Product Overview
This document outlines the guidelines for using Aluminum Electrolytic Capacitors to ensure optimal performance and extended lifespan. It covers critical aspects such as polarity, voltage limits, ripple current, operating temperature, frequency, storage, and handling during soldering and circuit board cleaning.
Product Attributes
- Brand: TOPAZCON (GuangDong TOPAZ Electronic Technology Co., Ltd.)
- Origin: China
Technical Specifications
| Item | Description |
| Polarity | DC electrolytic capacitors are polarized. Ensure correct polarity to avoid short circuits or damage. Use bipolar capacitors when polarity is not fixed or certain. DC electrolytic capacitors are 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. |
| Voltage Rating | Do not exceed the rated voltage. Recommended working voltage is 70-80% of the rated voltage for extended life. Exceeding rated voltage increases leakage current and may damage the capacitor. |
| Ripple Current | Do not allow excessive ripple current to pass through the capacitor. Exceeding the permissible limit can cause heating, reduced capacitance, and damage. Generally, ripple current should not exceed 80% of the rated value. |
| Charge/Discharge Circuits | For circuits with rapid charge and discharge cycles, use specially designed capacitors to prevent damage, capacitance decrease, and heat rise. |
| Operating Temperature | Capacitor characteristics vary with temperature. Lower operating temperatures ensure longer life. |
| Temperature & Life Relationship | Life is inversely proportional to temperature. A 10C reduction in temperature can double the capacitor's life at rated temperature. Formula provided for calculation. |
| 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 | Capacitors stored for extended periods may experience increased leakage current and reduced withstand voltage. Before use, apply rated DC voltage gradually. |
| 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 | Avoid applying excessive force to terminals and 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 | Use recommended cleaning solvents (Methanol, isopropanol, ethanol, isobutanol, petroleum ether, propane, commercial detergents). Avoid halogenated or similar solvents (trichlorethylene, xylene, acetone) to protect the sleeve, marking, and sealing materials. |
| Soldering | Maintain distance between the soldering iron and the plastic insulated sleeve. For solder dipping, recommendable temperature is within 260C for no more than 10 seconds to avoid damaging the capacitor unit. |
| Hole Layout on PCB | Ensure mounting hole spacing matches lead spacing to prevent stress on leads, short circuits, or circuit damage. Consider hole layout to prevent solder splashing onto the capacitor sleeve. |
2410121956_Guangdong-TOPAZ-Elec-Tech-ECLF0814102M010P00_C156534.pdf
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