Diodes Incorporated SDT40A60VCTFP

Overview

SDT40A60VCTFP from Diodes Incorporated is a 60 V, 40 A dual common-cathode Trench Schottky rectifier in ITO220AB (Type HE) package, delivering 0.52 V forward voltage at 20 A and 20 µA reverse leakage at 60 V/125°C - optimized for high-efficiency DC-DC converters and AC-DC adapters.

For engineers reviewing the SDT40A60VCTFP datasheet, SDT40A60VCTFP pinout, SDT40A60VCTFP application, or SDT40A60VCTFP equivalent, key selection criteria include low VF stability over temperature, soft-switching behavior, thermal resistance of 4°C/W (junction-to-case), RoHS/Green compliance, and dual-leg parallel rectification capability.

Technical Context

This dual common-cathode Schottky diode integrates two independent 20 A legs sharing a single cathode terminal, enabling synchronous rectification or interleaved output paths. Its Trench process ensures low VF drift across -55°C to +150°C junction range and minimal reverse recovery charge (Qrr not specified but implied by soft, fast switching).

Designed for high-frequency power conversion, it operates with 300 A non-repetitive surge rating and supports DC blocking up to 60 V. Thermal performance is validated on 2"×2" Al board with 50 mm×50 mm×23 mm heatsink, yielding 4°C/W RθJC for the ITO220AB package.

Key Specifications

Pinout & Package

Package: ITO220AB (Type HE), surface-mount compatible through-hole variant with isolated tab, UL 94V-0 molded plastic body, matte tin-plated copper leadframe, and 1.65 g mass.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual common-cathode Schottky rectifier applications.

Compared with VS-40CPH06-M3 and MBR4060CT, SDT40A60VCTFP offers superior high-temperature leakage control (80 µA vs. >500 µA) and Green compliance, while balancing thermal resistance and footprint - ideal for compact, thermally constrained, and environmentally regulated designs.

Availability

SDT40A60VCTFP is available at Aetrix Electronics and suitable for DC-DC converters, AC-DC adapters, telecom power bricks, and automotive infotainment supplies requiring stable component supply, long lifecycle visibility, and RoHS/Green compliance.

Supply support for SDT40A60VCTFP 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 the Americas.

This device belongs to Diodes' Trench Schottky Rectifier product line, engineered specifically for high-efficiency, high-temperature power conversion in space-constrained consumer, industrial, and telecom applications.

FAQ

What is the difference between SDT40A60VCT and SDT40A60VCTFP?

The SDT40A60VCT uses the standard TO220AB (Generic) package with RθJC = 2°C/W and 1.85 g mass, while SDT40A60VCTFP uses the ITO220AB (Type HE) variant featuring an isolated metal tab, RθJC = 4°C/W, 1.65 g mass, and optimized creepage/clearance for high-voltage isolation. Both share identical electrical specs.

Can SDT40A60VCTFP be used in place of a single-anode Schottky diode?

Yes, but only one anode (A1 or A2) should be used with the cathode (K), leaving the other anode unconnected and floating. The unused anode must not be shorted or grounded, as it remains electrically active and could cause leakage or latch-up if biased incorrectly.

Is the cathode pin internally connected to the metal tab?

Yes - in the ITO220AB (Type HE) package, the cathode (K) is electrically bonded to the isolated metal tab. This allows direct thermal coupling to a heatsink without electrical isolation, but requires system-level grounding of the tab to avoid short circuits.

What is the maximum recommended case temperature for continuous operation?

The absolute maximum case temperature is not explicitly rated, but Figure 4 shows IO derates linearly from 20 A at 25°C to 0 A at ~155°C. For reliable 40 A total (20 A/leg) operation, TC must remain ≤80°C to maintain TJ ≤150°C given RθJC = 4°C/W and typical power dissipation of 10.4 W (0.52 V × 20 A).