WEET Diodes and Rectifiers Factory In China 2024 National Day Holiday Notice

Dear Customers,
We are glad to inform you the 2024 marks the 75th anniversary of China National Day, which is also the 75th anniversary of the founding of the People's Republic of China.
Our factory is running into the peak season from Sept to Dec,2024. 

We sincerely suggest you plan your order in advance, we will try our best to provide the fastest lead time to meet your schedule. Thank you. 

2024 National Day Holiday Notice 

Holiday From 1st Oct, to 7th Oct, Resume Work On 8th Oct, 2024 

Best regards,
WEE Technology Company Limited

2024-09-20


WEET Precautions for WTP 3386 0.5W 9mm Square Trimming Potentiometer

WEE Technology Company Limited - Manufacturer For Full Range of Resistors

Precautions for using WEET potentiometers: 

 (1) In order to prevent the pin contacts and conductive layer of the WEET potentiometer from deteriorating or burning out, the working current of the potentiometer should not exceed the rated current. 

To avoid potential damage to the potentiometer. 

 (2) If the WEET potentiometer is used for a long time, there may be some loud noise or inflexible shaft adjustment. 

In this case, there may be a lack of specialized lubricating oil inside the potentiometer. 

By adding appropriate lubricating oil, the two types of faults can be solved. 

 (3) Do not tap or shake the WEET potentiometer during installation. Because the interior of the potentiometer is composed of various components, 

it is possible that these components may fall off due to violent shaking or vibration. So, more precautions are needed for this.

https://www.resistorsfactory.com/Datasheet/WEET-WTP-3386-0.5W-9mm-Square-Trimming-Potentiometer.pdf

WEET WTP 3361 0.5W 6mm Square SMD Trimming Potentiometer Miniature Package

WEE Technology Company Limited - Manufacturer For Full Range of Resistors


Standard Resistance Range10Ω - 5MΩ
Resistance Tolerance±10% (100Ω~1M), ±20% (R<100Ω, >1M)
Terminal Resistance≤±1%R or 2Ω (whichever is greater)
Contact Resistance Variation(CRV) ≤±1%R or 3Ω, (whichever is greater)
Insulation Resistance≥1GΩ (100V AC)
Withstand Voltage640V AC
Adjustment Angle240°



https://www.resistorsfactory.com/Variable-Resistors-Potentiometer/WEET-WTP-3361-6mm-Square-SMD-Trimming-Potentiometer.html

https://www.resistorsfactory.com/Datasheet/WEET-WTP-3361-0.5W-6mm-Square-SMD-Trimming-Potentiometer.pdf


WEET WTP 3329 0.5W 6mm Round Trimming Potentiometer 4 Terminal Styles

WEE Technology Company Limited - Manufacturer For Full Range of Resistors

The working principle of the 3296 potentiometer is based on its internal structure and electrical characteristics. 

It is a variable resistor, usually composed of a resistor body and a movable brush. The resistor body has two fixed ends, and the position of the moving contact point on the resistor body can be changed by manually adjusting the shaft or sliding handle. In this way, the resistance value between the moving contact and any fixed end will change, thereby adjusting the voltage and current in the circuit. twelve The 3296 potentiometer is a pre adjusted potentiometer driven by a screw, with the characteristic of multiple rotations. The full stroke is greater than or equal to 15 rotations, and the maximum resistance of the resistor body is only 300 °. 

By rotating the screw, the position of the contact point on the resistor can be adjusted, thereby changing the resistance value of the potentiometer. After adjusting to the maximum or minimum resistance value, the contact will not move with further rotation of the screw, which provides protection. 

 Potentiometers have a wide range of applications, as they can be used to adjust voltage (including DC voltage and signal voltage) and current, and are also commonly used as voltage dividers. In electronic circuits, the 3296 potentiometer is particularly suitable for situations that require high precision, such as audio amplifiers, temperature controllers, light brightness regulators, etc

https://www.resistorsfactory.com/Variable-Resistors-Potentiometer/WEET-WTP-3329-6mm-Round-Trimming-Potentiometer.html

https://www.resistorsfactory.com/Datasheet/WEET-WTP-3329-0.5W-6mm-Round-Trimming-Potentiometer.pdf



WEET WTP 3323 0.25W 6mm Square Trimming Potentiometer 7 Terminal Styles

WEE Technology Company Limited - Manufacturer For Full Range of Resistors

How to distinguish the three pins of a potentiometer
The three pins of a potentiometer typically include the middle pin (wiper), top pin (top), and bottom pin (bottom). 

The middle foot serves as a voltage divider, while the top and bottom feet define the resistance range that changes when the knob is turned. The method to distinguish the three pins of a potentiometer is as follows: 12 Observe the appearance. The appearance of a potentiometer usually has a mark indicating the position of the middle pin, and the positions of the left and right pins can also be distinguished by size and shape. Generally, the left pin is slightly larger than the right pin and is further away from the middle pin. 

Use a multimeter for testing. Using a multimeter can further confirm the function of the pins. Firstly, connect the multimeter probes to any two pins of the potentiometer, adjust the potentiometer handle, and observe whether the resistance changes; Then, replace one of the probes with the connected pin, adjust the potentiometer handle again, and observe whether the resistance value changes. Comparing the resistance values of two measurements, when the resistance value in one measurement does not change, it indicates that the pin connected to the red and black probes of the multimeter is a fixed pin, and the other pin is a moving pin. Through these methods, the three pins of the potentiometer can be effectively distinguished.

https://www.resistorsfactory.com/Variable-Resistors-Potentiometer/WEET-WTP-3323-6mm-Square-Trimming-Potentiometer.html

https://www.resistorsfactory.com/Datasheet/WEET-WTP-3323-0.25W-6mm-Square-Trimming-Potentiometer.pdf

WEET 6.3V 1500uF Low ESR SMD Polymer Aluminum Conductive Solid Electrolytic Capacitors Cross Vishay

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

https://www.weetcap.com/Aluminum-Electrolytic-Capacitors/WEET-WPB-Super-Low-ESR-Radial-Polymer-Aluminum-Solid-Electrolytic-Capacitors.html

WEET How to Distinguish Solid Polymer Electrolytic Capacitors and Liquid Electrolytic Capacitors

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.

WEET Shares Advantages of Solid Polymer Electrolytic Capacitor Over Liquid Electrolytic Capacitors

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.

WEET WPA SMD Miniaturized Conductive Polymer Aluminum Solid Electrolytic Capacitors Advantages

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.