55 V, 5 A N-channel switch in SOT-223
It is housed in a surface-mount SOT-223 package with the drain tab as the primary thermal path.
Gate charge and drive voltage — switching budget
The specified drive voltage range of 4.5 V to 10 V for achieving rated Rds(on) lets the designer trade gate-drive complexity against conduction loss. Input capacitance of 380 pF at 25 V drain-source confirms the gate drive load is light; a standard microcontroller GPIO with 10 mA source-sink capability charges the gate in under 40 ns.
Thermal and temperature range
Maximum power dissipation is 1 W at 25 °C ambient; the SOT-223 drain tab must be soldered to an adequate copper area on the PCB to keep the junction below the 150 °C ceiling at full current. Derate the 5 A continuous current rating above 25 °C case temperature — at 100 °C case temperature the allowable drain current drops to approximately 3.5 A, following the typical MOSFET derating curve.
