Diodes Incorporated DSC08A065

Overview

DSC08A065 from Diodes Incorporated is a silicon carbide Schottky diode rated for 650 V peak repetitive reverse voltage, 8 A average rectified output current, and 1.5 V maximum forward voltage at +25°C (IF = 8 A). It serves as a high-efficiency rectifier or freewheeling diode in power conversion stages requiring low conduction loss and stable high-temperature operation, such as industrial motor drives and UPS systems.

For engineers reviewing the DSC08A065 datasheet, DSC08A065 pinout, DSC08A065 application, or DSC08A065 equivalent, key selection criteria include its 1.52 µA typical reverse leakage at 650 V/25°C, 3 °C/W junction-to-case thermal resistance, TO220AC (Type WX) package mounting compatibility, and SiC-specific fast recovery with 19 nC total capacitive charge.

Technical Context

This SiC Schottky diode eliminates minority-carrier storage delay, enabling zero reverse recovery charge and minimal switching loss in hard-switched topologies. Its positive temperature coefficient on VF ensures inherent current sharing stability in parallel configurations.

Designed for continuous operation up to +175°C junction temperature, it maintains <230 µA IR at 650 V and +175°C while delivering 47 A non-repetitive surge capability under 10 ms half-sine wave conditions - critical for transient overload resilience in inverters and SMPS front-ends.

Key Specifications

Pinout & Package

Package: TO220AC (Type WX), 3-terminal through-hole package with isolated tab (cathode-connected metal tab), matte tin-plated copper leadframe, UL 94V-0 molded plastic body, weight ≈1.868 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with C4D08120A and NSC08120D, DSC08A065 delivers optimal balance of low VF, proven 650 V reliability, TO220AC mechanical robustness, and cost efficiency for mainstream industrial 400–650 V DC-bus applications.

Availability

DSC08A065 is available at Aetrix Electronics and suitable for power factor correction, industrial motor drivers, and uninterruptible power supplies requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for DSC08A065 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 DSC series targets high-efficiency power conversion systems demanding wide-temperature SiC performance; these diodes were engineered specifically for PFC, inverter, and UPS applications where thermal stability and low-loss rectification are critical.

FAQ

Is DSC08A065 qualified for automotive applications?

No - DSC08A065 is not AEC-Q101 qualified. While it operates reliably from −55°C to +175°C, Diodes Incorporated explicitly states that automotive-grade versions require separate qualification (e.g., PPAP, IATF 16949 manufacturing), and this part is intended for industrial and commercial power systems only.

What is the recommended heatsink interface for the TO220AC tab?

Use thermally conductive, electrically isolating interface materials such as mica washers with silicone grease or ceramic-filled polymer pads (e.g., Bergquist Sil-Pad 2000). Mounting torque must not exceed 0.5 N·m to avoid package cracking; thermal interface resistance should be ≤0.5 °C·in²/W to maintain RθJC benefit.

Can DSC08A065 replace a silicon fast recovery diode in an existing design?

Yes - with layout verification. Its zero QRR eliminates snubber networks, but parasitic inductance in the anode loop becomes more critical. Verify PCB trace inductance <15 nH and confirm gate drive timing margins remain sufficient due to faster voltage transitions across the switching node.

Does DSC08A065 require derating at elevated ambient temperatures?

Yes - derating is mandatory. Per Figure 1, average forward current drops linearly from 8 A at TC = 25°C to ~0 A at TC = 165°C. For 60°C ambient with 10°C rise across thermal interface, maximum usable IO is ~6.2 A; heatsink selection must ensure TC stays within rated range under worst-case load and airflow.