GuangDong TOPAZCON 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 TOPAZCON Electronic Technology Co., Ltd. Adhering to these instructions is crucial for ensuring proper functionality and preventing potential damage.

Product Attributes

Brand: TOPAZCON
Origin: China
Product Type: Aluminum Electrolytic Capacitor

Technical Specifications

Specification	Description
Polarity	DC electrolytic capacitors are polarized. Ensure correct polarity to avoid short circuits or damage. Use bipolar capacitors for non-fixed or uncertain polarity. DC electrolytic capacitors are not suitable for AC applications.
Bipolar Capacitors	Suitable for pulse circuits and polarity reverse circuits only. Not applicable in pure AC or high ripple current circuits.
Operating 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.
Ripple Current	Do not allow excessive ripple current. Exceeding the permissible limit causes heating, capacitance reduction, and damage. Generally, ripple current should not exceed 80% of the rated value.
Fast Charge/Discharge Circuits	Use specially designed capacitors for circuits with frequent charge and discharge cycles to prevent damage, capacitance decrease, and heat rise.
Operating Temperature	Capacitor characteristics vary with temperature. Lower operating 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.
Temperature & Life Relationship	Capacitor life is temperature-dependent. A 10 reduction in operating temperature generally doubles the lifespan compared to rated temperature. Formula provided for calculation: L_x = L₀ 2^(T0-Tx)/10 (where L_x is useful life at actual operating temperature Tx, L₀ is useful life at max operating temperature T₀).
Operating Frequency	Capacitance is typically measured at 100Hz or 120Hz. Capacitance decreases and tg increases with higher frequencies, leading to increased ambient temperature.
Long-Term Storage	Capacitors stored for extended periods may experience increased leakage current and reduced withstand voltage. Before use, gradually apply DC voltage up to the rated voltage.
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.
Terminal/Lead Force	Do not apply excessive force to terminals or leads to prevent breakage, separation, or internal connection failure.
Lead Bending	When bending leads for horizontal mounting, maintain a 2mm safe spacing from the capacitor body to prevent internal structural damage.
Circuit Board Cleaning	Use recommended cleaning solvents such as methanol, isopropanol, ethanol, isobutanol, petroleum ether, propane, and general detergents. Avoid halogenated solvents (trichloroethylene, xylene, acetone) to protect the sleeve, marking, and sealing materials.
Soldering	Keep soldering irons away from the plastic insulated sleeve. For solder dipping, maintain temperature within 260 and duration not exceeding 10 seconds to avoid damaging the capacitor unit.
Hole Layout on PCB	Ensure mounting hole spacing on the circuit board matches lead spacing to prevent stress on leads, short circuits, or increased leakage current. Consider hole layout to prevent solder splashing onto the capacitor body.

2304140030_Guangdong-TOPAZ-Elec-Tech-ECLF0812102M6R3P00_C156594.pdf

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