StaticGuard AVX Multilayer Ceramic Transient Voltage Suppressors ESD Protection for CMOS, Bi Polar and SiGe Based Systems GENERAL INFORMATION • Typical ESD failure voltage for CMOS and/or Bi Polar is ≥ 200V. • Low capacitance (<200pF) is required for high-speed data transmission. • 15kV ESD pulse (air discharge) per IEC 1000-4-2, Level 4, generates < 20 millijoules of energy. • Low leakage current (IL) is necessary for battery operated equipment. StaticGuard AVX Part Number Working Working Voltage Voltage (DC) (AC) Clamping Voltage Test Current For VC Maximum Leakage Current Transient Energy Rating Peak Current Rating Typical Cap Case Size Elements VC04LC18V500 _ _ ≤18.0 ≤14.0 50 1 10 0.02 15 40 0402 1 VC06LC18X500 _ _ ≤18.0 ≤14.0 50 1 10 0.05 30 50 0603 1 VC08LC18A500 _ _ ≤18.0 ≤14.0 50 1 10 0.10 30 80 0805 1 VC12LC18A500 _ _ ≤18.0 ≤14.0 50 1 10 0.10 30 200 1206 1 ≤18.0 ≤14.0 50 1 10 0.10 30 200 Axial 1 VA10LC18A500 _ _ Termination/Lead Finish Code Packaging Code VW (DC) VW (AC) VC IVC IL ET IP Cap DC Working Voltage (V) AC Working Voltage (V) Clamping Voltage (V @ IVC ) Test Current for VC (A, 8x20μS) Maximum Leakage Current at the Working Voltage (μA) Transient Energy Rating (J, 10x1000μS) Peak Current Rating (A, 8x20μS) Typical Capacitance (pF) @ frequency specified and 0.5 V Not RoHS Compliant LEAD-FREE COMPATIBLE COMPONENT For RoHS compliant products, please select correct termination style. PART NUMBER IDENTIFICATION Chips Axials V C 08 LC 18 A 500 R P 40 V A 10 LC 18 A 500 R L TERMINATION FINISH: P = Ni/Sn Alloy (Plated) LEAD FINISH: L = Copper Clad Steel, Solder Coated PACKAGING (Pcs/Reel) PACKAGING (Pcs/Reel) CLAMPING VOLTAGE CLAMPING VOLTAGE ENERGY RATING ENERGY RATING WORKING VOLTAGE (0-18VDC) WORKING VOLTAGE (0-18VDC) LOW CAPACITANCE DESIGN LOW CAPACITANCE DESIGN CASE SIZE DESIGNATOR CASE SIZE DESIGNATOR CASE STYLE CASE STYLE PRODUCT DESIGNATOR PRODUCT DESIGNATOR StaticGuard AVX Multilayer Ceramic Transient Voltage Suppressors ESD Protection for CMOS, Bi Polar and SiGe Based Systems TYPICAL PERFORMANCE DATA StaticGuard ESD RESPONSE� VC06LC18X500 Capacitance Histogram IEC 1000-4-2 (8 Kv Contact Discharge) 50 30% VC08LC18A500 25% Clamping Voltage (V) VC12LC18A500 20% 15% 10% 45 VC06LC18X500 40 35 5% 0% 45 50 55 60 Capacitance (pF @ 1MHz & 0.5V) Measured Data 30 1 65 10 100 1000 Number of ESD Strikes 10000 Calculated VC08LC18A500 Capacitance Histogram StaticGuard S21 14% 14% 12% 12% 10% 10% 8% 8% 6% 6% 4% 4% 2% 2% 0 DB VC12LC18A500 0% 61 63 65 1MHz, 0.5VRMS 67 69 71 73 75 77 79 Capacitance (pF) Measured Data 81 83 85 87 89 VC08LC18A500 -10 -20 VC06LC18X500 -30 0% -40 0 500 1000 1500 Frequency (MHz) Calculated Distribution VC12LC18A500 Capacitance Histogram 2000 2500 VI Curves - StaticGuard Products 100 14% 12% 12% 10% 10% 8% 8% 6% 6% 4% 4% 2% 2% 80 Voltage (V) 14% 60 40 20 0% 161 163 165 167 169 171 173 175 177 179 181 183 185 187 189 0% 0 10-9 10-6 10-3 Current (A) Capacitance (pF) 1MHz, 0.5VRMS Measured Data Calculated Distribution 06LC 08LC 10+0 12LC 10+3 10LC 41 StaticGuard AVX Multilayer Ceramic Transient Voltage Suppressors TYPICAL PERFORMANCE CURVES (0402 CHIP SIZE) VOLTAGE/CURRENT CHARACTERISTICS PULSE DEGRADATION 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 current. 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® transient 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. 100 VC04LC18V500 VC040218X400 VC040214X300 VC040209X200 VC040205X150 Voltage (V) 80 ESD TEST OF 0402 PARTS 60 35 40 VC04LC18V500 30 0 10-9 10-7 10-5 10-3 10-1 10 103 BREAKDOWN VOLTAGE (Vb) 20 105 Current (A) PEAK POWER VS PULSE DURATION 25 20 VC040214X300 15 VC040209X200 10 1300 VC040218X400 VC040205X150 1200 5 1100 10 100 1000 10000 8kV ESD STRIKES VC040218X400 VC040214X300 VC040209X200 VC04LC18V500 VC040205X150 1000 800 INSERTION LOSS CHARACTERISTICS 0 700 -5 600 500 -10 dB PEAK POWER (W) 900 400 300 200 VC04LC18V VC040218X -15 VC040214X VC040209X VC040205X -20 100 0 10 100 IMPULSE DURATION (μS) 42 1000 -25 0.01 0.1 1 Frequency (GHz) 10