STMicroelectronics STPSC15H12D

Overview

STPSC15H12D from STMicroelectronics is a 1200 V, 15 A silicon carbide Schottky power rectifier in TO-220AC package, designed for high-efficiency hard-switching applications. It delivers negligible reverse recovery, temperature-independent switching, low 1.35 V typical forward voltage at 15 A and 25 °C, and operates from –40 °C to 175 °C junction temperature - enabling robust use in EV charging stations and solar boost converters.

For engineers reviewing the STPSC15H12D datasheet, STPSC15H12D pinout, STPSC15H12D application, or STPSC15H12D equivalent, key selection criteria include its zero-recovery behavior, 1200 V blocking capability, thermal robustness up to 175 °C, low conduction loss profile, and TO-220AC mechanical compatibility with standard heatsink mounting.

Technical Context

This SiC Schottky diode leverages wide-bandgap silicon carbide to achieve a 1200 V rating without PN-junction trade-offs. Its unipolar conduction eliminates minority-carrier storage, resulting in no reverse recovery charge (Qrr ≈ 0) and minimal capacitive turn-off ringing - critical for reducing EMI and snubber losses in high-frequency PFC and DC–DC stages.

The device exhibits stable VF across temperature (1.35 V typ. at 25 °C; 1.75 V typ. at 150 °C) and low junction-to-case thermal resistance (0.45 °C/W typ.), supporting high-power density designs. Its 105 A non-repetitive surge current (tp = 10 ms, TC = 25 °C) ensures resilience during line transients and inrush events.

Key Specifications

Pinout & Package

STPSC15H12D uses the TO-220AC package: single-ended, insulated tab, through-hole mounting, with case acting as cathode terminal. Thermal interface requires torque-controlled fastening (0.55 N·m recommended) to aluminum heatsinks.

Key Features

Applications

Equivalent & Alternatives

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

Compared with C3D15120D and IXYS DSSK15-12A, STPSC15H12D uniquely combines TO-220AC mountability, lowest VF among 1200 V/15 A SiC diodes, and guaranteed zero-recovery operation - making it optimal for space-constrained, high-efficiency EV and solar systems requiring drop-in thermal and mechanical compatibility.

Availability

STPSC15H12D is available at Aetrix Electronics and suitable for EV charging stations, solar boost converters, and PV inverters requiring stable component supply, long-lifecycle assurance, and ECOPACK2-compliant sourcing.

Supply support for STPSC15H12D 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 microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

STPSC15H12D belongs to the STPOWER SiC Diode product line, engineered specifically for high-efficiency, high-reliability power conversion in renewable energy and electric mobility systems where thermal resilience and zero-recovery performance are non-negotiable.

FAQ

What is the maximum allowable case temperature for continuous operation?

The STPSC15H12D is rated for continuous operation with case temperature up to 155 °C when delivering 15 A DC, as specified in the absolute maximum ratings table. Exceeding this limit risks exceeding the 175 °C junction temperature ceiling, especially under high ambient or poor heatsink contact conditions.

Does STPSC15H12D require a gate drive or external control signal?

No - STPSC15H12D is an uncontrolled two-terminal power diode with no gate terminal. It conducts forward current when anode voltage exceeds cathode voltage by >1.35 V and blocks reverse voltage up to 1200 V without any external bias or timing signal.

Can STPSC15H12D be used in parallel configurations?

Yes, but only with matched devices and symmetrical PCB layout. Its positive VF temperature coefficient (VF increases with T_j) provides inherent current sharing; however, thermal coupling between paralleled units must be identical to prevent thermal runaway.

Is the TO-220AC case electrically isolated from the leads?

No - the metal tab (case) is internally connected to the cathode terminal. Electrical isolation requires a dielectric washer and shoulder washer assembly when mounting to a grounded heatsink; ST recommends using ST's recommended torque value of 0.55 N·m.