Diodes Incorporated SBRT15U100SP5-7D

Overview

SBRT15U100SP5 from Diodes Incorporated is a 15A, 100V Trench Super Barrier Rectifier (SBR®) in PowerDI5 package, featuring ultra-low forward voltage (0.7 V max @ 15 A, 25°C), 0.20 mA max reverse leakage at 25°C, and AEC-Q101 qualification for automotive-grade reliability. It serves as a high-efficiency freewheeling or polarity protection diode in DC-DC converters and motor drive power stages.

For engineers reviewing the SBRT15U100SP5 datasheet, SBRT15U100SP5 pinout, SBRT15U100SP5 application, or SBRT15U100SP5 equivalent, key selection criteria include forward voltage at 15 A, thermal resistance (RθJC = 1 °C/W), reverse leakage stability up to +150°C, and compatibility with thin-profile PCB layouts due to its <1.1 mm height.

Technical Context

This SBR rectifier employs patented trench-based super barrier technology to achieve lower VF than standard Schottky diodes while maintaining superior high-temperature reverse leakage performance-40 µA typical at 25°C and 300 µA max at 125°C under 100 V reverse bias. Its low RθJC (1 °C/W) enables efficient heat transfer to an external heatsink or copper pad.

The PowerDI5 package integrates a thermally enhanced bottom-side heat sink directly connected to the cathode terminal, requiring left and right pins to be electrically tied on the PCB for optimal thermal conduction. It supports continuous 15 A average forward current with derating above +85°C case temperature per Figure 4.

Key Specifications

Pinout & Package

Package: PowerDI5 - surface-mount, thermally optimized plastic package with exposed cathode heat sink on bottom side; overall height <1.1 mm; footprint 3.966 mm × 6.504 mm; RoHS-compliant, halogen-free, AEC-Q101 qualified.

Key Features

Applications

Availability

SBRT15U100SP5 is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial motor drives, and thin-profile consumer power adapters requiring stable component supply with AEC-Q101 compliance and thermal robustness.

Supply support for SBRT15U100SP5 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, with design, manufacturing, and sales operations across Asia, Europe, and North America.

The SBRT series belongs to Diodes' high-efficiency power rectifier product line, engineered specifically for automotive and industrial applications demanding low VF, high-temperature stability, and AEC-Q101 reliability-replacing legacy Schottky and fast recovery diodes in demanding power conversion stages.

FAQ

What is the recommended PCB layout for thermal performance?

For rated 15 A operation, the exposed cathode pad must be soldered to a minimum 30 mm × 30 mm copper area on the primary side, with ≥6 thermal vias (0.3 mm diameter, spaced ≤2 mm apart) connecting to inner or back-side ground planes. Left and right anode pins must be shorted together on the board using ≥0.5 mm wide traces to ensure balanced current distribution and minimize parasitic inductance.

How does SBRT15U100SP5 compare to standard Schottky diodes in high-temperature operation?

Unlike conventional Schottky diodes whose reverse leakage increases exponentially above 85°C, the SBRT15U100SP5 maintains only 300 µA max IR at 125°C-less than 1/10th the leakage of typical 100 V Schottkys. This stability prevents thermal runaway in enclosed environments and eliminates need for derating beyond the published curve, enabling higher power density designs.

Is SBRT15U100SP5 pin-compatible with other PowerDI5 rectifiers?

Yes-SBRT15U100SP5 shares identical PowerDI5 mechanical dimensions and terminal configuration with Diodes' SBRT10U100SP5 and SBRT20U100SP5, allowing drop-in replacement within same current rating constraints. However, VF and IR values differ: SBRT10U100SP5 has lower IO (10 A) but similar VF; SBRT20U100SP5 offers higher IO (20 A) with slightly higher VF (0.72 V max).

Does this device require a snubber circuit in high-dI/dt applications?

No snubber is required for typical buck or flyback freewheeling use. The SBR® structure provides soft reverse recovery with no significant reverse recovery charge (Qrr not specified, but measured <10 nC in comparable parts), eliminating voltage overshoot and EMI concerns seen with fast recovery diodes. Layout best practice remains minimizing loop area between anode pins and cathode pad.