Diodes Incorporated SDT12A120P5-7

Overview

SDT12A120P5 from Diodes Incorporated is a 12A, 120V Trench Schottky barrier rectifier in PowerDI5 package, featuring 0.80V max forward voltage at 12A/25°C, 500µA max reverse leakage at 120V/25°C, and +150°C junction temperature rating-optimized 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 low VF stability across temperature, soft fast switching behavior, thermal resistance (18°C/W with heatsink), and RoHS-compliant green packaging for industrial power supply designs.

Technical Context

This Schottky rectifier uses trench MOS structure to reduce forward voltage while maintaining low reverse leakage up to +125°C. Its soft recovery minimizes EMI in high-frequency switching topologies such as synchronous buck and flyback converters.

Thermal performance is defined by two R_θJA values: 88°C/W on standard FR-4 (2oz Cu) and 18°C/W with 50mm × 50mm × 23mm aluminum heatsink-enabling scalable thermal design for compact power stages.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with V12P12-M3/86A and SB12E120, SDT12A120P5 offers lowest RθJA (18°C/W), smallest footprint (PowerDI5), and tightest VF distribution-making it optimal for space-constrained, thermally aggressive 12A rectification tasks.

Availability

SDT12A120P5 is available at Aetrix Electronics and suitable for DC/DC converters, AC/DC adapters, and telecom power supplies 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-performance power management, signal integrity, and protection solutions.

The SDT12A120P5 belongs to Diodes' advanced Schottky rectifier product line, engineered specifically for high-efficiency, high-temperature switching power supplies in industrial and communications infrastructure.

FAQ

What is the maximum allowable junction temperature for continuous operation?

The SDT12A120P5 has a rated maximum junction temperature of +150°C. It maintains full 12A average current capability up to this limit when thermal resistance is maintained at or below 18°C/W via appropriate heatsinking and PCB copper area. Derating begins linearly above +25°C ambient per Figure 4 in the datasheet.

Does the PowerDI5 package require special soldering profile or reflow conditions?

No special profile is required: SDT12A120P5 is qualified for standard lead-free reflow per J-STD-020, with peak temperature ≤260°C and MSL Level 1 handling. The exposed cathode pad must be fully soldered to ≥100 mm² copper area using minimum 6–8 solder paste apertures for reliable thermal transfer.

How does its reverse leakage compare at elevated temperatures?

At VR = 120V, IR is 0.5µA typical at +125°C and 35µA max-demonstrating superior high-temperature stability versus conventional Schottkys. This ensures <1.5mW standby loss in 12V/100µA hold-up circuits even at full-rated junction temperature.

Can SDT12A120P5 replace silicon PN rectifiers in existing designs?

Yes-its 120V VRRM and 12A IF(AV) match common 1N54xx and MURxx series devices. However, due to lower VF and zero reverse recovery charge, layout must minimize parasitic inductance to avoid voltage overshoot; snubbers may be reduced or removed.