Kingtronics Blog

Most suppliers from China is postponing production schedule after CNY holiday this year.
Are you facing to the longer lead time problem?

We have stock offer in HK for below SMD 3mm Chip Ceramic Trimmer Capacitor which can cross Murata PN to help you get fast delivery.

Thankfulness & Blessings to all our valued customers in Warm holiday season

Christmas is coming, wish you have a warm & joyful time with all your love ones.

Pls note Kingtronics will be closed on 25th-26th Dec., and 1st Jan., 2020.

Many thanks for all our valued customers support toward us in 2019.

We look forward to the prosperous year 2020, and wish your company the success that it deserves.

Merry Christmas & Happy New Year !

Thank you all adorable visitors coming to our booth in 2019 electronicAsia HK, Kingtronics sales team had a nice time discuss with you. *^-^*

At the Fair, many customers inquired our Aluminum Electrolytic Capacitors, they are very satisfied with our lead time and offers. do you also have inquiry on hand ?

Following are our product data, welcome share your inquiry with us for best quotation.

Zener Diodes is general usage and suitable for many different applications like: Industrial, Power Management, Consumer Electronics, Portable Devices, and Automotive.

Murata Announces Plans To Discontinue Crystal 3.2 x 2.5mm and 2.5×2.0mm Lines in 2019.

No stress, we are prepared to support alternative solutions with competitive pricing, short L/T, fine quality, timely response…

Contact us for replenishing the stock. http://www.kingtronics.com/quartz-crystals/

Historically, Tantalum capacitors have been used for smoothing and decoupling applications for switching power supplies, DC/DC converters, LCD drivers and general digital circuits. As the need grew for efficient power converters that operate at high frequencies, the design engineer needed components that dissipated less heat. For high frequency applications‚ chip capacitor is an excellent substitute for a Tantalum capacitor. Compared to a Tantalum capacitor‚ chip capacitor has a low ESR and low ESL at high frequencies. As a result, selecting a Tanceram‚ capacitor with 1/2 to 1/10th the capacitance of a Tantalum will produce an impedance that is more than an order of magnitude lower than the Tantalum capacitor over the same high frequency range. The following example will compare the performance.

From 100 KHz to 70 MHz the typical 4.7µF, chip capacitor has a measured ESR from .05 to .02 Ohms while a typical 10µF Tantalum capacitor ESR measures from 1.2 to 0.8 Ohms. In this example‚ chip capacitor has a typical ESR that is 4% of the value of a comparable Tantalum capacitor over the frequency range of 100 KHz to 70 MHz. (See Figure 1.)

A typical 4.7uF Tanceram‚ chip capacitor has low impedance from 100 KHz to 70 MHz. From Figure 2 the self-resonant frequency is approximately 3 MHz, for a remarkably low ESL of 600pH! Also, the lower impedance produces less heat in power conversion applications. Figure 3 shows the temperature rise vs. ripple current. From the example capacitor values‚ chip capacitor can handle approximately 3 times the ripple current to produce a comparable temperature rise.

Often, substituting a Tanceram‚ chip capacitor to replace a Tantalum capacitor will reduce the circuit size and cost while providing superior performance.