Diodes Incorporated SBRT40V100CT

Overview

SBRT40V100CT from Diodes Incorporated is a 40A dual common-cathode Trench Super Barrier Rectifier (SBR®) in TO220AB package, rated for 100V peak repetitive reverse voltage per leg, with max 0.73V forward voltage at 20A/25°C and 0.65V at 20A/125°C, designed as a high-efficiency rectifier or freewheel diode in DC-DC converters and AC-DC adapters.

For engineers reviewing the SBRT40V100CT datasheet, SBRT40V100CT pinout, SBRT40V100CT application, or SBRT40V100CT equivalent, key selection criteria include ultra-low VF stability across temperature, <0.3mA IR at 100V/25°C and <45mA at 100V/125°C, thermal resistance of 2°C/W (junction-to-case), and TO220AB mechanical compatibility with standard heatsink mounting.

Technical Context

This dual-diode SBR uses patented trench-based super barrier technology to achieve lower forward voltage than Schottky diodes while maintaining superior high-temperature reverse leakage performance. It operates across –55°C to +150°C junction temperature range and supports non-repetitive surge current up to 180A (8.3ms half-sine).

The device is optimized for unidirectional power conversion topologies requiring low conduction loss and thermal robustness - particularly in synchronous rectification replacement roles where conventional Schottkys suffer from thermal runaway at elevated temperatures.

Key Specifications

Pinout & Package

Package: TO220AB - 3-terminal, through-hole, insulated tab, single-row straight lead configuration with center cathode pin. Mounting hole accommodates M3 screw for heatsink attachment.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-efficiency rectifier applications.

Compared with STPS40H100CG and MBR40100CT, SBRT40V100CT delivers 0.02–0.09V lower VF and 4–15× lower IR at 125°C, enabling smaller heatsinks, higher power density, and extended reliability in thermally constrained designs.

Availability

SBRT40V100CT is available at Aetrix Electronics and suitable for DC-DC converters, AC-DC adapters, and industrial motor drives requiring stable component supply, long-lifecycle support, and RoHS-compliant green packaging.

Supply support for SBRT40V100CT 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.

SBRT40V100CT belongs to the Trench SBR® family - engineered specifically for high-efficiency, high-reliability power conversion in computing, industrial, and consumer power supplies where thermal stability and low conduction loss are critical.

FAQ

What is the maximum continuous junction temperature for SBRT40V100CT?

The absolute maximum junction temperature is +150°C, verified per DS36246 Rev. 9–2. Derating begins at +125°C case temperature, with IO reduced linearly to zero at +150°C. Operation at 150°C requires thermal design ensuring RθJA ≤ 3.5°C/W with forced airflow or large heatsink.

Is SBRT40V100CT suitable as a drop-in replacement for standard Schottky rectifiers?

Yes - it shares identical TO220AB footprint, pinout, and soldering profile with MBR40100CT and STPS40H100CG. However, its lower VF and IR require verification of gate-drive timing in synchronous rectifier controllers to avoid shoot-through during transition.

Does SBRT40V100CT meet automotive AEC-Q101 requirements?

No - SBRT40V100CT is not AEC-Q101 qualified. It is rated for industrial temperature range (–55°C to +150°C) and RoHS compliance, but lacks automotive-specific qualification testing such as HTOL, ESD, and vibration. For automotive use, consider Diodes' AEC-Q101-qualified SBR variants like SBRT40U100CTQ.

How does the Trench SBR® structure differ from conventional Schottky diodes?

Trench SBR® uses deep-trench etching and multi-layer barrier metallization to suppress electron injection while maintaining low series resistance. This yields lower VF than planar Schottkys and dramatically reduced thermally activated IR - unlike Schottkys, whose IR doubles every 10°C rise.