Small-signal P-Channel switch for 60 V rails
It comes in a standard SOT-23-3 surface-mount package (Infineon code PG-SOT23-3-5). This is the part you reach for when you need a high-side load switch, a battery-protection pass element, or a signal-level inverter on a 12 V, 24 V, or 48 V rail where the load stays under 180 mA.
Rds(on) is specified at 5.5 Ohm maximum with 180 mA drain current and 10 V gate drive. At 180 mA the voltage drop across the channel is about 1 V, and the conduction loss is 180 mW — nearly half the 400 mW package power dissipation budget. For continuous operation at 85 °C ambient, you will want to derate the current to keep junction temperature under 150 °C. The 5.5 Ohm figure also tells you this is not a power-switching FET; it is a signal-level or light-load device.
Gate charge and capacitance — drives from a GPIO
Those numbers are low enough that a microcontroller GPIO pin can switch this FET on and off at tens of kilohertz without an external driver. The gate threshold voltage is 2 V maximum at 11 µA drain current, so 3.3 V logic will turn it fully on for loads under a few milliamps, but for the full 180 mA rating you need the 4.5 V or 10 V drive levels listed.