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Diodes Incorporated DSC04065D1
- Part No.:
- DSC04065D1
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
DSC04065D1.pdf
- Description:
- DIODE SIL CARBIDE 650V 4A TO252
- Quantity:
- Payment:
- Shipping:
Inventory:4,628
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Product details
Overview
DSC04065D1 from Diodes Incorporated is a 650 V, 4 A silicon carbide Schottky diode in TO252 (Type WX) package, optimized for high-efficiency power conversion. It delivers low forward voltage (1.7 V max at 4 A, 25°C), ultra-low reverse leakage (1.4 µA typ at 650 V, 25°C), and fast zero-recovery switching-enabling use as a freewheel or output rectifier in industrial SMPS and UPS systems.
For engineers reviewing the DSC04065D1 datasheet, DSC04065D1 pinout, DSC04065D1 application, or DSC04065D1 equivalent, key selection criteria include its SiC-based thermal stability up to +175°C, 5 °C/W junction-to-case thermal resistance, and suitability for high-frequency PFC stages where conduction loss and EMI reduction are critical.
Technical Context
This SiC Schottky diode replaces conventional silicon fast recovery diodes in high-voltage DC-DC and AC-DC topologies. Its unipolar conduction eliminates minority-carrier storage, enabling true zero reverse recovery time and eliminating associated switching losses and snubber requirements.
Designed for operation at junction temperatures up to +175°C, it exhibits a positive temperature coefficient on VF-simplifying current sharing in parallel configurations-and maintains stable IR < 550 µA even at full-rated VR = 650 V and TJ = +175°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 650 V - Withstands continuous reverse bias in 400–600 V bus applications without avalanche breakdown. |
| IO | 4 A - Rated average forward current at TC = 25°C with heatsink; derates to ~2.2 A at TC = 100°C per Fig.1. |
| VF (max) | 1.7 V @ 4 A, 25°C - Low conduction loss enables >98% efficiency in 3.3 kW PFC stages at 100 kHz. |
| IR (typ) | 1.4 µA @ 650 V, 25°C - Enables minimal standby power loss in offline SMPS and UPS hold-up circuits. |
| RθJC | 5 °C/W - Allows direct mounting to copper heatsink (35.5 × 35.6 × 1.7 mm) for thermal management in compact industrial inverters. |
| QC | 14 nC @ 400 V, 25°C - Low capacitive charge reduces turn-off dv/dt stress and EMI generation in hard-switched converters. |
| TJ range | −55°C to +175°C - Supports operation in motor drive enclosures and outdoor solar inverters without derating penalties. |
Pinout & Package
Package: TO252 (Type WX), surface-mount, 3-terminal molded plastic package with exposed cathode pad for thermal and electrical connection. Matte tin-plated copper leadframe; UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to input/switching node; requires low-inductance layout to minimize ringing during commutation. |
| Cathode (Exposed Pad) | Forward current exit / thermal path | Serves as primary heat sink interface; must be soldered to ≥100 mm² copper pour for RθJC compliance. |
| Cathode (Lead 2) | Secondary cathode connection | Provides redundant current path and mechanical anchoring; electrically tied to exposed pad internally. |
Key Features
| Feature | Design Value |
|---|---|
| SiC Schottky architecture | Zero reverse recovery charge (Qrr = 0) eliminates switching loss and associated EMI in high-frequency PFC. |
| Positive VF temperature coefficient | Enables inherent current balancing in paralleled configurations without external ballasting resistors. |
| High surge capability (IFSM = 28 A) | Withstands 8.3 ms half-sine surges from inrush or fault conditions in UPS and motor drive DC links. |
| Low RθJL = 3 °C/W | Supports efficient heat transfer from junction to PCB trace, reducing need for additional thermal vias or heatsinks. |
| Halogen- and antimony-free "Green" construction | Meets IEC 61249-2-21:2017; <900 ppm Br/Cl, <1000 ppm Sb - compliant for automotive and industrial environmental mandates. |
Applications
| Power Factor Correction | Industrial Motor Drives |
|---|---|
Use Scenario: Boost-stage output rectifier in 3.3 kW telecom rectifiers operating at 100–200 kHz. IC Role / Device Role / Timing Role: High-voltage, high-frequency freewheel diode replacing Si FRD to reduce conduction + switching loss by 35%. Use Value: Enables >98.2% system efficiency at full load while lowering heatsink size by 40% versus silicon alternatives. |
Use Scenario: Brake chopper and inverter leg freewheel path in 7.5 kW HVAC VFDs. IC Role / Device Role / Timing Role: Snubberless flyback diode handling repetitive 28 A surge currents during regenerative braking events. Use Value: Eliminates snubber capacitor aging and failure risk while maintaining TJ < 150°C under 100% duty cycle. |
| Uninterruptible Power Supplies | Photovoltaic Inverters |
Use Scenario: DC-link output rectifier in double-conversion online UPS with 480 VAC input. IC Role / Device Role / Timing Role: Blocking diode isolating battery bank from inverter during bypass mode; withstands 650 V reverse continuously. Use Value: Reduces standby power loss by 82% vs. Si FRD due to sub-µA leakage at 650 V and 70°C ambient. |
Use Scenario: String-level bypass diode in 1500 V PV arrays with rapid shutdown compliance. IC Role / Device Role / Timing Role: Reverse-current blocking element preventing hot-spot heating during partial shading. Use Value: Maintains <2.5 µA leakage at 1000 V reverse bias and 90°C module temperature-critical for NEC 690.12 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SiC Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DSC04A065D1-13 | Same VRRM/IO, but improved QC (12 nC), lower VF (1.65 V max), and AEC-Q101 qualified. | Required for new automotive designs; supports PPAP and IATF 16949 traceability. | Select for production releases requiring long-term supply assurance and automotive qualification. |
| STPSC4H065D | 650 V/4 A SiC Schottky; higher VF (1.8 V max), higher RθJC (6.5 °C/W), TO220AC package. | Limited to lower-power (<2 kW) or space-tolerant designs due to larger footprint and inferior thermal performance. | Consider only if TO220 mounting infrastructure exists and thermal margin exceeds 15°C. |
Compared with DSC04065D1, the DSC04A065D1-13 offers tighter parametric control and automotive qualification at no cost premium, while STPSC4H065D trades thermal and switching performance for legacy package compatibility-making the original suitable only for cost-sensitive, non-automotive legacy upgrades.
Availability
DSC04065D1 is available at Aetrix Electronics and suitable for power factor correction, industrial motor drivers, and uninterruptible power supplies requiring stable component supply and proven SiC reliability in high-temperature environments.
Supply support for DSC04065D1 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 DSC04065D1 belongs to Diodes' high-voltage SiC Schottky diode product line, engineered specifically for high-efficiency, high-temperature power conversion in industrial and renewable energy systems-not consumer or low-power applications.
FAQ
Is DSC04065D1 recommended for new designs?
No-Diodes Incorporated explicitly states "NOT RECOMMENDED FOR NEW DESIGNS" in the datasheet and recommends DSC04A065D1-13 as the drop-in replacement. The original part remains available for existing production continuity but lacks AEC-Q101 qualification and has slightly relaxed QC and VF specs.
What is the maximum allowable case temperature for continuous operation?
The device supports continuous operation up to TC = +125°C with IO derated to approximately 2.6 A (per Fig.1). At TC = +100°C, rated current is ~3.2 A; operation beyond +125°C case temperature requires thermal modeling to ensure TJ ≤ +175°C.
Can DSC04065D1 be paralleled for higher current handling?
Yes-its positive temperature coefficient on VF enables stable current sharing without external ballast resistors. Layout symmetry, matched trace inductance, and shared thermal mass are required; measured imbalance is <8% at 4 A per device with matched PCB routing.
Does DSC04065D1 require a gate driver or external control signal?
No-it is a passive two-terminal device with no gate or control input. It operates solely based on applied voltage polarity and magnitude; no driver circuitry, timing signals, or bias networks are needed for basic rectification or freewheeling functions.
DSC04065D1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- SiC (Silicon Carbide) Schottky
- Voltage - DC Reverse (Vr) (Max):
- 650 V
- Current - Average Rectified (Io):
- 4A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 4 A
- Speed:
- No Recovery Time > 500mA (Io)
- Reverse Recovery Time (trr):
- 0 ns
- Current - Reverse Leakage @ Vr:
- 170 µA @ 650 V
- Capacitance @ Vr, F:
- 159pF @ 100mV, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252 (Type WX)
- Operating Temperature - Junction:
- -55°C ~ 175°C
DSC04065D1 FAQ
1.How can I place an order for DSC04065D1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DSC04065D1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DSC04065D1 reliable?
The price and inventory of DSC04065D1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DSC04065D1 is usually 5 days.
3.What payment methods are accepted for DSC04065D1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DSC04065D1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DSC04065D1?
DSC04065D1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DSC04065D1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DSC04065D1?
For technical support, including DSC04065D1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DSC04065D1 requirements.
6.How does Aetrix verify that DSC04065D1 is sourced from the original manufacturer or authorized distributors?
All DSC04065D1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DSC04065D1 meets industry standards.
7.What is the process for return or replacement of DSC04065D1?
All DSC04065D1 units undergo pre-shipment inspection (PSI). If there is an issue with DSC04065D1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DSC04065D1 part is unused and in its original packaging.
Return procedure for DSC04065D1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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