onsemi

MUR420G

MUR420G Description

The MUR420G from onsemi is a high-performance 200V, 4A general-purpose diode designed for fast-recovery applications. Part of the SWITCHMODE™ series, it features a reverse recovery time (trr) of just 35 ns, making it ideal for high-frequency switching circuits. With a forward voltage (Vf) of 890 mV at 4A, this diode minimizes power losses, enhancing efficiency in power conversion systems. Its low reverse leakage current (5 µA @ 200V) ensures reliable performance under high-voltage conditions. Packaged in an axial form factor, the MUR420G is suitable for through-hole mounting, offering robust mechanical and electrical stability.

MUR420G Features

• Fast Recovery Time: ≤500 ns, optimized for >200mA operation, ensuring minimal switching losses.
• Low Forward Voltage Drop: 890 mV @ 4A reduces heat dissipation and improves energy efficiency.
• High Reverse Voltage: 200V rating provides reliable operation in high-voltage environments.
• Low Leakage Current: 5 µA @ 200V enhances performance in precision circuits.
• RoHS3 & REACH Compliant: Environmentally friendly and meets global regulatory standards.
• Axial Package: Simplifies PCB assembly and offers durability in industrial applications.

MUR420G Applications

The MUR420G excels in:

• Switching Power Supplies: Fast recovery minimizes losses in flyback and boost converters.
• Freewheeling Diodes: Protects inductive loads in motor drives and relay circuits.
• High-Frequency Rectification: Ideal for inverters, UPS systems, and SMPS designs.
• Industrial Electronics: Suitable for harsh environments due to its robust construction.
• Automotive Systems: Reliable performance in voltage clamping and transient suppression.

Conclusion of MUR420G

The MUR420G stands out as a high-efficiency, fast-recovery diode with superior performance in demanding applications. Its low Vf, ultra-fast trr, and high voltage tolerance make it a preferred choice for power electronics designers. Whether used in switching regulators, industrial controls, or automotive systems, this diode delivers reliability, efficiency, and compliance with environmental standards. For engineers seeking a cost-effective, high-performance solution, the MUR420G is an excellent fit.