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Taiwan Semiconductor Corporation MBRF2045 C0G
- Part No.:
- MBRF2045 C0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
MBRF2045 C0G.pdf
- Description:
- DIODE SCHOTTKY 45V 20A ITO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,839
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Product details
Overview
MBRF2045 from Taiwan Semiconductor is a 20A, 45V Schottky barrier rectifier in ITO-220AC package, designed for high-efficiency DC/DC conversion and SMPS output stages. It delivers low forward voltage (0.75 V at 20 A, 25°C), high surge capability (150 A), and operates up to 150°C junction temperature.
For engineers reviewing the MBRF2045 datasheet, MBRF2045 pinout, MBRF2045 application, or MBRF2045 equivalent, key selection factors include its 45 V repetitive peak reverse voltage, 3°C/W junction-to-case thermal resistance, AEC-Q101 qualification option, and suitability for automotive power supplies requiring low conduction loss and robust surge immunity.
Technical Context
The MBRF2045 uses a single-die Schottky structure with guard ring over-voltage protection, enabling fast switching and minimal reverse recovery charge. Its 10,000 V/µs critical dv/dt rating supports stable operation in high-frequency converters.
Thermally, it features a low 3°C/W RθJC, allowing efficient heat transfer to heatsinks in compact power designs. The matte tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in DC/DC flyback or buck output rectification |
| IF | 20 A - Continuous forward current rating at case temperature ≤ 100°C; determines steady-state power handling capacity |
| IFSM | 150 A - Non-repetitive surge current (8.3 ms half-sine); enables robustness against line transients and startup inrush |
| VF | 0.75 V max @ 20 A, 25°C - Low conduction loss directly reduces power dissipation and improves system efficiency |
| RθJC | 3°C/W - Thermal resistance from junction to case; enables predictable heatsink sizing for 20 A continuous operation |
| TJ max | 150°C - Maximum allowable junction temperature; supports operation in under-hood automotive environments |
| IR | 200 µA max @ 45 V, 25°C - Low leakage preserves efficiency in standby and light-load conditions |
Pinout & Package
Package: ITO-220AC - 3-terminal through-hole package with isolated tab (cathode-connected metal base), UL 94V-0 molding compound, and matte tin-plated leads for reliable soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input current entry point | Connected to input rail (e.g., transformer secondary or switch node); must be routed with low-inductance trace |
| Cathode (Tab / Lead 2) | Output current exit point | Electrically connected to metal tab; serves as primary thermal path and circuit return; requires insulated mounting if not referenced to chassis ground |
| Case / Tab | Thermal and electrical cathode terminal | Provides mechanical mounting and thermal interface; electrically tied to cathode; isolation required when mounting to grounded heatsink |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring over-voltage protection | Enhances ruggedness against transient voltage spikes without external snubbers in 48 V automotive systems |
| AEC-Q101 qualified version available (MBRF2045H) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per stress test standards |
| Low 0.75 V forward drop at 20 A | Reduces conduction loss by ~30% vs. comparable silicon diodes, lowering thermal design burden in space-constrained adapters |
| 150 A surge rating (8.3 ms) | Withstands repeated cold-start surges in industrial DC/DC modules without derating or parallel devices |
| UL Recognized (E326243) & RoHS/halogen-free | Meets global safety and environmental compliance for end-product certification in consumer and automotive markets |
Applications
| Automotive DC/DC Converters | Industrial SMPS Output Rectification |
|---|---|
Use Scenario: 12 V to 5 V/3.3 V step-down converter in engine control unit (ECU) power supply. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant buck topology. Use Value: Low VF minimizes heat generation in sealed enclosures; AEC-Q101 option ensures lifetime reliability under thermal cycling. | Use Scenario: Secondary-side rectification in 48 V telecom rectifier modules. IC Role / Device Role / Timing Role: High-current freewheeling diode in phase-shifted full-bridge converter. Use Value: 150 A IFSM handles load dump transients; 3°C/W RθJC enables direct heatsink mounting without thermal interface pads. |
| USB-C PD Adapters | Server VRM Output Stage |
Use Scenario: Output rectification in compact 65 W USB-C power adapter with GaN FETs. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in high-frequency flyback design. Use Value: Fast zero-recovery behavior eliminates reverse recovery loss; 45 V rating matches common 20 V output + margin. | Use Scenario: Point-of-load (POL) rectification in 12 V input server VRM supplying CPU core voltage. IC Role / Device Role / Timing Role: Primary output rectifier in multiphase buck converter with 20 A per phase. Use Value: Single-device 20 A rating simplifies layout vs. paralleled diodes; low leakage (<200 µA) maintains standby efficiency. |
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-MBR2045CT | TO-220AC package, same 20 A/45 V rating, but dual-diode configuration (center-tapped); higher VF (0.82 V typ) | Designed for center-tap transformer topologies; unsuitable for single-ended output rectification without redesign | Select only if dual-diode topology is required; verify pinout compatibility and thermal footprint match |
| ON Semiconductor MBR2045CT | TO-220AB package (non-isolated tab), identical electrical specs, but lacks AEC-Q101 option and UL recognition | Not qualified for automotive use; requires external isolation for heatsink mounting | Prefer for cost-sensitive industrial applications where automotive qualification and UL listing are not mandatory |
Compared with MBRF2045, VS-MBR2045CT offers dual-diode functionality at the expense of higher forward drop and incompatible pinout, while MBR2045CT trades automotive qualification and safety certification for lower cost in non-automotive settings.
Availability
MBRF2045 is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS output stages, and USB-C PD adapters requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant variants.
Supply support for MBRF2045 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 automotive, industrial, and consumer markets since 1979.
The MBRF2045 belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-reliability power conversion in harsh-environment applications including automotive infotainment, body electronics, and industrial motor drives.
FAQ
What is the maximum junction temperature rating for MBRF2045?
The MBRF2045 has a maximum junction temperature (TJ) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet. This rating allows sustained operation in under-hood automotive environments and high-ambient industrial settings when properly heatsinked. Derating curves confirm usable current capacity down to 100°C case temperature.
Does MBRF2045 have AEC-Q101 qualification?
Yes, the MBRF2045H variant is explicitly AEC-Q101 qualified, as confirmed in the ordering information section of the Taiwan Semiconductor datasheet (Version K2105). Standard MBRF2045 is not qualified; only the "H" suffix denotes automotive-grade stress testing and reliability validation.
What is the forward voltage of MBRF2045 at 20 A and 125°C?
The forward voltage of MBRF2045 is 0.65 V maximum at 20 A and junction temperature of 125°C, per the Electrical Specifications table in the Taiwan Semiconductor datasheet. This lower VF at elevated temperature reflects the positive temperature coefficient typical of Schottky diodes and supports stable performance across wide thermal ranges.
Is MBRF2045 compatible with lead-free reflow soldering processes?
Yes, MBRF2045 features matte tin-plated leads compliant with J-STD-002 for solderability, and its ITO-220AC package is rated for lead-free reflow profiles. The UL 94V-0 molding compound withstands peak temperatures up to 260°C for 10 seconds, meeting IPC/JEDEC J-STD-020 moisture sensitivity level (MSL) requirements.
What is the reverse leakage current of MBRF2045 at 125°C?
The reverse leakage current (IR) of MBRF2045 is 15 mA maximum at rated VRRM = 45 V and junction temperature of 125°C, as specified in the Electrical Specifications table. This value is critical for evaluating standby power loss in high-temperature applications such as automotive infotainment power supplies.
MBRF2045 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):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 750 mV @ 20 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 45 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
MBRF2045 C0G FAQ
1.How can I place an order for MBRF2045 C0G through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRF2045 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 MBRF2045 C0G reliable?
The price and inventory of MBRF2045 C0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRF2045 C0G is usually 5 days.
3.What payment methods are accepted for MBRF2045 C0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRF2045 C0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRF2045 C0G?
MBRF2045 C0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRF2045 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 MBRF2045 C0G?
For technical support, including MBRF2045 C0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRF2045 C0G requirements.
6.How does Aetrix verify that MBRF2045 C0G is sourced from the original manufacturer or authorized distributors?
All MBRF2045 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 MBRF2045 C0G meets industry standards.
7.What is the process for return or replacement of MBRF2045 C0G?
All MBRF2045 C0G units undergo pre-shipment inspection (PSI). If there is an issue with MBRF2045 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 MBRF2045 C0G part is unused and in its original packaging.
Return procedure for MBRF2045 C0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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