Diodes Incorporated DSC10120D1-13

Overview

DSC10120D1-13 from Diodes Incorporated is a 1200 V, 10 A silicon carbide Schottky diode in TO252-2 (Type WX) package, optimized for high-efficiency power conversion with low forward voltage (1.7 V max at 10 A, 25°C), fast reverse recovery, and stable leakage current (6.6 µA typ at 1200 V, 25°C). It serves as a rectifier, freewheel diode, or blocking diode in high-voltage industrial inverters.

For engineers reviewing the DSC10120D1-13 datasheet, DSC10120D1-13 pinout, DSC10120D1-13 application, or DSC10120D1-13 equivalent, key selection criteria include peak repetitive reverse voltage (1200 V), thermal resistance (3 °C/W junction-to-case), surge current rating (120 A), junction temperature range (–55 to +175°C), and SiC-specific advantages over silicon diodes in high-frequency, high-temperature operation.

Technical Context

This SiC Schottky diode operates without minority-carrier injection, eliminating reverse recovery charge (Q_r) and enabling zero-recovery switching losses. Its positive temperature coefficient on V_F supports parallel operation and inherent current sharing under thermal stress.

Rated for continuous operation up to +175°C junction temperature, it delivers stable reverse leakage (<640 µA at 1200 V, 175°C) and low capacitive charge (32 nC typical at 400 V), making it suitable for hard-switched and resonant topologies operating above 100 kHz.

Key Specifications

Pinout & Package

Package: TO252-2 (Type WX), surface-mount, 3-terminal configuration with exposed cathode pad for thermal and electrical performance. Molded plastic housing meets UL 94V-0 flammability rating; matte tin-plated copper leadframe ensures solderability per MIL-STD-202.

Key Features

Applications

Equivalent & Alternatives

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

Compared with C4D10120D and SCT10120D, the DSC10120D1-13 offers the lowest thermal resistance (3 °C/W) in an SMT package and verified 175°C leakage stability-critical for sealed industrial enclosures where ambient exceeds 85°C.

Availability

DSC10120D1-13 is available at Aetrix Electronics and suitable for power factor correction, industrial motor drivers, and uninterruptible power supplies requiring stable component supply and long-lifecycle support.

Supply support for DSC10120D1-13 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 North America.

The DSC10120D1 belongs to Diodes' high-voltage SiC Schottky diode product line, engineered specifically for industrial-grade power conversion systems demanding high efficiency, thermal robustness, and long-term reliability at 1200 V bus levels.

FAQ

Is DSC10120D1-13 recommended for new designs?

No-Diodes Incorporated explicitly states "THE DSC10120D1 IS NOT RECOMMENDED FOR NEW DESIGNS. PLEASE CONTACT US." This reflects planned obsolescence or migration to newer-generation SiC diodes with improved specs. Existing designs may continue using it under active supply, but new projects should consult Diodes for qualified replacements such as the DSC10120D2 or next-gen equivalents.

What is the maximum allowable case temperature for continuous operation?

The DSC10120D1-13 supports continuous operation up to +175°C junction temperature, with case temperature limited by thermal design. Per the derating curve, average forward current drops from 10 A at 25°C case to ~4.5 A at 150°C case. Reliable operation requires maintaining T_C ≤ 150°C to ensure T_J stays within rated limits under worst-case load and ambient conditions.

Does this diode require a gate resistor or snubber network?

No-unlike silicon PN diodes or MOSFETs, the DSC10120D1-13 is a majority-carrier Schottky device with no gate terminal and negligible reverse recovery. Snubbers are generally unnecessary unless parasitic ringing occurs due to layout inductance; in such cases, a small RC snubber across the diode (e.g., 10 Ω + 100 pF) may dampen oscillations without affecting conduction loss.

How does its leakage current compare at elevated temperatures?

At 1200 V reverse bias, leakage is 6.6 µA typ at 25°C, rising to 162 µA at 125°C and 640 µA at 175°C. This predictable, monotonic increase-characteristic of SiC Schottky diodes-is significantly lower than silicon counterparts at equivalent temperatures and enables stable high-voltage hold-off even in thermally stressed environments.