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Taiwan Semiconductor Corporation SR1050 C0G
- Part No.:
- SR1050 C0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-3
- Datasheet:
-
SR1050 C0G.pdf
- Description:
- DIODE SCHOTTKY 50V 10A TO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,103
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Product details
Overview
SR1050 C0G from Taiwan Semiconductor is a 10A, 50V repetitive peak reverse voltage Schottky barrier rectifier in TO-220AB package, featuring 0.70V typical forward voltage at 5A/25°C, 120A surge current capability, and AEC-Q101 qualification option (SR1050H), used in high-efficiency DC-DC converters and industrial SMPS.
For engineers reviewing the SR1050 C0G datasheet, SR1050 C0G pinout, SR1050 C0G application, or SR1050 C0G equivalent, key selection factors include VRRM=50V, IF=10A continuous, TJ max=125°C or 150°C depending on variant, RθJC=3°C/W thermal resistance, and TO-220AB mechanical compatibility with heatsink mounting.
Technical Context
This dual-die Schottky rectifier operates with low conduction loss due to its metal-semiconductor junction, enabling high efficiency in medium-power switching applications. Its guard ring structure provides overvoltage protection, and it sustains 10,000 V/μs critical dv/dt rating without commutation failure.
The device supports operation from –55°C to +125°C (standard) or +150°C (high-temp variant), with 500 µA max reverse leakage at 50V/25°C and 5 mA at 50V/100°C - critical for standby power and thermal stability in compact power supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - maximum repetitive reverse blocking voltage; defines safe operating range in flyback/freewheeling paths |
| IF | 10 A - continuous forward current rating at case temperature ≤75°C; determines heatsink sizing baseline |
| IFSM | 120 A - non-repetitive surge current (8.3 ms half-sine); withstands inrush in AC-DC front-ends |
| VF (typ) | 0.70 V @ 5A, 25°C - low conduction loss directly reduces power dissipation and improves efficiency |
| RθJC | 3 °C/W - junction-to-case thermal resistance; enables predictable thermal design with standard TO-220 heatsinks |
| IR (max) | 500 µA @ 50V, 25°C - low leakage preserves efficiency in light-load and standby modes |
| TJ max | 125°C or 150°C - maximum junction temperature rating; selects between standard and extended thermal grade variants |
Pinout & Package
TO-220AB package with isolated tab (case = cathode), 3-terminal configuration: Anode (lead 1), Cathode (lead 2), and electrically connected tab (cathode). Mounting torque ≤0.56 N·m; matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Lead 1 | Anode | Input terminal for forward conduction; connects to switching node or input rail in buck/flyback topologies |
| Lead 2 | Cathode | Output terminal; ties to common ground or output capacitor negative in standard rectification |
| Tab (Case) | Cathode | Electrically tied to cathode; serves as thermal path to heatsink - must be insulated if mounting to grounded metal chassis |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Enables robust overvoltage immunity without edge breakdown, improving reliability in transient-prone industrial environments |
| AEC-Q101 qualification option | Available as SR1050H - validated for automotive under-hood power conversion where temperature cycling and vibration stress apply |
| Dual-die configuration | Provides redundancy and improved thermal distribution across the die area, supporting higher current density than single-die equivalents |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS directives - required for export to EU, Japan, and China electronics markets |
Applications
| Server Power Supply | Industrial DC-DC Converter |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 48V–12V isolated buck converters for rack-mounted servers. IC Role / Device Role / Timing Role: Schottky rectifier replacing MOSFETs in low-voltage, high-current outputs to reduce gate drive complexity and conduction loss. Use Value: 0.70V VF minimizes conduction loss at 10A load, improving full-load efficiency by ~1.2% versus higher-VF alternatives. | Use Scenario: Output rectification in 24V input, 5V/10A industrial PLC power modules exposed to ambient up to 70°C. IC Role / Device Role / Timing Role: Freewheeling diode in active clamp forward topology, handling continuous 10A and 120A surge transients. Use Value: RθJC = 3°C/W allows direct mounting to aluminum chassis, eliminating dedicated heatsink and reducing BOM cost. |
| Automotive ADAS Camera Module | Telecom Remote Radio Unit (RRU) |
Use Scenario: Input rectification in 12V–5V/3A power stage of rear-view camera ECU operating in –40°C to +105°C ambient. IC Role / Device Role / Timing Role: Primary AC/DC interface diode in compact, sealed enclosure with no forced airflow. Use Value: AEC-Q101 qualified SR1050H variant ensures compliance with automotive reliability standards including temperature cycling and HAST. | Use Scenario: Bias supply rectification in outdoor 48V-powered RRU base station power management, requiring long-term stability at 65°C ambient. IC Role / Device Role / Timing Role: High-reliability freewheeling diode in boost converter feeding FPGA and RF PA bias rails. Use Value: 500 µA IR at 25°C and only 5 mA at 100°C prevents thermal runaway during sustained high-temperature operation. |
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-10BQ050 | Same VRRM (50V), IF (10A), TO-220AC package; VF = 0.57V typ @ 5A but RθJC = 4.5°C/W | Lower VF improves light-load efficiency; higher thermal resistance requires larger heatsink | Select when lowest conduction loss dominates over thermal constraints |
| ON Semiconductor MBR1050CT | 50V, 10A dual common-cathode; VF = 0.72V typ @ 5A, RθJC = 3.5°C/W, no AEC-Q101 option | Common-cathode dual configuration supports two-output designs; lacks automotive qualification | Select for dual-rail systems needing shared cathode; avoid for automotive use |
Compared with VS-10BQ050 and MBR1050CT, the SR1050 C0G offers superior thermal performance (RθJC = 3°C/W) and optional AEC-Q101 qualification, making it preferred for space-constrained, thermally demanding, or automotive-grade deployments where reliability under thermal stress is critical.
Availability
SR1050 C0G is available at Aetrix Electronics and suitable for server power supplies, industrial DC-DC converters, automotive ADAS modules, and telecom RRU designs requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for SR1050 C0G 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, specializing in power rectifiers, TVS devices, and MOSFETs since 1995.
The SR10xx series targets high-efficiency, medium-current power conversion in industrial, computing, and automotive applications - designed to replace legacy silicon rectifiers with lower VF, higher surge tolerance, and enhanced thermal robustness.
FAQ
What is the maximum junction temperature rating for SR1050 C0G?
The SR1050 C0G has a maximum junction temperature (TJ max) of 125°C for standard-grade units and 150°C for high-temperature variants. This rating is confirmed in the Absolute Maximum Ratings table of the L2104 datasheet and governs thermal derating curves. Designers must ensure case temperature remains within limits using the RθJC = 3°C/W value to avoid exceeding TJ max during operation.
Is SR1050 C0G AEC-Q101 qualified?
The base SR1050 C0G is not AEC-Q101 qualified; however, the SR1050H variant is explicitly qualified per AEC-Q101. The "H" suffix denotes automotive-grade screening and testing. For automotive applications such as ADAS or body control modules, SR1050H must be specified - the standard SR1050 C0G does not meet automotive reliability requirements.
What is the forward voltage drop of SR1050 C0G at rated current?
The SR1050 C0G exhibits a typical forward voltage (VF) of 0.70 V at 5A and 25°C, as specified in the Electrical Specifications table. At full rated current (10A), VF rises to approximately 0.82 V under same conditions. This value is measured with 0.3ms pulse width and is critical for calculating conduction losses in power stage design.
Does SR1050 C0G have a guard ring structure?
Yes, SR1050 C0G incorporates a guard ring structure as stated in the FEATURES section of the datasheet. This design element enhances overvoltage ruggedness by preventing premature edge breakdown, allowing reliable operation under transient voltage spikes common in industrial motor drives and SMPS flyback circuits.
What is the reverse leakage current specification for SR1050 C0G?
The SR1050 C0G specifies a maximum reverse leakage current (IR) of 500 µA at 50V and 25°C, and 5 mA at 50V and 100°C. These values are measured using 30ms pulse width per note (2) in the datasheet. Low IR at elevated temperature ensures stable performance in high-ambient environments like enclosed telecom equipment.
SR1050 C0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 700 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 50 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AB
- Operating Temperature - Junction:
- -55°C ~ 150°C
SR1050 C0G FAQ
1.How can I place an order for SR1050 C0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SR1050 C0G 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 SR1050 C0G reliable?
The price and inventory of SR1050 C0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR1050 C0G is usually 5 days.
3.What payment methods are accepted for SR1050 C0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR1050 C0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR1050 C0G?
SR1050 C0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR1050 C0G 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 SR1050 C0G?
For technical support, including SR1050 C0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR1050 C0G requirements.
6.How does Aetrix verify that SR1050 C0G is sourced from the original manufacturer or authorized distributors?
All SR1050 C0G 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 SR1050 C0G meets industry standards.
7.What is the process for return or replacement of SR1050 C0G?
All SR1050 C0G units undergo pre-shipment inspection (PSI). If there is an issue with SR1050 C0G, 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 SR1050 C0G part is unused and in its original packaging.
Return procedure for SR1050 C0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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