25A Power Filter EMI High-frequency Two-stage Power Low-pass Filter Board For Power Amplifier PCB Copper Electrical Filter

Product features: 1. Using high-quality materials with guaranteed quality 2. This product is widely used in precision measurement instruments, building automation, precision mechanical equipment, elevators, lifting equipment, automation systems, calculator office equipment, servo system inverter equipment, frequency conversion equipment, lighting, information communication equipment, UPS switching power supply, automotive electronics and other equipment 3. It is a reactive low-pass filter 4. Obvious filtering effect 5. Stable performance Product Description: Power EMI filter is a reactive low-pass filter installed at the power inlet of electronic equipment. It can suppress noise interference transmitted through the power line of the power grid, as well as high-frequency interference signals generated by the electronic equipment itself, which can harm other electronic equipment. Therefore, EMI has become a mandatory component in electronic devices. Power supply noise is a type of electromagnetic interference, with a frequency spectrum of approximately 10kHz to 30MHz for conducted noise, with a maximum of 150MHz. According to the different propagation directions, power source noise can be divided into two categories: one is external interference introduced from the power input line, and the other is noise generated by electronic devices and transmitted through the power line. This indicates that noise belongs to bidirectional interference signals, and electronic devices are both the object of noise interference and a source of noise. In terms of formation characteristics, noise interference can be divided into serial mode interference and Common-mode interference. Serial mode interference is the noise between two power lines (referred to as line to line). Common-mode interference is the noise of two power lines to the ground (referred to as line to ground). Therefore, the electromagnetic interference filter should meet the requirements of Electromagnetic compatibility (EMC), and must also be a two-way RF filter. On the one hand, it should filter out the external electromagnetic interference introduced from the AC power line, on the other hand, it can also avoid its own equipment from generating noise interference to the outside, so as not to affect the normal operation of other electronic equipment in the same electromagnetic environment. In addition, the EMI filter can suppress the series mode interference and Common-mode interference. Precautions: The selection of EMI filters should consider their operating voltage, current, and withstand voltage values EMI filters should be installed at the entrance of the power supply to reduce radiation interference The best choice for EMI filter connection line is to use double adhesive wire, which can eliminate some high-frequency interference signals EMI filter input and output lines should not be parallel, and a certain distance should be opened to ensure the function of the filter The E-point of the EMI filter must have good contact with the chassis shell and be grounded properly Shipping list: Module X1