In a simple electronic circuit consisting of an ideal (perfect) capacitor and a resistor, equivalent series resistance (ESR), also known as internal resistance, represents the loss of useful energy.This capacitor leaks current 0.001mA.
CWR06KC105KB/PR Features
a leakage current of 0.001mA in this capacitor
CWR06KC105KB/PR Applications
There are a lot of Vishay Sprague CWR06KC105KB/PR applications of tantalum capacitors.