Taiwan Semiconductor Corporation MBRF20100CT-Y

Overview

MBRF20100CT-Y from Taiwan Semiconductor is a dual-die Schottky barrier rectifier in ITO-220AB package, rated for 20 A average forward current, 100 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, targeting high-efficiency secondary-side rectification in switched-mode power supplies.

For engineers reviewing the MBRF20100CT-Y datasheet, MBRF20100CT-Y pinout, MBRF20100CT-Y application, or MBRF20100CT-Y equivalent, key selection criteria include verified V_RRM=100 V rating, dual-common-cathode configuration, thermal resistance R_θJC=3.5 °C/W, and RoHS/halogen-free compliance per IEC 61249-2-21.

Technical Context

This device 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 requirements and JESD 201 Class 1A whisker resistance.

The MBRF20100CT-Y exhibits 5 mA maximum reverse leakage (I_R) at 100 V and 125°C, and maintains 0.75 V typical forward voltage (V_F) at 10 A and 125°C - critical for thermal stability in compact DC/DC converter designs operating near thermal limits.

Key Specifications

Pinout & Package

Package: ITO-220AB - Thermally optimized 3-lead molded plastic case with exposed metal tab for direct heatsink attachment; UL 94V-0 rated compound; 1.70 g typical weight; 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-20CPH06-M3 and MBR20100CT, the MBRF20100CT-Y uniquely balances 100 V capability, halogen-free compliance, and validated 3.5 °C/W thermal performance - making it the preferred choice for regulated, thermally constrained 48 V–54 V power systems requiring long-term supply continuity.

Availability

MBRF20100CT-Y is available at Aetrix Electronics and suitable for switching mode power supplies, laptop adapters, and industrial DC/DC converters requiring stable component supply, consistent thermal performance, and regulatory-compliant materials.

Supply support for MBRF20100CT-Y 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 global industrial, computing, and consumer markets since 1979.

The MBRF20100CT-Y belongs to TSC's high-current Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability secondary-side rectification in compact, thermally demanding AC/DC and DC/DC power conversion systems.

FAQ

What is the maximum junction temperature rating for MBRF20100CT-Y?

The MBRF20100CT-Y has a maximum junction temperature (T_J) of +150°C, with operational range from –55°C to +150°C. This rating is confirmed in the Absolute Maximum Ratings table and supports reliable operation in sealed or high-ambient-temperature environments. Derating curves show usable current down to ~12 A at 125°C case temperature. Thermal design must respect the 3.5 °C/W R_θJC to avoid exceeding this limit under full load.

Does MBRF20100CT-Y have a common-cathode or common-anode configuration?

The MBRF20100CT-Y uses a dual common-cathode configuration: Leads 1 and 3 are anodes (A and B), and Lead 2 is the shared cathode terminal. This is explicitly shown in the marking diagram and package outline, and confirmed by the "CT" suffix (Cathode-Tied) in the part number. It enables full-wave rectification and dual-output topologies without external interconnects.

Is MBRF20100CT-Y halogen-free and RoHS compliant?

Yes, MBRF20100CT-Y is both RoHS compliant and halogen-free per IEC 61249-2-21. This is stated in the FEATURES section and reinforced in the Mechanical Data section of the official documentation. The "-Y" suffix denotes halogen-free molding compound, distinguishing it from non-Y variants like MBR20100CT that lack this qualification.

What is the forward voltage specification for MBRF20100CT-Y at 20 A and 125°C?

At 20 A forward current and 125°C junction temperature, the MBRF20100CT-Y has a typical forward voltage (V_F) of 0.85 V and a maximum of 0.95 V, per the Electrical Specifications table. This elevated-temperature V_F value is critical for thermal stability analysis and confirms reduced conduction loss versus silicon alternatives under real-world operating conditions.

What packaging and quantity does MBRF20100CT-Y ship in?

MBRF20100CT-Y ships in ITO-220AB package, packed 50 units per tube, as specified in the Ordering Information section. The "-Y" suffix applies to both the device marking and packaging format. Tube packaging preserves lead integrity and supports automated insertion; no tape-and-reel or bulk options are documented for this variant.