贴片元器件——回流焊工艺介绍
在电子制造行业中，回流焊工艺扮演着至关重要的角色，它不仅提高了生产效率，还确保了焊接质量的一致性。回流焊是一种在受控环境…
Application scenarios of varistors
Varistors are widely used in power circuits, communication equipment, household appliances, and industrial control systems, mainly for lightning protection and overvoltage protection.
Introduction to Varistors
Voltage Dependent Resistors (VDRs), also known as Varistors, are a special type of resistor
Working principle of varistor
Varistors are made using ceramic technology, and their internal microstructure contains zinc oxide grains and grain boundaries. Due to the very neat arrangement of crystal molecules inside the grains, the electrical resistivity
Electrical performance parameters of varistors
Depending on the cross-sectional area of the current passing through, there are also situations where 0.1mA and 10mA are used to measure the varistor voltage. At present, chip varistors all use 1mA DC current input
Common application circuits of thermistor
As shown in the figure below, an NTC thermistor (Rv) is connected in series with a precision measuring resistor (Rm) to form a basic voltage divider circuit. The reference voltage VCC in this circuit
Working principle of polymer electrostatic suppressor
The polymer ESD suppressor (PESD) mainly applies the principle of nonlinear volt ampere characteristics of conductive polymer composite materials to provide ESD protection for electronic circuits. Its positive