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Taiwan Semiconductor Corporation MBRF1550CT
- Part No.:
- MBRF1550CT
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
MBRF1550CT.pdf
- Description:
- DIODE ARR SCHOT 50V 15A ITO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,498
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Product details
Overview
MBRF1550CT from Taiwan Semiconductor is a dual-die Schottky barrier rectifier in ITO-220AB package, rated for 15 A average forward current, 50 V repetitive peak reverse voltage, and 150 A surge current. It delivers low forward voltage (0.75 V typ. at 7.5 A, 25°C) and low reverse leakage (300 µA max. at 25°C), enabling high-efficiency power conversion in compact AC/DC adapters.
For engineers reviewing the MBRF1550CT datasheet, MBRF1550CT pinout, MBRF1550CT application, or MBRF1550CT equivalent, key selection criteria include its 50 V VRRM, dual-common-cathode configuration, 3.5 °C/W junction-to-case thermal resistance, and AEC-Q101 qualification option - critical for automotive-grade SMPS and industrial DC/DC converters requiring robust thermal performance and reliability.
Technical Context
The MBRF1550CT integrates two independent Schottky diodes in a single ITO-220AB thermally enhanced package with common cathode connection. Its guard ring structure provides overvoltage protection, and it supports high dv/dt (10,000 V/µs) to withstand fast-switching transients in high-frequency switching topologies.
Designed for operation from –55°C to +150°C junction temperature, the device maintains low forward voltage across temperature (0.65 V typ. at 7.5 A, 125°C) and exhibits controlled reverse leakage (7.5 mA max. at 125°C), ensuring stable conduction and minimal standby loss in thermally constrained environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum reverse blocking capability without breakdown; defines usable input voltage range in buck-derived or flyback secondary-side rectification. |
| IF | 15 A - Continuous average forward current per diode; supports high-power adapter outputs up to ~75 W with appropriate heatsinking. |
| IFSM | 150 A - Non-repetitive surge rating (8.3 ms half-sine); handles cold-start inrush and transient overload without failure. |
| VF | 0.75 V typ. @ 7.5 A, 25°C - Low conduction loss improves system efficiency and reduces thermal load vs. standard PN rectifiers. |
| RθJC | 3.5 °C/W - Enables direct mounting to heatsink; allows ~4.3 W power dissipation before reaching 150°C junction limit at 25°C case temp. |
| IR | 300 µA max. @ 50 V, 25°C - Low leakage preserves efficiency in standby mode and minimizes voltage droop in hold-up capacitors. |
Pinout & Package
Package: ITO-220AB - Thermally optimized plastic package with isolated metal tab (cathode-connected), matte tin-plated leads, UL 94V-0 molding compound, and 0.56 N·m maximum mounting torque.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Tab (Metal Surface) | Cathode (Common) | Electrically connected to both diode cathodes; serves as primary thermal path and must be electrically isolated from chassis unless referenced to system ground. |
| Lead 1 | Anode 1 | Input terminal for first Schottky diode; used in dual-output or interleaved rectifier configurations. |
| Lead 2 | Anode 2 | Input terminal for second Schottky diode; enables independent control or parallel operation with shared cathode return. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring overvoltage protection | Prevents premature avalanche failure under voltage transients, extending lifetime in unregulated or noisy line inputs. |
| AEC-Q101 qualified version available | Validated for automotive under-hood applications including infotainment power supplies and body control modules. |
| Low forward voltage (0.65 V typ. @ 125°C) | Maintains high conduction efficiency even at elevated temperatures, reducing thermal runaway risk in sealed enclosures. |
| UL Recognized (E-326243) | Meets safety requirements for end-equipment certification in consumer and industrial power adapters. |
Applications
| AC/DC Adapters | Industrial DC/DC Converters |
|---|---|
Use Scenario: 12–24 V output, 30–60 W wall-mounted power adapters for networking equipment and IoT gateways. IC Role / Device Role / Timing Role: Secondary-side synchronous rectification replacement; dual-anode configuration supports split-rail or redundant output designs. Use Value: 0.75 V forward drop reduces conduction loss by ~35% vs. 1N5822, improving no-load efficiency and easing thermal design. | Use Scenario: Isolated 48 V input to 5/12 V outputs in programmable logic controller (PLC) power modules. IC Role / Device Role / Timing Role: Output rectifier in forward or active-clamp forward converters operating at 100–500 kHz switching frequency. Use Value: 150 A surge rating and 10,000 V/µs dv/dt tolerance ensure reliable operation during bus fault recovery and ESD events. |
| Automotive Infotainment Power | Telecom Line Card Supplies |
Use Scenario: 5 V/3.3 V auxiliary rails in head unit and digital radio power supplies meeting AEC-Q101 stress requirements. IC Role / Device Role / Timing Role: Dual-output rectifier feeding separate LDOs or buck controllers; common cathode simplifies PCB layout and grounding. Use Value: AEC-Q101-qualified variant ensures compliance with automotive temperature cycling, humidity, and vibration standards. | Use Scenario: -48 V telecom system backup supplies powering Ethernet PHYs and management controllers. IC Role / Device Role / Timing Role: Reverse-polarity protection and OR-ing diode in hot-swap capable power distribution networks. Use Value: Low 300 µA reverse leakage at 25°C prevents battery drain during standby; 150°C max junction temp supports operation in sealed chassis. |
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-15BQ050 | Same ITO-220AB package, 50 V VRRM, but single-diode; 0.72 V VF @ 7.5 A, 25°C - slightly lower forward drop but no dual-anode flexibility. | Requires two devices for dual-output use; lacks common-cathode integration, increasing board area and thermal interface count. | Select when only one rectifier leg is needed and lowest possible VF is prioritized over integration. |
| ON Semiconductor MBR1550CT | Identical electrical specs and pinout; differs in manufacturing process and qualification - not AEC-Q101 qualified by default, though functionally interchangeable in non-automotive designs. | Approved for industrial/commercial use only; requires requalification if deployed in automotive systems requiring AEC-Q101 traceability. | Choose for cost-sensitive commercial SMPS where AEC-Q101 is not mandated and supply chain diversification is desired. |
Compared with VS-15BQ050 and MBR1550CT, the MBRF1550CT uniquely combines dual-anode integration, AEC-Q101 availability, and guaranteed 3.5 °C/W thermal resistance - making it optimal for space-constrained, thermally demanding, or automotive-qualified dual-rail power supplies.
Availability
MBRF1550CT is available at Aetrix Electronics and suitable for AC/DC adapters, industrial DC/DC converters, and automotive infotainment power supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
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 discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power rectifiers, TVS diodes, and MOSFETs for industrial and automotive markets.
The MBRF15xxCT series was developed to deliver high-current Schottky rectification with enhanced thermal performance and automotive-grade reliability in standardized ITO-220AB packaging for next-generation compact power supplies.
FAQ
What is the maximum junction temperature rating for the MBRF1550CT?
The MBRF1550CT has a maximum junction temperature (TJ) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet (Version J2105). This rating applies across the full operating range and enables deployment in high-ambient environments such as enclosed power supplies or under-hood automotive locations when properly heatsinked. The MBRF1550CT must not exceed this limit during continuous operation or transient surges to ensure long-term reliability.
Does the MBRF1550CT have a common-cathode configuration?
Yes, the MBRF1550CT uses a dual-common-cathode configuration: both internal Schottky dies share a single cathode connection routed to the metal tab, while Anode 1 and Anode 2 are brought out to separate leads. This architecture is confirmed in the pinout diagram and mechanical drawings of the ITO-220AB package in the Taiwan Semiconductor datasheet. The MBRF1550CT's common-cathode topology simplifies PCB layout for dual-output or parallel rectifier designs.
Is the MBRF1550CT RoHS and halogen-free compliant?
Yes, the MBRF1550CT is RoHS compliant and halogen-free in accordance with IEC 61249-2-21, as explicitly stated in the "Features" section of the Taiwan Semiconductor datasheet (Version J2105). The molding compound meets UL 94V-0 flammability rating, and terminals are matte tin plated for lead-free solderability per J-STD-002. These compliance attributes are certified for the MBRF1550CT and documented in TSC's official product documentation.
What is the typical forward voltage of the MBRF1550CT at 15 A and 25°C?
The Taiwan Semiconductor datasheet does not specify a typical forward voltage (VF) for the MBRF1550CT at 15 A and 25°C - only maximum values are provided for higher-voltage variants. However, at 7.5 A and 25°C, VF is 0.75 V (typical), and at 15 A and 25°C, the MBRF1535CT/1545CT variants show 0.84 V (max). For design margining, engineers should use the 0.84 V max value or consult thermal derating curves to estimate MBRF1550CT behavior at full current and elevated temperature.
Can the MBRF1550CT be used as a direct replacement for the MBR1550CT?
The MBRF1550CT and ON Semiconductor MBR1550CT share identical electrical specifications (50 V VRRM, 15 A IF, same ITO-220AB package and pinout), and are functionally interchangeable in commercial applications. However, the MBRF1550CT offers optional AEC-Q101 qualification - a distinction critical for automotive use. So while the MBRF1550CT can replace MBR1550CT in most cases, the reverse is not recommended for AEC-Q101–required designs due to qualification gaps.
MBRF1550CT 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:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AB
MBRF1550CT FAQ
1.How can I place an order for MBRF1550CT through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRF1550CT 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 MBRF1550CT reliable?
The price and inventory of MBRF1550CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRF1550CT is usually 5 days.
3.What payment methods are accepted for MBRF1550CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRF1550CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRF1550CT?
MBRF1550CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRF1550CT 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 MBRF1550CT?
For technical support, including MBRF1550CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRF1550CT requirements.
6.How does Aetrix verify that MBRF1550CT is sourced from the original manufacturer or authorized distributors?
All MBRF1550CT 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 MBRF1550CT meets industry standards.
7.What is the process for return or replacement of MBRF1550CT?
All MBRF1550CT units undergo pre-shipment inspection (PSI). If there is an issue with MBRF1550CT, 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 MBRF1550CT part is unused and in its original packaging.
Return procedure for MBRF1550CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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