What Is the IRF3205? High-Current N-Channel MOSFET and Uses
The IRF3205 is a high-current, very-low-resistance (~8 mΩ) N-channel power MOSFET (55V, TO-220). It is used for motor drive, inverters and high-current switching. It is NOT logic-level: full conduction needs a ~10 V gate, so it won't fully turn on directly from an Arduino (needs a gate driver or IRLZ44N/IRLB8721).
The IRF3205 is a high-current, very-low-resistance (~8 mΩ) N-channel power MOSFET. It is a popular power transistor for high-efficiency switching. For the concept, see what is a MOSFET.
What is the IRF3205 used for?
DC motor drive, inverter/converter stages, high-current switching, power distribution and power circuits needing high efficiency. Its very low RDS(on) means little heating. It is the higher-current relative of the IRFZ44N.
Specifications
| Parameter | Value |
|---|---|
| Type | N-channel power MOSFET |
| VDS | 55 V |
| RDS(on) | ~8 mΩ (very low) |
| Body | TO-220 |
Watch out
The IRF3205 is not logic-level; full conduction needs a ~10 V gate voltage. It won't fully turn on directly from an Arduino (5 V/3.3 V) output; you need a gate driver or a logic-level MOSFET (IRLZ44N/IRLB8721). A series gate resistor and a gate-source pull-down are recommended.
Equivalents
- IRFZ44N: similar, lower current (49A).
- IRLZ44N: logic-level (drivable from an Arduino).
- IRF3708: a logic-level low-RDS(on) alternative.
Find it in our catalog
Use the IRF3205 search.