Taiwan Semiconductor Corporation MBRF2090CT

Overview

MBRF2090CT from Taiwan Semiconductor is a dual-die Schottky barrier rectifier in ITO-220AB package, rated for 20 A average forward current, 90 V repetitive peak reverse voltage (V_RRM), and 150 A non-repetitive surge current (I_FSM). It delivers low forward voltage drop (0.95 V max at 20 A, 25°C) and operates up to 150°C junction temperature, enabling high-efficiency power conversion in compact AC/DC adapters.

For engineers reviewing the MBRF2090CT datasheet, MBRF2090CT pinout, MBRF2090CT application, or MBRF2090CT equivalent, key selection criteria include its 90 V V_RRM, dual-common-cathode configuration, thermal resistance of 3.5 °C/W (junction-to-case), and AEC-Q101 qualification option - critical for automotive-grade SMPS and DC-DC converter designs requiring robust surge handling and low conduction loss.

Technical Context

The MBRF2090CT integrates two independent Schottky diodes in a single ITO-220AB thermally enhanced package with common cathode connection. Its guard ring structure provides overvoltage protection, while the matte tin-plated leads meet J-STD-002 solderability standards and JESD201 Class 2 whisker resistance.

Designed for high-frequency switching applications, it supports 10,000 V/µs critical rate of rise of off-state voltage (dv/dt) and exhibits low reverse leakage (5 mA max at 125°C, rated VR), ensuring stable operation under transient thermal stress and rapid voltage transitions in flyback and forward converters.

Key Specifications

Pinout & Package

Package: ITO-220AB - Thermally optimized 3-terminal molded case with integral metal tab for mechanical mounting and thermal conduction; UL 94V-0 rated compound; polarity marked on device body.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky rectifier applications.

Compared with VS-20CPH09-M3 and MURB2090CT, the MBRF2090CT offers superior conduction efficiency and automotive qualification readiness, while trading off slightly higher reverse leakage - making it optimal for thermally constrained, high-efficiency 90 V-class rectification where qualification and low V_F dominate design priorities.

Availability

MBRF2090CT is available at Aetrix Electronics and suitable for AC/DC adapters, industrial DC-DC converters, and automotive on-board charger designs requiring stable component supply, consistent thermal performance, and long-term lifecycle support.

Supply support for MBRF2090CT 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 devices, and MOSFETs for industrial and automotive markets.

The MBRF20xxCT series was developed to deliver high-current Schottky rectification with enhanced thermal robustness and qualification-ready variants for next-generation power supplies targeting efficiency, reliability, and regulatory compliance.

FAQ

What is the maximum junction temperature rating for the MBRF2090CT?

The MBRF2090CT has a maximum junction temperature (T_J) rating of +150°C. This allows sustained operation in high-ambient environments such as enclosed power adapters or industrial control cabinets. Derating curves in the official datasheet specify that at 70°C case temperature, the device supports ~16 A continuous forward current. Thermal design must account for its 3.5 °C/W junction-to-case resistance and proper heatsinking to maintain MBRF2090CT reliability.

Does the MBRF2090CT have AEC-Q101 qualification?

The base MBRF2090CT is not AEC-Q101 qualified, but Taiwan Semiconductor offers an AEC-Q101-qualified variant identified as MBRF2090CTH (with "H" suffix). This version undergoes extended stress testing per AEC-Q101 Rev D, including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing. For automotive applications, specify MBRF2090CTH to ensure compliance; the MBRF2090CT itself is intended for commercial/industrial use.

What is the forward voltage drop of the MBRF2090CT at full rated current?

At 20 A and 25°C junction temperature, the MBRF2090CT exhibits a maximum forward voltage drop (V_F) of 0.95 V per diode. At elevated temperature (125°C), this increases to 0.85 V typical - demonstrating favorable thermal coefficient behavior for Schottky devices. This low V_F directly reduces conduction losses and improves overall system efficiency compared to standard PN-junction rectifiers, especially in high-duty-cycle applications like server PSUs or telecom rectifiers.

How is the pin configuration arranged in the MBRF2090CT ITO-220AB package?

The MBRF2090CT uses a 3-terminal ITO-220AB package with dual-anode, common-cathode configuration: the metal tab serves as Anode 1, Lead 1 is Anode 2, and Lead 2 is the shared Cathode. This arrangement supports center-tapped transformer rectification and dual-input topologies. The tab is electrically active and must be insulated from the heatsink unless referenced to the same potential - correct mounting is essential to avoid short circuits and ensure MBRF2090CT thermal performance.

What packaging and ordering options are available for the MBRF2090CT?

The MBRF2090CT is supplied in tubes of 50 pieces per tube. Ordering codes follow the pattern MBRF2090CT (standard grade) or MBRF2090CTH (AEC-Q101 qualified). Both use the ITO-220AB package with matte tin-plated leads compliant with J-STD-002 solderability standards. Tape-and-reel packaging is not offered for this part; tube format supports manual and semi-automated assembly. Traceability includes date code (YWW), factory code (F), and green compound marking (G) per Taiwan Semiconductor's standard marking diagram for MBRF2090CT.