MLO36-16IO1

SCRs - Modules Overview

The IXYS MLO36-16IO1 is a single-phase AC controller module integrating one thyristor and one diode in a TO-240AA package. It supports a repetitive peak reverse voltage of 1600 V and an RMS on-state current of 39 A at TK = 85°C. The device features a maximum junction temperature of 125°C, a surge current rating of 360 A (10 ms, 50 Hz), and an I²t rating of 645 A²s. Key electrical parameters include a gate trigger current of 65 mA at 25°C, a holding current of 150 mA, and a peak on-state voltage of 1.49 V.

SCRs - Modules Feature Summary

• Integrates a thyristor and a diode into a single compact module for efficient space utilization.
• Utilizes direct copper bonded Al2O3 ceramic base plates to enhance thermal conductivity and power cycling reliability.
• Features planar passivated chips with long wire leads designed for standard printed circuit board soldering.

SCRs - Modules Applications

• Switching and control of single-phase and three-phase AC loads
• Soft-start controllers for AC motors
• Solid-state switches
• Light dimming and temperature control systems

SCRs - Modules Procurement Notes

Verify the specific suffix IO1 against official datasheets to confirm pinout configuration and lead type. Ensure mounting torque specifications are strictly followed during installation to maintain mechanical integrity and thermal performance. Confirm that the selected heatsink provides adequate thermal resistance to keep the junction temperature within the 125°C limit under expected load conditions.

SCRs - Modules Selection Notes

Select this component when a combined thyristor-diode solution is required for mains frequency applications. The 1600 V rating suits high-voltage AC environments, while the 39 A RMS capability handles moderate power levels. Consider the TO-240AA form factor for through-hole PCB integration where low profile and simple mounting via two screws are advantageous over larger modular alternatives.

SCRs - Modules Part Context

This module belongs to the IXYS MLO/MMO series of AC controller components. The MLO designation indicates a single-gate configuration containing one thyristor and one diode, whereas the MMO variant includes dual gates. These modules are engineered for robust operation in industrial AC control circuits, offering improved thermal management compared to discrete component assemblies.

SCRs - Modules Replacement Considerations

The MMO36-16IO1 serves as a functional substitute within the same family, differing primarily by the inclusion of a second gate terminal for enhanced control flexibility. Verify that the additional gate connection does not conflict with existing PCB layout constraints before implementation.

SCRs - Modules FAQ

What is the difference between the MLO36 and MMO36 modules?

The MLO36 module contains one thyristor and one diode with a single gate terminal. The MMO36 module includes two thyristors and two diodes, providing two independent gate terminals for separate control of each thyristor.

How is the isolation voltage defined for this module?

The module offers an isolation voltage of 3600 Vrms tested for 1 second and 3000 Vrms for 1 minute at 50/60 Hz, ensuring safety between the internal semiconductor elements and the external mounting surface.

What is the recommended mounting torque for the module?

The recommended mounting torque is 0.7 Nm (or 6 lb.in.) for the M3 or UNF 4-32 screws to ensure proper mechanical stability and thermal contact without damaging the ceramic substrate.