The PFV218N50 is a high-voltage N-channel MOSFET manufactured by Fairchild Semiconductor (now ON Semiconductor). It is designed for use in power switching applications requiring high efficiency and reliability. This MOSFET offers a combination of low on-resistance, fast switching speed, and robust avalanche performance.

Applications:

• Switch-mode power supplies (SMPS)
• Power factor correction (PFC) circuits
• Uninterruptible power supplies (UPS)
• DC-DC converters
• Motor drives

Features:

• High blocking voltage: 500V drain-source voltage (VDS) rating.
• Low on-resistance (RDS(on)): Reduces conduction losses and improves efficiency.
• Fast switching speed: Low gate charge (Qg) and output capacitance (Coss) for efficient switching.
• Avalanche ruggedness: Withstands repetitive avalanche events.
• Integrated gate resistor: Simplifies gate drive design and reduces EMI.
• RoHS compliant: Lead-free and environmentally friendly.

Benefits:

• High efficiency: Minimizes power dissipation and reduces heat generation.
• Increased reliability: Robust design and avalanche capability ensure stable operation.
• Simplified design: Integrated features reduce external component count.
• Compact size: Available in a through-hole package for easy mounting.
• Environmentally friendly: Complies with environmental regulations.

Additional Details:

The PFV218N50 is typically packaged in a TO-220 or similar through-hole package. It is characterized by its low on-resistance (RDS(on)), which minimizes conduction losses and improves overall efficiency. The fast switching speed is achieved through low gate charge (Qg) and output capacitance (Coss). The avalanche ruggedness of the device ensures reliable operation even under transient voltage conditions. Consult the official datasheet for detailed electrical characteristics, thermal performance data, and recommended operating conditions. Ensure proper heat sinking is used to maintain the device within its safe operating temperature range. Parameters such as drain current (ID), gate-source voltage (VGS), and power dissipation (PD) should be carefully considered during circuit design. The integrated gate resistor helps to dampen oscillations and reduce electromagnetic interference (EMI).