Diodes Incorporated SDT10100CTFP

Overview

SDT10100CTFP from Diodes Incorporated is a 10A dual common-cathode Trench Schottky rectifier in ITO220AB package, rated for 100V reverse voltage, with max 0.76V forward voltage at 5A/25°C and 50µA leakage at 100V/25°C. It serves as a high-efficiency freewheel or output rectifier in DC-DC converters and AC-DC adapters operating under high-temperature conditions.

For engineers reviewing the SDT10100CTFP datasheet, SDT10100CTFP pinout, SDT10100CTFP application, or SDT10100CTFP equivalent, key selection criteria include thermal resistance (4°C/W junction-to-case), soft switching behavior, low VF stability up to +125°C, and AEC-Q101 readiness for automotive power stages.

Technical Context

This dual-diode Schottky rectifier uses trench MOS structure to achieve low VF and minimal reverse recovery charge. Each leg operates independently with isolated anodes and shared cathode, enabling synchronous rectification or dual-output DC-DC topologies.

It delivers stable leakage current (<10µA at 100V/125°C) and maintains VF ≤0.68V at 5A/125°C - critical for thermally constrained industrial and automotive power supplies where conduction loss and thermal runaway must be minimized.

Key Specifications

Pinout & Package

Package: ITO220AB - Insulated TO-220 variant with internal isolation between mounting tab and cathode terminal, enabling direct heatsink attachment without electrical isolation hardware.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STPS10H100CG and V10P10-M3/86A, SDT10100CTFP offers the best balance of low VF (0.76V max), certified isolation (ITO220AB), and AEC-Q101 compliance - making it optimal for space-constrained automotive and industrial DC-DC stages where thermal management and safety isolation are co-critical.

Availability

SDT10100CTFP is available at Aetrix Electronics and suitable for DC-DC converters, AC-DC adapters, and automotive body control modules requiring stable component supply, long-lifecycle support, and RoHS-compliant green packaging.

Supply support for SDT10100CTFP 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.

The SDT series targets high-efficiency power conversion in automotive and industrial applications, emphasizing trench Schottky technology for low VF, high-temperature reliability, and AEC-Q101 qualification.

FAQ

What is the maximum junction temperature for continuous operation?

The SDT10100CTFP is rated for continuous operation from −55°C to +150°C junction temperature. Derating begins above TC = 100°C per Figure 4; at TC = 125°C, IO drops to 3.5A per leg. The 150°C limit reflects absolute maximum rating - sustained operation above 135°C requires thermal modeling and validation.

Is the mounting tab electrically isolated from the cathode?

Yes - the ITO220AB package features internal insulation between the metal tab and cathode terminal. The tab is electrically connected only to the cathode (Pin 3), enabling direct heatsink mounting without additional insulators. This differs from standard TO-220AB, where the tab is isolated and requires mica washers.

Does SDT10100CTFP support parallel operation of both legs?

No - the device has a common cathode but independent anodes; parallel operation of legs is not recommended due to mismatched VF and thermal coupling. Each leg is intended for separate circuit paths (e.g., dual-output converters). For higher current, use single-leg devices like SDT20100CTFP (20A total) or parallel discrete diodes with current-sharing resistors.

What is the typical junction capacitance at 10V reverse bias?

Per Figure 5 in DS40724 Rev. 4-2, CT is approximately 220pF at VR = 10V and f = 1MHz. This value decreases to ~80pF at VR = 50V and ~40pF at VR = 100V. Low capacitance supports clean switching in >500kHz applications and minimizes capacitive coupling noise in sensitive analog sections.