Series: AC wide termination
Power: 1/16, 1/10, 1/8, 1/4
Dimensions: 0402, 0603, 0805, 1206
Temperature coefficient range (ppm/℃): 50, 50, 50, 50
Minimum tolerance value (%): 0.1, 0.1, 0.1, 0.1
Minimum resistance Ω: 10, 10, 10, 10
Maximum resistance Ω: 1M, 1M, 1M, 7.5M
Aluminium electrolytic capacitor has polarity. When used in electronic circuits, the anode of Aluminium electrolytic capacitor shall be connected to the point with high potential in the circuit, and the cathode shall be connected to the point with low potential
Only then can the electrical function be functioning properly. If the connection is reversed, the leakage current of the capacitor increases sharply, causing severe heating of the core, leading to capacitor failure and possibly
Burning and explosion, damaging other components on the circuit board.
The working voltage of Guoju agents has a certain upper limit. According to the special generation method of dielectric oxide film of Aluminium electrolytic capacitor, the maximum working voltage is generally 500V, and
The development potential is very limited; For other non chemical capacitors, as long as the dielectric thickness is appropriately thickened, the theoretical working voltage can reach any value
Limits.
In terms of the current output of SMD electrolytic capacitor, Aluminium electrolytic capacitor occupy the second place among the capacitors. This type of capacitor was originally a general DC capacitor,
But now it has evolved from DC to AC, from low temperature to high temperature, from low pressure to high voltage, from universal to special, and from general structure to
Slice, flat, book like structures. Its upper limit capacity has been extended to around 4F, and the frequency used by Guoju's first level agents has reached 30kHz, with a working temperature range of
Up to -55 ℃ -125 ℃, some even reach as high as 150 ℃, and the rated voltage has reached 700V. In a word, the development of Aluminium electrolytic capacitor is more and more extensive.
Using the International System of Units, the unit of resistance is ohms (Ω, Ohm). The reciprocal of resistance is conductivity, measured in Siemens (S).
Assuming that the temperature remains constant, many substances will follow Ohm's law, which means that the resistance of the object composed of these substances is constant and does not follow electricity
Current or voltage related. Call these substances' ohmic substances'; Substances that do not comply with Ohm's law are 'non Ohmic substances'.
The function of chip electrolytic capacitor is to store energy effectively. Its capacity generally stores the conductive plate. The plate with positive charge is called anode plate with negative charge is called cathode
The configuration of electrodes, anodes, and cathodes ensures that there is little movement between them. Due to the increase in stored charges in the products represented by Guoju, the electric field of the entire medium increases. This situation leads to
The generated charge increases in proportion to the voltage. The ratio of the potential (voltage) between plates is the charge of each plate, which is called capacitance. The energy stored in the chip electrolytic capacitor
The energy required for the potential of mobile storage charges to pass through capacitors mainly depends on the geometric size of the device's capacitor plate and the properties of the medium. This is proportional to the "dielectric
The electrical constant is inversely proportional to the thickness of the dielectric.
Capacitors are one of the most critical passive components for achieving a wide range of voltage and current combinations in power supplies. Although each type of capacitor can store electrical energy
For certain applications, dielectric technology plays an important role in the selection of electrolytic capacitor.
The most important applications of capacitors in power supply in Guoju agents are in energy storage, surge voltage protection, EMI suppression, and control circuits. For different applications
These dielectric technologies compete or complement each other in the field of application.
Key points for selection of Aluminium electrolytic capacitor:
Capacity, withstand voltage, temperature range, component packaging form and size
Ripple current, ripple voltage
Leakage current, ESR, dissipation factor, impedance/frequency characteristic series
Capacitor life
Comprehensive consideration of actual needs, performance, and cost
The electronic component technology network of Guoju's first level agent has raised concerns about voltage resistance, capacity, and the problems encountered by engineers in the selection and application of aluminum electrolysis through investigation
The stability of Aluminium electrolytic capacitor to the whole circuit should also be noted。