 125°C, and 150A surge current capability - deployed in automotive-grade DC-DC converters and high-efficiency SMPS.
For engineers reviewing the SR820H datasheet, SR820H pinout, SR820H application, or SR820H equivalent, key selection criteria include its AEC-Q101 qualification, 200V VRRM, thermal resistance of 40°C/W, and DO-201AD mechanical compatibility with high-surge industrial power rails.
Technical Context
This single-die Schottky rectifier operates with a maximum junction temperature of +150°C and supports repetitive peak reverse voltages up to 200V. Its guard ring structure provides overvoltage protection, while the pure tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
The device delivers low conduction loss via 1.02V typical forward voltage at rated 8A current and 25°C junction temperature, and maintains stable reverse blocking with ≤100µA leakage at 25°C and ≤5mA at 125°C under rated 200V reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum non-repetitive reverse blocking voltage before breakdown |
| IF | 8 A - Continuous average forward current rating at case temperature ≤75°C |
| IFSM | 150 A - Peak non-repetitive surge current (8.3ms half-sine) without damage |
| VF @ 8A, 25°C | 1.02 V - Forward conduction loss directly impacts system efficiency and thermal design |
| IR @ 200V, 125°C | 5 mA - Reverse leakage determines standby power loss and thermal runaway risk |
| RθJA | 40 °C/W - Junction-to-ambient thermal resistance defines heatsink requirement for 8A operation |
| AEC-Q101 | Qualified - Validated for automotive electronic systems per stress test standard |
Pinout & Package
DO-201AD axial-leaded package with cathode band marking; 1.10g mass; UL 94V-0 molding compound; polarity indicated by cathode band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to lower-potential side (e.g., ground or return path) in rectification |
| Cathode (Lead 2, banded end) | Forward current exit / reverse blocking terminal | Connected to higher-potential input; reverse voltage applied between cathode and anode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood applications including engine control and ADAS power supplies |
| Guard ring structure | Enhances ruggedness against transient overvoltage events without external snubbers |
| 150A surge rating | Withstands inrush and fault currents in 48V automotive and industrial DC bus systems |
| Pure tin plating | Ensures reliable solder joint formation and long-term intermetallic stability per J-STD-002 |
| Halogen-free construction | Complies with IEC 61249-2-21 for environmentally regulated electronics manufacturing |
Applications
| Automotive DC-DC Converters | Industrial SMPS |
|---|---|
Use Scenario: High-efficiency 12V–48V bidirectional conversion in electric vehicle auxiliary power modules. IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 8A load with minimal conduction loss. Use Value: 1.02V VF reduces power dissipation by ~1.2W vs. comparable 1.2V diodes, lowering heatsink size and cost. | Use Scenario: Output stage rectification in 1kW telecom rectifiers operating at 100kHz switching frequency. IC Role / Device Role / Timing Role: Fast-recovery Schottky rectifier minimizing reverse recovery loss and EMI generation. Use Value: 150A IFSM withstands repeated cold-start surges without degradation, extending field life. |
| Server Power Supplies | LED Driver Secondary Side |
Use Scenario: +12V output rectification in redundant 80 PLUS Titanium AC-DC front-end supplies. IC Role / Device Role / Timing Role: High-current secondary-side freewheeling diode in synchronous rectifier-assisted topology. Use Value: 40°C/W RθJA enables natural convection cooling at full 8A load, eliminating fan dependency. | Use Scenario: Constant-current regulation loop output rectification in outdoor LED streetlight drivers. IC Role / Device Role / Timing Role: Isolated secondary-side rectifier exposed to ambient temperatures up to 85°C. Use Value: ≤5mA IR at 125°C prevents thermal runaway in sealed, high-temperature enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-8EWH02-M3/45 | 200V VRRM, 8A IF, but 1.10V VF @ 8A - 80mV higher conduction loss | No AEC-Q101 qualification; rated only for commercial/industrial use | Select when automotive qualification is not required and marginally higher VF is acceptable |
| ON Semiconductor MUR820EG | 200V VRRM, 8A IF, but ultrafast recovery (50ns) - not a Schottky; higher VF (~1.7V) | Higher switching loss and EMI; suitable where reverse recovery robustness outweighs efficiency | Select only if reverse recovery immunity is prioritized over conduction efficiency |
Compared with VS-8EWH02-M3/45 and MUR820EG, SR820H uniquely combines AEC-Q101 qualification, lowest VF (1.02V), and Schottky speed - making it optimal for thermally constrained, automotive-compliant 8A rectification where efficiency and reliability are co-critical.
Availability
SR820H is available at Aetrix Electronics and suitable for automotive power conversion, industrial SMPS, and server PSU designs requiring stable component supply, AEC-Q101 compliance, and high-surge ruggedness.
Supply support for SR820H 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 SR8xx series targets high-reliability power rectification, with SR820H specifically engineered for AEC-Q101-compliant 200V/8A applications demanding low VF, high surge tolerance, and halogen-free packaging.
FAQ
What is the maximum junction temperature rating for SR820H?
The SR820H has a maximum junction temperature (TJ) rating of +150°C, validated under AEC-Q101 stress conditions. This allows operation in under-hood automotive environments and high-ambient industrial settings. The SR820H datasheet specifies derating curves starting at 75°C case temperature, and thermal design must ensure junction temperature remains within this limit during 8A continuous operation.
Is SR820H pin-compatible with other SR8xx series devices?
Yes, all SR8xx devices including SR820H share identical DO-201AD package dimensions, lead spacing, and axial pinout - anode and cathode leads are mechanically interchangeable. However, electrical parameters differ significantly across the series (e.g., VRRM ranges from 20V to 200V), so electrical substitution requires validation of voltage and thermal margins.
Does SR820H require a heatsink for 8A continuous operation?
At 8A continuous current, SR820H dissipates approximately 8.16W (8A × 1.02V). With RθJA = 40°C/W and ambient at 25°C, junction temperature would reach ~352°C - far exceeding 150°C. Therefore, a heatsink or PCB copper area is mandatory; typical designs use ≥10 cm² 2-oz copper pad or small finned heatsink to maintain TJ ≤150°C.
What does the "H" suffix in SR820H signify?
The "H" suffix in SR820H explicitly denotes AEC-Q101 qualification per Taiwan Semiconductor's ordering nomenclature. It is not a package variant or performance grade - SR820H and SR820 share identical electrical specs and DO-201AD packaging, but only SR820H has undergone full AEC-Q101 stress testing (including temperature cycling, HTRB, and ESD).
How does SR820H's reverse leakage compare to lower-voltage SR8xx variants?
SR820H exhibits ≤100µA reverse leakage at 200V and 25°C, increasing to ≤5mA at 125°C. In contrast, lower-voltage variants like SR802 (20V) show ≤500µA at 25°C but higher relative leakage at elevated temperature due to lower bandgap design. This reflects the trade-off between high-voltage blocking and leakage control inherent in Schottky architecture.
SR820H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 1.02 V @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 200 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -55°C ~ 150°C
SR820H FAQ
1.How can I place an order for SR820H through Aetrix?
Please submit a Request for Quotation (RFQ) for SR820H 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 SR820H reliable?
The price and inventory of SR820H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR820H is usually 5 days.
3.What payment methods are accepted for SR820H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR820H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR820H?
SR820H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR820H 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 SR820H?
For technical support, including SR820H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR820H requirements.
6.How does Aetrix verify that SR820H is sourced from the original manufacturer or authorized distributors?
All SR820H 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 SR820H meets industry standards.
7.What is the process for return or replacement of SR820H?
All SR820H units undergo pre-shipment inspection (PSI). If there is an issue with SR820H, 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 SR820H part is unused and in its original packaging.
Return procedure for SR820H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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