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Taiwan Semiconductor Corporation MBRF1045 C0G
- Part No.:
- MBRF1045 C0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
MBRF1045 C0G.pdf
- Description:
- DIODE SCHOTTKY 45V 10A ITO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,707
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Product details
Overview
MBRF1045CT from Taiwan Semiconductor is a dual-die, 10A, 45V Schottky barrier rectifier in ITO-220AB package, featuring 0.70 V forward voltage at 5A/25°C and 0.80 V at 10A/25°C, with 120A surge capability and AEC-Q101 qualification option - used in automotive-grade DC-DC converters and industrial SMPS.
For engineers reviewing the MBRF1045CT datasheet, MBRF1045CT pinout, MBRF1045CT application, or MBRF1045CT equivalent, key selection criteria include repetitive peak reverse voltage (45 V), junction-to-case thermal resistance (3.5 °C/W), low forward voltage at high temperature, and guard ring–enabled overvoltage protection for reliable operation in high-reliability power conversion.
Technical Context
This dual-common-cathode Schottky rectifier integrates two independent 10A diodes sharing one cathode terminal, enabling synchronous rectification or dual-output configurations. Its 45 V VRRM and 120 A IFSM support transient-heavy switching topologies while maintaining low conduction loss.
The device operates across –55 °C to +150 °C junction range, with 10,000 V/µs dv/dt rating ensuring robustness against fast voltage transients. Guard ring structure and UL 94V-0 molding compound provide enhanced reliability in automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - maximum repetitive reverse blocking voltage per diode, defines safe operating limit in flyback or buck converter output stage |
| IF | 10 A - continuous average forward current per diode, determines heatsink sizing under steady-state load |
| IFSM | 120 A - non-repetitive surge current (8.3 ms half-sine), supports inrush and fault-current handling |
| VF @ 5A, 25°C | 0.70 V - low conduction loss per diode, directly reduces power dissipation and improves efficiency |
| RθJC | 3.5 °C/W - thermal resistance from junction to case, enables accurate thermal design when mounted to heatsink |
| TJ max | +150 °C - maximum allowable junction temperature, sets upper boundary for thermal margin in enclosed systems |
Pinout & Package
Package: ITO-220AB - insulated thermoplastic outline with integral metal tab for direct heatsink mounting; matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode 1) | Anode of first Schottky diode | Connects to input/high-side node in dual-output or parallel rectification |
| Pin 2 (Cathode) | Common cathode for both diodes | Shared output node; requires low-inductance connection to minimize switching noise |
| Pin 3 (Anode 2) | Anode of second Schottky diode | Enables independent control or redundancy in split-rail supplies |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Prevents premature edge breakdown under high dv/dt, improving long-term reliability in noisy switching environments |
| AEC-Q101 qualification option | Validated for automotive underhood applications including engine control and ADAS power modules |
| UL Recognized (E-326243) | Meets safety standards for end-equipment certification in industrial and medical auxiliary power supplies |
| Halogen-free & RoHS compliant | Complies with IEC 61249-2-21 and EU RoHS Directive for environmentally regulated manufacturing |
Applications
| Automotive DC-DC Converters | Industrial SMPS Outputs |
|---|---|
Use Scenario: High-efficiency 12 V to 5 V/3.3 V conversion in vehicle infotainment and body control modules. IC Role / Device Role / Timing Role: Output rectifier replacing conventional PN diodes to reduce conduction loss and thermal stress. Use Value: 0.70 V VF at 5A lowers power loss by ~35% vs. standard FRD, extending component lifetime in sealed enclosures. | Use Scenario: Secondary-side rectification in 48 V telecom and server PSUs with tight thermal constraints. IC Role / Device Role / Timing Role: Dual-anode configuration supports interleaved or redundant outputs without additional components. Use Value: 3.5 °C/W RθJC allows direct heatsink mounting, eliminating thermal interface material in space-constrained designs. |
| Laptop Adapters | Renewable Energy Inverters |
Use Scenario: Compact AC-DC adapters requiring high power density and low no-load losses. IC Role / Device Role / Timing Role: Synchronous rectifier in quasi-resonant flyback topology to improve light-load efficiency. Use Value: 100 µA max reverse leakage at 25°C minimizes standby power consumption versus silicon alternatives. | Use Scenario: PV string-level DC optimizers with wide ambient temperature range (–40 °C to +85 °C). IC Role / Device Role / Timing Role: Freewheeling diode in boost converter stage handling intermittent solar input. Use Value: 120 A IFSM withstands lightning-induced surges without derating, reducing need for external TVS protection. |
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-10BQ045 | Same 45 V VRRM, 10 A IF, but TO-220AC package (non-insulated); RθJC = 4.0 °C/W | Requires insulating washer for heatsink mounting; not AEC-Q101 qualified | Preferred where cost sensitivity outweighs automotive qualification and thermal performance |
| ON Semiconductor MBR1045CT | Identical electrical specs and ITO-220AB package; same pinout and marking; AEC-Q101 available as MBR1045CTH | No functional difference; validated in same reference designs for industrial SMPS | Drop-in alternative with identical footprint and thermal behavior; suitable for supply chain diversification |
Compared with VS-10BQ045 and MBR1045CT, the MBRF1045CT offers superior thermal resistance (3.5 vs. 4.0 °C/W) and factory-certified AEC-Q101 availability, making it optimal for thermally constrained automotive and industrial applications where reliability and efficiency are prioritized over lowest unit cost.
Availability
MBRF1045CT is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS outputs, and laptop adapters requiring stable component supply with full traceability and lifecycle management.
Supply support for MBRF1045CT 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 devices, rectifiers, and protection components.
The MBRF10xxCT series targets high-reliability power conversion applications, combining Schottky efficiency with rugged packaging and automotive-grade qualification options for demanding environments.
FAQ
What is the maximum junction temperature rating for MBRF1045CT?
The MBRF1045CT has a maximum junction temperature (TJ) of +150 °C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet. This rating applies across the full operating ambient range and enables use in under-hood automotive and high-temperature industrial environments. Derating curves confirm usable current capacity down to –55 °C storage temperature. The MBRF1045CT must be thermally managed to stay within this limit during continuous operation.
Is MBRF1045CT available in an AEC-Q101 qualified version?
Yes, the AEC-Q101 qualified version of MBRF1045CT is designated as MBRF1045CTH per Taiwan Semiconductor's ordering information. It undergoes full stress testing per AEC-Q101 Rev D requirements, including temperature cycling, humidity bias, and mechanical shock. The MBRF1045CTH shares identical electrical and thermal specifications with the standard MBRF1045CT and is offered in the same ITO-220AB package with 50/tube packing.
What is the forward voltage of MBRF1045CT at 10A and 125°C?
The forward voltage (VF) of MBRF1045CT is specified at 0.67 V maximum when tested at 10 A forward current and 125 °C junction temperature, per the Electrical Specifications table in the Taiwan Semiconductor datasheet. This low VF at elevated temperature ensures stable conduction loss in high-ambient applications such as engine compartments or sealed power enclosures. The MBRF1045CT maintains this performance without thermal runaway due to its Schottky architecture.
Does MBRF1045CT have a guard ring structure?
Yes, MBRF1045CT incorporates a guard ring structure explicitly stated in the Features section of the Taiwan Semiconductor datasheet to provide overvoltage protection. This design mitigates edge breakdown under high dv/dt conditions common in switching power supplies, enhancing long-term reliability. The guard ring is integral to the die layout and contributes to the device's 10,000 V/µs critical rate of rise of off-state voltage rating. This feature is confirmed for MBRF1045CT and all members of the MBRF10xxCT family.
What is the reverse leakage current of MBRF1045CT at 125°C?
At 125 °C junction temperature and rated reverse voltage (45 V), the MBRF1045CT exhibits a maximum reverse leakage current (IR) of 15 mA per diode, as specified in the Electrical Specifications table. This value is measured under pulse conditions (PW = 30 ms) and reflects typical behavior for high-current Schottky rectifiers at elevated temperature. The MBRF1045CT's leakage remains well below thermal runaway thresholds and supports stable operation in high-temperature DC-DC converters.
MBRF1045 C0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-2 Full Pack
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 700 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 45 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
MBRF1045 C0G FAQ
1.How can I place an order for MBRF1045 C0G through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRF1045 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 MBRF1045 C0G reliable?
The price and inventory of MBRF1045 C0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRF1045 C0G is usually 5 days.
3.What payment methods are accepted for MBRF1045 C0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRF1045 C0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRF1045 C0G?
MBRF1045 C0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRF1045 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 MBRF1045 C0G?
For technical support, including MBRF1045 C0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRF1045 C0G requirements.
6.How does Aetrix verify that MBRF1045 C0G is sourced from the original manufacturer or authorized distributors?
All MBRF1045 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 MBRF1045 C0G meets industry standards.
7.What is the process for return or replacement of MBRF1045 C0G?
All MBRF1045 C0G units undergo pre-shipment inspection (PSI). If there is an issue with MBRF1045 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 MBRF1045 C0G part is unused and in its original packaging.
Return procedure for MBRF1045 C0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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