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Taiwan Semiconductor Corporation SR009 R0G
- Part No.:
- SR009 R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
SR009 R0G.pdf
- Description:
- DIODE SCHOTTKY 90V 500MA DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,463
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Product details
Overview
SR009 R0G from Taiwan Semiconductor is a 0.5A, 90V repetitive peak reverse voltage Schottky barrier rectifier in DO-204AL (DO-41) package, featuring 0.85V max forward voltage at 0.5A and 100µA max reverse current at 25°C, used in compact DC-DC converters and AC adapters.
For engineers reviewing the SR009 R0G datasheet, SR009 R0G pinout, SR009 R0G application, or SR009 R0G equivalent, key selection criteria include its 90V VRRM rating, low VF for efficiency-critical 5–12V output rails, AEC-Q101 qualification option (H-suffix), and DO-41 thermal performance with 50°C/W RθJA.
Technical Context
This Schottky rectifier uses a single-die construction with guard ring overvoltage protection and pure tin-plated leads compliant with J-STD-002 solderability. Its junction temperature range spans –55°C to +150°C, supporting high-ambient industrial and automotive under-hood environments.
Electrical behavior is defined by low-conduction-loss characteristics: VF ≤ 0.85V at IF = 0.5A/25°C, IR ≤ 100 µA at VR = 90V/25°C, and CJ = 65 pF at 1 MHz/4V - enabling high-frequency switching up to several hundred kHz in flyback and buck topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 90 V - maximum repetitive reverse blocking voltage; sets upper limit for input voltage derating in SMPS designs |
| IF | 0.5 A - continuous forward current rating; defines usable output current in low-power adapter applications |
| VF (max) | 0.85 V @ 0.5A, 25°C - directly determines conduction loss (0.425W) and thermal load in linear-regulator-replacement use cases |
| IR (max) | 100 µA @ 90V, 25°C - ensures minimal leakage in standby mode of energy-efficient power supplies |
| CJ | 65 pF @ 1MHz, 4V - limits high-frequency switching noise and EMI in >200kHz DC-DC stages |
| RθJA | 50 °C/W - enables ~75°C rise at 0.5A in standard PCB layout, supporting natural-convection cooling |
| TJ max | +150 °C - allows operation in sealed enclosures or near heat sources without forced airflow |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, cathode indicated by band. Lead finish: pure tin, J-STD-002 compliant. Weight: 0.330 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential node (e.g., switch node in buck, secondary winding in flyback) |
| Cathode | Current exit point during forward conduction | Connected to output rail or filter capacitor; polarity marked by band on body |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Prevents premature edge breakdown at 90V, improving reliability under transient overvoltage stress |
| AEC-Q101 qualification option | Available with H-suffix (e.g., SR009H); validated for automotive electronics per stress test requirements |
| Low VF / high efficiency | 0.85V max VF reduces conduction loss by ≥25% vs. comparable 1N5819-class diodes at 0.5A |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive; supports green manufacturing and end-of-life compliance |
| High surge capability | 30A IFSM (8.3ms half-sine) withstands inrush and fault currents in unregulated input stages |
Applications
| USB-C Power Delivery Adapter | Industrial IoT Sensor Node PSU |
|---|---|
Use Scenario: Secondary-side rectification in 20–30W USB-C PD adapter with synchronous rectifier controller. IC Role / Device Role / Timing Role: Freewheeling diode providing unidirectional current path during high-side switch off-time. Use Value: 0.85V VF minimizes output voltage drop and improves cross-regulation across multi-output rails. | Use Scenario: Input-stage rectification for wide-input 5–24V DC-DC converter powering LoRaWAN sensor modules. IC Role / Device Role / Timing Role: Primary rectifier converting rectified AC or variable DC input to stable intermediate bus. Use Value: 90V VRRM and 150°C TJ max enable reliable operation with 36V transients and ambient temperatures up to 85°C. |
| Automotive Cabin Controller | Medical Portable Monitor Auxiliary Supply |
Use Scenario: Output rectification in 5V/0.5A auxiliary supply for infotainment MCU and CAN transceiver. IC Role / Device Role / Timing Role: Low-loss freewheeling element in buck converter operating at 500kHz. Use Value: 65pF junction capacitance suppresses high-frequency ringing, reducing EMI filter component count. | Use Scenario: Isolated DC-DC bias supply rectification in battery-powered patient monitor with strict leakage limits. IC Role / Device Role / Timing Role: Output rectifier ensuring <100µA reverse leakage at 25°C and <2mA at 125°C. Use Value: Ultra-low IR maintains standby current budget below 5µA, extending battery life between charges. |
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-50WQ03FNTR-M3 | 30V VRRM, 5A IF, TO-220AC package, VF = 0.42V @ 5A | Higher current/lower voltage; unsuitable for 90V input stages | Select only for high-current, low-VF needs where voltage rating is ≤30V |
| ON Semiconductor SB0590 | 90V VRRM, 0.5A IF, DO-41, VF = 0.87V @ 0.5A, IR = 150µA @ 25°C | Near-identical rating but higher leakage; not AEC-Q101 qualified | Acceptable for commercial-grade designs where AEC-Q101 is not required |
Compared with VS-50WQ03FNTR-M3 and SB0590, SR009 R0G uniquely balances 90V blocking, 0.5A capability, ultra-low 100µA leakage, and AEC-Q101 availability in DO-41 - making it optimal for space-constrained, high-reliability 5–12V output converters.
Availability
SR009 R0G is available at Aetrix Electronics and suitable for USB-C adapters, industrial sensor PSUs, and automotive cabin controllers requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for SR009 R0G 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 power, automotive, and industrial markets since 1979.
The SR002–SR010 series was designed specifically for cost-sensitive, high-efficiency low-current rectification in compact AC-DC and DC-DC power stages where DO-41 footprint and thermal performance are critical.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for SR009 R0G?
The SR009 R0G has a VRRM rating of 90 V, confirmed in the Absolute Maximum Ratings table of the H2104 datasheet. This value defines the highest reverse voltage the device can block repeatedly without breakdown and must be derated by ≥20% in practical designs with voltage transients or ripple.
Is SR009 R0G AEC-Q101 qualified?
The base SR009 R0G part is not AEC-Q101 qualified; however, the SR009H variant (same electrical specs, H-suffix) is explicitly listed as AEC-Q101 qualified in the ordering information section. SR009 R0G is suitable for commercial and industrial applications, while SR009H meets automotive stress-test requirements.
What is the forward voltage drop of SR009 R0G at rated current?
The SR009 R0G exhibits a maximum forward voltage (VF) of 0.85 V at IF = 0.5 A and TJ = 25°C, as specified in the Electrical Specifications table. At elevated junction temperatures (e.g., 125°C), VF decreases slightly due to Schottky diode physics, typically by ~2 mV/°C.
Does SR009 R0G have a halogen-free construction?
Yes, SR009 R0G complies with IEC 61249-2-21 for halogen-free materials and is RoHS compliant, as stated in the Features section of the datasheet. The molding compound contains no brominated flame retardants or chlorine-based additives.
What is the junction-to-ambient thermal resistance (RθJA) for SR009 R0G?
The SR009 R0G has a typical RθJA of 50 °C/W when mounted on a standard FR-4 PCB with 1-inch² copper pad, per the Thermal Performance table. This value assumes natural convection and no heatsink; actual thermal performance depends on PCB copper area and airflow.
SR009 R0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 90 V
- Current - Average Rectified (Io):
- 500mA
- Voltage - Forward (Vf) (Max) @ If:
- 850 mV @ 500 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 90 V
- Capacitance @ Vr, F:
- 65pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SR009 R0G FAQ
1.How can I place an order for SR009 R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SR009 R0G 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 SR009 R0G reliable?
The price and inventory of SR009 R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR009 R0G is usually 5 days.
3.What payment methods are accepted for SR009 R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR009 R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR009 R0G?
SR009 R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR009 R0G 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 SR009 R0G?
For technical support, including SR009 R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR009 R0G requirements.
6.How does Aetrix verify that SR009 R0G is sourced from the original manufacturer or authorized distributors?
All SR009 R0G 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 SR009 R0G meets industry standards.
7.What is the process for return or replacement of SR009 R0G?
All SR009 R0G units undergo pre-shipment inspection (PSI). If there is an issue with SR009 R0G, 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 SR009 R0G part is unused and in its original packaging.
Return procedure for SR009 R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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