Guidelines For Using Aluminum Electrolytic Capacitor

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

Product Attributes

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

Technical Specifications

Item	Description
1. Polarity	DC electrolytic capacitors are polarized. Ensure correct polarity; it is 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 the rated voltage. Recommended working voltage is 70-80% of the rated voltage to prolong life. Exceeding rated voltage increases leakage current and may damage the capacitor.
4. Ripple Current	Do not allow excessive ripple current to pass through the capacitor. Exceeding the permissible limit causes heating, capacitance reduction, and damage. Ripple current should not exceed 80% of the rated value.
5. Charge/Discharge Circuits	Use specially designed capacitors for circuits with rapid, repeated 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 in source text for calculation).
8. Operating Frequency	Capacitance is usually measured at 100Hz or 120Hz. Capacitance decreases and tg increases with higher frequencies, leading to increased ambient temperature.
9. Storage Treatment	For capacitors stored for a long time, apply rated DC voltage gradually before use. Long 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, take insulation measures at the mounting point.
11. Terminal/Lead Force	Do not apply excessive force to terminals and 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. Cleaning	Clean circuit boards with recommended solvents (Methanol, isopropanol, ethanol, isobutanol, petroleum ether, propanol, and general detergents). Avoid halogenated solvents (trichloroethylene, xylene, acetone) to protect the sleeve, marking, and sealing materials.
14. Soldering	Keep soldering irons away from plastic sleeves. For dip soldering, maintain temperature within 260C and duration not exceeding 10 seconds to prevent damage.
15. Hole Layout	On circuit boards, hole spacing should match lead spacing. Incorrect spacing can stress leads, causing shorts or circuit damage. Consider hole layout carefully to prevent solder splashing onto the sleeve.

2304140030_Guangdong-TOPAZ-Elec-Tech-ECRF1012100M251P00_C156942.pdf

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