Comparison Table Of Common MOS Tube Models

MOS tube, the full name is MOSFET (Metal–Oxide–Semiconductor Field-Effect Transistor, metal oxide semiconductor field effect transistor), which is the most common field effect transistor (FET).It is widely used in power supplies, motor drives, signal switches, amplifier circuits and other fields.

There are many types of MOS tubes, and different manufacturers, different packages and electrical parameters vary greatly.Let Lichuang help you organize oneCommon MOSFET model comparison table, covering N-channel/P-channel, low voltage/high voltage, power type/small signal type. Common models for easy selection reference:

A brief selection guide for MOS tubes

1. Select by polarity

• Low-side switch (ground terminal control): choose N-channel MOSFET
• High-end switch (power supply side control): Commonly used P-channel MOSFET, or use a drive circuit to match N-channel

2. Select by voltage

• Vds≥1.3~2 times of the input voltage (leave a margin)
• For example: 12V circuit → choose ≥30V MOS tube

3. Select by current

• Id≥2 times the load current (leave a margin)

4. Select according to power consumption & on-resistance

• High current applications: Try to choose models with low Rds(on)
• High-frequency switching (DC-DC, drive): Pay attention to Qg (gate charge) to avoid excessive switching losses

5. Select by package

• Small current situations: SOT-23, SOT-223
• Medium and large current: TO-220, DPAK, DFN8