Diodes Incorporated SBR20M150CTFP

Overview

SBR20M150CTFP from Diodes Incorporated is a 20A, 150V Super Barrier Rectifier in TO-220AB package with common-cathode dual-diode configuration, low 0.69–0.88V forward voltage at 10A/25°C, 200°C max junction temperature, and soft fast switching for high-efficiency AC/DC and DC/DC power conversion in industrial SMPS.

For engineers reviewing the SBR20M150CTFP datasheet, SBR20M150CTFP pinout, SBR20M150CTFP application, or SBR20M150CTFP equivalent, key selection criteria include thermal resistance (2°C/W), repetitive surge rating (180A), reverse leakage (<12µA @ 150V/25°C), and high-temperature stability up to 200°C - critical for compact, high-power-density power supplies.

Technical Context

This dual common-cathode rectifier integrates two super barrier diodes in a single TO-220AB thermally optimized package, enabling synchronous rectification or dual-output configurations without external paralleling. Its soft recovery minimizes EMI in high-frequency switching topologies like LLC resonant converters.

The device operates reliably at TJ = 200°C with derated current (20A @ TC = 175°C), supported by low RθJC (2°C/W) and robust 150V VRRM rating. Reverse leakage remains under 3mA at 150V/125°C, ensuring stable blocking in hot ambient environments.

Key Specifications

Pinout & Package

TO-220AB package with isolated tab (electrically connected to cathode), 3-terminal configuration: Pin 1 (Anode 1), Pin 2 (Cathode Common), Pin 3 (Anode 2). Tab serves as thermal path and electrical connection point for cathode return.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SBRT20M150CT, SBR20M150CTFP offers 50% lower thermal resistance and heavier mechanical mounting; versus MBR20150CT, it delivers superior high-temperature stability and 100× lower reverse leakage at elevated temperatures - decisive for mission-critical power stages.

Availability

SBR20M150CTFP is available at Aetrix Electronics and suitable for industrial SMPS, LED driver secondary sides, motor drive auxiliary supplies, and server intermediate bus converters requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.

Supply support for SBR20M150CTFP 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, specializing in high-performance power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.

The SBR® Super Barrier Rectifier product line targets high-efficiency, high-temperature power conversion applications where traditional Schottky and PN diodes fall short in VF/leakage/temperature trade-offs.

FAQ

Is SBR20M150CTFP pin-compatible with standard TO-220AB dual diodes like MBR20150CT?

Yes - SBR20M150CTFP uses identical TO-220AB mechanical outline and 3-pin common-cathode pinout (A-K-A), enabling direct replacement in existing layouts. However, its lower VF and higher TJ rating may reduce heatsink requirements, and its soft recovery alters snubber design needs.

What is the maximum continuous case temperature for full 20A operation?

Full 20A average current is rated at TC = 175°C per the datasheet's derating curve. Operation above this requires linear derating: e.g., 15A at TC = 190°C. The 200°C TJ limit remains valid, but thermal design must ensure junction stays within spec under worst-case ambient and airflow conditions.

Does the tab of SBR20M150CTFP carry electrical potential, and how should it be mounted?

Yes - the metal tab is electrically connected to the common cathode (Pin 2). It must be mounted to a heatsink using an electrically insulating but thermally conductive pad or washer. Direct metal-to-metal mounting is only acceptable if the heatsink is referenced to the cathode potential in the system.

How does SBR20M150CTFP's soft recovery affect EMI in high-frequency designs?

Its soft reverse recovery suppresses high-frequency ringing during diode turn-off, reducing broadband EMI peaks by 10–15dB compared to fast-recovery PN diodes. This lowers conducted emissions and often eliminates the need for RC snubbers in 100–500kHz flyback or forward converters.