Diodes Incorporated SBR60A300CT

Overview

SBR60A300CT from Diodes Incorporated is a 60A dual common-cathode super barrier rectifier rated for 300V peak repetitive reverse voltage, with 0.89V typical forward voltage at 30A/25°C, 5μA max leakage at 300V/25°C, and 32ns typical reverse recovery time - deployed in high-efficiency AC/DC front-end rectification for industrial power supplies.

For engineers reviewing the SBR60A300CT datasheet, SBR60A300CT pinout, SBR60A300CT application, or SBR60A300CT equivalent, key selection criteria include thermal resistance (RθJC = 8°C/W), 175°C junction rating, TO-220AB package mounting compatibility, and soft-switching behavior under high di/dt conditions.

Technical Context

This dual-leg common-cathode rectifier integrates two independent 30A-rated super barrier die in a single TO-220AB thermally optimized package, enabling interleaved or parallel rectification without external current-sharing components. Its patented super barrier structure replaces traditional PN junctions with low-resistance metal-semiconductor interfaces to reduce VF while maintaining low IR.

The device operates up to 175°C junction temperature with stable VF and IR performance across temperature, supported by RθJC = 8°C/W and FR-4 PCB layout guidance. Reverse recovery exhibits softness (low IRR tail) and fast trr (32–50ns), minimizing switching losses and EMI in high-frequency SMPS designs.

Key Specifications

Pinout & Package

Package: TO-220AB - 3-terminal molded plastic case with copper leadframe, matte tin-plated terminals, UL 94V-0 flammability rating, and 1.85g mass. Mounting via center tab (cathode) to heatsink.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-current super barrier rectifier applications.

Compared with VS-60CPH03-M3, SBR60A300CT offers lower thermal resistance and integrated dual-anode convenience; versus MUR6030CT, it delivers significantly lower conduction loss at high current - making it optimal for high-efficiency, high-power rectification where both VF and trr matter.

Availability

SBR60A300CT is available at Aetrix Electronics and suitable for industrial motor drives, server power supplies, solar inverters, and medical imaging systems requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.

Supply support for SBR60A300CT 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, manufacturing, and sales operations across Asia, Europe, and North America.

The SBR® Super Barrier Rectifier product line targets high-efficiency power conversion in industrial, computing, and renewable energy systems where low VF, high-temperature reliability, and soft switching are essential.

FAQ

What is the maximum allowable case temperature for SBR60A300CT during operation?

The device's maximum junction temperature is 175°C, and its thermal resistance junction-to-case is 8°C/W. With typical heatsink interface resistance of 0.5°C/W and ambient up to 70°C, sustained case temperature must remain below 125°C to maintain safe margin. Derating curves in Figure 3 specify current limits based on actual measured case temperature.

Can SBR60A300CT be used in parallel with another identical unit to achieve 120A output?

No - the device is a dual-leg common-cathode rectifier with internal thermal coupling between anodes. Parallel connection of two SBR60A300CT units is not recommended due to mismatched VF drift and unequal current sharing. For >60A, use a single higher-rated part such as SBR80A300CT or implement active current balancing.

Does the "CT" suffix indicate center-tap configuration?

No - "CT" in SBR60A300CT denotes common-cathode topology, not center-tapped winding. The device has two anodes (Pins 1 and 3) and one shared cathode (Pin 2/tab). It is not designed for center-tap transformer secondary connections; it serves dual-leg full-wave rectification or independent leg control.

Is the green molding compound version functionally identical to the standard version?

Yes - the SBR60A300CT-G variant uses halogen-free epoxy matching the electrical, thermal, and mechanical specifications of the standard part. The only difference is compliance with JEDEC JS709B halogen content limits (<900 ppm Cl, <900 ppm Br, <1500 ppm total halogens), verified per material test reports.