IRF3205 Power MOSFET 55V 110A N-Channel TO-220 Transistor

IRF3205 Power MOSFET – 55 V, 110 A, N‑Channel, TO‑220
The IRF3205 is a high‑performance, N‑channel power MOSFET housed in a rugged TO‑220 package. Designed for demanding switching and linear applications, it can handle up to 55 V drain‑source voltage and a continuous drain current of 110 A, making it ideal for motor drives, DC‑DC converters, battery‑management systems, and high‑current LED drivers. Its silicon‑controlled structure provides fast turn‑on/turn‑off times and excellent thermal conductivity, so the device stays cool even under heavy load.

What students will learn:
Working with the IRF3205 gives students hands‑on insight into power electronics fundamentals—how MOSFETs control large currents, the importance of gate‑drive design, and techniques for managing heat dissipation (heat‑sink selection, thermal resistance calculations). They’ll also explore switching loss calculations, the impact of R_DS(on) on efficiency, and practical layout considerations for high‑current PCB traces.

Key features & why it’s great:

• Ultra‑low R_DS(on): 4.5 mΩ at V_GS = 10 V, delivering high efficiency and minimal heat.
• Robust current rating: 110 A continuous (180 A pulsed) for demanding power stages.
• Fast switching: Typical turn‑on/off times under 100 ns, perfect for high‑frequency converters.
• TO‑220 package with excellent thermal performance: Supports heat‑sink mounting with a thermal resistance as low as 0.75 °C/W.
• Wide temperature range: –55 °C to 150 °C, ensuring reliable operation in harsh environments.

Because of its combination of low on‑resistance, high current capability, and dependable thermal handling, the IRF3205 is a go‑to choice for both laboratory experiments and real‑world power‑electronics projects—giving students a professional‑grade component that bridges theory and practice.