Diodes Incorporated SBRT20U50SLP-13

Overview

SBRT20U50SLP from Diodes Incorporated is a 50 V, 20 A trench super barrier rectifier (SBR) in PowerDI5060-8 package, featuring ultra-low forward voltage (0.42 V @ 20 A, +25°C), <0.5 mA reverse leakage at 50 V/+125°C, and thermally robust construction with bottom-side heat sink. It serves as a high-efficiency freewheel or blocking diode in DC-DC converters and AC-DC adapters operating under high-temperature, space-constrained conditions.

For engineers reviewing the SBRT20U50SLP datasheet, SBRT20U50SLP pinout, SBRT20U50SLP application, or SBRT20U50SLP equivalent, key selection criteria include its 0.42 V VF at full rated current, 12 °C/W RθJA on Al substrate with heatsink, JEDEC-qualified reliability, and 1.1 mm profile for thin-power designs.

Technical Context

This SBR leverages trench-based super barrier technology to achieve lower forward voltage than Schottky diodes while maintaining superior high-temperature reverse leakage stability-0.5 mA max at 125°C versus typical Schottky degradation beyond 100°C. Its structure enables stable operation up to +150°C junction temperature without thermal runaway risk.

The PowerDI5060-8 package integrates four anode terminals electrically connected on PCB and a bottom-side copper heat sink pad, enabling direct thermal coupling to PCB copper or external heatsink. This architecture supports 20 A average forward current with minimal thermal derating in compact industrial and automotive-grade power supplies.

Key Specifications

Pinout & Package

Package: PowerDI5060-8 - 8-pin surface-mount package with integrated bottom-side thermal pad (exposed cathode), 1.1 mm maximum height, and four anode terminals (pins 1–4) requiring PCB-level connection per datasheet note.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SBRT20U50SLPQ, the base part lacks automotive qualification but offers identical performance in industrial/commercial settings; versus SBRT15U50SLP, it delivers 33% higher continuous current capacity without increasing board area or thermal resistance.

Availability

SBRT20U50SLP is available at Aetrix Electronics and suitable for DC-DC converters, AC-DC adapters, and industrial PLC power supplies requiring stable component supply, JEDEC-qualified reliability, and high-temperature reverse leakage control.

Supply support for SBRT20U50SLP 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 SBRT series targets high-efficiency, high-reliability rectification in space- and thermally-constrained power supplies, combining trench SBR technology with thermally optimized packaging for next-generation compact power conversion.

FAQ

What is the thermal pad connection requirement for SBRT20U50SLP?

The exposed bottom-side thermal pad (cathode) must be fully soldered to a minimum 30 mm × 30 mm copper area on the PCB, with optional aluminum heatsink (48 mm × 35 mm × 80 mm) attached for RθJA = 12 °C/W. Pins 1–4 (anodes) require PCB-level shorting per datasheet Note: All four anode pins must be electrically connected at the printed circuit board.

How does SBRT20U50SLP compare to standard Schottky rectifiers at high temperature?

Unlike conventional Schottky diodes, which exhibit exponential IR increase above 100°C, SBRT20U50SLP maintains ≤0.5 mA leakage at +125°C due to its trench super barrier structure. This eliminates thermal runaway risk in enclosed or high-ambient environments where Schottkys would fail prematurely.

Is SBRT20U50SLP suitable for synchronous rectification replacement?

Yes-it is commonly used as a drop-in replacement for synchronous rectifier MOSFETs in cost-sensitive or layout-constrained designs where gate drive complexity or body diode conduction loss outweighs the efficiency gain. Its 0.42 V VF at 20 A matches or exceeds many SR MOSFETs' effective conduction loss in mid-power applications.

Does SBRT20U50SLP require derating for capacitive loads?

Yes-per datasheet, average forward current must be derated by 20% when used with capacitive loads (e.g., bulk capacitor input filters). For example, 20 A rated current becomes 16 A maximum in such configurations to avoid excessive surge stress during cold-start charging.