Product Overview
Guidelines for using Aluminum Electrolytic Capacitors to ensure optimal performance and extended lifespan. This document details critical usage considerations for DC electrolytic capacitors, including polarity, voltage, ripple current, temperature, frequency, storage, and handling to prevent damage and ensure reliability.
Product Attributes
- Brand: TOPAZCON
- Origin: GuangDong, China
- Product Type: Aluminum Electrolytic Capacitor
Technical Specifications
| Item | Description |
|---|---|
| Polarity | DC electrolytic capacitors are polarized. Ensure correct polarity to prevent short circuits or damage. Use bipolar capacitors for uncertain polarity. Not for AC applications. |
| Bipolar Capacitors | Suitable for pulse and polarity reverse circuits. Not for pure AC or high ripple current circuits. |
| Voltage | Do not exceed rated voltage. Recommended working voltage is 70-80% of rated voltage for extended life. |
| Ripple Current | Do not exceed permissible ripple current. Exceeding limits causes heating, capacitance reduction, and damage. Generally, not more than 80% of rated current. |
| 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 temperatures ensure longer life. |
| Temperature & Life Relationship | Life is inversely proportional to temperature. Reducing temperature by 10 doubles 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 higher ambient temperature. |
| Storage | 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. Insulation measures are required at the mounting point if case insulation is necessary. |
| Force on Terminals/Leads | 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 | Use recommended solvents like methanol, isopropanol, ethanol, etc. Avoid halogenated solvents (trichlorethylene, xylene, acetone) to protect sleeve, marking, and sealing materials. |
| Soldering | Keep soldering iron away from plastic sleeves. Recommended solder bath temperature is within 260 for no more than 10 seconds to avoid damage. |
| Hole Layout on PCB | Ensure hole spacing on PCBs matches lead spacing to avoid stress on leads. Consider hole layout carefully to prevent solder splashing onto the capacitor body. |
1809271917_Guangdong-TOPAZ-Elec-Tech-ECRE0812100M161P00_C156956.pdf
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