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In recent years, the market sales have been developing toward practicality. The general common-mode inductors have long been unable to meet the requirements of the sales market, so it is necessary to develop a new inductor product that can meet the requirements of customers. Therefore, the vertical common-mode Inductors are thus put on the market.
So what are the advantages of common mode inductors?
General inductors have only one inductance value and two solder layers; while SMD vertical common mode inductors have two inductance values, and the inductance values are different; there are four solder layers. The inductance value and electrical data flow can be adjusted according to the requirements of consumers. In this way, the large capacity of the mobile phone software inductor is avoided, and the expected effect is indeed the same. Even if the SMD vertical common mode inductor is SMD installation, all the equipment can be soldered, so there is no need for manual installation, avoiding false soldering and poor soldering.
SMD vertical common mode inductors burn out, SMD inductors and other inductances are electronic components that can convert electrical energy into magnetic energy and store them, and they are also consumables. In fact, all electronic products cannot avoid wear and tear in the process of use, it is only the length of the service life. Inductance such as common mode inductors is not only natural loss, but also some other reasons cause inductance damage, such as the inductance coil is burned out and cracked.
Generally, there are three reasons why the SMD vertical common mode inductor burns out:
1. In the process of designing the vertical common mode inductor, the design of the inductor coil is unreasonable, and the design margin is not enough. Generally, it is convenient for the manufacturer to fully consider the various reasons that the product will encounter during the application process. Will carefully design this part.
2. The quality of the silk-covered wire used by the manufacturer for the electromagnetic coil of the vertical common mode inductor is very poor. Some manufacturers use fake and shoddy silk-covered wire to save costs. This kind of fake and shoddy product has poor heat resistance and is easy to burn out.
3. The manufacturer’s general design requirement for the temperature of the vertical common mode inductor coil is 60K, but some manufacturers are convenient to reduce the direct cost, and also reduce the number of turns of the inductor coil, which causes the temperature of the inductor coil to rise to 75K. , under such high temperature conditions, even the normal magnetic coil wire can not bear it for a long time, which may cause the conductivity part to loosen and the varistor to expand, while greatly reducing the level of the magnetic coil cable sheath , The probability of burning out the inductance coil is also greatly increased.
So how do you solve it?
SMD vertical common mode inductors burn out. In fact, to completely solve the problem, we must start from the root cause. We must first avoid such manufacturers who are easy to control costs regardless of product quality, and only by choosing high-quality inductor products can we guarantee it.
Secondly, if it is found that the magnet coil is burnt out, it must be disposed of in time. If it needs to be repaired, you can check whether the number of turns of the short-circuit fault is very small, whether the short-circuit fault is at the edge, and whether other vertical common mode inductors are If it is intact, the damaged part can be removed for emergency use.