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Vishay General Semiconductor - Diodes Division MBRF2045CT-E3/45
- Part No.:
- MBRF2045CT-E3/45
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
MBRF2045CT-E3/45.pdf
- Description:
- DIODE ARR SCHOT 45V 10A ITO220AB
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MBRF2045CT-E3/45 from Vishay General Semiconductor is a dual common-cathode Schottky rectifier in ITO-220AB package, rated for 45 V repetitive peak reverse voltage, 20 A total average forward current (10 A per diode), and 150 A peak forward surge current. It delivers low forward voltage drop (0.57 V at 10 A, 125 °C) and operates up to 150 °C junction temperature, enabling high-efficiency rectification in compact DC/DC converters.
For engineers reviewing the MBRF2045CT-E3/45 datasheet, MBRF2045CT-E3/45 pinout, MBRF2045CT-E3/45 application, or MBRF2045CT-E3/45 equivalent, key selection criteria include its dual common-cathode configuration, 5.0 °C/W junction-to-case thermal resistance per diode, RoHS-compliant matte tin-plated leads, and suitability for automotive-grade designs when specified with HE3 suffix.
Technical Context
This device integrates two independent Schottky diodes sharing a common cathode terminal, enabling synchronous or interleaved rectification topologies without external node connection. Its guardring structure provides overvoltage protection, and it meets J-STD-020 MSL Level 1 with 245 °C reflow peak tolerance.
The ITO-220AB package features an isolated heatsink tab rated for 1500 VAC isolation (1 min), and the device supports high-frequency switching due to low junction capacitance (≈100 pF at 4.5 V) and fast recovery characteristics inherent to Schottky architecture.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse blocking capability per diode; defines safe operating limit in buck or flyback secondary-side applications. |
| IF(AV) | 20 A total (10 A per diode at TC = 135 °C) - Continuous DC output current handling capacity under heatsink-cooled conditions. |
| VF | 0.57 V @ 10 A, 125 °C - Low conduction loss directly reduces power dissipation and improves system efficiency in high-current DC/DC stages. |
| IFSM | 150 A @ 8.3 ms half-sine - Withstands transient inrush currents during startup or load dump events without degradation. |
| RθJC | 5.0 °C/W per diode - Enables predictable thermal design when mounted to heatsink; allows ~10 W dissipation per diode at ΔT = 50 °C. |
| TJ max | 150 °C - Extended junction temperature rating supports operation in thermally constrained industrial and automotive under-hood environments. |
Pinout & Package
Package: ITO-220AB - Insulated TO-220 variant with electrically isolated metal tab (1500 VAC isolation), designed for direct heatsink mounting without insulating hardware.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | Input terminal for first Schottky diode; connects to transformer secondary or switch node in synchronous rectifier layout. |
| Pin 2 | Anode 2 | Input terminal for second Schottky diode; enables dual-output or phase-interleaved rectification with shared cathode return. |
| Pin 3 (Tab) | Common Cathode | Electrically isolated metal tab serving as unified cathode node; must be connected to system ground or output rail via heatsink interface. |
Key Features
| Feature | Design Value |
|---|---|
| Guardring overvoltage protection | Prevents premature avalanche breakdown under transient voltage stress, improving reliability in unregulated input stages. |
| Low VF at high temperature | 0.57 V @ 10 A, 125 °C ensures stable conduction loss across automotive temperature range without thermal runaway. |
| MSL Level 1 compliance | Rated for 245 °C peak reflow profile, supporting standard lead-free PCB assembly without moisture sensitivity concerns. |
| RoHS-compliant matte tin plating | Meets J-STD-002 solderability and JESD 22-B102 intermetallic formation requirements for long-term joint integrity. |
Applications
| Server DC/DC VRMs | Automotive ADAS Power Supplies |
|---|---|
Use Scenario: High-density 12 V → 1 V/3.3 V point-of-load conversion in AI accelerator server racks. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacing MOSFETs in multiphase buck converters. Use Value: Reduces conduction loss by 30 % vs. silicon diodes at 10 A, lowering thermal load on VRM heatsinks and enabling higher power density. |
Use Scenario: 12 V input conditioning for radar ECU and camera module power rails in ISO 26262-compliant systems. IC Role / Device Role / Timing Role: Freewheeling diode and polarity protection element in buck-boost pre-regulators. Use Value: AEC-Q101 qualification path available (via HE3 suffix), and 150 °C TJ max supports operation near engine bay electronics. |
| Industrial PLC Power Modules | Telecom Rectifier Boards |
Use Scenario: 24 V/48 V DC input rectification and reverse-polarity protection in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Dual-diode common-cathode configuration simplifies PCB layout for redundant input paths or dual-rail outputs. Use Value: Isolated ITO-220AB tab eliminates need for mica washers or silicone pads, reducing BOM count and assembly cost. |
Use Scenario: Output rectification in telecom -48 V hot-swap power shelves with strict efficiency and footprint constraints. IC Role / Device Role / Timing Role: High-frequency rectifier in phase-shifted full-bridge topology operating above 200 kHz. Use Value: Low junction capacitance (≈100 pF) minimizes switching losses and EMI generation at high frequencies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS2045CT | Same 45 V VRRM, 20 A IF(AV), but RθJC = 4.5 °C/W and VF = 0.60 V @ 10 A, 125 °C; TO-220AC package (non-isolated tab). | Lacks 1500 VAC isolation; requires insulating hardware for heatsink mounting; better thermal resistance but higher forward drop. | Select when thermal performance is prioritized over isolation and board-level safety certification is handled elsewhere. |
| ON Semi MBR2045CT | Identical ratings and ITO-220AB package; VF = 0.59 V @ 10 A, 125 °C; not AEC-Q101 qualified in base E3 version. | No automotive qualification path; lower surge rating (120 A IFSM) limits use in high-transient environments. | Choose for cost-sensitive commercial power supplies where automotive qualification and 150 A surge margin are not required. |
Compared with STPS2045CT and MBR2045CT, the MBRF2045CT-E3/45 uniquely combines 1500 VAC isolation, 150 A surge rating, and a defined AEC-Q101 qualification path (HE3), making it preferred for safety-critical or high-reliability industrial and automotive power stages where layout simplicity and transient robustness are essential.
Availability
MBRF2045CT-E3/45 is available at Aetrix Electronics and suitable for server DC/DC VRMs, automotive ADAS power supplies, and industrial PLC power modules requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for MBRF2045CT-E3/45 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
Vishay Intertechnology is a global semiconductor manufacturer specializing in discrete components, passive elements, and sensors, with leadership in power rectification, precision resistors, and optoelectronics.
The MBRF20xxCT series is part of Vishay's high-current Schottky rectifier product line, engineered for high-efficiency, high-reliability power conversion in space-constrained and thermally demanding applications including computing, automotive, and industrial systems.
FAQ
What is the maximum junction temperature rating for the MBRF2045CT-E3/45?
The MBRF2045CT-E3/45 has a maximum junction temperature (TJ) of +150 °C. This rating is confirmed in the Absolute Maximum Ratings table of the Vishay datasheet (Document Number: 88674), and enables reliable operation in high-ambient environments such as automotive engine compartments or sealed industrial enclosures. Derating curves show usable current down to 0 A at 150 °C case temperature.
Does the MBRF2045CT-E3/45 have electrical isolation between the tab and pins?
Yes, the MBRF2045CT-E3/45 uses the ITO-220AB package, which provides 1500 VAC isolation (1 minute) between the metal tab (common cathode) and all three pins. This isolation is explicitly specified in the "Maximum Ratings" section of the Vishay datasheet and eliminates the need for insulating hardware when mounting to grounded heatsinks in safety-critical designs.
Is the MBRF2045CT-E3/45 suitable for automotive applications?
The base MBRF2045CT-E3/45 is commercial-grade, but Vishay offers the AEC-Q101 qualified version as MBRF2045CTHE3_A/P. The "HE3" suffix denotes automotive qualification, and the datasheet confirms this variant meets AEC-Q101 stress test requirements. For automotive use, specify the HE3 variant-not the E3-to ensure qualification compliance.
What is the forward voltage drop of the MBRF2045CT-E3/45 at 10 A and 125 °C?
The MBRF2045CT-E3/45 exhibits a maximum instantaneous forward voltage (VF) of 0.57 V at 10 A and 125 °C, per the Electrical Characteristics table in the Vishay datasheet. This value is measured per diode and reflects real-world conduction loss under elevated temperature conditions typical in enclosed power supplies.
How many diodes are integrated in the MBRF2045CT-E3/45 and what is their configuration?
The MBRF2045CT-E3/45 integrates two independent Schottky diodes in a common-cathode configuration. Pin 1 and Pin 2 serve as separate anodes; Pin 3 (the isolated metal tab) is the shared cathode. This arrangement is confirmed in the "Circuit configuration" section and pin diagrams of the Vishay datasheet, and supports dual-output or interleaved rectifier topologies.
MBRF2045CT-E3/45 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- TO-220-3 Full Pack, Isolated Tab
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io) (per Diode):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 650 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 45 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AB
MBRF2045CT-E3/45 FAQ
1.How can I place an order for MBRF2045CT-E3/45 through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRF2045CT-E3/45 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 MBRF2045CT-E3/45 reliable?
The price and inventory of MBRF2045CT-E3/45 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRF2045CT-E3/45 is usually 5 days.
3.What payment methods are accepted for MBRF2045CT-E3/45?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRF2045CT-E3/45 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRF2045CT-E3/45?
MBRF2045CT-E3/45 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRF2045CT-E3/45 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 MBRF2045CT-E3/45?
For technical support, including MBRF2045CT-E3/45 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRF2045CT-E3/45 requirements.
6.How does Aetrix verify that MBRF2045CT-E3/45 is sourced from the original manufacturer or authorized distributors?
All MBRF2045CT-E3/45 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 MBRF2045CT-E3/45 meets industry standards.
7.What is the process for return or replacement of MBRF2045CT-E3/45?
All MBRF2045CT-E3/45 units undergo pre-shipment inspection (PSI). If there is an issue with MBRF2045CT-E3/45, 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 MBRF2045CT-E3/45 part is unused and in its original packaging.
Return procedure for MBRF2045CT-E3/45:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MBRF2045CT-E3/45 Tags
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