Description

The Aluminum Electrolytic Capacitor is a polarized component, characterized by its asymmetrical construction. It necessitates operation with a higher voltage (i.e., more positive) on the anode than on the cathode at all times. To indicate this polarity requirement, the anode terminal is designated with a plus sign, while the cathode is marked with a minus sign.

Usage Instructions for Aluminum Capacitors

1. Safety Precautions

• • • Discharge the Capacitor: Before handling, ensure the capacitor is fully discharged to avoid electric shock. Use a resistor or insulated screwdriver to short the terminals.
    • Check Polarity: Aluminum electrolytic capacitors are polarized. Always connect the positive (+) terminal to the higher voltage side and the negative (-) terminal to the lower voltage side.
    • Avoid Overvoltage: Do not exceed the rated voltage of the capacitor, as this can cause failure or explosion.
    • Temperature Limits: Operate within the specified temperature range to prevent damage.

2. Selecting the Right Capacitor

• • • Match Capacitance: Choose a capacitor with the exact capacitance value required for your application (e.g., 5µF, 10µF, 30+5µF, etc.).
    • Voltage Rating: Ensure the capacitor’s voltage rating is higher than the maximum voltage in the circuit.
    • Dual Capacitors (e.g., 30+5µF): These are used in applications requiring two capacitance values, such as HVAC systems. Connect each section to its respective circuit.