Selection and packaging of SMD common mode choke

1.The rated current of common mode choke?should be selected correctly to prevent inductance saturation and coil overheating. Generally, the working current shall not exceed the manufacturer's rated current. In case of excessive use, the temperature rise generated by the inductor shall not exceed 30C, and the inductance shall be reduced within the allowable range of application.#choke

2.The maximum working temperature of the inductor shall not exceed the rated temperature. When the current is over used, the temperature of the device itself shall not exceed the rated temperature of the material.#components

3. The inductance and accuracy of inductors change with frequency. For inductors with high accuracy requirements, should pay attention to the difference between the application frequency and the nominal inductance test frequency.#powersupply

4. According to the actual experience of our developers, 10uh is the best choice for power filters, too high inductance will cause overshoot.#cmchokes

5.Generally speaking, the laminated inductor has stronger anti-interference and heat resistance than the ordinary wound inductor, but the mold wound inductor has strong moisture and heat resistance #modules

6.SMD common mode inductor enclosure packaging, because the SMD integrated high current inductor has the characteristics of miniaturization, high quality, high energy storage and low resistance. It has the characteristics of flat bottom surface suitable for surface mounting, excellent end face strength, good solderability, low magnetic leakage, low direct resistance, and high current resistance. The main function of SMD common mode inductor shell packaging is to convert electrical energy, store it, and then release it. It is suitable for miniaturized products and has strict requirements on product space. In addition, it can be produced in batches mechanically with a mounter.