STP12NM50 N-Channel MOSFET 500V 12A TO-220
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Prices updated: 13 Oct 2026
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About this product
The STP12NM50 is an N-channel power MOSFET in a TO-220 package, rated at 500 V drain-source voltage and 12 A continuous drain current. It is used as a switch in power supplies, inverters, motor drives and other high-voltage switching circuits.
Specifications
- Type
- N-channel MOSFET
- Drain-source voltage (VDS)
- 500 V
- Continuous drain current (ID)
- 12 A
- Package
- TO-220
Frequently asked questions
Can a microcontroller pin drive the gate directly?
This is a standard-gate MOSFET that is normally driven with about 10 V on the gate. Check the datasheet's gate threshold and drive recommendations before connecting it directly to a 3.3 V or 5 V microcontroller pin; a gate driver or level-shifting stage is usually needed.
Does it need a heatsink?
At higher currents the TO-220 package will heat up, so mount it on a suitable heatsink and check the thermal ratings in the datasheet for your operating conditions.
