Diodes Incorporated SDT5H100P5-13D

Overview

SDT5H100P5-13D from Diodes Incorporated is a 100 V, 5 A trench Schottky barrier rectifier in PowerDI5 package, featuring 0.62 V max forward voltage at 5 A and 0.1 mA max reverse leakage at 100 V/25°C. It serves as a high-efficiency freewheel or output rectifier in compact DC-DC converters and AC-DC adapters.

For engineers reviewing the SDT5H100P5-13D datasheet, SDT5H100P5-13D pinout, SDT5H100P5-13D application, or SDT5H100P5-13D equivalent, key selection criteria include thermal resistance (18 °C/W with heatsink), soft fast switching behavior, high-temperature reverse leakage stability up to 125°C, and RoHS-compliant green packaging.

Technical Context

This Schottky rectifier uses trench MOS structure to achieve low VF and reduced IR drift across temperature. Its junction-to-ambient thermal resistance is 88 °C/W on standard FR-4 (2 oz Cu) and improves to 18 °C/W with an aluminum heatsink (50 mm × 50 mm × 23 mm), enabling sustained 5 A operation in thermally constrained spaces.

The device exhibits soft reverse recovery with minimal ringing, verified by typical reverse current curves showing <20 µA leakage at 100 V and 125°C. Total capacitance drops from ~10,000 pF at 0 V to ~100 pF at 10 V reverse bias, supporting high-frequency switching up to 1 MHz.

Key Specifications

Pinout & Package

Package: PowerDI5 - surface-mount, thermally enhanced 3-pin plastic package with exposed cathode pad; UL 94V-0 rated, 0.093 g mass, moisture sensitivity level 1.

Key Features

Applications

Availability

SDT5H100P5-13D is available at Aetrix Electronics and suitable for DC-DC converters, AC-DC adapters, and industrial 24 V power supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant green packaging.

Supply support for SDT5H100P5-13D 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 and manufacturing operations across Asia and the US.

The SDT5H100P5 belongs to Diodes' PowerDI® Schottky rectifier product line, engineered specifically for high-efficiency, thermally demanding secondary-side rectification in space-constrained power supplies.

FAQ

What is the thermal performance difference between standard PCB layout and heatsink mounting?

On standard FR-4 with 2 oz copper and minimum recommended pad layout, RθJA is 88 °C/W - limiting continuous current to ~2.2 A at 75°C ambient. With a 50 mm × 50 mm × 23 mm aluminum heatsink, RθJA drops to 18 °C/W, enabling full 5 A operation with ≤45°C junction-to-ambient rise.

Is SDT5H100P5-13D pin-compatible with other PowerDI5 Schottky rectifiers?

Yes - all PowerDI5 Schottky rectifiers share identical mechanical footprint and pinout (Anode–Cathode–Anode). However, electrical parameters differ: e.g., SDT3H100P5 is rated for 3 A, while SDT5H100P5 sustains 5 A with lower VF and higher IFSM (150 A vs. 100 A).

Does this device require snubber circuitry in high-frequency flyback designs?

No snubber is required due to its soft reverse recovery characteristic, confirmed by low ringing in oscilloscope measurements at 100–500 kHz switching. The device's low stored charge and absence of minority-carrier tail current eliminate need for external RC damping networks.

How does reverse leakage behave at elevated temperatures?

IR increases predictably with temperature: 0.1 mA at 25°C, 20 mA at 125°C under 100 V reverse bias. This behavior is stable and repeatable - no thermal runaway observed - making it suitable for high-ambient applications like enclosed LED drivers or motor control enclosures.