Diodes Incorporated SBR8U300P5-13

Overview

SBR8U300P5-13 from Diodes Incorporated is an 8.0A, 300V ultra-low forward voltage Super Barrier Rectifier in the PowerDI®5 package, featuring 0.90V VF at 8A/25°C, 30ns reverse recovery time, and 175°C maximum junction temperature-designed for high-frequency rectification in telecom power supplies and DC–DC converters.

For engineers reviewing the SBR8U300P5-13 datasheet, SBR8U300P5-13 pinout, SBR8U300P5-13 application, or SBR8U300P5-13 equivalent, key selection criteria include forward voltage drop at elevated temperature, surge current capability (280A IFSM), thermal resistance (4°C/W RθJC), soft-switching EMI performance, and PowerDI-5 PCB thermal pad layout compliance.

Technical Context

This SBR rectifier employs patented Super Barrier technology to achieve lower VF than Schottky diodes while maintaining higher VRRM and superior high-temperature leakage stability. Its soft reverse recovery (30ns trr) minimizes switching noise in high-frequency topologies.

The PowerDI®5 package integrates a bottom-side thermal pad directly connected to the cathode, enabling low RθJC (4°C/W) and supporting 8A continuous operation with proper PCB copper area. Pins are electrically connected left-to-right on the PCB per marking diagram.

Key Specifications

Pinout & Package

Package: PowerDI®5 - surface-mount, thermally enhanced plastic package with exposed cathode thermal pad on bottom side; dimensions 4.0 × 6.5 × 1.1 mm (L×W×H); UL 94V-0 rated molding compound.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SBRT8U300P5-13, the SBR8U300P5-13 offers optimal balance of surge robustness, thermal performance, and cost for telecom and industrial 300V rectification; MBR830CT-13 lacks both voltage rating and soft-switching capability for this use case.

Availability

SBR8U300P5-13 is available at Aetrix Electronics and suitable for telecom power supplies, industrial DC–DC converters, and redundant power shelf designs requiring stable component supply, long-lifecycle availability, and RoHS-compliant packaging.

Supply support for SBR8U300P5-13 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.

The SBR® product line delivers ultra-low VF rectifiers optimized for high-frequency, high-efficiency power conversion in telecom, computing, and industrial infrastructure-addressing thermal, EMI, and reliability constraints in space-constrained designs.

FAQ

What is the recommended PCB pad layout for thermal performance?

The PowerDI®5 package requires a minimum 100 mm² exposed copper thermal pad connected to internal ground planes via ≥4 thermal vias (0.3mm diameter, filled). Per Diodes DS32111, the suggested layout uses a 3.05 × 5.30 mm central pad with 0.8 mm clearance to adjacent traces. This achieves the specified 4°C/W RθJC and prevents solder voiding during reflow.

How does SBR8U300P5-13 compare to standard Schottky diodes in high-temperature operation?

At 125°C junction temperature, SBR8U300P5-13 maintains VF = 0.76 V and IR = 10 mA, whereas typical Schottkys exceed 1.0 V VF and 100 mA IR under same conditions. This results in ~40% lower conduction loss and negligible thermal runaway risk-critical for sealed telecom modules operating at elevated ambient temperatures.

Is the SBR8U300P5-13 suitable for synchronous rectification circuits?

No-SBR8U300P5-13 is a unidirectional, passive rectifier and cannot replace MOSFET-based synchronous rectifiers. It functions as a freewheeling or output rectifier in non-synchronous topologies (e.g., flyback, forward, half-bridge). For synchronous designs, gate drive timing and bidirectional conduction capability are required-neither supported by this device.

Does the "P5" suffix indicate a specific revision or process node?

Yes-the "P5" denotes Diodes Incorporated's proprietary PowerDI®5 package variant with interlocking clip construction and optimized die attach for enhanced surge current handling. It is not a process node code; all SBR8U300P5-13 units ship in PowerDI®5 per DS32111 Rev. 3-2, with consistent electrical specs and mechanical dimensions across production lots.