MX878R

Overview

The MX878R is a high-voltage, high-speed silicon carbide (SiC) Schottky diode manufactured by IXYS Integrated Circuits Division. It features a robust planar chip design optimized for low forward voltage drop and fast switching characteristics. The device is housed in a TO-247AD package, providing excellent thermal performance and mechanical stability for demanding power electronics applications.

Feature Summary

• Utilizes silicon carbide semiconductor technology for superior thermal conductivity and high-temperature operation capabilities.
• Features a planar junction structure designed to enhance reliability and reduce leakage current variations.
• Engineered with ultra-fast recovery characteristics to minimize switching losses in high-frequency circuits.

Applications

• High-efficiency DC-DC converters
• Uninterruptible power supply (UPS) systems
• Induction heating inverters

Procurement Notes

Verify the specific suffix 'R' indicates the correct tape-and-reel packaging configuration if automated assembly is required. Confirm that the TO-247AD lead form matches your PCB footprint requirements. Ensure the operating temperature range aligns with your system's thermal management design before finalizing procurement.

Selection Notes

Select this component when high-temperature stability and reduced switching losses are critical. The SiC material offers advantages over traditional silicon diodes in harsh environments. Evaluate the peak repetitive reverse voltage and average forward current ratings against your circuit's maximum stress conditions to ensure adequate safety margins.

Part Context

This device belongs to IXYS's portfolio of wide-bandgap power semiconductors. It complements other SiC diodes in their lineup, targeting applications requiring higher efficiency than silicon-based solutions can provide. The product line emphasizes durability and performance in industrial and automotive-grade power conversion systems.

Replacement Considerations

Direct replacements must match the TO-247AD package and SiC Schottky type. Verify equivalent voltage and current ratings from manufacturers like Wolfspeed or ROHM. Ensure thermal resistance and pinout compatibility are identical to avoid redesigning the heatsink interface or PCB layout.

FAQ

What is the primary advantage of using SiC in the MX878R?

Silicon carbide provides a wider bandgap, allowing for higher breakdown voltages and better thermal conductivity compared to silicon, resulting in lower switching losses and higher efficiency.

Does the MX878R have an internal body diode?

No, the MX878R is a discrete Schottky diode. It does not contain an integrated body diode as it is not a MOSFET; it functions solely as a rectifying element.