SMD electrolytic capacitor is broken, teach you how to identify

Some manifestations of the damage of SMD electrolytic capacitors are: 1. Complete loss of capacitance, reduced capacitance, slight, serious leakage, loss of capacitance, reduced capacitance, and current leakage.

How to find damaged electrolytic capacitors:

1. Look: some SMD electrolytic capacitors swell after being damaged, and even oil stains appear on the surface of the capacitor. This kind of SMD electrolytic capacitor cannot be used continuously.

2. Touch: The electrolytic capacitor that has a serious leakage after power on will heat up, and it will be hot when touched. This kind of electrolytic capacitor must be replaced.

3. The electrolyte is in the electrolytic capacitor, so it is important to check the capacitor and high-power components near the hot plate. If the distance is too close, the possibility of damage will be greater.

4. Using a digital multimeter, ground the other pin to one pin of the gears on both sides, and measure the two sides of the capacitor respectively to show the short circuit fault of the patch electrolytic capacitor.

How to find damaged patch electrolytic capacitors: 1. Look: some patch electrolytic capacitors expand after being damaged, and even oil stains appear on the surface of the capacitor. This type of patch electrolytic capacitor cannot be used. 2. Touch: The electrolytic capacitor that has a serious leakage after power on will heat up, and it will be hot when touched. This kind of electrolytic capacitor must be replaced.