GuangDong TOPAZ Electronic Technology Co., Ltd. - Aluminum Electrolytic Capacitor Usage Guidelines

This document provides essential guidelines for the optimal performance and extended lifespan of Aluminum Electrolytic Capacitors manufactured by GuangDong TOPAZ Electronic Technology Co., Ltd. It covers critical aspects such as polarity, voltage, current, temperature, and handling to ensure proper application and prevent damage.

Product Attributes

Brand: TOPAZCON
Origin: China
Part Name: E-CAP
Series: LF Series

Technical Specifications

Item	Description
1. Polarity	DC electrolytic capacitors are polarized. Ensure correct polarity to prevent short circuits or damage. Use bipolar capacitors for uncertain polarity. DC electrolytic capacitors are not suitable for AC applications.
2. Bipolar Capacitors	Suitable for pulse circuits and polarity reverse circuits. Not applicable for pure AC or high ripple current circuits.
3. Voltage	Do not exceed the 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 the permissible limit causes heating, capacitance reduction, and capacitor damage. Generally, ripple current should not exceed 80% of the rated value.
5. Charge/Discharge Circuits	For circuits with rapid charge/discharge cycles, use specially designed capacitors to prevent damage, capacitance decrease, and heat rise.
6. Operating Temperature	Capacitor characteristics vary with temperature. Lower temperatures generally ensure longer life.
7. Temperature and Life Relationship	Capacitor life is temperature-dependent. A 10 reduction in operating temperature can double the lifespan compared to 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	Capacitors stored for extended periods may experience increased leakage current and reduced withstand voltage. Before use, apply rated DC voltage gradually.
10. Case Insulation	The capacitor case is connected to the cathode terminal via the electrolyte. If case insulation is required, implement insulation measures at the mounting point.
11. Force on Terminals/Leads	Avoid applying excessive force to terminals and leads to prevent breakage, separation, and internal connection failure.
12. Bending Leads	When bending leads for horizontal mounting, maintain a 2mm safe distance from the capacitor body to prevent internal structural damage.
13. Circuit Board Cleaning	Use recommended cleaning solvents (Methanol, Isopropanol, Ethanol, etc.). Avoid halogenated or similar solvents (trichloroethylene, xylene, acetone) to protect the capacitor's sleeve, marking, and sealing materials.
14. Soldering	Maintain distance between the soldering iron and the plastic insulating sleeve. For solder dipping, recommended temperature is within 260 for no more than 10 seconds to prevent damage.
15. Hole Layout on PCB	Ensure mounting hole spacing matches lead spacing to avoid stress on leads. Consider hole layout to prevent solder splashing onto the capacitor sleeve.

2304140030_Guangdong-TOPAZ-Elec-Tech-ECLF0812471M016P00_C156569.pdf

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