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Taiwan Semiconductor Corporation MBRF2550CT
- Part No.:
- MBRF2550CT
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
MBRF2550CT.pdf
- Description:
- DIODE ARR SCHOT 50V 25A ITO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,292
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Product details
Overview
MBRF2550CT from Taiwan Semiconductor is a dual-die Schottky barrier rectifier in ITO-220AB package, rated for 25 A average forward current, 50 V repetitive peak reverse voltage, and 200 A non-repetitive surge current. It delivers low forward voltage (0.75 V typ. at 12.5 A, 25°C) and operates up to 150°C junction temperature, enabling high-efficiency power conversion in compact SMPS designs.
For engineers reviewing the MBRF2550CT datasheet, MBRF2550CT pinout, MBRF2550CT application, or MBRF2550CT equivalent, key selection factors include its 50 V VRRM, dual-common-cathode configuration, 1 °C/W junction-to-case thermal resistance, and AEC-Q101 qualification availability - critical for automotive-grade DC/DC and adapter reliability validation.
Technical Context
The MBRF2550CT integrates two independent Schottky diodes in a single ITO-220AB thermally optimized package with common cathode connection. Its guard ring structure provides overvoltage protection, while the matte tin-plated leads ensure solderability per J-STD-002 and whisker resistance per JESD 201 Class 2.
Designed for high-frequency switching applications, it supports 10,000 V/µs critical dv/dt rating and exhibits low reverse leakage (≤10 mA at 125°C, rated VR), enabling stable operation under transient thermal stress in 20 kHz square-wave rectification circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum reverse blocking capability without breakdown; defines upper limit for input voltage rails in DC/DC converters. |
| IF | 25 A - Continuous average forward current per diode; determines sustained power-handling capacity in high-current outputs. |
| IFSM | 200 A - Peak non-repetitive surge current (8.3 ms half-sine); enables robustness against inrush and fault transients. |
| VF | 0.75 V (typ., 12.5 A, 25°C) - Low conduction loss directly reduces heat generation and improves system efficiency. |
| RθJC | 1 °C/W - Junction-to-case thermal resistance; allows precise heatsink sizing when mounted to PCB copper or external metalwork. |
| TJ max | 150 °C - Maximum operating junction temperature; supports extended thermal margin in enclosed or high-ambient environments. |
| IR | ≤10 mA (125°C, rated VR) - Reverse leakage current; low value minimizes standby power loss in offline supplies. |
Pinout & Package
Package: ITO-220AB - Thermally enhanced plastic case with integral metal tab for direct heatsinking; UL 94V-0 rated molding compound; polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Tab (Anode 1) | Anode of Diode 1 | Electrically connected to lead frame; requires isolation from chassis unless used as heatsink ground reference. |
| Lead 1 (Anode 2) | Anode of Diode 2 | Independent anode terminal enabling dual-input or phase-split rectification topologies. |
| Lead 2 (Cathode) | Common Cathode | Shared output node for both diodes; simplifies PCB routing in center-tapped or dual-output SMPS designs. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring overvoltage protection | Enhances ruggedness against voltage spikes without external snubbers, reducing BOM count in industrial adapters. |
| AEC-Q101 qualified version available | Validated for automotive underhood applications including infotainment power modules and ADAS DC/DC stages. |
| Low RθJC = 1 °C/W | Enables >20 W dissipation with minimal temperature rise when mounted to ≥10 cm² copper pour, supporting compact thermal design. |
| Matte tin-plated leads | Ensures reliable solder joint formation and long-term intermetallic stability per J-STD-002, critical for high-reliability manufacturing. |
| UL Recognized File # E-326243 | Confirms compliance with safety standards for end-equipment certification in North American markets. |
Applications
| Server PSU Rectification | Automotive DC/DC Converter |
|---|---|
Use Scenario: High-density 48 V to 12 V buck-derived isolated converter in rack-mounted servers. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier providing synchronous secondary-side conduction with shared cathode output. Use Value: 0.75 V forward drop at 12.5 A reduces conduction loss by ~30% vs. standard PN rectifiers, lowering thermal load on heatsinks. | Use Scenario: 12 V battery-fed DC/DC module powering radar sensor electronics in engine bay. IC Role / Device Role / Timing Role: Input rectifier handling cold-crank surges and load-dump transients in automotive-grade power supply. Use Value: 200 A IFSM withstands 100 ms load-dump pulses per ISO 7637-2, eliminating need for parallel devices. |
| Laptop Adapter Secondary Side | Industrial PoE++ Power Sourcing Equipment |
Use Scenario: 20 V output stage in ultra-thin 90 W AC/DC adapter with tight thermal envelope. IC Role / Device Role / Timing Role: Common-cathode dual Schottky enabling interleaved or dual-winding rectification to halve ripple current. Use Value: RθJC = 1 °C/W allows direct mounting to aluminum housing, achieving <65°C case temp at full load without fan. | Use Scenario: 57 V primary-side rectifier in IEEE 802.3bt Type 4 PSE delivering up to 90 W over Category 6A cabling. IC Role / Device Role / Timing Role: High-current, low-VF rectifier handling continuous 1.5 A per pair with minimal voltage drop across cable resistance. Use Value: 50 V VRRM provides 20% margin above 48 V nominal PoE++ open-circuit voltage, ensuring safe operation during cable fault conditions. |
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-25CPH05 | Same ITO-220AB package, 50 V VRRM, but single-diode configuration; VF = 0.72 V (12.5 A, 25°C); no common-cathode topology. | Requires two separate devices to replicate dual-diode functionality; increases PCB area and thermal interface complexity. | Select when discrete anode control or asymmetric current sharing is required; not suitable for space-constrained common-cathode layouts. |
| ON Semiconductor MBR2550CT | Identical electrical specs and ITO-220AB package; same 25 A / 50 V rating and 0.75 V VF; differs only in manufacturer marking and traceability chain. | No functional or layout impact; fully interchangeable in existing designs where sourcing diversity is needed. | Preferred for multi-source procurement strategies; verify lot-level RoHS/halogen-free compliance documentation per batch. |
Compared with VS-25CPH05 and MBR2550CT, the MBRF2550CT uniquely combines dual-die integration with AEC-Q101 qualification path and guard ring protection - making it optimal for automotive and high-reliability industrial rectification where board space, surge immunity, and qualification traceability are jointly constrained.
Availability
MBRF2550CT is available at Aetrix Electronics and suitable for server power supplies, automotive DC/DC converters, laptop adapters, and PoE++ power sourcing equipment requiring stable component supply and long-term lifecycle support.
Supply support for MBRF2550CT 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 global industrial, computing, and automotive markets since 1979.
The MBRF25xxCT series was developed to deliver high-current Schottky rectification with enhanced thermal performance and automotive-grade reliability in standardized through-hole packages - targeting cost-sensitive yet thermally demanding power conversion systems.
FAQ
What is the maximum junction temperature rating for the MBRF2550CT?
The MBRF2550CT has a maximum junction temperature (TJ) rating of +150°C. This allows reliable operation in high-ambient environments such as enclosed power supplies or under-hood automotive locations. The device maintains specified electrical performance up to this limit, and its 1 °C/W junction-to-case thermal resistance enables effective heat transfer when properly mounted to a heatsink or copper plane. Always refer to the derating curve in the official Taiwan Semiconductor datasheet for continuous current limits at elevated temperatures.
Is the MBRF2550CT pin-compatible with other parts in the MBRF25xxCT family?
Yes, all MBRF25xxCT variants - including MBRF2535CT, MBRF2545CT, MBRF2550CT, MBRF2560CT, and up to MBRF25150CT - share identical ITO-220AB package dimensions, pinout, and mechanical footprint. The only differences are VRRM ratings and corresponding forward voltage characteristics. This enables drop-in voltage-scaling upgrades without PCB redesign, provided thermal and surge requirements remain within the new variant's specifications.
Does the MBRF2550CT have AEC-Q101 qualification?
The base MBRF2550CT is not AEC-Q101 qualified; however, the AEC-Q101 qualified version is available as MBRF2550CTH (with "H" suffix). This variant undergoes additional stress testing per AEC-Q101 Rev D, including HTGB, HTRB, and temperature cycling, and is intended for automotive applications requiring component-level reliability validation. Always verify the ordering code suffix and associated qualification documentation before use in automotive designs.
What is the typical forward voltage of the MBRF2550CT at full rated current?
At 25 A and 25°C junction temperature, the MBRF2550CT exhibits a maximum forward voltage (VF) of 0.82 V per diode. At 12.5 A and 25°C - a more typical operating point for continuous duty - the typical VF is 0.75 V. This low conduction loss directly contributes to higher system efficiency and reduced thermal management burden compared to standard PN rectifiers, especially in high-frequency switching topologies.
How is the polarity marked on the MBRF2550CT package?
The MBRF2550CT uses standard ITO-220AB polarity marking: the cathode is indicated by a band or notch near Lead 2 (the common cathode pin), while the metal tab serves as Anode 1 and Lead 1 as Anode 2. The device marking code "MBRF2550CT" is laser-etched on the top surface, and the date code (YWW format) and factory code (e.g., "F") appear adjacent. Polarity must be verified visually before soldering to prevent reverse-bias damage during initial power-up.
MBRF2550CT 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):
- 25A
- Voltage - Forward (Vf) (Max) @ If:
- 750 mV @ 12.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 2 mA @ 50 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AB
MBRF2550CT FAQ
1.How can I place an order for MBRF2550CT through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRF2550CT 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 MBRF2550CT reliable?
The price and inventory of MBRF2550CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRF2550CT is usually 5 days.
3.What payment methods are accepted for MBRF2550CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRF2550CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRF2550CT?
MBRF2550CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRF2550CT 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 MBRF2550CT?
For technical support, including MBRF2550CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRF2550CT requirements.
6.How does Aetrix verify that MBRF2550CT is sourced from the original manufacturer or authorized distributors?
All MBRF2550CT 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 MBRF2550CT meets industry standards.
7.What is the process for return or replacement of MBRF2550CT?
All MBRF2550CT units undergo pre-shipment inspection (PSI). If there is an issue with MBRF2550CT, 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 MBRF2550CT part is unused and in its original packaging.
Return procedure for MBRF2550CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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