In DC applications, confirm the polarity. If the polarity is reversed, the circuit life will be shortened or the capacitor may be damaged. Generally, an intermittent reverse voltage of 1 volt DC is allowed. Capacitors used in circuits whose polarity is occasionally reversed or whose polarity is unknown requires the use of a bi-polar capacitor.

In DC applications, confirm the polarity. If the polarity is reversed, the circuit life will be shortened or the capacitor may be damaged. Generally, an intermittent reverse voltage of 1 volt DC is allowed. Capacitors used in circuits whose polarity is occasionally reversed or whose polarity is unknown requires the use of a bi-polar capacitor.