Taiwan Semiconductor Corporation MBR20200CT-Y

Overview

MBR20200CT-Y from Taiwan Semiconductor is a 20A, 200V dual-die Schottky barrier rectifier in TO-220AB package, featuring 1.23V max forward voltage at 20A/25°C and 0.15mA max reverse leakage at 200V/125°C, used in high-efficiency DC-DC converters and industrial SMPS.

For engineers reviewing the MBR20200CT-Y datasheet, MBR20200CT-Y pinout, MBR20200CT-Y application, or MBR20200CT-Y equivalent, key selection criteria include peak repetitive reverse voltage (200V), thermal resistance (2°C/W junction-to-case), surge current rating (150A), polarity marking, and RoHS/halogen-free compliance for power conversion designs.

Technical Context

This dual-die Schottky rectifier integrates two independent anode-cathode junctions in a single TO-220AB thermally optimized package, enabling center-tap or full-wave bridge configurations without external paralleling. Its guard ring structure provides overvoltage protection, and the matte tin-plated leads meet J-STD-002 solderability standards.

The device operates across -55°C to +150°C junction temperature range with 10,000 V/μs critical dv/dt rating. Thermal performance differs by voltage grade: MBR20200CT-Y exhibits 2°C/W R_θJC, higher than lower-voltage variants (1°C/W for ≤60V parts), reflecting increased die resistance and thermal path design for 200V operation.

Key Specifications

Pinout & Package

Package: TO-220AB - insulated case with center tab (cathode common), matte tin-plated leads, UL 94V-0 molding compound, 1.88g weight, and polarity marked on top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-20CPH02-M3 and MBR20200CT, the MBR20200CT-Y offers certified halogen-free construction and industry-standard TO-220AB compatibility, trading 0.5°C/W higher thermal resistance for direct drop-in replacement in existing designs requiring RoHS/REACH alignment.

Availability

MBR20200CT-Y is available at Aetrix Electronics and suitable for server power supplies, industrial DC-DC converters, and telecom adapters requiring stable component supply, long-lifecycle support, and halogen-free compliance.

Supply support for MBR20200CT-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 Company (TSC) is a vertically integrated Taiwanese manufacturer specializing in discrete power semiconductors, including Schottky rectifiers, MOSFETs, and TVS devices, with ISO/TS 16949 and IATF 16949 certifications.

The MBR20xxCT-Y series targets high-efficiency, high-reliability AC-DC and DC-DC power conversion in industrial, computing, and communications equipment, emphasizing thermal robustness, surge resilience, and environmental compliance.

FAQ

What is the maximum junction temperature rating for MBR20200CT-Y?

The MBR20200CT-Y has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet Version B2104. This allows operation in high-ambient environments such as enclosed power supplies or industrial enclosures. Derating curves confirm 20A continuous current is sustainable up to 100°C case temperature when mounted on a properly sized heatsink. The MBR20200CT-Y must not exceed this limit to ensure long-term reliability and avoid parametric shift.

Does MBR20200CT-Y have a common-cathode configuration?

Yes, the MBR20200CT-Y uses a common-cathode configuration: both internal Schottky dies share a single cathode connection at the center tab, with separate anode terminals on Lead 1 and Lead 2. This arrangement is explicitly confirmed in the TO-220AB marking diagram and mechanical data section of the Taiwan Semiconductor datasheet. The MBR20200CT-Y is therefore suited for center-tapped transformer rectification or dual-output DC-DC designs where shared cathode routing simplifies PCB layout and thermal management.

What is the forward voltage specification for MBR20200CT-Y at full load and elevated temperature?

At 20A forward current and 125°C junction temperature, the MBR20200CT-Y has a maximum forward voltage (V_F) of 1.10V, per the Electrical Specifications table in the Taiwan Semiconductor datasheet. This value is critical for thermal modeling, as it reflects real-world conduction loss under worst-case operating conditions. The MBR20200CT-Y's V_F increases only modestly (+0.13V) from 25°C to 125°C, confirming stable Schottky behavior and predictable power dissipation in thermally constrained applications.

Is MBR20200CT-Y halogen-free and RoHS compliant?

Yes, the MBR20200CT-Y is both RoHS compliant and halogen-free in accordance with IEC 61249-2-21, as stated in the Features section of the official Taiwan Semiconductor datasheet. The "-Y" suffix specifically denotes this environmental compliance, distinguishing it from non-halogen-free variants like MBR20200CT. This makes the MBR20200CT-Y suitable for export to EU, Japan, and other regulated markets where halogen content restrictions apply to printed wiring boards and electronic assemblies.

What is the thermal resistance from junction to case (R_θJC) for MBR20200CT-Y?

The junction-to-case thermal resistance (R_θJC) for MBR20200CT-Y is 2°C/W, as specified in the Thermal Performance table of the Taiwan Semiconductor datasheet. This value applies to all variants rated 90V and above in the MBR20xxCT-Y family. It is measured under standard test conditions with proper mounting torque (≤0.56 N·m) and thermal interface material. Accurate heatsink sizing for the MBR20200CT-Y must use this 2°C/W figure-not the 1°C/W value assigned to lower-voltage variants-to avoid thermal saturation at 20A continuous current.