Diodes Incorporated SDT12A120P5-7D

Overview

SDT12A120P5 from Diodes Incorporated is a 12A, 120V trench Schottky barrier rectifier in PowerDI5 package, delivering VF ≤ 0.80 V at 12 A and IR ≤ 500 µA at 120 V and +25°C, with +150°C maximum junction temperature - ideal for high-efficiency DC/DC converters and AC/DC adapters.

For engineers reviewing the SDT12A120P5 datasheet, SDT12A120P5 pinout, SDT12A120P5 application, or SDT12A120P5 equivalent, key selection criteria include forward voltage drop at high current, reverse leakage stability up to +125°C, thermal resistance under defined PCB layouts, and compatibility with compact surface-mount power supply designs.

Technical Context

This Schottky rectifier uses trench MOS structure to reduce forward conduction loss while maintaining low reverse leakage across temperature. Its soft, fast switching behavior minimizes EMI in high-frequency switching topologies without requiring snubbers.

The device achieves 0.57 V typical VF at 6 A and +25°C, and maintains ≤ 0.70 V at 12 A and +125°C - enabling stable operation in thermally constrained environments such as enclosed wall adapters and PoE-powered equipment.

Key Specifications

Pinout & Package

Package: PowerDI5 - surface-mount, thermally enhanced plastic package with exposed cathode pad; dimensions 4.0 × 6.5 × 1.1 mm; UL 94V-0 rated; moisture sensitivity level 1.

Key Features

Applications

Availability

SDT12A120P5-7D is available at Aetrix Electronics and suitable for DC/DC converters, AC/DC adapters, and industrial power supplies requiring stable component supply, consistent thermal performance, and RoHS-compliant manufacturing.

Supply support for SDT12A120P5-7D 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 SDT12A120P5 belongs to Diodes' PowerDI® Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in space-constrained applications where thermal management and low conduction loss are critical.

FAQ

What is the thermal resistance of SDT12A120P5-7D on a standard FR-4 PCB?

The typical junction-to-ambient thermal resistance (RθJA) is 88 °C/W when mounted on an FR-4 board with 2 oz copper and the minimum recommended pad layout per Diodes' package outline documentation. This value assumes no external heatsink and defines the baseline for ambient temperature derating.

Does SDT12A120P5-7D require a heatsink in 12 A continuous operation?

No external heatsink is required if ambient temperature remains ≤ +55°C and the cathode pad is soldered to ≥ 100 mm² of 2 oz copper. At +70°C ambient, derating to ≤ 8.5 A is necessary per the forward current derating curve in the datasheet.

How does SDT12A120P5-7D compare to standard silicon rectifiers in switching speed?

As a Schottky device, it has no minority-carrier storage delay and exhibits soft, fast reverse recovery - eliminating reverse recovery spikes seen in PN-junction rectifiers. This allows direct replacement in high-frequency (>200 kHz) topologies without snubber redesign.

Is SDT12A120P5-7D suitable for automotive applications?

It is not AEC-Q101 qualified and lacks automotive-grade qualification documentation. While its +150°C TJ rating meets under-hood temperature requirements, Diodes Incorporated does not specify automotive stress test data or PPAP support for this part number.