Customized Aluminum Electrolytic Capacitor Large Storage Capacity
Brand Name:SG
Certification:VDE , CQC
Model Number:Aluminum Electrolytic Capacitor
Minimum Order Quantity:Negotiate
Delivery Time:Negotiate
Payment Terms:T/T, L/C
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Location:
Dongguan Guangdong China
Address:
Baisha Sancun Industrial Zone, Humen Town, Dongguan City, Guangdong Province, China
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Product Details
Stable Performance Small Size Aluminum Electrolytic Capacitor Large
Storage Capacity
Aluminum electrolytic capacitor is a polarized capacitor. Its
positive plate is made of aluminum foil, which is immersed in the
electrolyte for anodic oxidation treatment. A layer of aluminum
oxide film is formed on the surface of the aluminum foil, and its
thickness is generally 0.02~0.03μm . This layer of oxide film is
the insulating medium between the positive and negative plates. The
negative electrode of the capacitor is composed of electrolyte, and
the electrolyte is generally composed of boric acid, ammonia water,
ethylene glycol, etc. In order to facilitate the manufacture of
capacitors, the electrolyte solution is usually impregnated on a
special paper, and then a piece of original aluminum foil is pasted
together with the paper soaked in the electrolyte solution, so that
the negative electrode can be easily drawn on the original aluminum
foil strip, such as Figure 1a shows. The core of the aluminum
electrolytic capacitor is formed by winding the above-mentioned
positive and negative electrodes according to their central axis,
and then the core is enlarged and packaged in an aluminum shell to
form an aluminum electrolytic capacitor. In order to keep the
electrolyte solution from leaking or drying up, a rubber plug is
used to seal the mouth of the aluminum case.
In order to obtain a large capacitance and a small volume, chemical
etching is used to form a rough surface on one side of the positive
aluminum foil, so that the surface area of the electrode is
increased, thereby increasing the capacitance.
The reason why aluminum electrolytic capacitors have polarity is
that the aluminum oxide film on the positive plate has
unidirectional conductivity. Only when the positive pole of the
capacitor is connected to the positive pole of the power supply,
and the negative pole is connected to the negative pole of the
power supply, the aluminum oxide film can function as an insulating
medium. effect. If the polarity of the aluminum electrolytic
capacitor is reversed, the aluminum oxide film will become a
conductor, and the electrolytic capacitor will not only fail to
function, but also cause overheating and damage the capacitor due
to a large current passing through it.
In order to prevent accidental explosion accidents when aluminum
electrolytic capacitors are in use, a grooved mechanical weak link
is generally pressed on the end face of the aluminum shell. Once
the internal pressure of the electrolytic capacitor is too high,
the groove of the weak link will crack for pressure relief and
explosion protection. .
Although aluminum electrolytic capacitors have polarity, if new
methods are adopted in structure and process, non-polar
electrolytic capacitors can also be made.
Aluminum electrolytic capacitors have the following
characteristics:
①The capacitance per unit volume is particularly large, and the
price per unit capacity is the lowest.
② Aluminum electrolytic capacitors are polarized.
③The dielectric constant is relatively large, generally 7~10.
④The capacity error is large, the loss is large, and the leakage
current is large, and the capacity and loss will change with the
change of temperature.
⑤The working temperature range is narrow, only suitable for working
in the temperature range of -20℃~+50℃.
⑥The working voltage is low, generally 6.3-400V.
⑦The price is not expensive.
Temperature characteristics:
Measurement Impedance at +20 ±2°C, 1,00kHz ±20%
Measurement Impedance at -25 ±2°C, 1,00kHz ±20%
Measurement Impedance at -55 ±2°C, 100kHz ±20%
Impedance ratio of the -25 and -55°C values to the +20°C value
shall be not exceed the following values
| Who Can Use: | Electronic ManuFacture ,Components Trader; |
| Where Can Use: | LED light devices, UPS power supplies, electri vehicles, routers, high-end audio, telephones, inverters, fast charging power supplies, sockets, smart meters, new energy solars, car charging piles |
| Material Option: | Natural Cotton;Organic cotton;Bamboo/cotton;Bamboo;Cotton guaze; Cotton interlock |
| Feature: | 1. Used in communication equipments, switching power supply, etc. 2.Load life 3000 hours at 105°C 3.RoHS compliant |
| Packaging: | Normal OPP bag;PVC bag;Customized bag; |
| Carton size: | 30*330*52cm OR Customized |
| Gross Weight: | 25.0 KGS |
| S/O Lead time: | 7-10 days |
| Full Size Sample Lead time: | As usual 3-7 working days |
| Production Lead time: | 7 days for available designs,Customized: 15-20 days |
Application
FAQ
Q: Are you trading company or manufacturer ?
A: We are the professional factory in China.
Q: What is the material of your products?
A: The material is metallized film for capacitors used Grade A+. We can also choose material as customers' requirement.
Q: How can us get some samples?
A: We are honored to offer you samples. if you need!
We are willing to sign NDA effect by customer side local law and
promising to keep customers data in high confidential level.!
Customized Aluminum Electrolytic Capacitor Large Storage Capacity
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