Taiwan Semiconductor Corporation MBRF5100H

Overview

MBRF5100H from Taiwan Semiconductor is an AEC-Q101-qualified 5A, 100V Schottky barrier rectifier in ITO-220AC package, featuring low forward voltage (0.90 V @ 5A, 25°C), high surge capability (120 A), and guard-ring over-voltage protection - deployed in automotive-grade DC/DC converters and SMPS secondary-side rectification.

For engineers reviewing the MBRF5100H datasheet, MBRF5100H pinout, MBRF5100H application, or MBRF5100H equivalent, key selection criteria include its 100 V repetitive peak reverse voltage, 3 °C/W junction-to-case thermal resistance, AEC-Q101 qualification status, and ITO-220AC mechanical compatibility with heatsink-mounting requirements.

Technical Context

This single-die Schottky rectifier uses a planar epitaxial structure with integrated guard ring to suppress edge breakdown and sustain 100 V V_RRM under transient overvoltage conditions. Its low 0.90 V forward drop at 5 A reduces conduction loss in high-frequency switching topologies.

Thermally optimized for through-hole mounting, the ITO-220AC package delivers 3 °C/W R_θJC, enabling reliable operation up to 150 °C junction temperature. Reverse leakage remains ≤100 µA at 25°C and ≤5 mA at 125°C under rated VR.

Key Specifications

Pinout & Package

Package: ITO-220AC - Insulated TO-220 variant with isolated tab, matte tin-plated leads, UL 94V-0 molding compound, and 0.56 N·m maximum mounting torque. Polarity marked on case.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-50SQ045 and MBR5100CT, the MBRF5100H uniquely combines 100 V rating, AEC-Q101 qualification, 3 °C/W thermal resistance, and UL recognition - making it the only option qualified for thermally demanding, safety-critical automotive and industrial DC/DC designs.

Availability

MBRF5100H is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS, and universal AC/DC adapters requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.

Supply support for MBRF5100H 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 discrete manufacturer headquartered in Hsinchu, Taiwan, serving automotive, industrial, and consumer markets since 1979.

The MBRF5100H belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-reliability power conversion in harsh-environment automotive and industrial applications where efficiency, thermal robustness, and safety certification are mandatory.

FAQ

What does the "H" suffix in MBRF5100H signify?

The "H" suffix in MBRF5100H indicates full AEC-Q101 qualification per the Taiwan Semiconductor ordering code convention. This means the MBRF5100H has undergone rigorous stress testing-including temperature cycling, high-temperature reverse bias, and ESD-specifically for automotive power electronics. Unlike standard MBRF5100 variants, the MBRF5100H carries documented qualification evidence required for Tier 1 automotive supply chains.

Is MBRF5100H compatible with standard TO-220 heatsinks?

Yes, the MBRF5100H uses the ITO-220AC package, which shares the same footprint and mounting hole pattern as standard TO-220AC devices. Its electrically isolated tab allows direct mechanical attachment to grounded heatsinks without insulating hardware. Mounting torque must not exceed 0.56 N·m to avoid package damage, and thermal interface material should be applied per JESD 22-A108 guidelines for optimal R_θJC performance.

What is the maximum operating temperature for MBRF5100H in continuous operation?

The MBRF5100H has a maximum junction temperature (T_J) of 150 °C, verified under steady-state conditions with proper heatsinking. At 5 A DC forward current and 25 °C ambient, junction temperature rise is approximately 45 °C (using R_θJC = 3 °C/W and typical R_θCA). Derating is required above 100 °C case temperature per the forward current derating curve in the official datasheet.

Does MBRF5100H meet UL safety standards for end equipment?

Yes, the MBRF5100H is UL Recognized under File #E-326243, confirming compliance with UL 60950-1 and UL 62368-1 for use in information technology and audio/video equipment. This recognition covers flammability (UL 94V-0), terminal solderability (J-STD-002), and whisker resistance (JESD 201 Class 2), enabling direct integration into certified AC/DC adapters and industrial power supplies.

How does the guard ring in MBRF5100H improve reliability?

The guard ring in MBRF5100H is a diffused p-type region surrounding the active Schottky junction that redistributes electric field lines at the silicon edge. This prevents localized avalanche and premature breakdown under high dv/dt transients or reverse-biased surges - extending device lifetime in noisy automotive and industrial environments. It enables the MBRF5100H to sustain 10,000 V/µs critical rate of rise without degradation.