STP5NK52ZD Power MOSFET N-Channel 5A 520V
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Prices updated: 13 Oct 2026
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About this product
STP5NK52ZD is an N-channel power MOSFET rated at 520 V and 5 A, supplied in a TO-220 package. It has integrated Zener protection on the gate and is used as a switching element in power supplies, SMPS, lighting ballasts and other high-voltage switching circuits.
Specifications
- Device type
- N-channel power MOSFET
- Drain-source voltage (VDS)
- 520 V
- Drain current (ID)
- 5 A
- Package
- TO-220
- Gate protection
- Integrated Zener diodes
Frequently asked questions
Can I drive this MOSFET directly from a microcontroller pin?
It is not recommended to drive it directly from a microcontroller pin because the gate needs a sufficient drive voltage and current for fast switching. Use a gate driver or a suitable transistor stage between the MCU and the gate, and add a gate resistor.
What should I check before using it in a circuit?
Verify that the drain-source voltage and drain current ratings have adequate margin for your circuit, and check the heatsinking and gate drive requirements in the datasheet for the exact part.
