AVRM2012C330KT801N TDK

V o lt ag e Pr otec t i o n D e v i c e s July 2019 Cl Pb Br REACH Halogen Lead RoHS SVHC-Free Free Free Chip varistors Voltage Protection Devices Automotive grade AVR series AVRM, AVR-M series AVRM1608/AVR-M1608 JIS 1608 [EIA 0603] AVRM2012/AVR-M2012 JIS 2012 [EIA 0805] AVRL series AVRL10 JIS 1005 [EIA 0402] AVRL16 JIS 1608 [EIA 0603] AVRH series AVRH10 JIS 1005 [EIA 0402] (2/14) Voltage Protection Devices Product compatible with RoHS directive Chip varistors Compatible with lead-free solders AEC-Q200 Automotive grade Overview of the AVR series CHARACTERISTICS OF CHIP VARISTOR EQUIVALENT CIRCUIT OF CHIP VARISTORS Varistors are voltage dependent nonlinear resistive elements with 2 Zener Diodes a resistance that decreases rapidly when the voltage is over the constant value. Varistors become zener diode of 2 serial connection and equiva- A capacitance content lent, and does not have polarity. CHIP VARISTORS FEATURE FOR AUTOMOTIVE CURRENT vs. VOLTAGE CHARACTERISTICS GRADE 1 10 Zener diode 2 Reliability characteristics evaluated based on AEC-Q200 con- 10 /Vz:6.8V 3 10 Chip varistor Positive direction dition. /V1mA:12V 4 10 High ESD withstanding voltage 5 10 Small-sized products are available 18 14 10 61262 0 14 18 5 125C, 150C Supported 10 4 10 3 Negative direction 10 Figure 1 internal structure of multilayer chip varistors 2 10 1 10 ( ) Voltage V THE EFFECT OF THE VARISTOR Without varistor A malfunction and failure of electronic equipment ESD, Surge voltage Power line IC Signal line With Varistor Suppress transient voltage by inserting varistor in a circuit ESD, Surge voltage No. Name (1) Semiconductor ceramic (2) Internal electrode(Pd) (3) Ag (4) Terminal electrode Ni Power line IC (5) Sn Signal line Insert a varistor between a line and ground : Chip varistor 20190704 / vpd_automotive_varistors_avr_en.fm Current(A)