SMT SMT processing customers are very concerned about the processing quality, the quality of SMT processing is the top priority, but for SMT OEM material selection of electronic components is also one of the key factors affecting product quality. Electronic processing is inseparable from electronic components, the selection of components is also one of the core issues, not only to ensure the quality of products, but also to control the cost within the budget, quality and cost balance. The following professional SMT processing factory kingford to give you a brief introduction to SMT patch processing of some common components.
SMT patch processing common materials
1. Patch resistance
Resistance is an electronic component with resistance characteristics, which is widely used in SMT patch processing. Resistors are divided into fixed resistors and variable resistors (potentiometers), which play the role of voltage balancing, shunt and current limiting in the circuit.
2. Patch capacitance
Capacitor is also one of the basic components of SMT processing. It is a storage unit for electrical energy. It performs coupling, filtering, DC and tuning functions in electronic circuits.
3. Induction coil
This is what we call an inductance, which stores magnetic energy. Inductor in SMT machining is usually composed of frame, winding, shield cover, iron core and so on. The resistance of the potentiometer can be changed. In SMT process, the resistance needs to be adjusted continuously within the specified range, called potentiometer. The potentiometer is composed of a shell, a sliding end, a rotating shaft, a ring resistor and three lead ends.
A transformer is generally composed of an iron core and a coil, which has two or more windings, of which the winding connected to the power supply is called a primary coil, and the rest is called a secondary coil. When there is AC current in the primary coil, AC flux will be generated in the magnetic core, making the voltage induction in the secondary coil. Transformer is mainly used for AC voltage conversion, current conversion, power conversion, impedance conversion and buffer isolation.
5. Crystal diode
The crystal diode is composed of PN junction, electrode lead and additional sealed shell, which has unidirectional conductivity.
6. Field effect transistor
This diode is also a PN junction semiconductor device. Unlike transistors, it does not take advantage of the electrical conductivity of the PN junction in chips machined by SMT, but of its insulating properties.
PCBA processing services
Shenzhen kingford specializes in providing integrated PCBA electronic manufacturing services, including upstream electronic component procurement to PCB production and processing, SMT patches, DIP plug-ins, PCBA testing, finished product assembly and other one-stop services.
The company gives full play to its competitive advantages in scale procurement and quality control, and has signed long-term cooperation agreements with many electronic component manufacturers at home and abroad and around the world to ensure the quality and stable supply of raw materials, and transfer the benefits to customers.
Long-term maintenance of IC, resistance, capacitance, inductance, audion and other components procurement advantages, can greatly save the customer's inventory cost, improve the production turnover efficiency, save time.
We provide PCBA processing services, starting from PCB circuit board production, our own PCB manufacturers (obtained the very strict TS16949 certification of the automotive industry), pay attention to the quality of the circuit board and PCBA quality control system.
With decades of experience in purchasing electronic components, we maintain long-term cooperation with large brands to ensure the original packaging and procurement channels of components. In the process of component packaging, the selection of Qianzhu and Letai solder paste, to ensure the reliability of welding, with automatic printing press, Panasonic high-speed SMT machine, up and down eight temperature zone reflow welding, AOI automatic optical detector, can effectively ensure the reliability and quality of electronic packaging process.
In addition, perfect IPC, IPQC, OQA and other management processes, clear job responsibilities, strict implementation of IPC electronic assembly acceptance standards. For PCBA testing, we have professional engineers to perform 100% batch testing using a variety of test stands, including access, noise, amplitude, signal, temperature, humidity, drop or to perform customer detailed test plans. All efforts are aimed at becoming a refined PCBA processing factory.