Diodes Incorporated SDT15H50P5-7D

Overview

SDT15H50P5-7D from Diodes Incorporated is a 15A, 50V Trench Schottky barrier rectifier in PowerDI5 package, featuring 0.47V max forward voltage at 15A/125°C and 0.5mA max reverse leakage at 50V/125°C. It serves as a high-efficiency freewheel or output rectifier in compact DC/DC converters and AC/DC adapters.

For engineers reviewing the SDT15H50P5-7D datasheet, SDT15H50P5-7D pinout, SDT15H50P5-7D application, or SDT15H50P5-7D equivalent, key selection criteria include thermal resistance (RθJC = 2°C/W with heatsink), soft-switching behavior, +150°C junction rating, and RoHS-compliant matte tin terminations.

Technical Context

This Schottky rectifier uses trench MOS-based anode structure to achieve low VF while maintaining stable IR across temperature. Its soft recovery minimizes EMI in high-frequency switching topologies such as synchronous buck and flyback converters.

The PowerDI5 package enables direct thermal coupling to PCB copper or external heatsinks, delivering RθJA = 10°C/W under optimized 50mm × 50mm × 23mm aluminum heatsink conditions - critical for space-constrained industrial and adapter designs.

Key Specifications

Pinout & Package

Package: PowerDI5 - surface-mount, thermally enhanced 3-terminal plastic package with exposed cathode pad; UL 94V-0 rated, 0.093g mass, 12mm tape width.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky rectifier applications.

Compared with VS-15BQ040-M3/45 and SB1550, SDT15H50P5-7D delivers the lowest VF at high temperature in the smallest footprint, with best-in-class RθJC for thermally constrained designs - making it optimal for ultra-compact 65W+ adapters and dense server VRMs.

Availability

SDT15H50P5-7D is available at Aetrix Electronics and suitable for DC/DC converters, AC/DC adapters, and industrial PLC power supplies requiring stable component supply, consistent thermal performance, and RoHS-compliant manufacturing.

Supply support for SDT15H50P5-7D 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 SDT15H50P5 belongs to Diodes' PowerDI® Schottky rectifier product line, engineered specifically for high-current, high-temperature switching power supplies where low VF and thermal reliability are critical.

FAQ

What is the maximum continuous forward current at 100°C ambient?

At TA = 100°C, the SDT15H50P5-7D supports approximately 11.5A average forward current, derived from the derating curve in Figure 3 of DS41177 Rev. 3–2. This assumes standard FR-4 PCB with 2oz copper and minimum recommended pad layout; actual current depends on heatsinking and airflow.

Does this device require a gate drive or control signal?

No - the SDT15H50P5-7D is a passive two-terminal Schottky rectifier with no gate or control input. It conducts when anode voltage exceeds cathode voltage by >0.35V and blocks when reverse biased, operating autonomously without external timing or drive circuitry.

Is the PowerDI5 package compatible with automated optical inspection (AOI)?

Yes - the PowerDI5 package features coplanar matte tin-plated terminals and a flat, exposed cathode pad that supports reliable AOI detection. Its standardized 12mm tape width and fiducial-compatible outline meet IPC-A-610 Class 2/3 assembly verification requirements.

Can SDT15H50P5-7D replace a standard silicon PN rectifier in an existing design?

Yes - it can directly replace 50V/15A silicon rectifiers (e.g., 1N5408 variants) in most cases, offering lower VF and faster switching. However, verify reverse leakage tolerance in high-temp circuits and ensure layout accommodates the PowerDI5 footprint and thermal pad soldering requirements.