Content last revised on March 14, 2026
Mitsubishi PM15CKF120 | Compact 1200V/15A CIB Module for Integrated Motor Drives
The Mitsubishi PM15CKF120 is an intelligently engineered Power Integrated Module (PIM) designed to streamline the development of low-power motion control systems. By co-packaging a three-phase converter bridge, a three-phase inverter, and a brake chopper circuit into a single, compact housing, this module offers a significant advantage in applications where board space, assembly time, and system reliability are critical design drivers.
Key Parameters Overview
This module is engineered for robust performance in demanding industrial environments.
| Parameter | Value |
|---|---|
| Collector-Emitter Voltage (VCES) | 1200V |
| Collector Current (IC) | 15A |
| Collector-Emitter Saturation Voltage (VCE(sat)) | 2.7V (Typ.) at IC = 15A |
| Topology | CIB (Converter-Inverter-Brake) |
| Maximum Power Dissipation (PC) - Inverter | 68W per IGBT |
Core Application Scenarios & Engineering Value
The PM15CKF120 is not a general-purpose switch; it is a purpose-built solution for specific power conversion tasks. Its value is most evident in applications requiring a complete AC-DC-AC topology with regenerative braking capability, typically in the 0.75kW to 2.2kW power range.
- Compact Variable Frequency Drives (VFDs): In small motor drives, every square centimeter of PCB is valuable. The integrated CIB topology of the PM15CKF120 replaces up to 10 discrete components (diodes, IGBTs, freewheeling diodes), drastically reducing the system footprint and simplifying the power stage layout.
- Robotic Servo Drives: Precision and dynamic response are paramount in robotics. The integrated brake chopper is essential for managing the regenerative energy generated during rapid deceleration of a robotic arm. This prevents DC bus overvoltage faults and allows for tighter control loops, directly contributing to the powering precision of servo systems.
- Material Handling Systems: For conveyors and small hoists that frequently start, stop, and reverse, the braking circuit is non-negotiable. This module provides a thermally and electrically optimized solution out of the box, reducing the design burden associated with sizing and laying out a discrete brake circuit.
Technical Deep Dive: The CIB Advantage
The true engineering benefit of the Mitsubishi PM15CKF120 lies in its high level of integration. A Converter-Inverter-Brake module represents a complete front-end and motor drive stage.
- Converter Stage: A three-phase diode bridge rectifies the incoming AC line voltage to create the internal DC bus.
- Inverter Stage: A six-pack of IGBT modules and their associated freewheeling diodes form a standard three-phase inverter to drive the motor.
- Brake Chopper Stage: A seventh IGBT and freewheeling diode are included, ready to be connected to an external braking resistor. This is critical for dissipating returned motor energy.
This level of integration, often referred to as a Power Integrated Module (PIM), minimizes the parasitic inductance between stages, which can reduce voltage overshoots during switching. Furthermore, it consolidates thermal management to a single, flat baseplate, simplifying heatsink design and ensuring more predictable system temperatures.
Selection Guidance: PM15CKF120 vs. A Discrete Solution
For engineers designing low-power drives, a key decision is whether to use an integrated module or a solution built from discrete components. While discrete designs offer granular component choice, the PM15CKF120 provides compelling system-level benefits:
- Accelerated Time-to-Market: By using a pre-validated, integrated power stage, engineering teams can focus on control logic and application-specific features rather than on the complexities of power layout and component interaction.
- Reduced Assembly Complexity: Mounting and connecting one module is significantly faster and less error-prone than placing and soldering numerous discrete diodes and IGBTs. This directly lowers manufacturing costs.
- Enhanced Reliability: The internal connections within the module are manufactured in a controlled environment, eliminating a significant number of solder joints—a common point of failure in power systems. Understanding the trade-offs is key, as discussed in the analysis of integrated modules versus discrete components.
For applications below 3kW that require braking and a compact form factor, the Mitsubishi PM15CKF120 often presents the optimal balance of performance, cost, and design efficiency. If your project requires a robust, space-saving power solution, contact our technical team to discuss how this module can fit into your design.
