Diodes Incorporated SBR20U150CTFP

Overview

SBR20U150CTFP from Diodes Incorporated is a 20A dual common-cathode Super Barrier Rectifier in ITO-220AB package, rated for 150V peak reverse voltage, with typical forward voltage of 0.65V at 10A and 125°C, and thermal resistance of 4°C/W junction-to-case - used in high-efficiency AC/DC secondary-side rectification for telecom power supplies and industrial SMPS.

For engineers reviewing the SBR20U150CTFP datasheet, SBR20U150CTFP pinout, SBR20U150CTFP application, or SBR20U150CTFP equivalent, key selection criteria include forward voltage at elevated temperature, surge current capability (200A IFSM), leakage current at 125°C, thermal performance in ITO-220AB, and RoHS/Green compliance status.

Technical Context

This dual-diode rectifier integrates two independent SBR® (Super Barrier Rectifier) die in a single ITO-220AB thermally enhanced package, sharing a common cathode terminal. Each leg supports 10A average forward current and 150V blocking, with soft recovery characteristics minimizing EMI in high-frequency switching converters.

The patented SBR® technology replaces conventional Schottky or fast-recovery PN structures, delivering lower VF than standard Schottkys at high temperature while maintaining low IR - enabling higher efficiency and reduced heatsinking in 100–500kHz flyback and LLC resonant topologies.

Key Specifications

Pinout & Package

Package: ITO-220AB - thermally enhanced variant of TO-220 with electrically isolated metal tab, optimized for surface-mount heatsinking and improved thermal transfer vs. standard TO-220AB (RθJC = 4°C/W vs. 2°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-20CPH15 and NTS20100CT, SBR20U150CTFP delivers the lowest high-temperature VF (0.65V), full Green compliance, and balanced thermal/conduction trade-off - making it optimal for next-gen energy-efficient, environmentally regulated power systems.

Availability

SBR20U150CTFP is available at Aetrix Electronics and suitable for telecom AC/DC adapters, industrial SMPS outputs, LED driver secondary sides, and server PSU hold-up circuits requiring stable component supply, long-lifecycle support, and RoHS/Green compliance.

Supply support for SBR20U150CTFP 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 high-reliability components.

The SBR® Super Barrier Rectifier product line targets high-efficiency, high-temperature power conversion - specifically engineered to replace Schottky and fast-recovery diodes in demanding secondary-side rectification where low VF and stable leakage are critical.

FAQ

What is the difference between SBR20U150CTFP and SBR20U150CT?

The SBR20U150CTFP uses the ITO-220AB package with electrically isolated tab, enabling safe mounting to grounded heatsinks without insulation hardware; the SBR20U150CT uses standard TO-220AB with conductive tab requiring isolation. Both share identical electrical specs, but ITO-220AB offers superior thermal reliability in high-isolation safety designs.

Can SBR20U150CTFP be used in parallel for higher current?

Yes - its matched dual-diode structure and low thermal resistance allow parallel use with current-sharing resistors. However, ensure symmetrical PCB layout and thermal coupling; mismatched heatsinking may cause imbalance exceeding 15% due to VF drift with temperature.

Is the cathode pin internally connected between both legs?

Yes - the device is a dual common-cathode configuration: Pin 2 is the sole cathode terminal electrically connecting both internal diode cathodes. This architecture simplifies output filtering and reduces component count in center-tapped or dual-output topologies.

Does SBR20U150CTFP require derating for capacitive loads?

Yes - per datasheet, average forward current must be derated by 20% when used with capacitive-input filters due to increased peak current stress. At 25°C ambient, maximum usable IO drops from 10A to 8A per leg to maintain reliability and thermal limits.