FMG36S Fast Recovery Diode: Efficient Power Switching for High-Performance Applications

 

In power electronics, efficiency and switching speed are critical for high-performance designs. The FMG36S is a fast recovery diode module optimized for high-speed rectification, low reverse recovery time, and robust thermal performance—making it a popular choice in high-voltage and high-frequency applications such as inverters, UPS systems, and motor drives.

What is the FMG36S?

The FMG36S is a dual diode module in a compact, isolated package. It integrates two high-efficiency fast recovery diodes, each capable of handling significant current with minimal forward voltage drop and very short reverse recovery time. These features help reduce switching losses and improve overall system efficiency.

Key Features of FMG36S

• Dual Diode Configuration: Ideal for use in full-bridge or half-bridge rectifier circuits.

• High Current Capability: Supports continuous average forward current up to 30A (typical).

• High Voltage Rating: Withstands repetitive peak reverse voltages up to 600V.

• Fast Recovery Time: Reverse recovery time typically below 100ns, improving switching efficiency.

• Low Forward Voltage Drop: Reduces conduction losses and improves thermal performance.

• Isolated Package: Simplifies PCB design and enhances electrical safety.

• Compact and Robust Design: Suitable for space-constrained power systems. 

Typical Applications

Thanks to its strong electrical characteristics and thermal reliability, the FMG36S is widely used in:

• ✅ Switching power supplies (SMPS)

• ✅ DC-DC converters

• ✅ Motor control and servo drives

• ✅ UPS and backup power systems

• ✅ Induction heating and welding equipment

• ✅ Renewable energy inverters (solar, wind)

Benefits of Using FMG36S

Feature	Benefit
Fast recovery	Reduces switching losses in high-frequency designs
Dual diode in one package	Simplifies layout and reduces system size
High voltage handling	Suitable for industrial-grade equipment
Efficient thermal management	Enhances reliability under heavy load
Compact module	Saves PCB space in dense designs

Design Considerations

When integrating FMG36S into your power electronics system, consider:

• Proper heatsinking for thermal dissipation during high-current operation.

• Adequate snubber circuitry to mitigate voltage spikes during fast switching.

• PCB layout techniques that minimize parasitic inductance and EMI.

• Matching the diode module with appropriate MOSFETs or IGBTs for optimal switching dynamics.

Conclusion

The FMG36S is an excellent choice for engineers seeking high-speed, high-efficiency rectification in compact and robust module form. Its low reverse recovery time and high voltage capability make it suitable for a wide range of industrial and commercial power conversion applications.