Diodes Incorporated DSC04C065D1-13

Overview

DSC04C065D1 from Diodes Incorporated is a silicon carbide Schottky diode rated for 650 V peak repetitive reverse voltage and 4 A average rectified output current, with a maximum forward voltage of 1.7 V at 4 A and +25°C. It serves as a high-efficiency rectifier, freewheel diode, or blocking diode in power factor correction circuits, industrial motor drivers, and SMPS topologies operating up to +175°C junction temperature.

For engineers reviewing the DSC04C065D1 datasheet, DSC04C065D1 pinout, DSC04C065D1 application, or DSC04C065D1 equivalent, key selection criteria include its low 0.5 µA typical reverse leakage at 650 V and +25°C, 5 °C/W junction-to-case thermal resistance, fast reverse recovery, positive temperature coefficient on VF, and TO252 (Type WX) package compatibility with high-power thermal management.

Technical Context

This SiC Schottky diode eliminates minority-carrier storage delay, enabling zero reverse recovery charge (Qrr ≈ 0) and near-ideal switching behavior. Its unipolar conduction mechanism delivers stable VF over temperature and negligible reverse recovery loss-critical for high-frequency, high-efficiency PFC and inverter stages.

The device operates across –55°C to +175°C with a 28 A non-repetitive peak surge current rating and exhibits a 11 nC total capacitive charge (Qc) at 400 V reverse bias. Its junction capacitance decreases from 150 pF at 0.1 V to 30 pF at 40 V, supporting high-speed switching in hard-switched and resonant topologies.

Key Specifications

Pinout & Package

Package: TO252 (Type WX), surface-mount, 3-terminal molded plastic package with exposed cathode pad for thermal and electrical performance. Dimensions conform to JEDEC MS-012AC standard; weight ≈ 0.310 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with C4D04065A and SCT3004AL, the DSC04C065D1 balances competitive VF, industry-standard TO252 thermal performance, and RoHS/Green compliance without requiring layout redesign-making it optimal for drop-in upgrades in existing TO252-based SMPS and motor drive platforms.

Availability

DSC04C065D1 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 DSC04C065D1 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, high-reliability power conversion applications, specifically engineered to replace silicon rectifiers in 650 V-class PFC, inverter, and SMPS designs where thermal stability and switching loss reduction are critical.

FAQ

What is the maximum allowable case temperature for continuous operation?

The DSC04C065D1 supports continuous operation up to +175°C junction temperature. Its case temperature limit depends on thermal design: at 4 A IO, the datasheet's Figure 1 shows derating begins above +25°C case temperature, reaching ~2.2 A at TC = +100°C. Proper heatsinking per the 50 mm × 50 mm copper pad requirement is mandatory to sustain rated current at elevated ambient conditions.

Does this diode require a gate resistor or driver circuit?

No-DSC04C065D1 is a passive two-terminal Schottky diode with no gate terminal or control interface. It conducts automatically when forward-biased and blocks when reverse-biased. Unlike MOSFETs or IGBTs, it requires no external driving circuitry, gate resistors, or voltage level shifting, simplifying layout and reducing BOM count in rectifier and clamping roles.

Can DSC04C065D1 be paralleled for higher current handling?

Yes-its positive temperature coefficient on forward voltage enables stable current sharing between paralleled units without external ballasting resistors. However, matched layout symmetry (equal trace length, width, and thermal coupling) is essential to minimize imbalance. Derate total current by 15% versus sum of individual ratings to account for manufacturing tolerances and thermal gradients.

Is this part qualified for automotive applications per AEC-Q101?

No-the DSC04C065D1 is not AEC-Q101 qualified. The datasheet explicitly states that automotive-grade variants require specific change control, PPAP capability, and IATF 16949 manufacturing-available only upon direct request to Diodes Incorporated. For automotive use, engineers must specify the AEC-Q101-compliant version (e.g., DSC04C065D1Q) and confirm qualification status via Diodes' automotive product portal.