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

STMicroelectronics STPSC8H065D

Name: STPSC8H065D
Brand: STMicroelectronics
SKU: STPSC8H065D
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPSC8H065D

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: TO-220-2

Datasheet:: STPSC8H065D.pdf

Description:: DIODE SIL CARB 650V 8A TO220AC

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Product details

Overview

STPSC8H065D from STMicroelectronics is an 8 A, 650 V silicon carbide (SiC) Schottky power diode in TO-220AC package, designed for high-efficiency PFC and hard-switching DC-DC converters. It delivers zero reverse recovery charge, temperature-independent switching behavior, 75 A non-repetitive surge current (10 ms), and 1.56 V typical forward voltage at 8 A and 25 °C.

For engineers reviewing the STPSC8H065D datasheet, STPSC8H065D pinout, STPSC8H065D application, or STPSC8H065D equivalent, key selection criteria include its 650 V V_RRM, 175 °C maximum junction temperature, low 414 pF junction capacitance at 0 V, insulated thermal performance (R_th(j-c) = 2.45 °C/W typ.), and ECOPACK®2 compliance for industrial-grade reliability.

Technical Context

This SiC Schottky diode replaces conventional silicon fast recovery diodes in high-frequency, high-efficiency topologies. Its wide bandgap enables a 650 V blocking rating with near-zero Q_rr, eliminating turn-off ringing and reducing EMI in LLC and boost stages.

The device operates across –40 to +175 °C junction temperature range and maintains stable VF and IR characteristics over temperature-VF increases only to 1.98 V (typ.) at 150 °C/8 A, while IR remains ≤335 µA at 150 °C/V_RRM. Thermal resistance is specified at 1.3 °C/W (TO-220AC, typ.) and 2.45 °C/W (TO-220AC Ins, typ.).

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	650 V - Enables use in 400 V bus PFC and 380–450 V DC-DC input stages without derating.
I_F(AV)	8 A at T_c = 140 °C - Supports continuous conduction mode operation in 300–500 W power supplies.
I_FSM	75 A (10 ms sinusoidal, T_c = 25 °C) - Withstands inrush and overload transients in AC-DC front ends.
V_F	1.56 V (typ., 8 A, 25 °C) - Reduces conduction loss vs. Si FRDs; enables >98% efficiency in critical PFC designs.
C_j	414 pF (0 V, 1 MHz) - Low capacitive charge (Q_cj = 23.5 nC at 400 V) minimizes switching loss in resonant converters.
T_j(max)	175 °C - Allows compact heatsinking and operation in high-ambient industrial environments.
R_th(j-c)	1.3 °C/W (typ., TO-220AC) - Enables direct mounting to aluminum heatsinks without thermal interface pads in many cases.

Pinout & Package

STPSC8H065D uses the TO-220AC package: single-ended, through-hole, non-insulated, with metal tab (cathode) and two leads (anode and cathode). The case serves as the cathode terminal; anode is lead 1, cathode is lead 2 and tab.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Current entry point during forward conduction	Connected to input/bus side in boost/PFC; requires low-inductance layout to minimize voltage overshoot.
Cathode (Lead 2 & Tab)	Current exit point; common reference node	Tab is electrically connected to lead 2 and must be mounted to heatsink (cathode-referenced thermal path).

Key Features

Feature	Design Value
No reverse recovery charge (Q_rr ≈ 0)	Eliminates turn-off switching loss and associated EMI in hard-switched PFC and LLC circuits.
Temperature-stable switching behavior	VF and C_j variation < ±15% from 25 °C to 150 °C-enables predictable loss modeling across full operating range.
High surge capability (75 A, 10 ms)	Robustness against line surges and startup inrush without external snubbing or derating.
ECOPACK®2 compliance	Meets RoHS, halogen-free, and material declaration requirements for industrial and energy infrastructure applications.
Low junction-to-case thermal resistance	1.3 °C/W (typ.) enables efficient heat transfer to standard TO-220 heatsinks without thermal paste in moderate-power designs.

Applications

Server PSU PFC Stage

Industrial DC-DC Converter

Use Scenario: Boost diode in continuous conduction mode (CCM) PFC stage of 1 kW server power supply.

IC Role / Device Role / Timing Role: Unidirectional high-voltage rectifier handling 400 V DC bus and 100 kHz switching.

Use Value: Zero Q_rr eliminates tail current loss, enabling >98.5% PFC efficiency and reducing MOSFET stress by 30% vs. Si FRD.

Use Scenario: Output rectifier in isolated 48 V–12 V LLC resonant converter for factory automation PLCs.

IC Role / Device Role / Timing Role: Synchronous rectification replacement with fixed-polarity, high-frequency freewheeling path.

Use Value: Stable 1.56 V VF at 8 A reduces conduction loss by 42% vs. 100 V Si Schottky; 175 °C rating supports sealed enclosure operation.

Solar Microinverter Boost

EV Onboard Charger PFC

Use Scenario: DC-link boost diode in string-level microinverter handling 60–150 V PV input and 400 V DC bus.

IC Role / Device Role / Timing Role: High-reliability unidirectional switch in high-frequency (100–200 kHz) boost stage.

Use Value: 650 V V_RRM provides 2× safety margin over 400 V bus; 75 A I_FSM withstands cloud-edge transient surges.

Use Scenario: Active PFC diode in 6.6 kW bidirectional OBC operating in both grid-charge and vehicle-to-grid modes.

IC Role / Device Role / Timing Role: Critical rectification element in interleaved boost PFC with 20 kHz–100 kHz variable frequency control.

Use Value: Temperature-independent C_j ensures consistent zero-voltage switching (ZVS) timing across –40 to +105 °C ambient.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
C3D08065E (Wolfspeed)	Same 8 A/650 V rating, D²PAK package, R_th(j-c) = 1.5 °C/W (typ.), VF = 1.6 V (8 A, 25 °C)	Requires surface-mount assembly; higher thermal resistance than TO-220AC but better board-level EMI performance.	Select when automated SMT production and space-constrained PCB layout are priorities over through-hole serviceability.
SS12065 (Littelfuse)	8 A/650 V, TO-220AC, VF = 1.7 V (8 A, 25 °C), I_FSM = 65 A (10 ms), R_th(j-c) = 1.4 °C/W (typ.)	Lower surge rating and slightly higher VF reduce margin in high-transient PFC designs.	Acceptable for cost-sensitive 500 W PFC where 10% lower surge headroom is acceptable and thermal design allows 0.1 °C/W margin.

Compared with C3D08065E and SS12065, STPSC8H065D offers superior surge robustness (75 A vs. 65–70 A), lowest VF among TO-220AC SiC diodes, and proven field reliability in telecom and industrial PFC deployments since 2014.

Availability

STPSC8H065D is available at Aetrix Electronics and suitable for server power supplies, industrial DC-DC converters, and solar microinverters requiring stable component supply, long-lifecycle support, and traceable sourcing.

Supply support for STPSC8H065D 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 PFC, LLC, and DC-DC applications demanding zero recovery and thermal stability.

FAQ

Is STPSC8H065D pin-compatible with standard TO-220AC silicon diodes?

Yes-STPSC8H065D uses the industry-standard TO-220AC footprint and pinout: anode on lead 1, cathode on lead 2 and metal tab. No PCB redesign is needed for drop-in replacement of legacy Si FRDs like STTH8R06D, though layout optimization for reduced parasitic inductance is recommended to fully exploit SiC benefits.

What is the maximum recommended case temperature for continuous operation?

The datasheet specifies I_F(AV) = 8 A at T_c = 140 °C for TO-220AC. For reliable long-term operation, maintain T_c ≤ 135 °C under worst-case ambient and airflow conditions. Derating to 7 A is advised if heatsink thermal resistance exceeds 1.0 °C/W or ambient exceeds 70 °C.

Does STPSC8H065D require a gate drive or external control signal?

No-it is a passive two-terminal power diode with no gate terminal or control interface. It conducts when anode voltage exceeds cathode voltage by >1.5 V and blocks when reverse biased up to 650 V. No driver circuitry, biasing, or timing signals are required.

Can STPSC8H065D be used in parallel for higher current handling?

Parallel operation is not recommended due to positive temperature coefficient of VF-unlike Si diodes, SiC Schottkys exhibit slight VF increase with temperature, which can cause current imbalance under mismatched thermal conditions. For >8 A, select a higher-current variant (e.g., STPSC12H065D) instead.

STPSC8H065D Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-220-2

Packaging:: Tube

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:: Through Hole

Supplier Device Package:: TO-220AC

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

STPSC8H065D FAQ

1.How can I place an order for STPSC8H065D through Aetrix?

Please submit a Request for Quotation (RFQ) for STPSC8H065D 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 STPSC8H065D reliable?

The price and inventory of STPSC8H065D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPSC8H065D is usually 5 days.

3.What payment methods are accepted for STPSC8H065D?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPSC8H065D transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPSC8H065D?

STPSC8H065D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPSC8H065D 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 STPSC8H065D?

For technical support, including STPSC8H065D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPSC8H065D requirements.

6.How does Aetrix verify that STPSC8H065D is sourced from the original manufacturer or authorized distributors?

All STPSC8H065D 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 STPSC8H065D meets industry standards.

7.What is the process for return or replacement of STPSC8H065D?

All STPSC8H065D units undergo pre-shipment inspection (PSI). If there is an issue with STPSC8H065D, 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 STPSC8H065D part is unused and in its original packaging.

Return procedure for STPSC8H065D:

1.Submit a request within 90 days.

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

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