GuangDong TOPAZ Electronic Technology Co., Ltd. - Aluminum Electrolytic Capacitors 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. Please read these instructions carefully before use.

Product Attributes

Brand: TOPAZCON
Origin: Guangdong, China
Product Type: Aluminum Electrolytic Capacitors (E-CAP)
Series: RE Series

Technical Specifications

Parameter	Description
Polarity	DC electrolytic capacitors are polarized. Ensure correct polarity to prevent short circuits or damage. Use bipolar capacitors when polarity is uncertain. DC electrolytic capacitors are not suitable for AC applications.
Bipolar Capacitors Usage	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.
Ripple Current	Do not allow ripple current to exceed permissible limits. Generally, not more than 80% of rated current. Excessive ripple current causes heating, capacitance reduction, and damage.
Charge/Discharge Circuits	For circuits with rapid charge/discharge cycles, use specially designed capacitors to prevent damage, capacitance decrease, and heat rise.
Operating Temperature	Capacitor characteristics vary with temperature. Lower temperatures ensure longer life.
Temperature & Life Relationship	For every 10 decrease in operating temperature, the lifespan doubles. Formula provided for calculation: Ls = L0 * 2^((T0-Tx)/10). (Note: Full formula details are complex and omitted for brevity, referring to the original document for precise calculation parameters like I0, Ix, T, etc.)
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 Treatment	For capacitors stored for extended periods, gradually apply DC voltage up to the rated voltage before use. This addresses potential increases in leakage current and reduced withstand voltage.
Case Insulation	The capacitor case is not insulated from the cathode terminal. Insulation measures are required at the mounting point if case insulation is necessary.
Terminal/Lead Force	Avoid applying excessive force to terminals and leads to prevent breakage, separation, or internal connection failure.
Lead Bending	When bending leads for horizontal mounting, maintain a 2mm safe distance from the capacitor body to prevent internal structural damage.
Circuit Board Cleaning	Use recommended cleaning solvents like Methanol, Isopropanol, Ethanol, etc. Avoid halogenated solvents (e.g., trichlorethylene, xylene, acetone) to protect the sleeve, marking, and sealing materials.
Soldering	Maintain distance between soldering iron and plastic sleeve. For solder dipping, recommend temperature within 260 and duration not exceeding 10 seconds to prevent damage.
Hole Layout on PCB	Ensure mounting hole spacing matches lead spacing to avoid stress on leads. Carefully consider hole layout to prevent solder splashing onto the capacitor body.

2410122013_Guangdong-TOPAZ-Elec-Tech-ECRE1318471M063P00_C156995.pdf

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