Taiwan Semiconductor Corporation MBRF20100 C0G

Overview

MBRF20100 from Taiwan Semiconductor is a 20A, 100V Schottky barrier rectifier in ITO-220AC package, featuring low forward voltage (0.95 V @ 20A, 25°C), high surge current capability (150 A), and AEC-Q101 qualification option. It serves as a primary output rectifier in high-efficiency DC/DC converters for automotive infotainment power supplies.

For engineers reviewing the MBRF20100 datasheet, MBRF20100 pinout, MBRF20100 application, or MBRF20100 equivalent, key selection criteria include its 100 V reverse voltage rating, 3 °C/W junction-to-case thermal resistance, 5 µA max reverse leakage at 125°C, and compatibility with surface-mount heatsink mounting per 0.56 N·m torque spec.

Technical Context

This single-die Schottky rectifier uses a guard ring structure to enhance over-voltage robustness and supports continuous 20 A forward conduction with derating above 25°C case temperature. Its 10,000 V/µs critical dv/dt rating enables stable operation in fast-switching topologies like synchronous buck converters.

The device operates across –55°C to +150°C junction temperature range and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance requirements. Matte tin-plated leads ensure solderability per J-STD-002, and polarity is marked on the case.

Key Specifications

Pinout & Package

Package: ITO-220AC - 3-terminal through-hole molded package with isolated tab, UL 94V-0 rated compound, matte tin-plated leads, and mechanical polarity marking.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-20BQ100 and MBR20100CT, the MBRF20100 uniquely combines AEC-Q101 qualification, lowest V_F in its class, and single-die simplicity-making it optimal for space-constrained automotive and industrial DC/DC where thermal performance and reliability are prioritized over dual-diode flexibility.

Availability

MBRF20100 is available at Aetrix Electronics and suitable for automotive infotainment power supplies, industrial DC/DC converters, and medical-grade AC adapters requiring stable component supply and long-term lifecycle support.

Supply support for MBRF20100 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, serving global automotive, industrial, and consumer markets since 1979.

The MBRF20100 belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in harsh-environment applications such as automotive body electronics and industrial control systems.

FAQ

What is the maximum junction temperature rating for the MBRF20100?

The MBRF20100 has a maximum junction temperature (T_J) of +150°C, validated across its full operating range from –55°C to +150°C. This rating allows the MBRF20100 to operate reliably in under-hood automotive environments and high-ambient industrial enclosures without active cooling, provided thermal design respects the 3 °C/W R_θJC limit and mounting torque does not exceed 0.56 N·m.

Does the MBRF20100 have AEC-Q101 qualification?

The base MBRF20100 is not automatically AEC-Q101 qualified; however, the variant MBRF20100H is explicitly qualified per AEC-Q101. The "H" suffix denotes automotive-grade screening including HTGB, TC, and HTRB testing. For automotive applications requiring qualification, specify MBRF20100H-not MBRF20100-to ensure compliance with automotive reliability standards.

What is the forward voltage drop of the MBRF20100 at 20 A and 125°C?

At 20 A forward current and 125°C junction temperature, the MBRF20100 exhibits a typical forward voltage (V_F) of 0.87 V, with no maximum specified in the datasheet. This value reflects reduced series resistance at elevated temperature and confirms stable conduction behavior under thermal stress-critical for sustained operation in high-power DC/DC converters where thermal runaway must be avoided.

Can the MBRF20100 be mounted directly to a heatsink?

Yes-the MBRF20100's ITO-220AC package features an electrically active metal tab connected to the cathode, designed for direct mechanical and thermal attachment to a heatsink. Mounting torque must not exceed 0.56 N·m, and electrical isolation (e.g., mica washer or silicone pad) is required if the heatsink is not referenced to the cathode potential. Thermal interface material should be applied uniformly to minimize R_θJC degradation.

What is the reverse leakage current of the MBRF20100 at rated voltage and high temperature?

At 100 V reverse voltage and 125°C junction temperature, the MBRF20100 specifies a maximum reverse leakage current (I_R) of 5 mA. This value is measured under pulsed conditions (PW = 30 ms) and represents worst-case leakage during thermal transients-enabling accurate standby loss budgeting in always-on systems like telematics control units powered by the MBRF20100.