Electrical – Polarised vs non Polarised Capacitor

capacitordatasheet

Page 18. of http://www.ti.com/lit/ds/symlink/tlv5606.pdf shows a polarised capacitor. In a case like this, does it really matter whether the capacitor is polarised or not, as long as the capacitance value is as specified?

Best Answer

The symbol shown in the data sheet is for a polarized capacitor, however the part that most likely would be used here is a 0.1 uF ceramic capacitor which is non-polarized. There is no reason to use a polarized capacitor in this case. Polarized capacitors are usually high valued electrolytic capacitors used for power supply bulk decoupling.