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China's domestic chip companies MediaTek are the first one to release the world's most advanced #4nm

Apple's A16 processor is the first chip with a 4nm process, but MediaTek's Dimensity 9200 uses TSMC's more advanced second-generation 4nm process. Therefore, MediaTek can be said to be the first to adopt the world's most advanced 4nm chip manufacturer. It is also the strongest technology in the mobile phone chip industry.

According to the data released by MediaTek, benefiting from the excellence of the second-generation 4nm process, the performance of the Dimensity 9200 chip has increased by 12%, and the power consumption has dropped by 25%. The first place in the industry highlights the technical advantages of the Dimensity 9200 chip.

 #Topdiode #UF_capacitors #China_manufacturer #Electronic_components_supplier #Capacitors #diode #TVS_diode #MOSFET 

Parts especially designed for smart meters

Check out following parts which is especially designed for smart meters. 
for both single phase and 3 phase smart meter with lead time around 4-5 weeks 
 #Smart_Meters #electronics_components #China_manufacturer #Topdiode_Group #UF_Capacitors #cost_down #Fast_delivery.

Why are tantalum capacitors required to derate the voltage?

The suitable operating conditions of tantalum capacitors are -55-+125 degrees, and the rated voltage can be applied within 85 degrees for testing. It is said that such conditions have shown that the temperature characteristics of tantalum capacitors are very good, but one thing is often overlooked, that is, under this condition, the test is carried out with a protective resistance of 1000 ohms. At the moment when the product is energized, the voltage and current in the circuit have very small surge changes, and the excessive instantaneous current is suppressed by the series resistance. Therefore, the change has an impact on the tantalum capacitor.

In actual use, tantalum capacitors are often used in power circuits without any resistance protection for filtering or charging and discharging. If such circuits use an external power supply, at the moment of switching, the circuit will generate a very high voltage. Surge voltage and current changes, therefore, when used in such circuits, tantalum capacitors will be subjected to voltage and large current surges exceeding the rated value at the moment of switching and breakdown. Therefore, tantalum capacitors used in such circuits , After a lot of experiments, it has been proved that if you want to ensure its sufficient reliability, it must be greatly derated to ensure that the sum of the surge voltage and reverse voltage instantly applied to the product cannot exceed the rated value. Tantalum capacitors in impedance circuits are therefore required to be derated to 1/3 of the rated value to ensure reliability.

Such requirements have brought a lot of inconvenience to actual users; on the one hand, many users do not know such harsh conditions of use of tantalum capacitors in such circuits, so the use voltage is too high, which often causes breakdown, and on the other hand, On the one hand, users cannot achieve chip products with higher withstand voltage capabilities under the condition that the volume and capacitance are strictly limited.

The reason for such harsh conditions in the specific use of tantalum capacitors is actually a dangerous failure mode of tantalum capacitors; when the leakage current of tantalum capacitors is too large, the withstand voltage of the product will decrease rapidly, followed by breakdown. It can cause the rapid collapse of the dielectric layer and the phenomenon of burning or explosion in an instant. This defect causes the tantalum capacitor to be very fragile in circuits with large surge currents; the surge resistance is the highest among all capacitors.