Diodes Incorporated SBR20150CTFP

Overview

SBR20150CTFP from Diodes Incorporated is a 20A dual common-cathode Super Barrier Rectifier rated for 150V peak reverse voltage, featuring 0.79V typical forward voltage at 10A/125°C and 2µs fast reverse recovery, optimized for high-efficiency AC-DC front-end rectification in industrial power supplies.

For engineers reviewing the SBR20150CTFP datasheet, SBR20150CTFP pinout, SBR20150CTFP application, or SBR20150CTFP equivalent, key selection criteria include thermal resistance (4°C/W junction-to-case), soft switching behavior, high-temperature leakage performance (≤10mA at 150V/125°C), and ITO-220AB package compatibility with heatsink isolation requirements.

Technical Context

This device integrates two independent 10A-rated rectifying elements in a single ITO-220AB package with electrically isolated tab, enabling dual-output or interleaved bridge configurations. Its patented super barrier structure replaces traditional PN junctions with low-resistance metal-semiconductor interfaces to reduce conduction loss while maintaining avalanche ruggedness.

The rectifier operates across –65°C to +175°C junction temperature range and sustains 2000VAC isolation between terminals and heatsink, supporting reinforced insulation in medical and industrial SMPS designs where creepage/clearance and thermal derating are critical.

Key Specifications

Pinout & Package

Package: ITO-220AB - Insulated TO-220 variant with electrically isolated metal tab (heatsink interface), UL 94V-0 molded plastic body, matte tin-plated copper leadframe, 1.65g mass.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-20CPH07 and MUR20150CT, SBR20150CTFP uniquely combines ITO-220AB isolation, 4°C/W thermal resistance, and sub-0.8V VF at 125°C-enabling smaller heatsinks, fewer safety components, and higher efficiency in space-constrained industrial and medical power systems.

Availability

SBR20150CTFP is available at Aetrix Electronics and suitable for industrial AC-DC power supplies, medical equipment power modules, and telecom remote radio units requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.

Supply support for SBR20150CTFP 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 semiconductor manufacturer specializing in discrete, analog, and mixed-signal devices, with design centers in Asia, Europe, and the US, serving industrial, computing, and communications markets.

SBR20150CTFP belongs to Diodes' Super Barrier Rectifier (SBR®) product line, engineered specifically to replace standard Schottky and ultrafast rectifiers in high-efficiency, high-reliability power conversion where low VF, soft switching, and high-temperature stability are mandatory.

FAQ

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

The ITO-220AB package has a junction-to-case thermal resistance of 4°C/W. With a maximum junction temperature of +175°C and 20A total current producing ~15.8W total power dissipation (based on 0.79V VF), the case temperature must remain ≤115°C to maintain safe operation. This requires a heatsink with thermal resistance ≤5.5°C/W including interface materials.

Can SBR20150CTFP be used in place of a standard TO-220AB dual diode like SBR20150CT?

Yes, but with critical mechanical and thermal differences: the ITO-220AB tab is electrically isolated, whereas TO-220AB's tab is internally connected to the cathode. PCB footprints and mounting hardware must be verified for isolation clearance, and thermal interface design must account for the slightly higher RθJC (4°C/W vs. 2°C/W for TO-220AB).

Does the 2000VAC isolation rating apply to DC voltage stress?

No-the 2000VAC rating is specified for 3-second dielectric withstand testing per IEC 60747-5-5. For DC applications, the maximum continuous isolation voltage is 1414VDC (equivalent peak of 2000VAC sine wave), and long-term reliability requires derating to ≤1000VDC in humid or contaminated environments per IPC-2221B guidelines.

How does SBR20150CTFP's soft switching behavior reduce EMI in high-frequency converters?

Its 2µs reverse recovery with minimal current tail and absence of hard reverse recovery snap-off eliminates high-dI/dt transients that excite parasitic LC resonances. In 300kHz flyback designs, this reduces peak-to-peak noise on the primary switch node by 8–12dB compared to ultrafast rectifiers, easing EMI filter component sizing and layout constraints.