What is this component?
Can someone link me to an equivalent replacement, haven't been able to find anything
D5SV17
This component? D5SV17
components
Related Solutions
This looks like either a ceramic disk capacitor or a thermistor. Those two are easy to distinguish. Test it with a ohmmeter, and a capacitor will read like a open circuit. A thermistor will have some finite resistance. Then warm it up with your hand and see if it changes. Make sure to not be touching the leads when you measure it warm, else your body resistance will distort the reading. If the resistance changed (probably lower) a decent measurable amount from hand warming, you should be able to see it slowly go back to the original value as it cools back to room temperature.
If this is a capacitor, it is probably in the range of a few pF to a few nF. Thermistors can vary from a few Ω to a few 100kΩ in the same package between models.
Best Answer
The massive planes and the small tap off of the gate suggest a switching power supply design, so I assumed a power MOSFET. The Q on the silkscreen is another telling sign. This marking chart looks much the same, note the line over the year and week.
In addition this pinout looks about right to the usage. The only confusion is the capacitor between gate and source. A little bit of context might help that. Hope this helps.