Kingtronics Blog

In the use of chip MLCC, many customers will encounter capacitor cracking, short circuit, burning and other phenomena, so how to deal with these phenomena?
First of all, we need to know the causes of these phenomena.

A. Crack (refers to the crack on the capacitor that causes the product to fail to work normally). This phenomenon is generally caused by low resistance.
The reasons are as follows.

1. PCB is mostly open circuit after external force.
2. If the non-capacitor body is impacted by external force, it may have short circuit or low resistance.
3. Too high applied stress voltage will lead to MLCC capacitor failure, generally short circuit or low resistance, but this kind of phenomenon should not be much in the case of sufficient allowance.

In this case, it is generally necessary to check whether the product will be vibrated or shaken when working, and then check whether the product capacity meets the requirements.
B. Short circuit burn out (refers to the damage of the capacitor in the PCB board, resulting in the failure of the product to continue to work).

The reasons for this phenomenon are as follows.
1. The model of capacitor package is not big enough;
2. Insufficient reserved allowance;
3. The voltage withstand is too low or the product current is too high.

If this happens, we need to replace the chip capacitor model and check the specific reason. Then choose to replace the chip capacitor capacity or model.
If you can't find a suitable model to replace, you can use the capacitors in parallel or series to solve the problem.

Kingtronics can support you with qualified chip MLCC.
Welcome to share us your demand !

Kingtronics’ Polymer Aluminum Electrolytic Capacitors have the characteristics of low ESR, low impedance, and large permissible ripple current.

Besides, the temperature characteristics are also very stable, and it has excellent performance in terms of blog absorption, smoothness, and transient response.

Below is our product line for Polymer E-cap, welcome check our best offer for you. 😊

Super capacitor is an electrochemical capacitor with the ability to store more energy than conventional capacitors. Super capacitors can charge and provide energy faster than batteries. The increasing application of instantaneous standby power supply promotes the demand for super capacitor.

The remarkable advantage of super capacitor is that it can cycle thousands of times before aging, while the battery can only cycle hundreds of times.
The latest development of super capacitor has introduced lithium-ion hybrid capacitors which can be charged to high voltage (up to 4V), which has less self-discharge and high energy density. The disadvantage of these super capacitors is that they cannot discharge to less than 2.2V, otherwise they will be damaged.

The composition of super capacitors makes their self-discharge rate significantly higher than that of battery. The higher the working temperature of super capacitor, the higher the charging voltage, the faster the aging; The capacitance of super capacitor will decrease and the equivalent series resistance (ESR) will increase. This means that the super capacitor can provide less energy for the application. ESR of capacitor increases power loss of the system.

The temperature is only 10% higher, the life of the super capacitor can be reduced by half. In addition, it is usually used to charge the super capacitor to a voltage below the nominal voltage to increase its life.

Since the maximum voltage of the super capacitor charging is between 2.7V and 3V, it is necessary to connect several super capacitors in series for most applications. Therefore, the super capacitor must be balanced; Otherwise, one unit may charge more than another, leading to the aging of unequal capacitors, reducing the capacity of capacitor banks to provide the energy required for application.

The methods used to balance the super capacitor include: passive balance of resistor string, switch resistor, zener diode and active balance. The first three methods can cause power loss in resistors, and the fourth is the most effective but also the most expensive.

When super capacitors are used for standby power applications, their capacitors and ESRs must be monitored to ensure that the minimum energy required for the application can be provided.

Super Capacitor applications: RAM; Detonator; car recorder; smart meter; Vacuum switch; digital camera; motor drive; clock circuit; UPS; toy; program-controlled switch; etc.

#Supercap #Ultracap #Double Layer Capacitors

Feature:
Lead-free environmental protection
High current discharge
Supports 1 million cycles of use
Low leakage current, standard energy type
RoHS compliant
Ultra-low leakage current
Suitable for use with batteries

Common application:
It is widely used in the field of water, electricity, and gas and communication products. Battery + EDLC (as power assist), used for water meter, gas meter (as motor driven), wireless equipment (as power assist), pulse power application, industrial equipment (high current discharge)

DKT-DY:http://www.kingtronics.com/pdf/DKT-DY-5V-7.5V-Combined-Type-Super-Capacitor.pdf

Tactile switches have a small footprint and come in many sizes and gram forces, can be used in many consumers electronic devices.
Under the current difficult situation of raw material supply for the whole electronic components industry, our price & L/T support is still very competitive.

Below are some our hot sell products of Tactile switches, welcome your inquiry to check our best offer for you.

E-catalog: https://www.kingtronics.com/pdf/Kingtronics-DIP-and-SMD-Tactile-(Tact)-Switches-Leaflet.pdf

Alternative Replacement for Mouse or AVX Super Capacitors/Ultra Capacitors.

Excellent characteristic: Low internal resistance, standard power type

Office equipment can often be seen application like: Tax Controller, Barcode Scanner, Handy terminal, GPS. Digital camera, container tracking system

Kingtronics partner with authorized distributors from Europe, North America, Asia and to provide premium customer local service including business visits, flexible payment terms, and stock buffering.

#electrochemical capacitors # gold capacitors #farad capacitors

Kingtronics 5.5V-7.5V Combined Type Ultra-Capacitor – DKT-DM:http://www.kingtronics.com/pdf/DKT-DM-5.5V-7.5-Combined-Type-Super-Capacitors.pdf

Kingtronics Screw & Lug type E-cap is designed for industrial equipment control, computer, communication powers Hi-ripple circuit of electric vehicle, and inverter, etc.
Both types are available in the range of <1 μF to several farads with working voltages up to several hundred volts DC.

Below is the feature table , we can also customize the request! welcome share your inquiry with us to check the best offer for you.

Trimming Potentiometers is one of the Kingtronics hot product since 1990.

Kingtronics offers many types of trimming potentiometers and following are some of our popular series with cross reference.
For other product series, you may check our product page from following link.
https://www.kingtronics.com/trimming-potentiometers/index.html

Trimmer Ceramic capacitor is increasingly scarce in the market because of limited material supplies and rising demand.
Many customers are sharing order for their 2022 production schedule.

If you need them for your production in early 2022, it may be the right time to share your order now.

Applications:
Remote Keyless Entry System, Measuring Instrument
Car Alarm Remote Controller, Car Audio, Traffic Card Reader
Security System, Wireless Microphone
Cordless Phone, Wireless Repeater
Two-Way Radio Communication (FRS, GMRS, LMR)
TCXO, VCXO,RF Module, RFID,DVD

Famous brand of switch like Digi-Key, Avnet, RS Components, Galco, Sager Electronics,Kingtronics, they are with nice rebound effect. Tact switches are designed with a small footprint suited for mounting onto the surface of printed circuit boards (PCB).

How does a tactile switch work? They are on/off electronic switches that are turn on only when a certain amount of pressure is applied. The circuit is broken when tactile switch button is released and the pressure has been taken off.