Overview
The Mitsubishi QM30DY-H is a medium-power switching transistor module engineered for demanding industrial applications. Rated at 30A collector current and 600V collector-emitter voltage, this NPN-type power transistor delivers the current-handling capacity and voltage isolation required in modern power electronics. The device features a silicon construction housed in a plastic/epoxy package with 7 pins, providing robust thermal and electrical performance in compact form.
Key Features
- 30A collector current (IC) rating for high-power switching
- 600V collector-emitter voltage (VCEX) for voltage isolation
- 2-element NPN power bipolar transistor configuration
- 7-pin plastic/epoxy insulated package
- Designed for general-purpose applications requiring high current handling
- Proven Mitsubishi Electric manufacturing quality
Technical Specifications
- Device Type: Power Bipolar Transistor (NPN)
- Collector Current (IC): 30A
- Collector-Emitter Voltage (VCEX): 600V
- Package Type: Plastic/Epoxy, 7-pin
- Silicon Construction: Yes
- Insulation Type: Insulated
Typical Applications
The QM30DY-H excels in high-power switching circuits where reliability and performance are critical:
- Motor Drives: Variable frequency drives (VFDs) and motor speed controllers requiring precise current and torque management
- Power Inverters: DC-to-AC conversion in industrial power supplies and solar inverter systems
- Uninterruptible Power Supplies (UPS): Backup power switching and control circuits
- Industrial Automation: Robotics, servo control, and process automation switching circuits
- Transit Systems: Drive and control circuits for rail vehicles and rapid transit applications
Compatibility & Replacements
Compatible With
- Industrial motor drive systems and VFD controllers
- Power converter and inverter topologies
- PLC output modules and analog control interfaces
- High-power switching circuits requiring 30A/600V ratings
- Custom power electronics assemblies
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or OEM documentation before ordering. The QM30DY-H is a direct replacement in applications originally designed for this specific part number.
Works With
- Mitsubishi Automation systems and controllers
- General industrial power electronics platforms
- Custom and OEM motor drive designs
- Power conversion and switching circuit boards






