STMicroelectronics STPSC6H065D

Overview

STPSC6H065D from STMicroelectronics is a 6 A, 650 V silicon carbide (SiC) Schottky power diode in insulated TO-220AC package, designed for high-efficiency PFC and LLC resonant converters. It delivers zero reverse recovery charge, temperature-independent switching, 2500 VRMS insulation, 7 pF typical package capacitance, and 175 °C maximum junction temperature.

For engineers reviewing the STPSC6H065D datasheet, STPSC6H065D pinout, STPSC6H065D application, or STPSC6H065D equivalent, this device is selected for hard-switching AC/DC front-ends where low conduction loss, minimal EMI from ringing, and robust surge handling under transient overload are critical design requirements.

Technical Context

This SiC Schottky diode replaces conventional silicon fast recovery diodes in high-frequency, high-voltage rectification stages. Its wide bandgap enables a 650 V blocking rating with low forward voltage and negligible reverse recovery-eliminating tail current and associated switching losses.

The insulated TO-220AC package provides galvanic isolation between the die and mounting surface, enabling direct heatsink attachment without insulating washers while maintaining 2500 VRMS dielectric strength. Thermal resistance is 2.9–4.2 °C/W (junction-to-case), supporting stable operation at 175 °C junction temperature.

Key Specifications

Pinout & Package

STPSC6H065D uses an insulated TO-220AC package with electrically isolated tab (2500 VRMS). The case serves as the cathode terminal; the lead is the anode. No internal gate or control pins exist - it is a two-terminal unidirectional power diode.

Key Features

Applications

Equivalent & Alternatives

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

Compared with C3D06065E and SS16HE3/57T, STPSC6H065D uniquely integrates 2500 VRMS insulation into the TO-220AC form factor-reducing BOM count, eliminating insulator placement errors, and guaranteeing isolation integrity without process dependency.

Availability

STPSC6H065D is available at Aetrix Electronics and suitable for server power supplies, industrial motor drives, EV onboard chargers, and solar inverters requiring stable component supply and long-term production continuity.

Supply support for STPSC6H065D 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, designing and manufacturing analog, microcontroller, power, and sensor solutions 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 AC/DC conversion in demanding power electronics systems.

FAQ

What is the maximum recommended case temperature for continuous operation?

The STPSC6H065D is rated for I_F(AV) = 6 A at T_c = 110 °C when mounted on an insulated heatsink. Exceeding this temperature reduces allowable average current per derating curves in DS9064 Figure 5. Sustained operation above 110 °C requires proportional current reduction to maintain T_j ≤ 175 °C.

Does this diode require a gate driver or external bias circuit?

No. STPSC6H065D is a passive two-terminal power diode with no gate, control pin, or bias requirement. It conducts forward current when anode voltage exceeds cathode voltage by ≥ V_F, and blocks reverse voltage up to 650 V without auxiliary circuitry.

Can STPSC6H065D replace a standard silicon FRD in an existing PFC design?

Yes-with layout verification. Its zero Q_rr eliminates snubber networks, but its lower V_F and higher dV/dt immunity may alter gate drive timing margins. Thermal interface must accommodate the insulated tab; mechanical mounting torque must be 0.55 N·m (max 0.70 N·m).

What is the meaning of "ECOPACK®2" compliance for this part?

ECOPACK®2 certifies STPSC6H065D as RoHS-compliant, halogen-free (Br < 900 ppm, Cl < 900 ppm, total halogens < 1500 ppm), and compliant with ST's material declaration standards. It meets EU Directive 2011/65/EU and supports environmental reporting for industrial and energy equipment.