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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

STMicroelectronics STPSC6H065DI

Name: STPSC6H065DI
Brand: STMicroelectronics
SKU: STPSC6H065DI
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPSC6H065DI

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: TO-220-2 Insulated, TO-220AC

Datasheet:: STPSC6H065DI.pdf

Description:: DIODE SIC 650V 6A TO220AC INS

Quantity:: RFQ Add To RFQ list

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Inventory:800

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Product details

Overview

STPSC6H065DI from STMicroelectronics is a 6 A, 650 V silicon carbide (SiC) Schottky power diode in an insulated TO-220AC package, designed for high-efficiency PFC and hard-switching DC/DC converters. It delivers zero reverse recovery charge, temperature-independent switching, 2500 VRMS insulation, and 400 A surge capability at 10 µs - enabling robust operation in industrial SMPS and LLC resonant topologies.

For engineers reviewing the STPSC6H065DI datasheet, STPSC6H065DI pinout, STPSC6H065DI application, or STPSC6H065DI equivalent, key selection criteria include its 1.56 V forward voltage at 6 A/25 °C, 30 pF capacitance at 400 V, 2.9 °C/W typical junction-to-case thermal resistance, and ECOPACK®2 compliance for environmentally constrained designs.

Technical Context

This SiC Schottky diode replaces conventional silicon fast recovery diodes in high-frequency, high-voltage rectification stages. Its wide-bandgap construction eliminates minority-carrier storage, resulting in no reverse recovery current and negligible turn-off ringing - critical for reducing EMI and improving efficiency in >100 kHz PFC boost stages.

The insulated TO-220AC package integrates 2500 VRMS isolation between the die and mounting base, enabling direct heatsink attachment without additional insulating hardware. Its 7 pF typical package capacitance and low Q_cj (18 nC at 400 V) minimize capacitive turn-off losses across operating temperatures from –40 °C to +175 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	650 V - Maximum repetitive reverse blocking voltage; enables use in 400 V AC input PFC stages with 2× safety margin.
I_F(AV)	6 A at T_c = 110 °C - Continuous forward current rating under real-world heatsink conditions.
V_F	1.56 V typ. @ 6 A, 25 °C - Low conduction loss reduces power dissipation vs. Si FRD alternatives.
Q_cj	18 nC @ V_R = 400 V - Total capacitive charge directly impacts turn-off energy loss in hard-switched converters.
R_th(j-c)	2.9 °C/W typ. - Junction-to-case thermal resistance defines minimum heatsink requirement for thermal management.
I_FSM	400 A @ 10 µs square pulse - High surge capability supports transient overload resilience in boost inductor current spikes.
C_j	30 pF @ V_R = 400 V - Low reverse-biased junction capacitance minimizes displacement current and EMI generation.

Pinout & Package

STPSC6H065DI uses an insulated TO-220AC package with electrically isolated metal tab (2500 VRMS isolation). The device has two terminals: anode and cathode, mounted on the same plane with the cathode connected to the insulated tab.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Input terminal for forward conduction path	Connected to boost inductor or switch node; must withstand full reverse voltage during off-state.
Cathode	Output terminal; tied to insulated metal tab	Provides low-inductance return path to output capacitor; tab mounts directly to heatsink without mica washer.

Key Features

Feature	Design Value
No reverse recovery charge	Eliminates reverse recovery current and associated switching losses in hard-switched topologies.
Temperature-independent switching	Capacitive turn-off behavior remains stable from –40 °C to +175 °C, ensuring consistent timing in thermal cycling environments.
High forward surge capability	400 A non-repetitive surge at 10 µs enables reliable operation during startup and line transients in PFC stages.
Insulated TO-220AC package	2500 VRMS isolation allows direct heatsink mounting without insulating hardware, reducing thermal interface resistance by ~0.3 °C/W.
ECOPACK®2 compliance	Meets RoHS, halogen-free, and lead-free requirements per EU Directive 2011/65/EU and IEC 61249-2-21.

Applications

Industrial PFC Boost Stage

Server PSU LLC Rectification

Use Scenario: 3.3 kW active PFC front-end in telecom rectifier operating at 70 kHz with 400 V DC bus.

IC Role / Device Role / Timing Role: Ultrafast boost diode handling 6 A average forward current and 400 V reverse stress during every switching cycle.

Use Value: Zero Q_rr eliminates 2–3 W of switching loss per diode versus Si FRD, improving system efficiency by 0.4% at full load.

Use Scenario: Secondary-side synchronous rectification in 1.5 kW server PSU using asymmetric half-bridge LLC topology.

IC Role / Device Role / Timing Role: High-voltage output rectifier conducting 6 A RMS with 650 V peak reverse voltage during resonant tank dead-time.

Use Value: 30 pF C_j limits displacement current to <15 mA at 700 kHz, reducing gate drive loading on synchronous MOSFETs.

Solar Microinverter DC Link

EV Onboard Charger Boost Stage

Use Scenario: DC link clamping diode in 300 W microinverter interfacing 60–150 V PV string with 400 V DC bus.

IC Role / Device Role / Timing Role: Bidirectional clamp path during MPPT perturbation cycles, enduring repeated 100 A surge pulses.

Use Value: 400 A 10 µs surge rating supports 10× overcurrent tolerance during rapid irradiance changes without derating.

Use Scenario: Boost diode in 6.6 kW OBC operating at 100 kHz with 450 V AC input and 800 V DC bus.

IC Role / Device Role / Timing Role: High-reliability rectifier in automotive-grade PFC stage requiring AEC-Q101 qualification support.

Use Value: 175 °C max junction temperature and –40 °C min storage enable operation in under-hood ambient up to 105 °C.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
C3D06065E (Wolfspeed)	Same 6 A/650 V rating; D²PAK package; R_th(j-c) = 2.0 °C/W; no insulation.	Requires external insulator for heatsink mounting; better thermal performance but higher assembly cost.	Select when thermal budget is tighter and isolation can be implemented externally.
SS16HE3/57T (Vishay)	Si-based hyperfast diode; 6 A/600 V; Q_rr = 25 nC; V_F = 2.1 V @ 6 A.	Higher conduction and switching losses; limited to ≤65 °C case temperature for same current.	Select only for cost-sensitive, low-frequency (<30 kHz), non-isolated designs where SiC ROI is not justified.

Compared with C3D06065E, STPSC6H065DI trades 0.9 °C/W higher thermal resistance for integrated 2500 VRMS isolation - eliminating insulator BOM and assembly steps. Against SS16HE3/57T, it delivers 35% lower conduction loss and eliminates reverse recovery entirely, enabling higher frequency and efficiency.

Availability

STPSC6H065DI is available at Aetrix Electronics and suitable for industrial PFC modules, server power supplies, solar microinverters, and EV onboard chargers requiring stable component supply and long-term lifecycle assurance.

Supply support for STPSC6H065DI 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, analog, MEMS, and microcontroller technologies for industrial, automotive, and consumer markets.

This device belongs to ST's STPSC family of silicon carbide Schottky diodes, engineered specifically for high-efficiency, high-reliability power conversion in demanding PFC and DC/DC applications.

FAQ

What is the maximum recommended case temperature for continuous operation?

The STPSC6H065DI is rated for I_F(AV) = 6 A at T_c = 110 °C with insulated TO-220AC packaging. Exceeding this temperature requires derating per Figure 5 in DS9064; operation above 110 °C reduces average current capacity linearly to 0 A at 175 °C junction limit.

Does the insulated tab require torque-controlled mounting?

Yes - the TO-220AC Ins. package specifies a recommended torque of 0.55 N·m and maximum torque of 0.70 N·m for the mounting screw. Over-torquing risks cracking the epoxy insulation layer and compromising the 2500 VRMS isolation rating.

How does its capacitive charge compare to silicon diodes in PFC designs?

At 400 V reverse bias, STPSC6H065DI exhibits Q_cj = 18 nC - significantly lower than typical Si FRDs (e.g., 150–300 nC). This reduces turn-off energy loss by >80%, directly lowering EMI filter size and improving light-load efficiency in boost PFC stages.

Is this part qualified to AEC-Q101 for automotive use?

No - STPSC6H065DI is not AEC-Q101 qualified. ST offers the automotive-grade STPSC8H065DLW (D²PAK) and STPSC10H065DLW for qualified applications. This part is intended for industrial, computing, and renewable energy systems meeting IEC/EN 62368-1 and UL 62368-1.

STPSC6H065DI Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-220-2 Insulated, TO-220AC

Packaging:: Tube

Product Status:: Active

Technology:: SiC (Silicon Carbide) Schottky

Voltage - DC Reverse (Vr) (Max):: 650 V

Current - Average Rectified (Io):: 6A

Voltage - Forward (Vf) (Max) @ If:: 1.75 V @ 6 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 60 µA @ 650 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AC ins

Operating Temperature - Junction:: -40°C ~ 175°C

STPSC6H065DI FAQ

1.How can I place an order for STPSC6H065DI through Aetrix?

Please submit a Request for Quotation (RFQ) for STPSC6H065DI 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 STPSC6H065DI reliable?

The price and inventory of STPSC6H065DI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPSC6H065DI is usually 5 days.

3.What payment methods are accepted for STPSC6H065DI?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPSC6H065DI transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPSC6H065DI?

STPSC6H065DI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPSC6H065DI 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 STPSC6H065DI?

For technical support, including STPSC6H065DI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPSC6H065DI requirements.

6.How does Aetrix verify that STPSC6H065DI is sourced from the original manufacturer or authorized distributors?

All STPSC6H065DI 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 STPSC6H065DI meets industry standards.

7.What is the process for return or replacement of STPSC6H065DI?

All STPSC6H065DI units undergo pre-shipment inspection (PSI). If there is an issue with STPSC6H065DI, 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 STPSC6H065DI part is unused and in its original packaging.

Return procedure for STPSC6H065DI:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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