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Taiwan Semiconductor Corporation SR809HR0G
- Part No.:
- SR809HR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SR809HR0G.pdf
- Description:
- DIODE SCHOTTKY 90V 8A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:3,104
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Product details
Overview
SR809HR0G from Taiwan Semiconductor is an AEC-Q101-qualified 8A, 90V Schottky barrier rectifier in DO-201AD package, featuring low forward voltage (0.92 V at 8A, 25°C), high surge current capability (150 A), and guard ring overvoltage protection - used in automotive-grade DC/DC converters and industrial SMPS.
For engineers reviewing the SR809HR0G datasheet, SR809HR0G pinout, SR809HR0G application, or SR809HR0G equivalent, key selection criteria include its 90 V repetitive peak reverse voltage, 150 A surge rating, 125–150°C junction temperature range, RoHS/halogen-free compliance, and AEC-Q101 qualification for under-hood power conversion.
Technical Context
This single-die Schottky rectifier uses a planar junction structure with integrated guard ring to sustain transient overvoltage events while maintaining low conduction loss. Its 0.92 V forward voltage at 8A/25°C and 5 mA reverse leakage at 125°C enable high-efficiency operation in high-frequency switching topologies.
The device is rated for 10,000 V/µs critical rate of rise of off-state voltage and exhibits 40 °C/W junction-to-ambient thermal resistance in standard PCB mounting - supporting stable thermal performance in compact, convection-cooled designs without forced airflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 90 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in DC/DC flyback or buck output stages |
| IF | 8 A - Continuous average forward current; supports sustained 100W+ power delivery with proper heatsinking |
| IFSM | 150 A - Non-repetitive surge current (8.3 ms half-sine); handles inrush and fault transients without failure |
| VF | 0.92 V @ 8A, 25°C - Low conduction loss reduces heat generation and improves system efficiency vs. silicon diodes |
| IR | 100 µA @ 90 V, 25°C; 5 mA @ 90 V, 125°C - Controlled leakage enables reliable operation across automotive temperature range |
| TJ max | 150°C - Extended junction temperature rating allows use in high-ambient environments like engine compartments |
| RθJA | 40 °C/W - Thermal resistance enables predictable junction temperature rise on standard FR-4 PCB with 1-in² copper pad |
Pinout & Package
DO-201AD axial-leaded package with cathode band marking; leads are pure tin plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (lead without band) | Forward current entry point | Connected to lower-potential side (e.g., switch node in synchronous rectification or cathode return in flyback) |
| Cathode (lead with band) | Forward current exit / reverse blocking terminal | Connected to output rail or positive bus; blocks reverse voltage up to 90 V during off-state |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics requiring reliability under thermal cycling and vibration |
| Guard ring structure | Enhances ruggedness against dv/dt-induced avalanche and line transients without derating VRRM |
| Low 0.92 V forward drop | Reduces conduction loss by ~35% vs. comparable 90 V Si fast recovery diodes, lowering thermal stress in dense layouts |
| RoHS and halogen-free | Complies with IEC 61249-2-21 and automotive ELV directives; enables use in eco-sensitive supply chains |
| 150 A surge rating | Withstands repeated cold-crank or load-dump events in 12 V automotive systems without degradation |
Applications
| Automotive DC/DC Converter | Industrial SMPS Output Rectification |
|---|---|
Use Scenario: Secondary-side rectification in 12 V → 3.3 V/5 V isolated DC/DC modules for ADAS camera ECUs. IC Role / Device Role / Timing Role: Schottky rectifier replacing synchronous MOSFETs where gate drive complexity must be minimized. Use Value: 0.92 V forward drop minimizes power loss at 5–8 A loads, enabling passive cooling and meeting AEC-Q101 lifetime requirements. | Use Scenario: Output rectification in 48 V input telecom PSUs delivering 12 V/20 A to base station backplanes. IC Role / Device Role / Timing Role: High-current unidirectional conduction path with fast recovery and low EMI generation. Use Value: 150 A surge rating absorbs repetitive turn-on surges from large output capacitors without derating. |
| USB-C PD Adapter Secondary Side | LED Driver Power Stage |
Use Scenario: Synchronous rectification replacement in 65 W USB-C PD adapters targeting UL62368-1 certification. IC Role / Device Role / Timing Role: Low-loss freewheeling path during high-frequency (100–300 kHz) flyback operation. Use Value: 40 °C/W RθJA and 150°C TJ max allow full 8 A load in compact, sealed enclosures without thermal throttling. | Use Scenario: Constant-current regulation stage in outdoor LED streetlight drivers exposed to ambient temperatures up to 85°C. IC Role / Device Role / Timing Role: Main rectifier in buck-derived constant-current topology handling 7–8 A continuous LED string current. Use Value: 5 mA reverse leakage at 125°C ensures stable current regulation without thermal runaway under worst-case ambient conditions. |
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-8EWH09-M3/45 | Same 90 V VRRM, 8 A IF, DO-201AD; VF = 0.89 V @ 8A (slightly lower), but not AEC-Q101 qualified | Suitable for commercial/industrial SMPS; lacks automotive qualification for under-hood deployment | Select when AEC-Q101 is not required and marginally lower VF is prioritized |
| ON Semiconductor SB890 | 90 V VRRM, 8 A IF, DO-201AD; VF = 0.95 V @ 8A, AEC-Q101 qualified, but higher leakage (200 µA @ 25°C) | Acceptable for automotive use but may require tighter thermal design due to higher conduction loss | Select when second-source assurance is needed and slightly higher VF is acceptable |
Compared with VS-8EWH09-M3/45 and SB890, SR809HR0G uniquely balances AEC-Q101 compliance, 0.92 V forward drop, and 100 µA reverse leakage at 25°C - making it optimal for thermally constrained automotive DC/DC converters where qualification and efficiency are jointly critical.
Availability
SR809HR0G is available at Aetrix Electronics and suitable for automotive power conversion, industrial SMPS, and LED driver applications requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for SR809HR0G 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 SR802–SR820 family was designed specifically for high-reliability, high-current Schottky rectification in automotive and industrial power supplies - emphasizing AEC-Q101 qualification, thermal robustness, and consistent parametric performance across voltage grades.
FAQ
What is the maximum junction temperature rating for SR809HR0G?
The SR809HR0G has a maximum junction temperature (TJ) rating of +150°C, verified per the manufacturer's absolute maximum ratings table. This extended rating enables reliable operation in under-hood automotive environments and high-ambient industrial settings. The SR809HR0G datasheet specifies that operation above 125°C requires derating of forward current to maintain thermal safety margins.
Is SR809HR0G pin-compatible with other parts in the SR802–SR820 series?
Yes, all SR802–SR820 devices, including SR809HR0G, share identical DO-201AD packaging, axial lead configuration, and cathode-band polarity marking. They are mechanically and electrically interchangeable in layout - only electrical parameters (VRRM, VF, IR) differ across the series. No PCB changes are required when substituting within this family.
Does SR809HR0G meet automotive qualification standards?
Yes, SR809HR0G is explicitly AEC-Q101 qualified, as indicated by the "H" suffix in its ordering code and confirmed in the manufacturer's mechanical data and ordering information sections. This qualification covers stress tests including temperature cycling, humidity bias, and high-temperature operating life - validating its suitability for automotive power electronics.
What is the forward voltage of SR809HR0G at 8 A and 125°C?
The SR809HR0G forward voltage is not specified at 125°C in the provided datasheet; only the 25°C value (0.92 V max) and reverse leakage (5 mA at 125°C) are given. However, typical Schottky behavior shows VF decreases with rising temperature - so actual VF at 125°C is expected to be ~0.82–0.86 V, though design margins should rely on the 25°C max specification unless application-specific characterization is performed.
How is the "R0G" suffix interpreted in SR809HR0G?
In SR809HR0G, "R0G" denotes green compound (halogen-free molding material per IEC 61249-2-21) and tape-and-reel packaging (1,250 pcs/reel). The "H" confirms AEC-Q101 qualification, and "SR809" identifies the 90 V variant. This full ordering code ensures traceability to environmental compliance, qualification level, and packaging format - all verified in TSC's official ordering information table.
SR809HR0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 90 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 920 mV @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 90 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
SR809HR0G FAQ
1.How can I place an order for SR809HR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SR809HR0G 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 SR809HR0G reliable?
The price and inventory of SR809HR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR809HR0G is usually 5 days.
3.What payment methods are accepted for SR809HR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR809HR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR809HR0G?
SR809HR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR809HR0G 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 SR809HR0G?
For technical support, including SR809HR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR809HR0G requirements.
6.How does Aetrix verify that SR809HR0G is sourced from the original manufacturer or authorized distributors?
All SR809HR0G 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 SR809HR0G meets industry standards.
7.What is the process for return or replacement of SR809HR0G?
All SR809HR0G units undergo pre-shipment inspection (PSI). If there is an issue with SR809HR0G, 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 SR809HR0G part is unused and in its original packaging.
Return procedure for SR809HR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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