What Is the IRF540N? 100V N-Channel Power MOSFET: Pinout and Uses
The IRF540N is a common N-channel power MOSFET. It is similar to the IRFZ44N but offers a 100 V rating (~33 A, R_DS(on) ~44 mΩ). It is used in higher-voltage switching and motor control. It is standard-level: it needs ~10 V at the gate to fully turn on; for a 5V MCU choose the logic-level IRLZ44N. Pinout TO-220 G-D-S.
The IRF540N is a common N-channel power MOSFET. It is similar to the IRFZ44N but offers a higher voltage rating (100 V). It is used in higher-voltage switching and motor control. For the concept, see what is a MOSFET.
What is the IRF540N used for?
PWM motor driving, power switching, DC-DC converters and higher-voltage (≤100 V) loads. It is standard-level: it needs ~10 V at the gate to fully turn on; to drive directly from a 5 V MCU choose the logic-level IRLZ44N.
IRF540N pinout (TO-220)
Front face forward, left to right: G – D – S. The metal tab is the drain.
| Pin | Function |
|---|---|
| 1 | Gate (G) |
| 2 | Drain (D) |
| 3 | Source (S) |
Specifications
| Parameter | Value |
|---|---|
| Type | N-channel MOSFET (standard level) |
| VDS | 100 V |
| ID | ~33 A |
| RDS(on) | ~44 mΩ |
| VGS(th) | ~2–4 V |
Equivalents
- IRFZ44N: lower voltage (55 V), lower RDS(on).
- IRF640: a close 200 V class part.
- IRL540N: the logic-level version.
Find it in our catalog
Use the IRF540N search.