1/2/4Pcs Dual Audio Grade Capacitors for Valve Amplifiers etc.
Voltage: 500V
32uF + 32uF 500V 35mm dia X 50mm height. 3 Solder tags.
50uF + 50uF 500V 35mm dia x 75mm height. 3 Solder tags.
100uF + 100uF 500V 35mm dia x 80mm height. 3 Solder tags.
Qty:1/2/4Pcs optioanl
After the electrolytic capacitor is left for a long time (2 to 3 months), if it is immediately connected to the rated operating voltage, leakage and heating will be significantly increased.
Therefore, an electrolytic capacitor that has been left on hold for a long time needs an aging (activation) process before it can be used normally.
The specific method is to increase the working voltage at both ends of the electrolytic capacitor step by step until the rated voltage.
If the working voltage of the electrolytic capacitor is 450V, then the following steps can be performed:
First the capacitor is subjected to a voltage of 50V for 10 to 15 minutes
Then, after every 4 to 5 minutes, the voltage is increased by 20V, and the working voltage is gradually increased. To the rated voltage.
For safety reasons, it is generally required to connect a 100K5W current limiting resistor in series to prevent the electrolytic short circuit from damaging the power supply.
The voltage across the 100K resistor can also be used to detect the electrolytic leakage current. If conditions permit, it is also possible to use an adjustable high voltage power supply with a 10mA constant current source for aging.
Normally, the intact electrolytic capacitor has a leakage current of 0.025~0.05mA/microfarad under rated voltage and normal temperature.
Package included:
1/2/4Pcs Amplifier capacitor
Note:
1.Transition: 1cm=10mm=0.39inch
2.Please allow 0-3mm error due to manual measurement. pls make sure you do not mind before you bid.
3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
On 16-Sep-2025 at 09:25:16 BST, seller added the following information: