Guidelines For Using Aluminum Electrolytic Capacitor

To ensure customers obtain optimal performance and extend the service life of aluminum electrolytic capacitors, please read these guidelines carefully before use. Proper handling and adherence to these important points will ensure optimum capacitor performance and long life.

Product Attributes

Brand: TOPAZCON
Manufacturer: GuangDong TOPAZ Electronic Technology Co., Ltd.
Origin: China
Contact: TEL: 86-769-85391636 / 85391626, FAX: 86-769-85325630, E-mail: songshengcw@163.com, Website: www.songshengdg.com
Address: No. 3, Fufu Road, Foziao Village, Dalang Town, Dongguan City, Guangdong Province, China, Postal Code: 523781

Technical Specifications

Item	Description
1. Polarity	DC electrolytic capacitors are polarized. Ensure correct polarity as marked on the capacitor body. Reversed voltage may cause short circuits or damage. Use bipolar capacitors when polarity is uncertain. DC electrolytic capacitors cannot be used for AC applications.
2. Bipolar Capacitors	Suitable only for pulse circuits and polarity reverse circuits. Not applicable in pure AC or high ripple current circuits.
3. Voltage Application	Do not apply voltage greater than rated voltage. Recommended working voltage is 70-80% of rated voltage for extended life. Exceeding rated voltage increases leakage current and may damage the capacitor.
4. Ripple Current	Do not allow excessive ripple current. Exceeding permissible limits causes heating, capacitance reduction, and capacitor damage. Ripple current should not exceed 80% of the rated value.
5. Charge/Discharge Circuits	Use specially designed capacitors for circuits with rapid charge and discharge cycles to prevent damage, capacitance decrease, and heat rise.
6. Operating Temperature	Capacitor characteristics vary with temperature. Lower temperatures ensure longer life. At higher temperatures, capacitance and leakage current increase, and tg decreases. At lower temperatures, capacitance and leakage current decrease, and tg increases.
7. Temperature vs. Life	Capacitor life is related to operating temperature. Generally, a 10C reduction in temperature doubles the life at rated temperature. Formula provided for calculation.
8. Operating Frequency	Capacitance is typically measured at 100Hz or 120Hz. Capacitance decreases and tg increases with higher frequencies, leading to increased ambient temperature.
9. Long-Term Storage Treatment	For capacitors stored for extended periods, apply rated DC voltage gradually before use. Storage may increase leakage current and decrease withstand voltage.
10. Case Insulation	The capacitor case is not insulated from the cathode terminal. If case insulation is required, implement insulation measures at the mounting point.
11. Terminal/Lead Force	Do not apply excessive force to terminals or leads to prevent breakage, separation, or internal connection failure.
12. Bending Leads	When bending leads for horizontal mounting, maintain a 2mm safe spacing from the capacitor body to avoid internal structural damage.
13. Circuit Board Cleaning	Use recommended cleaning solvents like methanol, isopropanol, ethanol, etc. Avoid halogenated solvents (trichloroethylene, xylene, acetone) to protect the capacitor body.
14. Soldering	Maintain distance between soldering iron and plastic sleeve. For dip soldering, keep temperature within 260C and duration under 10 seconds to prevent damage.
15. Hole Layout on PCB	Ensure mounting hole spacing matches lead spacing to avoid stress on leads, short circuits, or circuit damage. Consider hole layout to prevent solder splashing onto the capacitor sleeve.

2304140030_Guangdong-TOPAZ-Elec-Tech-ECRF1016100M451P00_C156804.pdf

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