BUK9Y40-55B N-Channel MOSFET 55V 26A LFPAK56 (Nexperia)
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Prices updated: 13 Oct 2026
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About this product
A Nexperia N-channel power MOSFET rated 55V and 26A in the compact LFPAK56 (Power-SO8) package. It suits power switching such as motor drives, load switches and DC-DC stages, and its listed on-resistance of 0.034 Ω helps limit conduction losses.
Specifications
- Drain-source voltage
- 55 V
- Continuous drain current
- 26 A
- On-resistance (Rds(on))
- 0.034 Ω
- Channel type
- N-channel
- Package
- LFPAK56 (Power-SO8), SMD
Frequently asked questions
Can I drive it directly from a microcontroller?
Gate drive voltage matters, because on-resistance and gate threshold depend on VGS. Check the datasheet curves for your gate voltage, and use a gate driver if a 3.3V or 5V MCU output cannot fully enhance the device.
How do I manage heat at higher currents?
LFPAK56 is a surface-mount package that dissipates heat mainly through its copper pad. Use a wide copper area or thermal vias on the PCB, and check the datasheet thermal resistance values for your design.
