Aluminum Electrolytic Capacitor - Usage Guidelines

This document provides essential guidelines for the proper use and handling of Aluminum Electrolytic Capacitors manufactured by GuangDong TOPAZ Electronic Technology Co., Ltd. Adhering to these instructions will ensure optimal performance, extended lifespan, and prevent potential damage to the capacitors and associated circuits.

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: http:www.songshengdg.com
Address: No. 3, Fofu Road, Foziao Village, Dalang Town, Dongguan City, Guangdong Province, China, Postal Code: 523781

Technical Specifications

The following guidelines detail critical parameters and usage considerations for Aluminum Electrolytic Capacitors:

Parameter	Description
Polarity	DC electrolytic capacitors are polarized. Ensure correct polarity to prevent short circuits or damage. Use bipolar capacitors for uncertain polarity. Not suitable for AC applications.
Bipolar Capacitors	Suitable for pulse circuits and polarity reverse circuits only. Not applicable for pure AC or high ripple current circuits.
Operating Voltage	Do not exceed rated voltage. Recommended working voltage is 70-80% of rated voltage for extended life. Exceeding rated voltage increases leakage current and may cause damage.
Ripple Current	Do not allow excessive ripple current. Exceeding permissible limits causes heating, capacitance reduction, and damage. Ripple current should generally not exceed 80% of the rated value.
Charge/Discharge Circuits	Use specially designed capacitors for circuits with rapid, repeated charge and discharge cycles to prevent damage, capacitance decrease, and heat rise.
Operating Temperature	Capacitor characteristics vary with temperature. Lower temperatures ensure longer life. Capacitance and leakage current decrease, while tg increases at lower temperatures.
Temperature & Life Relationship	Capacitor life is related to operating temperature. Reducing temperature by 10 can double the lifespan at rated temperature. Formula provided for calculation: Ls = L0 * 2^((T0-Tx)/10) where L0 is useful life at rated ripple current (I0) and max temp (T0), Tx is actual operating temp, Ix is actual ripple current. (Note: Formula in source text is complex and potentially misformatted, simplified explanation provided).
Operating Frequency	Capacitance is typically measured at 100Hz or 120Hz. Capacitance decreases and tg increases with rising frequency, leading to higher ambient temperature.
Long-Term Storage	For capacitors stored for extended periods, apply rated DC voltage gradually before use. Storage may increase leakage current and decrease withstand voltage.
Case Insulation	The capacitor case is not insulated from the cathode terminal. 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 avoid internal structural damage.
Circuit Board Cleaning	Clean circuit boards with recommended solvents (Methanol, isopropanol, ethanol, isobutanol, petroleum ether, propanol, commercial detergents). Avoid halogenated solvents (trichlorethylene, xylene, acetone) to protect sleeve, marking, and sealing materials.
Soldering	Maintain distance between soldering iron and plastic sleeve. Recommended soldering temperature is within 260 for no more than 10 seconds to prevent damage.
Hole Layout	Ensure circuit board hole spacing matches lead spacing to avoid stress on leads. Consider hole layout to prevent solder splashing onto the capacitor sleeve.

1809271940_Guangdong-TOPAZ-Elec-Tech-ECRF0809100M161P00_C156985.pdf

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