快速感知温度变化：解读NTC热敏电阻的“热时间常数”
在电动汽车驱动电机、电池包及工业设备的温度监测中，快速且精准的温度感知至关重要。GRACE的KNTC系列NTC热敏电阻以…
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