Product Overview

This document outlines the usage guidelines and technical specifications for Aluminum Electrolytic Capacitors manufactured by GuangDong TOPAZ Electronic Technology Co., Ltd. These guidelines are essential for achieving optimal performance and extending the lifespan of the capacitors.

Product Attributes

• Brand: TOPAZCON
• Origin: China (GuangDong)
• Product Type: Aluminum Electrolytic Capacitors
• Series: RF Series

Technical Specifications

Guidelines For Using Aluminum Electrolytic Capacitor

1. Polarity: DC electrolytic capacitors are polarized. Ensure correct polarity to prevent short circuits or damage. Use bipolar capacitors if polarity is uncertain. DC electrolytic capacitors are not suitable for AC applications.

2. Bipolar Capacitors: Suitable for pulse circuits and polarity reverse circuits. Not applicable for pure AC or high ripple current circuits.

3. Voltage: Do not exceed the rated voltage. Recommended working voltage is 70-80% of rated voltage for extended life.

4. Ripple Current: Do not allow excessive ripple current, as it can cause heating, reduced capacitance, and damage. Ripple current should not exceed 80% of the rated value.

5. Fast Charge/Discharge: Use specially designed capacitors for circuits with rapid charge and discharge cycles to prevent damage, capacitance decrease, and heat rise.

6. Operating Temperature: Capacitor characteristics vary with temperature. Lower temperatures generally ensure longer life.

7. Temperature and Life Relationship: Capacitor life is related to operating temperature. A 10 reduction in temperature can double the lifespan at rated temperature. The formula for calculating life is provided: Lx = L0 10(T0-Tx)/Tm (I0/Ix)m where L0 is useful life at ripple current I0 and max temp T0, Tx is actual temp, Ix is actual ripple current, Tm is 5, and m is an exponent.

8. Operating Frequency: Capacitance is typically measured at 100Hz or 120Hz. Capacitance decreases and tg increases with higher frequencies, leading to increased ambient temperature.

9. Long-Term Storage: For capacitors stored for extended periods, leakage current may increase and withstand voltage may decrease. Before use, gradually apply DC voltage up to the rated voltage.

10. Case Insulation: The capacitor case is not insulated from the cathode terminal. If case insulation is required, implement insulation measures at the capacitor's mounting point.

11. Terminal Force: Do not apply excessive force to terminals or leads to prevent breakage, separation, or internal connection failure.

12. Bending Leads: When bending leads for horizontal mounting, maintain a 2mm safe distance from the capacitor body to avoid internal structural damage.

13. Cleaning After Soldering: Use recommended cleaning solvents such as methanol, isopropanol, ethanol, isobutanol, petroleum ether, propanol, and general detergents. Avoid halogenated solvents (trichloroethylene, xylene, acetone) to protect the sleeve, marking, and sealing materials.

14. Soldering Temperature and Duration: Keep soldering irons away from plastic sleeves. When dipping in solder, maintain temperature within 260 and duration not exceeding 10 seconds to prevent damage.

15. Hole Layout on PCB: Ensure mounting hole spacing on the circuit board matches lead spacing to avoid stress on leads. Consider hole layout carefully to prevent solder splashing onto the plastic sleeve.