ACEPACK 1 and 2

The space-saving, low-profile ACEPACK 1, and ACEPACK 2 power modules combine high-power density with reliability in a low-cost plastic package. These power modules are available in different topologies including six-pack (3-phase full-bridge), converter-inverter-brake (CIB), 3-level, four-pack, and half-bridge with a current rating from 5 to 100 A and a voltage rating from 650 to 1200 V

Featuring an embedded NTC thermistor, these highly reliable power modules offer the best compromise between conduction and switching losses and can maximize the efficiency of any very high frequency converter system in hard-switching circuitries for a power range from 3 to 30 kW depending on the application’s internal configuration.

One of the key benefits of ACEPACK 1 and 2 is their capability to integrate different technologies in both silicon carbide and silicon (such as IGBTs and high-voltage MOSFETs).

Furthermore, for ensuring flexible and stable mounting, PressFIT and additional soldered pin options are available.

ACEPACK 1 and 2 power modules belong to our STPOWER family:
  • Compactness: Integration in power modules reduces the size of your solution and simplifies the BOM.
  • ACEPACK modules use ST’s advanced silicon technology and best-in-class silicon-carbide MOSFETs
  • ST is an independent device manufacturer with full control of the supply chain.

To help find the appropriate ACEPACK STPOWER module that best fits their application, designers can download and install our STPOWER Module finder mobile app. A user-friendly product selector, this tool ensures a smooth and simple navigation experience with a parametric search engine that lets you rapidly identify the right product. Available on Google Play and App Store.


The ACEPACK 1 and 2 power modules are specifically optimized for industrial applications including industrial motor drives, solar panels, UPS, welding tools, charging stations and power management solutions.

They are also tailored for automotive applications such as on-board chargers (OBC) and DC-DC converters.

  • Induction Motor Control
  • PMSM / BLDC Motor Control
  • Switched Reluctance Motor Control
  • Solar Centralized Generation
  • Energy Distribution
  • Industrial Power Supply
  • DC-DC Converters
  • AC-DC Converters

Product types

The product portfolio includes silicon IGBT and MOSFET and SiC MOSFET based power modules with nominal voltage ratings from 650 up to 1200V and current ratings from 5 to 100 A.


  • High-power density
  • High reliability and robustness
  • Compact design and cost-effective system approach
  • High flexibility enabling developers to implement several topologies in different power switching devices
  • Simplified, reliable, and durable mounting
  • Supply chain security guaranteed by ST for silicon solutions (SiC MOSFETs, Si MOSFETs, IGBTs, and diodes)


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