The chip resistor is one of the metallic glass uranium resistors. It is a resistor made of a high-power chip resistor printed on a substrate by mixing metal powder and glass uranium powder. Resistant to humidity, high temperature and low temperature coefficient. The application of surface mount technology (SMT) is very common, and the proportion of electronic products assembled by SMT has exceeded 90%. China has been involved in SMT technology since the 1980s. With the development of small SMT production equipment, the application scope of SMT is further expanded. In the fields of aviation, aerospace, instrumentation, machine tools, etc., SMT is also used to produce various electronic products or components with small quantities.
Resistors are commonly referred to as resistors in everyday life. It is a current-limiting component. After the resistor is connected to the circuit, the resistance of the resistor is fixed. Generally, it is two pins, which can limit the current through the branch connected to it. A resistor cannot be changed and is called a fixed resistor. A variable resistance is called a potentiometer or a variable resistor. The ideal resistor is linear, ie the instantaneous current through the resistor is proportional to the applied instantaneous voltage. Variable resistor for voltage division. On the exposed resistor body, one or two movable metal contacts are pressed. The contact position determines the resistance between either end of the resistor body and the contact.
characteristic:
Small size and light weight; ·Adapt to reflow and wave soldering; ·Stable electrical performance and high reliability; ·Low assembly cost and matching with automatic mounting equipment; ·High mechanical strength and superior high frequency characteristics.
