• 1
  • 2
  • 3
  • 4

Car amplifiers

Car amplifiers are electronic devices that increase the power of the car audio system signals that pass through it. 
Car amplifiers manufacturer will use some audio ICs, IGBT, Mosfet and Diodes as following:



- Mosfet IRLML2244TRPbF
- Mosfet IRLML9303TRPBF

Topdiode Manufacturer provide solution for car amplifiers and audio cross over circuit.

Topdiode offer these components to audio components market, amplifiers and cross over manufacturers.

Topdiode Audio IC7012  replace IR_INFINEON [IRS2092STRPBF 
Topdiode Audio IC NSA2092 SOIC16 replace IR_INFINEON [IRS2092STRPBF

SMD electrolytic capacitors provide small size solution for car amplifiers circuit.
Premium metallized polypropylene film capacitors, audio capacitors are excellent capacitors for cross over circuit.

Supplier performance card - 100% on time delivery & ZERO failures.

Topdiode once again has received the “supplier performance report” 
of 100% on time delivery & ZERO failures from one of our EU customers.

Panasonic stops supplying #EEHZC1J470V

Have you heard? Panasonic stops supplying #EEH-ZC1J470V

UF capacitos has equivalent, 4 weeks delivery, cost down around 50~300%.  

many series like, long life to 20000H, High temp 125C. low ESR, etc.                                   

UF capacitors. an 28+ ISO mfg in China,  
Committed to cost down with equivalent to replace 1st tier brands like Panasonic, Nichicon, in non-auto field.

Quality is recognized by GE, PNE, Jabil, Bosch etc. Thank you
#Electronic_Component #UF_Capacitors #SMD_ECAP #Cost_down

Happy New Year 2023

Dear valued customers and partners,

Happy New Year 2023 !! 
With 2022 coming to a close, we wanted to reach out and send our best wishes.
Thank you for your support. wish you and your family a happy, healthy, and prosperous New Year of Rabbit.

#China_supplier #Electronic_components #Diode #MOSFET #cost_down #High quality.

#China_supplier #Electronic_components #Diode #MOSFET #cost_down #High quality.

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.

Updated UF capacitors catalogue

Dear customers and partners,

We are upgrading our catalogue (UF capacitors).

Softy copy is available right now & hard copies will be available end of this Month.

We will start sharing you with updated catalogs soon.  Thank you for attention.

 #UFcapacitors #catalogue #Chip_MLCC #Tantalum_cap #SMDECAP #Film_Cap #Safety_cap #China_Supplier #Cost_down

What are Cathode and Anode?

What are Cathode and Anode?

Let us understand what cathode and anode exactly mean. They are both defined by the flow of current. Therefore, a cathode is an electrode from which the current exits a polarized electrical device.
Likewise, an anode is an electrode from which a current enters into a polarized electrical device.

The terms were finalized in 1834 by William Whewell who adapted the words from the Greek word (kathodos), ‘descent’ or ‘way down’. William had consulted with Michael Faraday for the coining of the terms.


When we talk about cathode in chemistry, it is said to be the electrode where reduction occurs. This is common in an electrochemical cell. Here, the cathode is negative as the electrical energy that is supplied to the cell results in the decomposition of chemical compounds. However, it can also be positive as in the case of a galvanic cell where a chemical reaction leads to the generation of electrical energy.

In addition, a cathode is said to be either a hot cathode or a cold cathode. A cathode which is heated in the presence of a filament to emit electrons by thermionic emission is known as a hot cathode whereas cold cathodes are not heated by any filament. A cathode is usually flagged as “cold” if it emits more electrons compared to the ones generated by thermionic emission alone.


In the most basic form, an anode in electrochemistry is the point where an oxidation reaction occurs. Generally, at an anode, negative ions or anions due to its electrical potential tend to react and give off electrons. These electrons then move up and into the driving circuit.

If we take a galvanic cell, the anode is negative in nature and the electrons mostly move towards the external part of the circuit. In an electrolytic cell, it is again positive. Additionally, an anode can be a plate or wire having an excess positive charge.

Difference Between Anode And Cathode

Here are some key differences between cathode and anode.



The   anode is the electrode where electricity moves into.

The   cathode is the electrode where electricity is given out or flows out.

The   anode is usually the positive side.

A   cathode is a negative side.

It   acts as an electron donor.

It   acts as an electron acceptor.

In   an electrolytic cell, oxidation reaction takes place at the anode.

In   an electrolytic cell, a reduction reaction takes place at the   cathode.

In   galvanic cells, an anode can become a cathode.

In   galvanic cells, a cathode can become an anode.