Identifying the component ID
Identifying the component ID
Trying to identify this component. I have traced the main power to the top side of it, but nothing past it. Resistance measurements in both directions were into the M ohms. Any info and specs would be greatly appreciated.
This appears to be an SMD capacitor, likely a 330μF rated at 12V. The markings suggest it’s designed for specific placement among other parts, which helps identify its function. You might be able to confirm the details by checking its location and intended use.
Thank you for the update. This appears to be an HP Envy x360 motherboard. The image should assist in identifying it. I also verified it in diode mode, showing approximately 1.2 volts in one direction and 0.58 volts in the other.
It's just a capacitor. Unlikely it's a problem and it's pointless to measure it in circuit. If there's a problem with that power circuitry it's more likely to be a MOSFET or controller around it. That controller at the middle/top seems to have rework marks already.
I have tested the mosfets in that area and all test good. The circuit from the dc plug to the top of the capacitor is good and from the bottom of the capacitor to the battery is good. There is a full 19.6 volt drop across the cap.
The cap would probably sit between ground and a rail, making its voltage across it typical. A power rail cap is almost certainly fine unless it experiences a short circuit, which clearly isn’t happening in this situation.