How to properly using the Aluminum Electrolytic Capacitor in end-place or circuits boards ?
Aluminum electrolytic capacitors may cause explosion,fire,or other serious hazard if used outside the specified operating conditions. Please familiarize yourself with the instructions below before using these capacitors.ItemInstructionsOperating temperature, ripple current1.Check the operating and installation environment and use the capacitor within the range of the rated performance specified in the catalog or specifications．2.Maintain operating temperature and ripple current within the specified ranges. Base your choice of capacitors on the maximum load conditions.A capacitor will overheat under excessive current,potentially resulting in short circuit, fire, or other major failure.3.A capacitor also generates the self heating.Please bear in mind that the capacitor heats up the interior of the equipment,and take appropriate precautions.Operate the unit under normal conditions and check the temperature of the area surrounding the capacitor.4.The permissible ripple current declines with the rise in ambient temperature (the temperature of the capacitor's surroundings). Consider the permissible ripple current at the maximum predictable ambient temperature.5.Electric characteristics change as frequencies change. Check frequency changes in order to choose the right capacitor. Special attention needs to be given to the self heating and short life time both low and high frequency,when equivalent series resistance and inductance change.Applied voltage and other operating conditions1.In general,capacitors have polarity.Applying reverse voltage or AC voltage to a capacitor may activate the vent or cause a short circuit, fire or other major failure. Use a special AC capacitor for AC voltage.2.Use a bipolar capacitor for circuits whose polarity reverses. However, as in any other case, do not use a bipolar capacitor in an AC circuit．3.Do not apply voltage in excess of the rated voltage. When an AC voltage is superimposed on DC voltage. prevent the peak value from exceeding the rated voltage. Excessive voltage may cause a short circuit, fire, or other major failure．4.Specifications on surge voltage have restricted conditions and therefore do not guarantee long hours of operation.Voltage should never exceed the rated voltage of the capacitor. even for brief periods. Choose your capacitor accordingly.5.When connecting more than one capacitor in parallel,give proper consideration to the resistance of the wiring.Establish the connections so that the wiring resistance will be equal at every capacitor.6.When connecting more than one capacitor in series, all must be of identical rating, then the balancing resistors connected in parallel. At that time, design the circuit so that equal voltage levels are applied to all the capacitors. Ascertain that the voltage applied to each individual capacitor does not exceed its rated voltage.7.Take into account the service life of the equipment in the use of the capacitor. Use of the capacitor beyond its service life risks such failures as safety vent activation or short circuit. Replace as necessary at regular inspection.8.Do not use a capacitor for a circuit that is quickly charged and discharged repeatedly. Use a dedicated capacitor for an application like a welding unit or photo flash charging/discharging. Consult us for selecting the proper capacitor, since the control circuits of certain rotation equipment, like servo motors, charge and discharge repeatedly.9.Even slow charging/discharging can shorten the service life of a capacitor, resulting in premature failure, where there are marked changes in voltage changes. Check the installation in your equipment carefully and consult us.10. General purpose capacitors should not be used for a circuit involving rapid charge and discharge or an A.C. circuit. Capacitors specially made for such applications should be used.
→Check the self heating of the capacitor used in such a circuit in addition to the types and levels to be imposed to the capacitor of the rapid charge/discharge, rush current and voltage.Before installation1.Check the specifications of the capacitors, and install them within the prescribed specifications.2.Do not reverse the polarity. Do not use a capacitor where reverse voltage is applied, even if it appears problem-free. Not taking these precautions could lead to a major failure.3.Dropping or otherwise impacting a capacitor may result in a decline in its electric performance, causing a failure. Do not use any capacitor whose packaging has a noticeable abnormality on delivery.4.Do not distort the shape of the capacitor, which may lead the major failures such as liquid leakage or short circuit.5.Do not reuse a capacitor that has previously been installed on a machine and energized. No capacitor can be reused ( with the exception
of removal for measuring electrical performance during periodic checkups).Shenmao:The Foremost Leading manufacturer of Aluminum Electrolytic Capacitor over 49 years！Shenmao:The Foremost Leading manufacturer of Aluminum Electrolytic Capacitor over 49 years！