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VC080514C300 Datasheet(PDF) 6 Page - AVX Corporation |
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VC080514C300 Datasheet(HTML) 6 Page - AVX Corporation |
6 / 10 page 6 TransGuard ® AVX Multilayer Ceramic Transient Voltage Suppressors Multilayer construction and improved grain structure result in excellent transient clamping characteristics up to 20 amps peak current, while maintaining very low leakage currents under DC operating conditions. The VI curves below show the voltage/current characteristics for the 5.6V, 9V, 14V, 18V and low capacitance StaticGuard parts with currents ranging from parts of a micro amp to tens of amps. Traditionally varistors have suffered degradation of electrical performance with repeated high current pulses resulting in decreased breakdown voltage and increased leakage cur- rent. It has been suggested that irregular intergranular boundaries and bulk material result in restricted current paths and other non-Schottky barrier paralleled conduction paths in the ceramic. Repeated pulsing of TransGuard ® tran- sient voltage suppressors with 150Amp peak 8 x 20μS waveforms shows negligible degradation in breakdown voltage and minimal increases in leakage current. This does not mean that TransGuard ® suppressors do not suffer degradation, but it occurs at much higher current. TYPICAL PERFORMANCE CURVES (0402 CHIP SIZE) VOLTAGE/CURRENT CHARACTERISTICS PULSE DEGRADATION VC04LC18V500 VC040214X300 VC040218X400 VC040205X150 VC040209X200 100 80 60 40 20 0 10-9 10-7 10-5 10-3 10-1 10 103 105 Current (A) VC04LC18V500 VC040214X300 VC040218X400 VC040205X150 VC040209X200 10 100 1000 10000 8kV ESD STRIKES 35 30 25 20 15 10 5 VC040205X VC04LC18V VC040214X VC040218X VC040209X 0 -5 -10 -15 -20 -25 0.01 0.1 1 10 Frequency (GHz) VC04LC18V500 VC040214X300 VC040218X400 VC040205X150 VC040209X200 1300 1200 10 100 1000 IMPULSE DURATION ( μS) 1100 1000 900 800 700 600 500 400 300 200 100 0 PEAK POWER VS PULSE DURATION INSERTION LOSS CHARACTERISTICS ESD TEST OF 0402 PARTS |
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