Diodes Incorporated DSC05120D1-13

Overview

DSC05120D1-13 from Diodes Incorporated is a 1200 V, 5 A silicon carbide Schottky diode in TO252-2 (Type WX) package, designed for high-efficiency power conversion with low conduction loss and fast reverse recovery. It delivers VF ≤ 1.7 V at 5 A/25°C, IR ≤ 42.7 µA at 1200 V/25°C, and RθJC = 3 °C/W, enabling use as a rectifier or freewheel diode in high-temperature industrial inverters.

For engineers reviewing the DSC05120D1-13 datasheet, DSC05120D1-13 pinout, DSC05120D1-13 application, or DSC05120D1-13 equivalent, key selection criteria include its 1200 V blocking capability, SiC-based low-leakage performance at 175°C, thermal resistance matching to TO252-2 heatsink interfaces, and suitability for PFC and UPS rectification stages where switching loss minimization is critical.

Technical Context

This SiC Schottky diode operates without minority-carrier storage, eliminating reverse recovery charge (Qrr ≈ 0) and enabling zero-voltage switching in hard-switched topologies. Its positive temperature coefficient on VF ensures current sharing stability in parallel configurations.

Rated for TJ = –55°C to +175°C and featuring 60 A non-repetitive surge capability (10 ms half-sine), it supports transient-heavy applications like motor drive DC-link clamping and solar inverter MPPT stages under elevated ambient conditions.

Key Specifications

Pinout & Package

Package: TO252-2 (Type WX), surface-mount, single-die configuration with exposed cathode pad for thermal and electrical connection. Molded green compound (UL 94V-0), matte tin-plated copper leadframe.

Key Features

Applications

Equivalent & Alternatives

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

Compared with C4D05120A and NDSH120N50CG, DSC05120D1-13 offers lowest cost-per-watt in industrial SMPS and UPS due to optimized TO252-2 manufacturability, while maintaining competitive VF and leakage at 175°C - ideal for cost-sensitive, high-volume power supply designs.

Availability

DSC05120D1-13 is available at Aetrix Electronics and suitable for power factor correction, industrial motor drivers, and uninterruptible power supplies requiring stable component supply and long-term industrial lifecycle support.

Supply support for DSC05120D1-13 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 DSC05120D1 belongs to Diodes' high-voltage SiC Schottky diode product line, engineered specifically for industrial power conversion systems demanding high efficiency, reliability, and thermal robustness above 150°C junction temperature.

FAQ

Is DSC05120D1-13 recommended for new designs?

No - Diodes Incorporated explicitly states "DSC05120D1 IS NOT RECOMMENDED FOR NEW DESIGNS" in the datasheet. This reflects planned obsolescence; Aetrix Electronics maintains active inventory for legacy system repair and production continuity, but recommends evaluating C4D05120A or NDSH120N50CG for new projects requiring equivalent 1200 V SiC Schottky performance.

What is the maximum operating temperature and how is it validated?

The DSC05120D1-13 is rated for TJ = –55°C to +175°C, verified per JESD-51 thermal testing with a 35 mm × 22.85 mm × 16 mm aluminum fin heatsink. At 175°C junction, IR rises to 190 µA (still <0.2 mA), and VF increases to 2.6 V - both values confirmed in the Electrical Characteristics table and Fig.5/Fig.3 of DS44280 Rev.4-3.

Does this diode require a gate resistor or snubber circuit?

No - as a majority-carrier SiC Schottky device, DSC05120D1-13 has no reverse recovery charge (Qrr ≈ 0) and exhibits soft, current-controlled turn-off. Snubbers are unnecessary in typical 100–200 kHz hard-switched converters; only minimal RC damping may be needed for ultra-high dI/dt (>500 A/µs) layouts to suppress parasitic ringing.

How does the TO252-2 (Type WX) package differ from standard TO252-2?

Type WX denotes Diodes' proprietary variant with enhanced thermal pad geometry and mold compound formulation for improved thermal transfer and moisture resistance (J-STD-020 Level 1). Dimensions match JEDEC TO252-2 but include tighter tolerances on A2 (1.07 mm typ), b3 (5.33 mm typ), and L5 (1.80 mm typ), as specified in the Package Outline Dimensions table on page 4 of DS44280.