AVRM2012 Datasheet | TDK Corporation

Overview of the AVR series CHARACTERISTICS OF CHIP VARISTOR Varistors are voltage dependent nonlinear resistive elements with a resistance that decreases rapidly when the voltage is over the constant value. Varistors bee zener diode of 2 serial connection and equivalent, and does not have polarity. EQUIVALENT CIRCUIT OF CHIP VARISTORS 2 Zener Diodes A capacitance content CURRENT vs. VOLTAGE CHARACTERISTICS Current(A) Positive direction 10- 1 10- 2 10- 3 Zener diode /Vz:6.8V 10- 4 10- 5 Chip varistor /V1m A:12V - 18 - 14 - 10 - 6 - 2 2 - 10- 5 10 14 18 - 10- 4 - 10- 3 Negative direction - 10- 2 - 10- 1 Voltage(V) THE EFFECT OF THE VARISTOR Without varistor A malfunction and failure of electronic equipment ESD, Surge voltage CHIP VARISTORS FEATURE FOR AUTOMOTIVE GRADE Reliability characteristics evaluated based on AEC-Q200 condition. High ESD withstanding voltage Small-sized products are available 125°C, 150°C Supported Figure 1 internal structure of multilayer chip varistors Power line Signal line With Varistor Suppress transient voltage by inserting varistor in a circuit ESD, Surge voltage Power line Signal line Insert a varistor between a line and...