Diodes Incorporated MBR20200CTF-G1

Overview

MBR20200CTF-G1 from Diodes Incorporated is a high-voltage dual common-cathode Schottky rectifier in TO-220F-3 package, rated for 200 V reverse voltage, 10 A average forward current per diode leg (20 A total), and 0.90 V max forward voltage at 10 A and +25°C. It delivers low switching losses and low noise in high-frequency SMPS output stages.

For engineers reviewing the MBR20200CTF-G1 datasheet, MBR20200CTF-G1 pinout, MBR20200CTF-G1 application, or MBR20200CTF-G1 equivalent, key selection criteria include its 200 V V_RRM, 150°C junction temperature rating, 150 A non-repetitive surge capability, guard-ring stress protection, and RoHS-compliant green packaging.

Technical Context

This dual Schottky rectifier integrates two independent anode terminals (A1, A2) sharing a common cathode (K), enabling synchronous or interleaved rectification in center-tapped or dual-output topologies. Its low forward voltage and fast recovery eliminate minority-carrier storage delay, making it suitable for 100 kHz–1 MHz switch-mode power supplies.

The device uses platinum-silicide or similar Schottky barrier metallization on N-type epitaxial silicon, with guard-ring termination to suppress edge breakdown at high dv/dt (10,000 V/µs). Thermal resistance is 2.5°C/W (junction-to-case) in the TO-220F-3 package, requiring heatsink mounting for sustained 10 A per leg operation.

Key Specifications

Pinout & Package

Package: TO-220F-3 - Flame-retardant molded plastic housing with insulated back surface (non-conductive tab), matte tin-plated copper leadframe, and 1.69 g mass. Mounting requires mechanical isolation from chassis ground.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage dual Schottky rectifier applications.

Compared with VS-20CPH02-M3 and MBR20200CT, MBR20200CTF-G1 offers superior thermal performance in insulated-mount configurations, guaranteed RoHS 3 compliance, and lower conduction loss-making it optimal for space-constrained, high-efficiency, and environmentally regulated applications.

Availability

MBR20200CTF-G1 is available at Aetrix Electronics and suitable for server power supplies, industrial DC-DC converters, and telecom base station PSUs requiring stable component supply, long-term lifecycle support, and RoHS-compliant green packaging.

Supply support for MBR20200CTF-G1 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in ASE, J-Devices, and Amkor facilities.

The MBR20200CTF-G1 belongs to Diodes' high-voltage Schottky rectifier product line, engineered specifically for high-frequency, high-efficiency power conversion in enterprise, industrial, and communications infrastructure.

FAQ

What is the maximum continuous case temperature for reliable operation?

The MBR20200CTF-G1 supports continuous operation up to +133°C case temperature while delivering full 10 A per diode leg, provided thermal resistance from junction to ambient remains ≤60°C/W. At +133°C case, junction temperature reaches +150°C-the absolute maximum rated value.

Can this part replace a single 20 A Schottky in a center-tapped transformer design?

Yes-its dual-anode/common-cathode topology is purpose-built for center-tapped secondary windings. Each anode connects to one winding end, and the common cathode serves as the positive output, eliminating the need for two separate devices and reducing PCB layout complexity.

Is the TO-220F-3 package electrically insulated from the heatsink?

Yes-the TO-220F-3 variant features a fully insulated plastic back surface, allowing direct mounting to grounded metal heatsinks without thermal pads or insulators. This reduces thermal resistance by ~0.5°C/W compared to standard TO-220-3 with added insulation.

Does this device require snubber circuits in high-frequency operation?

No snubber is required for typical 100–500 kHz operation due to zero reverse recovery charge and low junction capacitance (≈150 pF per leg). However, a 10 Ω/100 pF RC network may be added across each anode–cathode pair if ringing exceeds EMI limits in >1 MHz designs.