WEE Technology Company Limited - WEE are Capacitors Specialist
Capacitance is the key to ensure the quality of the motherboard and graphics card, and it can also be said to be the key to measure the board workmanship. Whether it's the popular solid state capacitor or the electrolytic capacitor that is scolded by many netizens, their functions are the same. The role of the capacitor in the motherboard and graphics card is mainly to ensure the stability of the voltage and current (playing a filtering role). The main function of the capacitor is to further filter some current spikes and clutter, so as to ensure the stability of the power supply of each part. The role of capacitance is similar to that of a reservoir. It will discharge water when the water flow is large, and store water when the water flow is small, so as to ensure the balance of storage capacity in the reservoir.
Low ESR SMD Polymer Aluminum Conductive Solid Electrolytic Capacitors Advantages:
Advantages of using solid state capacitor: explosion-proof slurry
Advantages of using solid state capacitor: long life and good stability
Advantages of using solid state capacitor: small equivalent series resistance
Advantages of using solid state capacitor: solid state capacitor is much better than liquid aluminum capacitor
Advantages of using solid-state capacitors: large capacity
WEE Technology Company Limited - WEE are Capacitors Specialist
The intuitive way to distinguish WEET solid electrolytic capacitor and WEET liquid electrolytic capacitor is to check whether there is a "K" or "cross" shaped explosion-proof groove on the top of the capacitor. The top of the solid electrolytic capacitor is flat without explosion-proof groove. There is also a solid and liquid mixed type electrolytic capacitor, the explosion-proof groove on the top of which is shallow. In addition, liquid electrolytic capacitors generally have plastic skins of various colors. There are two packaging forms for electrolytic capacitor.
It is a common in-line package, which is cylindrical in shape, with two metal leads below as electrodes, installed vertically on the circuit board. Another way is to install the vertical main board with rubber base. This SMT chip type capacitor is easy to use in large-scale, high-density production, and can achieve efficient and fast welding, while occupying a small area on the main board. The main basis for distinguishing SMT chip type and direct plug-in capacitor is the plastic base at the lower end of the capacitor.
WEE Technology Company Limited - WEE are Capacitors Specialist
Solid aluminum polymer chip capacitor is a unique structure which combines the characteristics of aluminum electrolytic capacitor and tantalum capacitor. Like the electrolytic capacitor of liquid aluminum, the solid aluminum polymer is mostly in the form of chip. The polymer electrode film with high conductivity is deposited on alumina as cathode, and carbon and silver as lead out electrodes, which is similar to the structure of solid tantalum electrolytic capacitor.
Due to the use of a new type of solid electrolyte, solid-state electrolytic capacitors have excellent characteristics that cannot be matched by liquid electrolytic capacitors. These electrical properties are very important for improving the application of high frequency in computer system. The advantages of solid electrolytic capacitor over liquid electrolytic capacitor are mainly three points.
1. WEET Solid aluminum electrolytic capacitor has High stability than liquid electrolytic capacitors.
Solid aluminum electrolytic capacitor can work stably in high temperature environment, and the performance of main board can be improved directly by using solid aluminum electrolytic capacitor. At the same time, it is suitable for power filter because of its stable impedance in wide temperature range. It can effectively provide stable and abundant power supply, which is particularly important in overclocking.
Solid state capacitors can still work normally in high temperature environment, and maintain various electrical properties. The change of capacitance is less than 15% in the whole temperature range, which is obviously better than the liquid electrolytic capacitance. At the same time, the capacitance of solid-state electrolytic capacitor is basically independent of its working voltage, so as to ensure its stable operation in the voltage fluctuation environment.
2. WEET Solid aluminum electrolytic capacitor has longer life than liquid electrolytic capacitors.
The solid aluminum electrolytic capacitor has a very long service life (more than 50 years). Compared with the electrolytic capacitance of liquid aluminum, it can be regarded as "longevity". It will not be broken down, and there is no need to worry about the drying of the liquid electrolyte and leakage affecting the stability of the motherboard. Due to the lack of problems of liquid electrolyte, the solid aluminum electrolytic capacitor makes the main board more stable and reliable.
The solid electrolyte will not evaporate, expand or even burn like the liquid electrolyte in the high temperature environment. Even if the temperature of the capacitor exceeds its tolerance limit, the solid electrolyte will only melt, so that the metal shell of the capacitor will not burst, so it is very safe.
The working temperature directly affects the life of the electrolytic capacitor. The life of solid electrolytic capacitor and liquid electrolytic capacitor is significantly longer under different temperature environment.
3. WEET Solid Polymer aluminum electrolytic capacitor has lower ESR and high rated ripple current than than liquid electrolytic capacitors.
ESR (equivalent series resistance) refers to the series equivalent resistance, which is a very important indicator of capacitance. The lower ESR is, the faster the capacitor charging and discharging speed is. This performance directly affects the decoupling performance of the microprocessor power supply circuit. In the high-frequency circuit, the advantage of the low ESR characteristic of the solid-state electrolytic capacitor is more obvious. It can be said that the low ESR characteristic at high frequency is the watershed of the difference between the performance of solid electrolytic capacitor and that of liquid capacitor. The ESR of solid aluminum electrolytic capacitor is very low, and the energy dissipation is very small. Under high temperature, high frequency and high power conditions, the very low ESR characteristics of the solid-state capacitor can fully absorb the high amplitude voltage generated between the power lines in the circuit and prevent its interference to the system.
At present, the power consumption of CPU is very large, and the main frequency is far beyond 1GHz. At the same time, the peak current of CPU reaches 80A or more, and the output filter capacitance is close to the critical point. On the other hand, the CPU adopts multiple working modes, most of which are in the conversion process of working mode. When the CPU changes from low power consumption state to full load state, a large amount of energy required for instantaneous (generally less than 5 ms) switching of the CPU is from the capacitance in the CPU power supply circuit. At this time, the high-speed charging and discharging characteristics of the solid-state capacitance can output peak current in an instant to ensure sufficient power supply and stable operation of the CPU.
WEET WPA WPB SMD Radial Surface Mount and Radial Lead Polymer Aluminum Solid Electrolytic Capacitors
WEE Technology Company Limited - WEE are Capacitors Specialist
WEET WPA WPB SMD Radial Surface Mount and Radial Lead Polymer Aluminum Solid Electrolytic Capacitors
Composition and structure of aluminum electrolytic capacitor:
A. Anode foil: (aluminum metal foil) as anode, through corrosion and activation, forming oxide film as working medium; anode foil ≥ 99.97%
B. Anode foil: it plays the role of cathode extraction and is corrosion foil; cathode foil ≥ 97%
C. Electrolyte: it is the actual cathode, which can repair the oxide film;
D. Electrolytic paper: store electrolyte, insulate cathode and anode foil, and increase internal pressure;
F. Lead out strip (guide pin): it is used for connection and lead out, and the anode lead out strip needs to pass over 600V enabling;
G. Cover plate (leather head): for sealing and installation;
H. Aluminum shell: protect the core and play a fixed role;
1. Aluminum washer : it is used to connect the lead out strip and cover plate;
J. Sleeve and insulating gasket: play the role of insulation and make the appearance beautiful and tidy.
WEE Technology Company Limited - WEE are Capacitors Specialist
WEET WPA SMD Miniaturized Conductive Polymer Aluminum Solid Electrolytic Capacitors Features:
Low ESR Series, SMD Surface Mounted Type
High Ripple Current, miniaturized
SMD, lead free reflow soldering condition at 250℃ peak correspondence
Temperature Range (℃):-55°C~ +105°C
Rated Voltage Range (V): 2.5V ~ 100V.DC
Capacitance Tolerance (+20℃, 120Hz): ±20%, special tolerance on request.
WEET WPA SMD Miniaturized Conductive Polymer Aluminum Solid Electrolytic Capacitors Applications:
It is suitable for low voltage and high current applications, mainly used in digital products such as thin DVD, projector and industrial computer, etc., and also widely used in computer board products in recent years.
Also applicable to DC/DC converters and AC/DC converters, communication power supply, set-top boxes, router, TV, voltage regulator, mobile phone adapter (mobile phone charger), computer motherboard, graphics card, power supplies, CPU’s, Decoupling circuits and LCD Monitors and other commercial divices.
WEET WPA SMD Miniaturized Conductive Polymer Aluminum Solid Electrolytic Capacitors Advantages:
As the solid-state capacitor uses conductive polymer product as the dielectric material, the material will not interact with alumina and will not explode after being electrified; at the same time, it is a solid-state product, so there will be no burst due to thermal expansion. Solid Polymer capacitor has the advantages of environmental protection, low impedance, high and low temperature stability, high ripple resistance and high reliability. It is the highest level product in the current electrolytic capacitor products. As the solid-state capacitor e is far superior to the liquid aluminum capacitor, and the solid-state capacitor has a temperature resistance of 260 degrees, good conductivity, frequency characteristics and service life.
WEE Technology Company Limited - WEE are Capacitors Specialist
WEET Conductive Polymer Aluminum Solid Electrolytic Capacitors with Chip SMD type and Radial Lead type. Due to different characteristics, Polymer Aluminum Solid Electrolytic Capacitors can be divided to Standard, Ultra-low ESR, Higher Capacitance, Long Life Assurance, High Voltage/Long Life Assurance, High Voltage/High Reliability series. Aluminum polymer electrolytic capacitors are the latest evolutionary step in improving the properties of aluminum electrolytic capacitors to make them more like a film capacitor.
Surface mount SMD type and Radial lead Polymer capacitors are produced in a similar production process to standard aluminum electrolytic capacitors(E-Cap). The main difference is the liquid electrolyte being replaced by a solid conductive polymer, usually soild conductive polymer is more stable in most applicatinos.
WEET Conductive Polymer Aluminum Solid Electrolytic Capacitors are widely used in various applications, which applicable to DC/DC converters and AC/DC converters, communication power supply, set-top boxes, router, TV, voltage regulator, mobile phone adapter (mobile phone charger), computer motherboard, graphics card, power supplies, CPU’s, Decoupling circuits and LCD Monitors.
WEET aluminum solid capacitor with high conductive polymer, which acquires low Equivalent Series Resistance (ESR), excellent noise reduction capability and frequency characteristics.
WEET How to Understand the Meaning of the WEET Polymer Aluminum Solid Electrolytic Capacitor Marking
WEE Technology Company Limited - WEE are Capacitors Specialist
What are the parameters of WEET Polymer Aluminum Solid Electrolytic Capacitors? How to understand the meaning of the WEET Polymer Aluminum Solid Electrolytic Capacitors marking?
For example, the solid-Polymer capacitor shwoing as WPA470603, which represents the capacity of 470uF, and 6.3V represents the withstand voltage of 6.3V. This kind of electrolytic capacitance has positive and negative polarity. Generally, it will be marked with "-" (negative pole) on the package surface, or it can be distinguished by color band.
The structure of solid-state capacitor is basically the same as that of ordinary electrolytic capacitor(SMD Ecap), except that the original liquid part is replaced by the current solid part. In terms of installation form, it is no different from the original aluminum electrolytic capacitor, so customers do not need to change the circuit board structure, and directly replace it with solid capacitance according to the design needs. The stability of solid capacitor is much higher than that of common electrolytic capacitor.
WEE Technology Company Limited - WEE are Capacitors Specialist
WEET WPB 2000H at 105°C Super Low ESR Radial Polymer Aluminum Solid Electrolytic Capacitors Specifications
| Operating Temperature | -55°C~ +105°C |
| Voltage Range | 2.5V ~ 25V.DC |
| Capacitance Range | 68 ~ 2200μF |
| Capacitance Tolerance | ±20% at 120Hz, 20°C |
| Leakage Current(+20℃, max) | ≤0.2CV (μA, after 2 minutes) |
WEE Technology solid aluminum electrolytic capacitor can work stably in high temperature environment, and the performance of main board can be improved directly by using solid aluminum electrolytic capacitor. At the same time, it is suitable for power filter because of its stable impedance in wide temperature range. It can effectively provide stable and abundant power supply, which is particularly important in overclocking.
Solid state capacitors can still work normally in high temperature environment, and maintain various electrical properties. The change of capacitance is less than 15% in the whole temperature range, which is obviously better than the liquid electrolytic capacitance. At the same time, the capacitance of solid-state electrolytic capacitor is basically independent of its working voltage, so as to ensure its stable operation in the voltage fluctuation environment.
The solid electrolyte will not evaporate, expand or even burn like the liquid electrolyte in the high temperature environment. Even if the temperature of the capacitor exceeds its tolerance limit, the solid electrolyte will only melt, so that the metal shell of the capacitor will not burst, so it is very safe.
The working temperature directly affects the life of the electrolytic capacitor. The life of WEET solid electrolytic capacitor and liquid electrolytic capacitor is significantly longer under different temperature environment.
WEE Technology Company Limited - WEE are Capacitors Specialist
WEET WPA SMD Polymer Aluminum Solid Electrolytic Capacitors (Surface Mount Type) High reliability, long life, low impedance and high ripple current of the top-class in AL-Electrolytic,are ideally suited for industrial and commercial applications.
WEET Conductive polymer aluminum solid electrolytic capacitors V chip type Features:
Switching Power Supply and DC/DC Converter.
Back up Power Supplies of CPU(VRM etc.)
Miniature high Power Supply
Ultra Low ESR, Low ESL, Large Capacitance, RoHS Compliance Lead-free
WEET Polymer Aluminum Solid Electrolytic Capacitors are widely used in various applications, which applicable to DC/DC converters and AC/DC converters, communication power supply, set-top boxes, router, TV, voltage regulator, mobile phone adapter (mobile phone charger), computer motherboard, graphics card, power supplies, CPU’s, Decoupling circuits and LCD Monitors.
WEE Technology Company Limited - WEE are Capacitors Specialist
WEET WPB Radial Polymer Aluminum Solid Electrolytic Capacitors Cross Reference to Mouser Fujicon KEMET
The A75x and A76x series of single-ended and surface mount conductive polymer aluminum solid electrolytic capacitors offer longer life and greater stability across a wide range of temperatures.
Radial Solid Polymer Aluminum Capacitors A755 105°C
https://content.kemet.com/datasheets/KEM_A4072_A759.pdf
Applications:
Typical applications include long life LED drivers,professional power amplifiers, industrial power supplies,DC/DC converters, voltage regulators, and decoupling.
Chemi-con CONDUCTIVE POLYMER ALUMINUM SOLID CAPACITORS NPCAP-PSC Series
・Super low ESR, high ripple current capability
・Rated voltage range : 2.5 to 16Vdc
・Nominal capacitance range : 270 to 2,700µF
・Endurance : 15,000 hours at 105℃
・Suitable for DC-DC converters, voltage regulators and decoupling applications for computer motherboards
・Added 2.5V 820µF (ESR 5mΩ max.)
・RoHS2 Compliant, Halogen Free
Rubycon CONDUCTIVE POLYMER ALUMINUM SOLID ELECTROLYTIC CAPACITORS
Radial Lead Type PZE 105℃, Radial Lead Type PZF 125℃
http://www.rubycon.co.jp/catalog/j_pdfs/jp_SERIES-CHART.pdf