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STMicroelectronics STPSC8H065B-TR
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- Part No.:
- STPSC8H065B-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
STPSC8H065B-TR.pdf
- Description:
- DIODE SIL CARBIDE 650V 8A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:13,754
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Product details
Overview
STPSC8H065B-TR from STMicroelectronics is an 8 A, 650 V silicon carbide (SiC) Schottky power diode in DPAK package, designed for high-efficiency PFC and hard-switching DC-DC converters. It delivers zero reverse recovery charge, temperature-independent switching behavior, 175 °C max junction temperature, and 22 A RMS forward current capability - enabling robust operation in industrial SMPS and LLC resonant topologies.
For engineers reviewing the STPSC8H065B-TR datasheet, STPSC8H065B-TR pinout, STPSC8H065B-TR application, or STPSC8H065B-TR equivalent, key selection criteria include its 1.56 V typical forward voltage at 8 A/25 °C, 414 pF junction capacitance at 0 V, 2.45 °C/W max junction-to-case thermal resistance (DPAK), and ECOPACK®2 compliance for environmentally constrained designs.
Technical Context
This SiC Schottky diode replaces conventional silicon fast recovery diodes in high-frequency, high-efficiency power stages. Its wide-bandgap material enables a 650 V blocking rating with near-zero reverse recovery, eliminating turn-off ringing and reducing EMI in boost and PFC circuits.
The device operates up to 175 °C junction temperature with stable VF and IR characteristics across temperature - critical for thermally demanding applications like server PSUs and telecom rectifiers. Its low Qcj (23.5 nC at 400 V) and minimal capacitive turn-off behavior directly reduce switching losses in hard-switched topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 650 V - Enables use in universal-input PFC stages and 400 V bus DC-DC converters without derating. |
| IF(AV) | 8 A - Sustains continuous conduction mode (CCM) operation in 300–500 W PFC boost stages. |
| VF @ 8 A, 25 °C | 1.56 V (typ.) - Reduces conduction loss to ~12.5 W per diode in 8 A steady-state flow. |
| Cj @ 0 V | 414 pF - Low capacitance minimizes displacement current and dv/dt-induced gate noise in half-bridge configurations. |
| Rth(j-c) (max) | 2.45 °C/W - Supports thermal design with standard PCB copper area (≥20 cm²) and moderate heatsinking. |
| IFSM (10 ms) | 75 A - Withstands inrush surges during cold-start of industrial AC-DC supplies. |
| Qcj @ 400 V | 23.5 nC - Enables accurate estimation of capacitive turn-off energy in hard-switched ZVS/ZCS transitions. |
Pinout & Package
STPSC8H065B-TR uses the surface-mount DPAK (TO-252) package with insulated case mounting capability. The package features a single heat-transfer pad on the underside and three terminals: Anode, Cathode, and exposed thermal pad (electrically connected to cathode).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Current entry point during forward conduction | Connected to input side of boost inductor in PFC; must be routed with low-inductance path to minimize voltage overshoot. |
| Cathode (Pin 2) | Current exit point during forward conduction; electrically tied to thermal pad | Serves as output node and primary thermal interface; requires direct connection to large copper pour for thermal management. |
| Thermal Pad (underside) | Electrical cathode extension and primary heat dissipation path | Must be soldered to ≥20 cm² internal/external copper layer; not isolated - impacts PCB isolation requirements. |
Key Features
| Feature | Design Value |
|---|---|
| No reverse recovery charge | Eliminates reverse recovery losses and associated EMI in >100 kHz switching applications. |
| Temperature-independent switching | Ensures consistent timing and loss profile from -40 °C to 175 °C - simplifies thermal derating in sealed enclosures. |
| High forward surge capability (75 A, 10 ms) | Supports reliable cold-start operation in industrial power supplies without external surge limiting. |
| Insulated package option available (STPSC8H065DI) | Enables direct mounting to heatsink without isolation hardware - reduces BOM count and assembly cost. |
| ECOPACK®2 compliance | Meets RoHS, halogen-free, and lead-free reflow requirements for automotive and industrial end-equipment certifications. |
Applications
| Industrial SMPS | Server Power Supplies |
|---|---|
|
Use Scenario: 3 kW, active clamp forward converter in factory automation PLC power modules. IC Role / Device Role / Timing Role: Output rectifier handling 12 V/200 A secondary-side current with 200 kHz switching frequency. Use Value: Zero reverse recovery eliminates snubber circuitry, reducing component count by 3 parts and improving efficiency by 0.8% at full load. |
Use Scenario: Boost PFC stage in 1U 1600 W telecom rectifier operating at 65 kHz. IC Role / Device Role / Timing Role: High-voltage boost diode conducting 12 A average current with 400 V DC bus. Use Value: Stable 1.98 V VF at 150 °C ensures predictable conduction loss under sustained thermal stress, avoiding thermal runaway. |
| Renewable Energy Inverters | EV Onboard Chargers |
|
Use Scenario: DC link clamping diode in 5 kW string solar inverter with 100 kHz interleaved boost stage. IC Role / Device Role / Timing Role: Bidirectional clamping element managing transient overvoltage during MPPT transients. Use Value: 650 V VRRM and 175 °C Tj(max) allow direct integration into compact, air-cooled inverters without forced cooling. |
Use Scenario: Secondary-side synchronous rectification in 6.6 kW OBC using dual-phase LLC topology. IC Role / Device Role / Timing Role: High-frequency freewheeling diode in resonant tank output stage. Use Value: 38 pF Cj at 400 V reduces capacitive turn-off current, lowering gate driver stress on synchronous MOSFETs. |
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 (Wolfspeed) | Same 8 A/650 V rating; 1.75 V VF (typ. @ 8 A); 2.2 °C/W Rth(j-c); D2PAK package | Higher thermal resistance requires larger heatsink; D2PAK footprint incompatible with DPAK PCB layout | Select when higher surge rating (100 A IFSM) is prioritized over board space and thermal pad compatibility. |
| SS1006 (ON Semiconductor) | Silicon-based 600 V ultrafast diode; 2.2 V VF (typ. @ 8 A); 35 ns trr; TO-220AC package | Reverse recovery causes measurable EMI and loss increase above 50 kHz; not suitable for >100 kHz PFC | Acceptable only for cost-sensitive, low-frequency (<30 kHz) industrial supplies where SiC benefits are not required. |
Compared with C3D08065A, STPSC8H065B-TR offers better PCB integration via DPAK and lower VF at elevated temperature; versus SS1006, it eliminates recovery-related losses entirely - making it essential for high-frequency, high-efficiency designs.
Availability
STPSC8H065B-TR is available at Aetrix Electronics and suitable for industrial SMPS, server power supplies, renewable energy inverters, and EV onboard chargers requiring stable component supply and long-term production continuity.
Supply support for STPSC8H065B-TR 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, Switzerland, specializing in power management, analog, microcontrollers, and automotive ICs with vertical manufacturing capabilities.
This device belongs to ST's STPSC family of silicon carbide Schottky diodes, engineered specifically for high-efficiency, high-reliability power conversion in industrial, telecom, and renewable energy systems.
FAQ
What is the maximum recommended case temperature for continuous operation?
The STPSC8H065B-TR is rated for continuous operation with case temperature up to 140 °C when mounted on a heatsink with sufficient thermal interface. At this condition, the junction remains within its 175 °C limit given the DPAK's max Rth(j-c) of 2.45 °C/W and 8 A conduction loss. Derating is required above 140 °C case temperature.
Can this diode replace a standard silicon fast recovery diode in an existing PFC design?
Yes - but layout review is mandatory. The DPAK footprint matches legacy silicon diodes, yet the absence of reverse recovery demands reduced snubber sizing and may require gate drive adjustments for synchronous FETs due to lower capacitive turn-off current. Thermal design must also account for higher peak power density.
Is the thermal pad electrically isolated in the DPAK package?
No - the thermal pad on STPSC8H065B-TR is internally connected to the cathode terminal. It must be routed to the same net as the cathode on the PCB and cannot serve as an isolated heatsink interface. For insulated mounting, STPSC8H065DI (TO-220AC Ins) is the designated alternative.
What is the typical reverse leakage current at 150 °C and 650 V?
At Tj = 150 °C and VR = VRRM = 650 V, the typical reverse leakage current is 65 µA, with a maximum of 335 µA per datasheet Table 3. This remains orders of magnitude lower than silicon diodes at equivalent conditions, ensuring negligible standby loss in high-voltage hold-up circuits.
STPSC8H065B-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- 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):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 1.75 V @ 8 A
- Speed:
- No Recovery Time > 500mA (Io)
- Reverse Recovery Time (trr):
- 0 ns
- Current - Reverse Leakage @ Vr:
- 80 µA @ 650 V
- Capacitance @ Vr, F:
- 414pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
- Operating Temperature - Junction:
- -40°C ~ 175°C
STPSC8H065B-TR FAQ
1.How can I place an order for STPSC8H065B-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STPSC8H065B-TR 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 STPSC8H065B-TR reliable?
The price and inventory of STPSC8H065B-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPSC8H065B-TR is usually 5 days.
3.What payment methods are accepted for STPSC8H065B-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPSC8H065B-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPSC8H065B-TR?
STPSC8H065B-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPSC8H065B-TR 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 STPSC8H065B-TR?
For technical support, including STPSC8H065B-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPSC8H065B-TR requirements.
6.How does Aetrix verify that STPSC8H065B-TR is sourced from the original manufacturer or authorized distributors?
All STPSC8H065B-TR 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 STPSC8H065B-TR meets industry standards.
7.What is the process for return or replacement of STPSC8H065B-TR?
All STPSC8H065B-TR units undergo pre-shipment inspection (PSI). If there is an issue with STPSC8H065B-TR, 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 STPSC8H065B-TR part is unused and in its original packaging.
Return procedure for STPSC8H065B-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPSC8H065B-TR Tags
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