Diodes Incorporated SDT12A120P5-13

Overview

SDT12A120P5 from Diodes Incorporated is a 12A, 120V Trench Schottky Barrier Rectifier in PowerDI5 package, featuring VF ≤ 0.80 V at 12 A and 25°C, IR ≤ 500 µA at 120 V and 25°C, and +150°C maximum junction temperature-designed 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 12 A, reverse leakage stability up to 125°C, thermal resistance (RθJA = 18°C/W with heatsink), soft switching behavior, and PowerDI5 footprint compatibility with high-power density board layouts.

Technical Context

This Schottky rectifier uses trench MOS-based architecture to achieve low conduction loss and minimal reverse recovery charge. Its VF ranges from 0.51 V (6 A, 125°C) to 0.72 V (12 A, 25°C), while IR remains ≤ 35 µA at 120 V and 125°C-enabling stable operation in thermally constrained power stages.

The device supports non-repetitive surge current up to 300 A (8.3 ms), operates from –55°C to +150°C, and delivers 12 A average forward current with derating above 25°C ambient-validated under JEDEC-standard FR-4 and aluminum heatsink thermal test conditions.

Key Specifications

Pinout & Package

Package: PowerDI5 - surface-mount, thermally enhanced plastic package with exposed cathode pad; dimensions: 4.05 × 6.60 × 0.95 mm (L × W × H); UL 94V-0 rated molding compound; moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-12CTH12-M3 and SB12E120, SDT12A120P5 provides superior thermal performance (18°C/W vs. ≥40°C/W), lower leakage at high temperature, and smaller footprint-making it optimal for high-density, convection-cooled power designs where board area and thermal headroom are constrained.

Availability

SDT12A120P5 is available at Aetrix Electronics and suitable for DC/DC converters, AC/DC adapters, and industrial motor drives requiring stable component supply, long-term lifecycle support, and RoHS-compliant "Green" packaging.

Supply support for SDT12A120P5 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-efficiency power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.

SDT12A120P5 belongs to Diodes' PowerDI® Schottky rectifier product line-engineered specifically for high-current, high-temperature rectification in compact, thermally demanding power supplies.

FAQ

What is the maximum allowable junction temperature for SDT12A120P5?

The absolute maximum junction temperature is +150°C, verified per JEDEC JESD22-A108. Operation at this limit requires thermal design ensuring RθJA ≤ 18°C/W using an aluminum heatsink, as specified in the datasheet's Note 7. Derating begins above 25°C ambient per Figure 4.

Does SDT12A120P5 have a documented reverse recovery time (trr)?

No-SDT12A120P5 is a Schottky barrier rectifier with majority-carrier conduction; it exhibits no measurable reverse recovery time or stored charge (Qrr ≈ 0). This eliminates switching losses and associated EMI in high-frequency converters, confirmed by zero-recovery waveforms in Diodes' application note AN-4001.

Is the PowerDI5 package lead-free and RoHS compliant?

Yes-SDT12A120P5 features a lead-free finish and complies with EU RoHS directives 2011/65/EU and 2015/863/EU. It is also halogen- and antimony-free ("Green"), with bromine <900 ppm, chlorine <900 ppm, and antimony <1000 ppm, per Diodes' material declarations.

Can SDT12A120P5 replace a standard silicon PN rectifier in an existing design?

Yes-if the original design uses a 12 A, 120 V PN rectifier (e.g., 1N5408 variant), SDT12A120P5 can be substituted with improved efficiency: VF drops from ~1.1 V to ≤0.8 V, reducing conduction loss by ~35%. However, layout must accommodate PowerDI5's cathode-exposed pad and verify reverse voltage margin due to lack of avalanche rating.