Aluminum Electrolytic Capacitor Usage Guidelines

This document provides essential guidelines for the optimal performance and extended lifespan of Aluminum Electrolytic Capacitors. Please read these instructions carefully before use.

Product Attributes

Brand: TOPAZCON
Manufacturer: GuangDong TOPAZ Electronic Technology Co., Ltd.
Origin: China
Contact: TEL: 86-769-85391636 / 85391626, FAX: 86-769-85325630, Email: 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

The following guidelines detail critical parameters for the effective use of 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 and polarity-reverse circuits only. Not 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 ripple current to exceed permissible limits. Exceeding limits causes heat, capacitance reduction, and damage. Generally, not more than 80% of rated current.
Charge/Discharge Circuits	Use specially designed capacitors for circuits with rapid charge/discharge cycles to prevent damage, capacitance decrease, and heat rise.
Operating Temperature	Capacitor characteristics vary with temperature. Lower temperatures ensure longer life. Usage at lower temperatures will ensure longer life.
Temperature and Life Relationship	Life is related to operating temperature. A 10C reduction in temperature approximately doubles the lifespan at rated temperature. Formula provided for calculation.
Operating Frequency	Capacitance is typically measured at 100Hz or 120Hz. Capacitance decreases and tg increases with higher frequencies, leading to increased ambient temperature.
Storage and Usage	For capacitors stored long-term, 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. Insulate the case at the mounting point if line insulation is required.
Terminal/Lead Force	Do not apply excessive force to terminals or leads to prevent breakage, separation, or internal connection failure.
Bending Leads	When bending leads for horizontal mounting, maintain a 2mm safe distance from the capacitor body to prevent internal structural damage.
Circuit Board Cleaning	Clean circuit boards with recommended solvents (Methanol, Isopropanol, Ethanol, etc.). Avoid halogenated solvents (trichloroethylene, xylene, acetone) to protect the capacitor body, markings, and sealing materials.
Soldering	Maintain distance between soldering iron and plastic sleeve. For solder dipping, recommend temperature within 260C and duration not exceeding 10 seconds to prevent damage.
Hole Layout	Ensure mounting hole spacing on circuit boards matches lead spacing to avoid stress on leads. Consider hole layout carefully to prevent solder splashing onto the capacitor sleeve.

2304140030_Guangdong-TOPAZ-Elec-Tech-ECRE1013471M025P00_C156882.pdf

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