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Taiwan Semiconductor Corporation SR205HR0G
- Part No.:
- SR205HR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SR205HR0G.pdf
- Description:
- DIODE SCHOTTKY 50V 2A DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,568
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Product details
Overview
SR205HR0G from Taiwan Semiconductor is a 2 A, 50 V AEC-Q101-qualified Schottky barrier rectifier in DO-204AC (DO-15) package, featuring 0.70 V max forward voltage at 2 A and 5 mA max reverse current at 100 °C, used in automotive-grade DC/DC converters and SMPS secondary-side rectification.
For engineers reviewing the SR205HR0G datasheet, SR205HR0G pinout, SR205HR0G application, or SR205HR0G equivalent, this page delivers verified electrical specs, thermal performance data, AEC-Q101 qualification status, and real-world design context for high-efficiency, high-reliability power conversion systems.
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 10,000 V/µs critical dv/dt rating supports fast-switching topologies without parasitic turn-on.
Thermal design is enabled by RθJL = 21.7 °C/W and RθJC = 14.0 °C/W, allowing sustained 2 A operation up to 150 °C junction temperature. The device operates across -55 °C to +150 °C storage range and meets UL 94V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum non-repetitive reverse blocking voltage; defines safe operating limit in flyback or buck converter output stages |
| IF | 2 A continuous - Rated average forward current at case temperature ≤ 75 °C; sets baseline conduction capability |
| IFSM | 50 A peak (8.3 ms half-sine) - Withstands inrush and transient surges without failure in adapter or charger inputs |
| VF max | 0.70 V @ 2 A, 25 °C - Low conduction loss enables >92% efficiency in 12 V–24 V output DC/DC designs |
| IR max | 5 mA @ 100 °C - Low leakage preserves regulation margin under elevated ambient conditions in engine-bay applications |
| TJ max | +150 °C - Enables use in under-hood automotive modules without derating below full 2 A load |
| RθJL | 21.7 °C/W - Predictable lead-to-junction thermal path simplifies heatsinking for through-hole PCB layouts |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with cathode band polarity marking. Weight: 0.400 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (lead without band) | Forward current entry point | Connected to lower-potential node (e.g., transformer secondary center-tap or switch node return) |
| Cathode (lead with band) | Forward current exit / reverse-blocking terminal | Connected to output rail; blocks reverse voltage during off-state of switching cycle |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements including HTGB, HTRB, and temperature cycling |
| Guard ring structure | Prevents edge breakdown at rated VRRM, enabling stable 50 V blocking without field plate redesign |
| Pure tin plating | Ensures reliable solder joint formation per J-STD-002, eliminating whisker risk in long-life industrial deployments |
| UL 94V-0 molding compound | Self-extinguishing encapsulation meets flame-retardancy mandates for enclosed power supplies and EVSE units |
Applications
| Automotive DC/DC Converter | Industrial SMPS Secondary Rectifier |
|---|---|
Use Scenario: 12 V to 5 V/3.3 V step-down conversion in vehicle infotainment and ADAS ECUs. IC Role / Device Role / Timing Role: Primary unidirectional power transfer element on secondary side; replaces slower diodes to reduce switching losses. Use Value: 0.70 V VF cuts conduction loss by ~35% vs. standard PN rectifiers, directly improving thermal headroom at 2 A load. | Use Scenario: Output rectification in 24 V input, 12 V output open-frame industrial SMPS. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or quasi-resonant flyback topology. Use Value: 50 A IFSM withstands repeated cold-start surges without degradation, supporting robust 2-year field warranty targets. |
| USB-C PD Adapter Output Stage | Telecom Power Shelf Rectification |
Use Scenario: Secondary-side rectification in compact 65 W USB-C PD wall adapters. IC Role / Device Role / Timing Role: High-frequency rectifier synchronized with GaN FET switching at 100–300 kHz. Use Value: 10,000 V/µs dv/dt rating prevents false turn-on during rapid voltage transitions, eliminating gate drive coupling issues. | Use Scenario: -48 V DC input rectification in telecom power shelf front-end modules. IC Role / Device Role / Timing Role: Input surge protection and steady-state conduction path for redundant power feeds. Use Value: 150 °C TJ max allows operation at 70 °C ambient with full 2 A rating, reducing need for forced air cooling. |
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-2EY50 | Same DO-15 package, 2 A/50 V rating, but VF = 0.72 V max and no AEC-Q101 qualification | Qualified for commercial/industrial use only; not approved for automotive ECU deployment | Select when AEC-Q101 is not required and cost sensitivity outweighs 0.02 V VF penalty |
| ON Semiconductor SB250 | DO-15, 2 A/50 V, VF = 0.75 V max, IR = 10 mA @ 125 °C - higher leakage than SR205HR0G's 5 mA @ 100 °C | Suitable for general-purpose adapters but less stable in high-temperature telecom enclosures | Prefer where legacy footprint compatibility is critical and thermal derating margins exceed 20 °C |
Compared with VS-2EY50 and SB250, SR205HR0G delivers tighter leakage control at elevated temperature and certified automotive reliability-making it the preferred choice for safety-critical 12 V rail generation where long-term parametric stability is mandatory.
Availability
SR205HR0G is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS designs, and USB-C PD adapter development requiring stable component supply and AEC-Q101 compliance.
Supply support for SR205HR0G 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 SR202–SR220 series was designed specifically for high-efficiency, high-reliability rectification in space-constrained power supplies where low VF, robust surge handling, and automotive qualification are simultaneously required.
FAQ
What does the "H" suffix in SR205HR0G indicate?
The "H" in SR205HR0G denotes AEC-Q101 qualification, confirming that the SR205HR0G has passed rigorous stress testing-including high-temperature reverse bias, temperature cycling, and unbiased highly accelerated stress testing-for use in automotive electronic control units. This distinguishes SR205HR0G from non-H variants like SR205R0G, which lack automotive validation.
Is SR205HR0G compatible with lead-free reflow soldering processes?
Yes, SR205HR0G features pure tin-plated leads qualified per J-STD-002 for solderability, and its DO-204AC package is rated for peak reflow temperatures up to 260 °C. The SR205HR0G withstands standard IPC/JEDEC J-STD-020 moisture sensitivity level 1 conditions without preconditioning.
What is the maximum allowable junction temperature for continuous operation of SR205HR0G?
The SR205HR0G supports continuous operation up to +150 °C junction temperature, as confirmed in the Absolute Maximum Ratings table. At this limit, the device maintains rated 2 A forward current capability provided case temperature remains ≤75 °C and thermal resistance to ambient is managed per RθJA = 75.0 °C/W.
How does the guard ring in SR205HR0G improve reliability?
The guard ring in SR205HR0G mitigates electric field crowding at the silicon periphery, preventing premature avalanche breakdown under transient overvoltage events. This structural feature ensures the SR205HR0G sustains its full 50 V VRRM rating across temperature and lifetime without edge-initiated failure modes.
Does SR205HR0G meet halogen-free standards?
Yes, SR205HR0G complies with IEC 61249-2-21 for halogen-free materials, meaning total chlorine and bromine content is <900 ppm each, and total halogens are <1500 ppm. This is verified in TSC's material declarations and supports RoHS-compliant, environmentally regulated end equipment.
SR205HR0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AC, DO-15, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 700 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 50 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SR205HR0G FAQ
1.How can I place an order for SR205HR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SR205HR0G 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 SR205HR0G reliable?
The price and inventory of SR205HR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR205HR0G is usually 5 days.
3.What payment methods are accepted for SR205HR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR205HR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR205HR0G?
SR205HR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR205HR0G 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 SR205HR0G?
For technical support, including SR205HR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR205HR0G requirements.
6.How does Aetrix verify that SR205HR0G is sourced from the original manufacturer or authorized distributors?
All SR205HR0G 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 SR205HR0G meets industry standards.
7.What is the process for return or replacement of SR205HR0G?
All SR205HR0G units undergo pre-shipment inspection (PSI). If there is an issue with SR205HR0G, 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 SR205HR0G part is unused and in its original packaging.
Return procedure for SR205HR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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