ACEPACK power modules come in a variety of topologies and form factors to cover a wide range of automotive and industrial applications.

Our large product portfolio allows you to choose the right power converter topology for your application. For the automotive market, ACEPACK modules are tailored for main traction inverters, OBC, DC-DC and AC-DC converters, HVAC, and climate control. For industrial, the modules offer significant benefits in charging stations, solar inverters, UPS, and motor drive applications.

ACEPACK power modules are easy to implement thanks to their highly reliable and compact all-in-one design that ensures very high power density and reduced time to market.

The state-of-art power switches and other ACEPACK features ensure that our power modules offer the best compromise between conduction and switching energies to maximize the efficiency of any converter system, from a few kilowatts to hundreds of kilowatts.

The power modules are based on proven SiC MOSFET, IGBT, and diode technologies. Different pinout solutions are available to improve flexibility and the choice between Press-FIT and soldered pin connection facilitates assembly.

ACEPACK power modules are based on different layers, including a copper-ceramic-copper substrate that allows high flexibility in converter topologies and optimizes driving and power loops. The substrate ensures electrical insulation and guarantees very low thermal resistance.

ACEPACK power modules are part of the STPOWER family.


The ACEPACK power modules offer a very large product portfolio covering several converter topologies for a wide range of automotive and industrial applications.

Product types

The product portfolio includes silicon IGBT and SiC MOSFET power modules with nominal voltage ratings from 650 up to 1200V, targeting a power range from tens to more than 300 kilowatts.

Thanks to the flexible, compact, and robust design, the ACEPACK power modules allow you to address different power converter stages for automotive and industrial applications.

The ACEPACK power module class consists of:

Top view of ACEPACK 1 & ACEPACK 2
ACEPACK 1 and ACEPACK 2 power modules target power applications ranging from a few to hundreds of kilowatts and are available in several topologies implementing SiC MOSFET or IGBT-diode switch technologies. The IGBT and diode power modules are optimized for industrial motor control with CIB and sixpack topology at 650V and 1200V voltage ratings. The SiC MOSFET-based configurations are tailored for industrial applications such as energy generation and distribution, power supplies and converters like solar panels, charging stations, and UPS. Next generation ACEPACK 1 and 2 will be automotive-compliant solutions for high-power DC-DC converters, HVAC, and auxiliaries.
Top and bottom view of ACEPACK DRIVE
ACEPACK DRIVE is a very compact, direct-liquid-cooled, sixpack module family optimized for hybrid and electric vehicle traction inverters. These power modules implement power semiconductor switches based on the latest ST SiC technology guaranteeing unequaled R DS(on), limited switching and conduction energies, and outstanding performance during synchronous rectification operation. Compared to standard market solutions, the module ensures superior system efficiency even during regenerative braking. The ACEPACK DRIVE family helps maximize the mileage of electric vehicles and allow smaller battery packs. The direct liquid-cooled base plate on ACEPACK DRIVE modules optimizes thermal performance and product lifetime is improved thanks to the sintering technology used for die attach and the AMB substrates. The ACEPACK DRIVE features a voltage rating from 750 V to 1200 V.
Top view of ACEPACK DMT-32
ACEPACK DMT-32 dual in-line, molded, through-hole, 32-pin power module is all-in-one solution tailored for BEV/HEV applications. It allows you to reduce your time-to-market for complex topologies with high power density and high efficiency. The DMT-32 offers fourpack, sixpack, and totem pole converter topologies featuring 1200V SiC MOSFETs. The state-of-the-art ST SiC technology and wide product portfolio ensure comprehensive power range and application coverage, including OBC, DC-DC converters, fluid pumps, and air conditioning.


  • Automotive- and industrial-grade products
  • Reduce system costs and time to market
  • Various SiC MOSFET or IGBT and diode power switch configuration according to application requirements
  • High reliability and robustness
  • Wide power range from a few to hundreds of kW
  • Extremely high power density and efficiency
  • Optimal thermal performances thanks to the AMB or DBC insulated substrate
  • Multiple compact and flexible topologies
  • Minimized stray inductances and driving loops
  • Press-FIT and soldered pin connections
  • Integrated NTC sensor


eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.

Power Management Design Center

Thermal-electrical Simulators for Components

Signal Conditioning Design Tool

NFC/RFID Calculators

Choose design tool:

Power Supply Design Tool

SMPS design, by topology, by type and by product
PFC design with analog and digitial control
Supports various PCB configurations
Choose type:
Solar Battery Charger

LED Lighting Design Tool

Handles AC-DC and DC-DC design in common topologies
Displays interactive and annotated schematic
Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data
Choose type:

Digital Power Workbench

Provides a step-by-step optimized design of power section and control loop
Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs

Power Tree Designer

Specify input/output power for each node in the tree
Check for consistency
Design each individual node
Choose design tool:

AC Switches Simulator

Select ratings and application waveforms
Get junction temperature and blocking voltage graphs
Search and sort suitable devices

Rectifier Diodes Simulator

Select ratings and application waveforms
Estimate power losses
Search and sort suitable devices


Supports long mission profiles
Provides power loss and temperature graphs
Helps define heatsink thermal properties

Twister Sim

Help select the right ViPOWER Automotive power device
Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis
Supports various PCB configurations

TVS Simulator

Specify system ratings and surge waveform
Search and sort suitable devices


Build simple schematics and firmware inputs in minutes
Quickly generate reliable estimates of battery life, system power consumption and bill of materials costs
Choose design tool:

Active Filters

Handles multi-stage-designs and common topologies
Returns circuit component values
Provides gain, phase and group delay graphs
Low Pass, High Pass and Band Pass


Handles most common configurations
Returns circuit components values
Provides I/O signal waveforms
Inverting, Non Inverting, Window

Low side Current Sensing

Returns circuit component values
Provides current error graphs

High side Current Sensing

Provides current error graphs.
Help to select the right High side current sensing and shunt devices.
Choose design tool:

NFC Inductance

Input geometry and substrate properties
Get antenna impedance

UHF Link Budget

Enter forward and reverse link characteristics
The tool returns link budget estimate

NFC Tuning Circuit

Enter antenna parameter and matching target
Select the topology of the matching network
The tool returns component values for the desired design targets