Microchip Technology APT2X30S20J

Overview

APT2X30S20J from Advanced Power Technology is a dual-die, high-voltage Schottky diode in SOT-227 (ISOTOP®) package, rated for 200 V reverse voltage and 45 A average forward current at TC = 105°C with 0.5 duty cycle. It features ultrafast soft recovery (trr ≤ 1.2 ns at IF = 30 A, diF/dt = –200 A/µs, TC = 25°C), low forward voltage (VF = 0.85 V typ at IF = 30 A), and low junction capacitance (CT = 149 pF at VR = 200 V), enabling use as a parallel or freewheeling diode in high-frequency switchmode power supplies.

For engineers reviewing the APT2X30S20J datasheet, APT2X30S20J pinout, APT2X30S20J application, or APT2X30S20J equivalent, key selection criteria include its dual-anode/dual-cathode terminal configuration, thermal resistance (RθJC = 1.04 °C/W), soft-recovery behavior under high diF/dt, and suitability for 48 V output rectification and UPS snubber circuits where low noise and cooler operation are critical.

Technical Context

The APT2X30S20J integrates two independent Schottky die in a single ISOTOP® module, supporting both parallel and anti-parallel configurations via separate anode and cathode terminals. Its soft reverse recovery minimizes EMI generation during commutation, and the low VF reduces conduction losses in high-current DC-DC stages.

Thermal performance is defined by a low junction-to-case resistance of 1.04 °C/W and transient thermal impedance model validated per Figure 1a/b. The device operates across –55°C to +150°C junction temperature range and withstands non-repetitive surge currents up to 320 A (8.3 ms, TJ = 45°C).

Key Specifications

Pinout & Package

SOT-227 (ISOTOP®) is a 4-terminal, isolated-base metal package with integral mounting holes and thermal interface surface. Anode 1, Anode 2, Cathode 1, and Cathode 2 are electrically independent, enabling flexible parallel, anti-parallel, or dual-channel freewheeling topologies without external isolation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage Schottky diode applications.

Compared with VS-45CPH02-M3 and MBR45200CT, the APT2X30S20J uniquely delivers dual-die isolation, sub-nanosecond soft recovery, and 1.04 °C/W thermal resistance - making it the only option among the three qualified for high-diF/dt, space-constrained, and thermally demanding 48 V system rectification.

Availability

APT2X30S20J is available at Aetrix Electronics and suitable for switchmode power supplies, motor controllers, uninterruptible power supplies, and high-speed rectifiers requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for APT2X30S20J 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

Advanced Power Technology (acquired by Microsemi in 2006, now part of Microchip Technology) specialized in high-performance power semiconductors including Schottky diodes, MOSFETs, and IGBTs for industrial and aerospace applications.

The APT2X30S20J belongs to the ISOTOP®-based high-voltage Schottky diode product line, engineered specifically for high-efficiency, high-reliability rectification in 48 V–200 V DC systems where low noise, soft switching, and thermal robustness are mandatory.

FAQ

What is the maximum junction temperature rating for APT2X30S20J?

The APT2X30S20J has a maximum junction temperature (TJ) rating of +150°C and a storage temperature range of –55°C to +150°C. This rating is validated per the thermal transient impedance model in Figure 1a and supports operation in harsh environments such as industrial motor drives and telecom rectifiers where ambient temperatures exceed 85°C. Derating curves in Figure 7 confirm 45 A IF(AV) is sustainable at TC = 105°C.

Does APT2X30S20J support anti-parallel configuration?

Yes, the APT2X30S20J supports anti-parallel configuration using Anode 1/Cathode 2 and Anode 2/Cathode 1 terminal pairs. Its dual-die ISOTOP® construction provides full electrical isolation between the two Schottky elements, enabling true anti-parallel operation without cross-talk - essential for bidirectional current paths in H-bridge motor controllers and active rectifiers.

What is the reverse recovery charge (Qrr) of APT2X30S20J at 125°C?

The APT2X30S20J exhibits Qrr = 1.0 nC typical at IF = 30 A, diF/dt = –200 A/µs, VR = 133 V, and TC = 125°C (per Dynamic Characteristics table). This low Qrr value - combined with soft recovery - directly reduces switching losses and EMI in high-frequency converters, distinguishing it from conventional silicon diodes with Qrr > 50 nC under identical conditions.

Can APT2X30S20J be used in a parallel diode configuration?

Yes, the APT2X30S20J is explicitly designed for parallel operation: Anode 1 and Anode 2 can be tied together, and Cathode 1 and Cathode 2 can be tied together to form a 90 A equivalent rectifier. Its matched die characteristics and low thermal resistance (1.04 °C/W) ensure balanced current sharing without external ballasting resistors, as confirmed in the "Parallel Diode" application note section of the datasheet.

What mounting torque is recommended for APT2X30S20J's SOT-227 package?

The recommended maximum terminal and mounting torque for the APT2X30S20J's SOT-227 (ISOTOP®) package is 963 g·cm (8.5 in·lb or 0.96 N·m), as specified in the Thermal and Mechanical Characteristics table. Exceeding this torque risks deforming the copper baseplate or damaging internal wire bonds. Mounting must use M4 hex nuts with flat washers and thermal interface material meeting 0.1–0.3 mm thickness specification.