
In SMT inductor selection, high-frequency series inductors are specifically designed for RF and microwave circuits, maintaining excellent inductance performance in the MHz to GHz frequency bands. They usually use a ceramic core or air-core structure, featuring high Q values, low ESR, outstanding thermal stability, and high-frequency capacity. They effectively isolate and filter high-frequency AC signal noise and form resonance. High-frequency applications have extremely high requirements for materials, structures, and winding precision, posing stricter challenges for automation equipment.
Core Features of High-Frequency Series Inductors
As typical RF microwave inductors, the high-frequency series offers the following core features: high Q value and low ESR; good thermal stability; high-frequency capacity covering 1MHz to 1GHz; suitable for RF, microwave, and resonant circuits; and high requirements for winding precision and consistency.
Application Scenarios for High-Frequency Series Inductors
High-frequency series inductors are widely used in RF communication equipment, microwave frequency communication equipment, radar, aerospace communications, MRI systems, RF filters, coupling circuits, power amplifiers, and avionics systems. In consumer electronics, they are used in smartphones, Wi-Fi modules, Bluetooth devices, and other wireless communication terminals. In communication infrastructure, they are used in 5G base stations, wireless base stations, and other RF front-end circuits. Buyers are mainly factory customers in communications equipment, RF and microwave circuits, defense and military, and industrial control.
Automation Equipment Configurations for High-Frequency Series
High-frequency series automation production uses high-frequency winding machines, automatic back-film machines, and automatic test/packing machines as the core, suitable for 0402/0603/0805/1206/1210/1812 series products.

First, the high-frequency ceramic inductor automatic winding machine follows the process: automatic feeding → winding → spot welding 1 → wire pulling → spot welding 2 → CCD inspection → scrap wire suction → automatic unloading. High-precision winding ensures the consistency of RF microwave inductors.
Second, the high-frequency ceramic inductor automatic back-film machine follows: UV glue dispensing → inspection → automatic feeding → flattening → visual inspection → curing → automatic unloading.
Third, the high-frequency ceramic inductor automatic test/packing machine follows: automatic feeding → correction → testing → polarity rotation → defect sorting → correction → CCD inspection → tape loading → tape sealing → tape cutting → automatic labeling and receiving.
The equipment supports parameter customization, CCD inspection, and MES system integration, helping factories improve efficiency and reduce manual dependency. Flexible production can be achieved for different batches of RF microwave inductors.
Why is One-Stop Selection More Worry-Free?
The full high-frequency series equipment supports parameter customization, AI visual inspection, and MES system integration, helping customers improve efficiency. Donghong Automation owns multiple independent intellectual property rights, including invention patents, utility model patents, and software copyrights, continuously supporting equipment stability and scalability with patent and software capabilities. The right high-frequency winding machine and back-film machine stabilize the winding, filming, and testing processes of high-frequency inductors.
Company Profile
Founded in 2013, Donghong Automation has a registered capital of 10.82 million RMB, a 5,500㎡ plant, and 124 employees (including 22 engineers). It owns 43 utility model patents, 9 software copyrights, and 4 invention patents, and is a national high-tech enterprise. The company focuses on complete automatic equipment solutions for SMT inductors, covering the full series of CD, NR, high-frequency, and common mode winding machines, dispensing/filming machines, soldering machines, and test/packing machines, with 7×24 response.
Contact
Contact: Huang Tao (+86 13423124288)
Email: [email protected]