Product Overview
This document provides guidelines for the proper usage and handling of Aluminum Electrolytic Capacitors manufactured by GuangDong TOPAZ Electronic Technology Co., Ltd. Following these instructions will ensure optimal capacitor performance and extend their service life.
Product Attributes
- Brand: TOPAZCON
- Origin: Guangdong, China
- Part Name: E-CAP
- Series: LJ Series
Technical Specifications
| Parameter | Description |
| Polarity | DC electrolytic capacitors are polarized. Polarity is marked on the capacitor body. Reversed voltage may cause short circuit or damage. Use bipolar capacitors when polarity is not determined or unknown. DC electrolytic capacitors cannot be used for AC applications. |
| Bipolar Capacitors Usage | Suitable for pulse circuits and polarity reverse circuits. Not applicable in pure AC or high ripple current circuits. |
| Voltage Application | Working voltage should not exceed rated voltage. Recommended working voltage is 70-80% of rated voltage to prolong life. Exceeding rated voltage increases leakage current and may damage the capacitor. |
| Ripple Current | Ripple current should not exceed the permissible limit, generally not more than 80% of the rated value. Excessive ripple current causes heating, capacitance reduction, and damage. |
| Fast Charge/Discharge Circuits | Use specially designed capacitors for circuits with rapid 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. |
| Temperature and Life Relationship | Life is related to operating temperature. Reducing temperature by 10 can double the life compared to rated temperature. Formula provided for calculation: Ls = L0 * 2^((T0-Tx)/10) * (I0/Ix)^m, where L0 is useful life at I0 and T0, T0 is max operating temp, Tx is actual operating temp, Tm is 5, Ix is actual ripple current, I0 is rated ripple current. |
| Operating Frequency | Capacitance is usually 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, leakage current may increase and withstand voltage may decrease. Before use, gradually apply DC voltage up to the rated voltage. |
| Case Insulation | The capacitor case is not insulated from the cathode terminal. If insulation is required, it must be implemented at the capacitor's mounting point. |
| 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 avoid internal structural damage. |
| Circuit Board Cleaning | Use recommended cleaning solvents like methanol, isopropanol, ethanol, isobutanol, petroleum ether, propane, and commercial detergents. Avoid halogenated solvents (trichloroethylene, xylene, acetone) to protect the sleeve, marking, and sealing materials. |
| Soldering | Keep soldering irons away from plastic sleeves. When dipping in solder bath, maintain temperature within 260 and duration not exceeding 10 seconds to prevent component damage. |
| Circuit Board Hole Layout | Mounting hole spacing should match lead spacing to avoid stress on leads. Consider hole layout carefully to prevent solder splashing onto the capacitor body, which can cause damage. |
1809271919_Guangdong-TOPAZ-Elec-Tech-ECLJ0511101M016P00_C157012.pdf
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