Diodes Incorporated SBR20U60CTFP

Overview

SBR20U60CTFP from Diodes Incorporated is a 20A, 60V Super Barrier Rectifier in ITO-220AB package, designed for high-efficiency AC/DC and DC/DC power conversion where low forward voltage and soft switching are critical. It delivers VF = 0.47 V at 20A/25°C, supports 200A non-repetitive surge current, and operates up to +150°C junction temperature - deployed in server PSUs and telecom rectifiers.

For engineers reviewing the SBR20U60CTFP datasheet, SBR20U60CTFP pinout, SBR20U60CTFP application, or SBR20U60CTFP equivalent, key selection criteria include forward voltage at rated current, thermal resistance (RθJC = 4°C/W), reverse leakage at elevated temperature, and isolation voltage rating (2000 VAC).

Technical Context

This dual-common-cathode super barrier rectifier uses patented Schottky-like low-VF technology with enhanced high-temperature stability versus standard Schottkys. Its soft recovery minimizes EMI in high-frequency switching topologies such as LLC resonant converters and active clamp forward designs.

Rated for 60V blocking and 20A average output current at TC = +110°C, it features 200A IFSM capability and 3A peak repetitive reverse surge current. The ITO-220AB package provides 2000 VAC isolation between terminals and heatsink, enabling direct mounting without insulating hardware in isolated secondary-side applications.

Key Specifications

Pinout & Package

Package: ITO-220AB - Insulated TO-220 variant with electrically isolated tab (2000 VAC terminal-to-heatsink), matte tin-plated copper leadframe, UL 94V-0 molded plastic body, weight ≈1.65 g.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-current, low-VF rectifier applications.

Compared with MBR2060CT, SBR20U60CTFP delivers 0.28 V lower VF and 2000 VAC isolation but requires insulated mounting hardware for non-isolated packages; SBRT20U60CTFP offers tighter VF control and better thermal interface consistency for high-volume manufacturing.

Availability

SBR20U60CTFP is available at Aetrix Electronics and suitable for server power supplies, telecom DC/DC converters, and industrial motor drive auxiliary supplies requiring stable component supply, RoHS/Green compliance, and verified thermal performance.

Supply support for SBR20U60CTFP 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, serving automotive, industrial, computing, and consumer markets with broad portfolio and vertical integration.

SBR20U60CTFP belongs to the Super Barrier Rectifier (SBR®) product line - engineered specifically to replace standard Schottkys and fast recovery diodes in high-efficiency, high-temperature power conversion where low VF and soft recovery are mandatory.

FAQ

What is the maximum junction temperature and how does it affect derating?

The SBR20U60CTFP has a rated operating junction temperature range of –65°C to +150°C. At TC = +110°C, it delivers full 20A average current; above that, current must be reduced per the derating curve in DS30976. Thermal resistance RθJC = 4°C/W means a 40°C rise occurs per 10W dissipated - critical for heatsink sizing in enclosed systems.

Is the ITO-220AB package truly isolated, and what does 2000 VAC mean?

Yes - the ITO-220AB package features an electrically isolated metal tab tested to 2000 VAC for 3 seconds between terminals and heatsink. This allows direct mechanical mounting to grounded heatsinks without insulating washers or pads, simplifying assembly and improving thermal transfer in isolated secondary-side applications like telecom bricks.

How does SBR technology differ from standard Schottky and fast recovery diodes?

SBR uses a proprietary epitaxial structure that achieves Schottky-level forward voltage (0.47 V @ 20A) while retaining PN-junction-like reverse leakage stability (<100 µA @ 125°C) and soft recovery behavior. Unlike Schottkys, it avoids catastrophic thermal runaway; unlike FRDs, it eliminates hard reverse recovery spikes and associated EMI.

Can SBR20U60CTFP replace MBR2060CT in existing designs?

Yes, mechanically and electrically - same pinout, same footprint, same dual-anode/common-cathode configuration. However, due to its lower VF and isolation rating, layout review is needed: verify heatsink grounding strategy (isolated vs. non-isolated), confirm no overvoltage stress on gate drivers from reduced forward drop, and validate thermal margin with RθJC = 4°C/W instead of typical 2°C/W for TO-220AB.