CD Series Inductors: The “Unsung Heroes” of the Smart Era

While nanoscale chips and foldable screens grab the spotlight, CD Series inductors quietly support the stable operation of modern electronic devices with their compact size of less than 5mm. These chip inductors, manufactured using multi-layer ceramic technology, have become core components in three key industries—5G communications, electric vehicles, and smart home systems—thanks to their excellent frequency response characteristics and temperature stability.

The “Signal Gatekeeper” of Mobile Communications

According to Huawei RF engineers, a single 5G smartphone requires 18-22 CD Series inductors, with 8 specifically dedicated to millimeter-wave antenna arrays. These inductors suppress harmonic interference in the 900MHz-6GHz frequency band, enabling smartphones to maintain a reception sensitivity of -85dBm even in densely populated urban areas. In OPPO's latest 240W fast charging solution, a π-type filter composed of three high-current-rated inductors successfully controls voltage ripple within ±1%.

The “Neural Synapses” of New Energy Vehicles

The BMS system of the Tesla Model Y uses 72 CD Series inductors to build a distributed power network, with each inductor capable of withstanding an ambient temperature of 125°C. The laser radar module of the NIO ET5 uses military-grade inductors that maintain a precise inductance value of 22μH even in extreme cold conditions of -40°C. Maintenance data shows that 40% of electric vehicle startup failures are caused by inductor aging leading to DC-DC conversion failure.

The “invisible butler” of smart homes

Xiaomi's latest wall-mounted TV achieves a 30% reduction in power board weight using seven ultra-thin inductors (0.8mm thickness), while Haier's smart refrigerator employs magnetically shielded inductors to eliminate interference from the compressor on Wi-Fi signals. Notably, industrial IoT devices must select models with epoxy resin coating, whose sulfurization resistance effectively withstands corrosive gases in factory environments.

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