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Taiwan Semiconductor Corporation MBRF1550CTH
- Part No.:
- MBRF1550CTH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
MBRF1550CTH.pdf
- Description:
- DIODE ARR SCHOT 50V 15A ITO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,243
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Product details
Overview
MBRF1550CT from Taiwan Semiconductor is a 15A, 50V dual-die Schottky barrier rectifier in ITO-220AB package, featuring 0.75V forward voltage at 7.5A/25°C and 300µA reverse leakage at rated VR/25°C, used in high-efficiency DC-DC converters and automotive-grade power supplies.
For engineers reviewing the MBRF1550CT datasheet, MBRF1550CT pinout, MBRF1550CT application, or MBRF1550CT equivalent, key selection criteria include repetitive peak reverse voltage (50V), surge current capability (150A), thermal resistance (3.5°C/W), AEC-Q101 qualification, and dual-die configuration for full-wave rectification.
Technical Context
This device integrates two independent Schottky diodes in a single ITO-220AB thermally enhanced package, enabling center-tapped transformer full-wave rectification without external paralleling. Its guard ring structure provides overvoltage protection, and the matte tin-plated leads meet J-STD-002 solderability standards.
Designed for operation from −55°C to +150°C junction temperature, the MBRF1550CT delivers low conduction loss with 0.65V typical VF at 7.5A/125°C and maintains <7.5mA IR at 125°C - critical for thermal stability in compact, high-power-density SMPS designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - maximum repetitive reverse blocking voltage per diode; defines safe operating range in rectifier circuits |
| IF(AV) | 15 A - average forward current per diode; supports continuous 15A DC output in dual-diode configuration |
| IFSM | 150 A - non-repetitive surge current (8.3ms half-sine); withstands inrush and transient overload events |
| VF @ 7.5A/25°C | 0.75 V - low forward drop per diode; reduces conduction loss and improves system efficiency |
| IR @ 50V/25°C | 300 µA - low reverse leakage per diode; minimizes standby power loss and thermal drift |
| RθJC | 3.5 °C/W - junction-to-case thermal resistance; enables direct heatsink mounting for high-power dissipation |
| TJ max | +150 °C - maximum junction temperature; supports operation in under-hood automotive environments |
Pinout & Package
Package: ITO-220AB - thermally optimized 3-terminal molded case with isolated tab, UL 94V-0 rated compound, and matte tin-plated leads for reliable soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode 1) | First diode anode | Input terminal for first rectifier leg; connects to transformer secondary or input rail |
| Pin 2 (Cathode Common) | Shared cathode node | Output node for full-wave rectification; carries combined DC output current |
| Pin 3 (Anode 2) | Second diode anode | Input terminal for second rectifier leg; mirrors Pin 1 for center-tapped topology |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements including temperature cycling and HTRB |
| Guard ring overvoltage protection | Enhances ruggedness against voltage transients without external snubbers in 12V/24V systems |
| Dual-die configuration | Enables full-wave rectification in single package - eliminates layout complexity of discrete dual-diode solutions |
| JESD 201 Class 2 whisker resistance | Ensures long-term reliability of tin-plated leads under thermal cycling in industrial control modules |
Applications
| Automotive DC-DC Converters | Industrial SMPS Front Ends |
|---|---|
Use Scenario: 12V-to-5V/3.3V buck-derived converter in engine control units (ECUs) and ADAS domain controllers. IC Role / Device Role / Timing Role: Dual Schottky rectifier providing synchronous rectification in center-tapped transformer topology. Use Value: 0.75V VF at 7.5A/25°C reduces conduction loss by ~35% vs. standard PN diodes, improving thermal margin in sealed enclosures. | Use Scenario: 48V input AC-DC front-end stage in programmable logic controller (PLC) power supplies. IC Role / Device Role / Timing Role: Output rectifier handling 15A continuous load with 150A surge tolerance during motor startup. Use Value: 3.5°C/W RθJC allows direct heatsink mounting without thermal interface pads, simplifying mechanical design. |
| USB-C PD Adapters | Telecom DC-DC Modules |
Use Scenario: Secondary-side full-wave rectification in compact 65W USB-C power adapters with tight thermal constraints. IC Role / Device Role / Timing Role: High-efficiency output rectifier replacing dual discrete Schottkys to reduce BOM count and footprint. Use Value: Dual-die integration cuts PCB area by ~40% versus two separate TO-220 devices while maintaining identical thermal performance. | Use Scenario: Isolated 48V-to-12V DC-DC module in base station remote radio units (RRUs). IC Role / Device Role / Timing Role: Primary output rectifier operating continuously at 125°C ambient with 15A load. Use Value: 7.5mA IR at 125°C ensures minimal standby loss and stable regulation across extended temperature range. |
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-15MQ050N-M3 | Same 50V VRRM, 15A IF, but TO-220AC package with non-isolated tab; RθJC = 4.0°C/W | Requires insulating hardware for heatsink mounting; not AEC-Q101 qualified | Select when cost sensitivity outweighs automotive qualification and thermal performance |
| ON Semiconductor MBR1550CT | Identical electrical specs and ITO-220AB package, but not AEC-Q101 qualified; marking code differs | Lacks automotive stress validation; suitable for commercial/industrial only | Choose for non-automotive designs where AEC-Q101 is unnecessary and legacy sourcing applies |
Compared with VS-15MQ050N-M3 and MBR1550CT, the MBRF1550CT uniquely combines AEC-Q101 qualification, 3.5°C/W thermal resistance, and dual-die ITO-220AB packaging - making it the only option qualified for under-hood automotive rectification with minimal thermal derating.
Availability
MBRF1550CT is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS front ends, and USB-C PD adapters requiring stable component supply, long-lifecycle support, and AEC-Q101 compliance.
Supply support for MBRF1550CT 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 power semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving automotive, industrial, and consumer markets since 1979.
The MBRF15xxCT family targets high-reliability power conversion in space-constrained, thermally demanding environments - specifically engineered for AEC-Q101-compliant automotive subsystems and industrial power supplies.
FAQ
What is the pin configuration of the MBRF1550CT?
The MBRF1550CT uses a 3-pin ITO-220AB package with Pin 1 = Anode 1, Pin 2 = Common Cathode, and Pin 3 = Anode 2. This dual-anode, common-cathode arrangement enables full-wave rectification in center-tapped transformer designs. The metal tab is electrically isolated and thermally conductive, allowing direct heatsink mounting without insulation hardware. Polarity is marked on the device body per datasheet diagram.
Is the MBRF1550CT AEC-Q101 qualified?
Yes, the MBRF1550CT is AEC-Q101 qualified - confirmed by its "H" suffix in the ordering code (MBRF1550CTH) and explicit listing in TSC's qualification documentation. This qualification covers temperature cycling, high-temperature reverse bias, and humidity testing required for automotive under-hood applications. The standard MBRF1550CT (without "H") is not AEC-Q101 qualified.
What is the maximum junction temperature rating for the MBRF1550CT?
The MBRF1550CT has a maximum junction temperature (TJ max) of +150°C, verified across its full operating range from −55°C to +150°C. This rating is supported by its 3.5°C/W junction-to-case thermal resistance and UL 94V-0 molding compound. Derating curves in the datasheet specify 15A average current is maintainable up to 100°C case temperature before linear reduction begins.
How does the MBRF1550CT compare to the MBRF1545CT in terms of reverse voltage rating?
The MBRF1550CT has a repetitive peak reverse voltage (VRRM) of 50V, whereas the MBRF1545CT is rated at 45V. Both share identical forward current (15A), surge rating (150A), package (ITO-220AB), and thermal resistance (3.5°C/W). The 5V higher VRRM of the MBRF1550CT provides additional margin in 48V nominal systems subject to load dump transients, making it preferred for automotive 48V subsystems.
What is the typical forward voltage of the MBRF1550CT at elevated temperature?
At 7.5A and 125°C junction temperature, the MBRF1550CT exhibits a typical forward voltage (VF) of 0.65V per diode - lower than its 25°C value of 0.75V due to the negative temperature coefficient of Schottky diodes. This behavior improves thermal stability in high-ambient applications, as conduction loss decreases with rising temperature, reducing risk of thermal runaway.
MBRF1550CTH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- 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):
- 50 V
- Current - Average Rectified (Io) (per Diode):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 750 mV @ 7.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 300 µA @ 50 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AB
MBRF1550CTH FAQ
1.How can I place an order for MBRF1550CTH through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRF1550CTH 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 MBRF1550CTH reliable?
The price and inventory of MBRF1550CTH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRF1550CTH is usually 5 days.
3.What payment methods are accepted for MBRF1550CTH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRF1550CTH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRF1550CTH?
MBRF1550CTH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRF1550CTH 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 MBRF1550CTH?
For technical support, including MBRF1550CTH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRF1550CTH requirements.
6.How does Aetrix verify that MBRF1550CTH is sourced from the original manufacturer or authorized distributors?
All MBRF1550CTH 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 MBRF1550CTH meets industry standards.
7.What is the process for return or replacement of MBRF1550CTH?
All MBRF1550CTH units undergo pre-shipment inspection (PSI). If there is an issue with MBRF1550CTH, 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 MBRF1550CTH part is unused and in its original packaging.
Return procedure for MBRF1550CTH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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