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STMicroelectronics STPSC8065DY
- Part No.:
- STPSC8065DY
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
STPSC8065DY.pdf
- Description:
- DIODE SIL CARB 650V 8A TO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:33
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Product details
Overview
STPSC8065DY from STMicroelectronics is an AEC-Q101-qualified 650 V, 8 A average forward current silicon carbide Schottky diode in TO-220AC package, featuring negligible reverse recovery, temperature-independent switching, and 1.30 V typical forward voltage at 8 A and 25 °C. It is engineered for automotive and industrial PFC stages operating up to 175 °C junction temperature.
For engineers reviewing the STPSC8065DY datasheet, STPSC8065DY pinout, STPSC8065DY application, or STPSC8065DY equivalent, key selection criteria include its 650 V repetitive peak reverse voltage, 46 A non-repetitive surge rating at 25 °C, 28 nC capacitive charge at 400 V, 540 pF junction capacitance at 0 V, and thermal resistance of 1.1 °C/W (typ) junction-to-case.
Technical Context
This SiC Schottky diode eliminates minority-carrier storage and reverse recovery charge, enabling zero-recovery losses in hard-switching PFC topologies. Its wide-bandgap construction delivers stable VF drift (<0.35 V increase from 25 °C to 175 °C) and minimal Cj variation across temperature and bias.
The device operates with no thermal runaway risk under DC conditions when mounted on a heatsink satisfying (dPtot/dTj) < (1/Rth(j-a)), and supports high-frequency operation due to low Qcj (28 nC) and fast capacitive discharge behavior independent of junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 650 V - Maximum blocking voltage in repetitive AC/DC applications without avalanche breakdown |
| IF(AV) | 8 A - Continuous DC forward current at TC = 150 °C, defining steady-state conduction capability |
| VF (typ) | 1.30 V @ 8 A, 25 °C - Directly determines conduction loss: ~10.4 W per diode at rated DC current |
| Qcj | 28 nC @ VR = 400 V - Capacitive charge governing turn-off energy and EMI in boost PFC switches |
| Rth(j-c) | 1.1 °C/W (typ) - Enables 132 W max power dissipation before reaching 175 °C junction limit at 25 °C case |
| IFSM | 46 A @ tp = 10 ms, Tc = 25 °C - Withstands line-start surges and transient overloads in offline PFC inputs |
| Tj (max) | 175 °C - Supports operation in under-hood automotive environments and sealed industrial enclosures |
Pinout & Package
STPSC8065DY uses the TO-220AC package: single-ended, insulated tab, vertical mounting, thermally optimized for conduction cooling. Mounting torque: 0.55 N·m (recommended), 0.7 N·m (max). Epoxy meets UL94 V0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry node | Connected to PFC boost switch source or bridge rectifier output; carries full load current |
| Cathode | Forward current exit node | Connected to PFC inductor input or ground return path; defines reference for voltage clamping |
| Case / Tab | Thermal and electrical connection to cathode | Electrically tied to cathode; must be isolated from heatsink unless system design permits cathode-referenced mounting |
Key Features
| Feature | Design Value |
|---|---|
| No reverse recovery | Eliminates reverse recovery losses and associated EMI in hard-switched PFC, enabling >100 kHz operation |
| AEC-Q101 qualified | Validated for automotive powertrain and charging systems requiring extended temperature cycling and humidity exposure |
| PPAP capable | Supports full Production Part Approval Process documentation for Tier-1 automotive supply chain integration |
| High surge robustness | 46 A IFSM withstands 10 ms line transients-critical for unregulated AC input stages before bulk capacitor charging |
| ECOPACK®2 compliant | Meets RoHS, halogen-free, and lead-free soldering requirements for global automotive and industrial markets |
Applications
| On-Board Charger (OBC) | Industrial PFC Module |
|---|---|
Use Scenario: 6.6 kW bidirectional OBC with dual-phase interleaved boost PFC stage. IC Role / Device Role / Timing Role: High-voltage output rectifier in boost diode position, replacing Si fast recovery diodes. Use Value: Reduces conduction + switching losses by 35% vs. Si FRD, enabling 98.5% PFC efficiency at full load and 175 °C ambient operation. | Use Scenario: 3-phase 11 kW industrial motor drive with active front-end (AFE) PFC. IC Role / Device Role / Timing Role: Input rectification and regeneration path diode in Vienna rectifier topology. Use Value: Enables 50 kHz switching with <5 mW turn-off loss per cycle, eliminating snubbers and reducing heatsink volume by 40%. |
| EV DC Fast Charging Station | Server PSU Front-End |
Use Scenario: 150 kW liquid-cooled charging cabinet with multi-level PFC architecture. IC Role / Device Role / Timing Role: Clamp and freewheeling diode in three-level NPC PFC cells. Use Value: Sustains 175 °C junction temperature during continuous 100% load, eliminating derating below 65 °C ambient. | Use Scenario: 3 kW redundant server power supply with digital-controlled continuous conduction mode (CCM) PFC. IC Role / Device Role / Timing Role: Output rectifier in critical-conduction-mode (CrM) boost stage. Use Value: Delivers stable 1.3–1.5 V VF across -40 to 125 °C case, ensuring predictable loss budgeting without thermal feedback compensation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SiC Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| C3D08065A | Same 650 V/8 A rating; 1.55 V VF (typ) @ 8 A, 25 °C; higher Rth(j-c) = 1.5 °C/W (typ) | Higher conduction loss; less suitable for compact heatsink designs at >100 kHz | Prefer when legacy layout uses same footprint and lower-cost sourcing is prioritized over peak efficiency |
| SS12065A | 650 V/12 A rating; VF = 1.45 V (typ); TO-247-2L package; 0.75 °C/W Rth(j-c) | Higher current capacity but larger footprint; requires PCB rework for TO-220AC replacement | Choose for future-proofing in new designs needing >10 A margin or improved thermal headroom |
Compared with C3D08065A and SS12065A, STPSC8065DY offers the lowest VF (1.30 V) in TO-220AC, optimal for space-constrained automotive PFC where thermal interface resistance dominates total Rth(j-a), and delivers best-in-class surge robustness (46 A IFSM) for unfiltered AC inputs.
Availability
STPSC8065DY is available at Aetrix Electronics and suitable for automotive on-board chargers, industrial PFC modules, EV DC fast charging stations, and server PSU front-ends requiring stable component supply across extended temperature and surge stress profiles.
Supply support for STPSC8065DY 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing analog, MCU, power, and automotive-grade ICs with focus on energy efficiency and functional safety.
STPSC8065DY belongs to ST's STPSC family of automotive-qualified SiC Schottky diodes, developed specifically to replace silicon rectifiers in high-efficiency, high-temperature PFC and auxiliary power conversion stages.
FAQ
Is STPSC8065DY suitable for use without a heatsink?
No. With a maximum junction temperature of 175 °C and typical Rth(j-c) of 1.1 °C/W, dissipating even 8 A × 1.3 V = 10.4 W requires a heatsink. At 25 °C ambient, a 10 °C/W heatsink would raise case temperature to ~115 °C, keeping junction at ~126 °C - acceptable but not margin-safe. Derating or forced air is required for sustained full-load operation.
Does STPSC8065DY require gate driving or control signals?
No. STPSC8065DY is a two-terminal uncontrolled power diode. It conducts when anode voltage exceeds cathode voltage by >VF and blocks when reverse biased. No gate, control pin, or driver circuitry is involved - it operates passively like any Schottky or PN junction diode.
Can STPSC8065DY replace a standard silicon fast recovery diode in an existing PFC board?
Yes, with layout verification. Its TO-220AC footprint matches common Si FRDs, but thermal and EMI behavior differs: lower VF reduces conduction loss, zero Qrr eliminates snubber needs, and lower Cj shifts resonant frequencies. Layout review must confirm adequate creepage/clearance for 650 V and verify gate-drive loop stability if sharing ground with MOSFET drivers.
What is the meaning of "PPAP capable" for STPSC8065DY?
"PPAP capable" means ST provides full Production Part Approval Process documentation - including design FMEA, process flow, control plans, measurement system analysis, and initial process capability studies - enabling Tier-1 suppliers to submit compliant PPAP packages for automotive qualification without requiring additional ST engineering support.
STPSC8065DY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- ECOPACK®2
- Package/Case:
- TO-220-2
- Packaging:
- Tube
- Product Status:
- Obsolete
- Technology:
- SiC (Silicon Carbide) Schottky
- Voltage - DC Reverse (Vr) (Max):
- 650 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 1.45 V @ 8 A
- Speed:
- No Recovery Time > 500mA (Io)
- Reverse Recovery Time (trr):
- 0 ns
- Current - Reverse Leakage @ Vr:
- 105 µA @ 650 V
- Capacitance @ Vr, F:
- 540pF @ 0V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AC
- Operating Temperature - Junction:
- -40°C ~ 175°C
STPSC8065DY FAQ
1.How can I place an order for STPSC8065DY through Aetrix?
Please submit a Request for Quotation (RFQ) for STPSC8065DY 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 STPSC8065DY reliable?
The price and inventory of STPSC8065DY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPSC8065DY is usually 5 days.
3.What payment methods are accepted for STPSC8065DY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPSC8065DY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPSC8065DY?
STPSC8065DY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPSC8065DY 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 STPSC8065DY?
For technical support, including STPSC8065DY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPSC8065DY requirements.
6.How does Aetrix verify that STPSC8065DY is sourced from the original manufacturer or authorized distributors?
All STPSC8065DY 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 STPSC8065DY meets industry standards.
7.What is the process for return or replacement of STPSC8065DY?
All STPSC8065DY units undergo pre-shipment inspection (PSI). If there is an issue with STPSC8065DY, 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 STPSC8065DY part is unused and in its original packaging.
Return procedure for STPSC8065DY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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