Diodes Incorporated SBR30M100CT

Overview

SBR30M100CT from Diodes Incorporated is a 30A dual common-cathode Super Barrier Rectifier with 100V peak reverse voltage, optimized for high-efficiency DC/DC conversion in industrial power supplies and automotive engine control units. It delivers VF = 0.73V at 15A/125°C, supports +200°C junction operation, and features soft fast switching with IFSM = 250A surge rating.

For engineers reviewing the SBR30M100CT datasheet, SBR30M100CT pinout, SBR30M100CT application, or SBR30M100CT equivalent, key selection criteria include forward voltage at elevated temperature, thermal resistance (RθJC = 2.4°C/W), leakage current at 125°C (≤3mA), and TO-220AB package compatibility with standard heatsink mounting.

Technical Context

This dual-diode rectifier integrates two independent SBR® elements sharing a common cathode terminal, enabling full-wave center-tap or parallel-output configurations. Its patented super barrier structure replaces traditional PN junctions with low-barrier metal-semiconductor interfaces, reducing forward conduction loss while maintaining low reverse recovery charge (Qrr) and soft recovery behavior.

The device operates across –65°C to +175°C case temperature range and sustains 100V blocking with IR ≤12µA at 25°C and ≤3mA at 125°C. Thermal design leverages direct die-to-case conduction via copper leadframe, with RθJC specified separately for TO-220AB (2.4°C/W) and ITO-220AB (3.0°C/W) packages.

Key Specifications

Pinout & Package

Package: TO-220AB - Molded plastic housing with isolated tab, UL 94V-0 rated, matte tin-plated copper leadframe, 1.85g mass. Mounting requires electrically isolated heatsink interface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-30CPH01-M3 and MUR3010CTG, SBR30M100CT offers the lowest VF at high temperature in TO-220AB, delivering superior thermal efficiency in space-constrained industrial and automotive power stages where 0.73V vs. 0.75V or 0.92V directly impacts system-level thermal design and reliability.

Availability

SBR30M100CT is available at Aetrix Electronics and suitable for industrial switch-mode power supplies, automotive engine control units, renewable energy inverters, and medical diagnostic power systems requiring stable component supply despite its obsolete status.

Supply support for SBR30M100CT 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 was developed to replace traditional fast recovery and Schottky diodes in high-efficiency, high-temperature power conversion, targeting automotive, industrial, and computing applications demanding low VF and rugged thermal performance.

FAQ

Is SBR30M100CT still in active production?

No - Diodes Incorporated has officially discontinued SBR30M100CT (OBSOLETE status per DS30985 Rev. 8-4). However, Aetrix Electronics maintains limited legacy inventory with full traceability and provides last-time-buy support, including batch documentation and extended warranty coverage for qualifying programs.

What is the difference between SBR30M100CT and SBR30M100CTFP?

SBR30M100CT uses the TO-220AB package with an electrically isolated tab, while SBR30M100CTFP uses the ITO-220AB variant featuring enhanced creepage/clearance and 2000VAC isolation between terminals and heatsink. Both share identical electrical specs and pinout but differ in mechanical insulation and thermal resistance (RθJC = 2.4°C/W vs. 3.0°C/W).

Can SBR30M100CT be used in AEC-Q101 qualified designs?

The base SBR30M100CT is not AEC-Q101 certified. However, Diodes offers automotive-grade variants (e.g., SBR30M100CTQ) with PPAP documentation, IATF 16949 manufacturing, and full AEC-Q101 stress testing. For qualification-critical applications, engineers must specify the -Q suffix part number and obtain Diodes' official PPAP package.

How does the SBR® technology improve over standard Schottky rectifiers?

SBR® combines Schottky-like low VF with significantly improved high-temperature leakage performance: IR remains ≤3mA at 125°C/100V, whereas typical Schottkys exceed 50mA under same conditions. This enables reliable operation at +175°C case temperature without thermal runaway, unlike conventional Schottky diodes limited to ≤125°C.