1 transguard ? avx multilayer ceramic transient voltage suppressors general description the avx transguard ? transient voltage suppressors (tvs) with unique high-energy multilayer construction represents state-of-the-art overvoltage circuit protection. monolithic multilayer construction provides protection from voltage transients caused by esd, lightning, nemp, inductive switch- ing, etc. true surface mount product is provided in eia industry standard packages. thru-hole components are supplied as conformally coated axial devices. transguard ? description transguard ? products are zinc oxide (zno) based ceramic semiconductor devices with non-linear voltage-current charac- teristics (bi-directional) similar to back-to-back zener diodes. they have the added advantage of greater current and energy handling capabilities as well as emi/rfi attenuation. devices are fabricated by a ceramic sintering process that yields a structure of conductive zno grains surrounded by electrically insulating barriers, creating varistor-like behavior. avx vg series parts (large case size, high energy) are glass encapsulated. these parts provide the same high reliability as traditional vc series parts. the glass encapsulation pro- vides also enhanced resistance against harsh environment or process such as acids, salts, chlorite flux. the number of grain-boundary interfaces between conduct- ing electrodes determines breakdown voltage of the device. high voltage applications such as ac line protection require many grains between electrodes while low voltage requires few grains to establish the appropriate breakdown voltage. single layer ceramic disc processing proved to be a viable production method for thick cross section devices with many grains, but attempts to address low voltage suppression needs by processing single layer ceramic disc formulations with huge grain sites has had limited success. avx, the world leader in the manufacture of multilayer ceramic capacitors, now offers the low voltage transient protection marketplace a true multilayer, monolithic surface mount varistor. technology leadership in processing thin dielectric materials and patented processes for precise ceramic grain growth have yielded superior energy dissipation in the smallest size. now a varistor has voltage characteristics determined by design and not just cell sorting whatever falls out of the process. multilayer ceramic varistors are manufactured by mixing ceramic powder in an organic binder (slurry) and casting it into thin layers of precision thickness. metal electrodes are deposited onto the green ceramic layers which are then stacked to form a laminated structure. the metal electrodes are arranged so that their terminations alternate from one end of the varistor to the other. the device becomes a monolithic block during the sintering (firing) cycle providing uniform energy dissipation in a small volume.
2 important: for part number identification only, not for construction of part numbers. the information below only defines the numerical value of part number digits, and cannot be used to construct a desired set of electrical limits. please refer to the transguard ? part number data for the correct electri- cal ratings. important: for part number identification only, not for construction of part numbers. the information below only defines the numerical value of part number digits, and cannot be used to construct a desired set of electrical limits. please refer to the transguard ? part number data for the correct electri- cal ratings. v c 1206 05 d 150 r p termination finish: p = ni/sn alloy (plated) packaging (pcs/reel): style d r t w vc0402 n/a n/a n/a 10,000 vc0603 1,000 4,000 10,000 n/a vc0805 1,000 4,000 10,000 n/a vc1206 1,000 4,000 10,000 n/a vc1210 1,000 2,000 10,000 n/a clamping voltage: where: 100 = 12v 500 = 50v 150 = 18v 560 = 60v 200 = 22v 580 = 60v 250 = 27v 620 = 67v 300 = 32v 650 = 67v 390 = 42v 101 = 100v 400 = 42v 121 = 120v energy: where: a = 0.1j j = 1.5j s = 1.9-2.0j b = 0.2j k = 0.6j t = 0.01j c = 0.3j l = 0.8j u = 4.0-5.0j d = 0.4j m = 1.0j v = 0.02j e = 0.5j n = 1.1j w = 6.0j f = 0.7j p = 3.0j x = 0.05j g = 0.9j q = 1.3j y = 12.0j h = 1.2j r = 1.7j z = 25.0j working voltage: where: 03 = 3.3 vdc 18 = 18.0 vdc 05 = 5.6 vdc 26 = 26.0 vdc 09 = 9.0 vdc 30 = 30.0 vdc 12 = 12.0 vdc 48 = 48.0 vdc 14 = 14.0 vdc 60 = 60.0 vdc 85 = 85.0 vdc case size designator: size length width 0402 1.000.10mm (0.040"0.004") 0.50.10mm (0.020"0.004") 0603 1.600.15mm (0.063"0.006") 0.80.15mm (0.032"0.006") 0805 2.010.2mm (0.079"0.008") 1.250.2mm (0.049"0.008") 1206 3.200.2mm (0.126"0.008") 1.600.2mm (0.063"0.008") 1210 3.200.2mm (0.126"0.008") 2.490.2mm (0.098"0.008") case style: c = chip g = chip glass encapsulated product designator: v = varistor marking: all standard surface mount transguard ? chips will not be marked. v a 1000 05 d 150 r l lead finish: copper clad steel, solder coated packaging (pcs/reel): style d r t va1000 1,000 3,000 7,500 va2000 1,000 2,500 5,000 clamping voltage: where: 100 = 12v 580 = 60v 150 = 18v 650 = 67v 300 = 32v 101 = 100v 400 = 42v 121 = 120v energy: where: a = 0.1j d = 0.4j k = 2.0j working voltage: where: 03 = 3.3 vdc 26 = 26.0 vdc 05 = 5.6 vdc 30 = 30.0 vdc 14 = 14.0 vdc 48 = 48.0 vdc 18 = 18.0 vdc 60 = 60.0 vdc case size designator: size length diameter 1000 4.32mm (0.170") 2.54mm (0.100") 2000 4.83mm (0.190") 3.56mm (0.140") case style: a = axial product designator: v = varistor marking: all axial transguards ? are marked with vendor identification, product identification, voltage/energy rating code and date code (see example below): where: avx = always avx (vendor identification) tvs = always tvs (product identification - transient voltage suppressor) 05d = working vdc and energy rating (joules) where: 05 = 5.6 vdc, d = 0.4j 725 = three digit date code where: 8 = last digit of year (2008) 25 = week of year avx tvs 05d 825 transguard ? avx multilayer ceramic transient voltage suppressors part number identification surface mount devices axial leaded devices not rohs compliant lead-free compatible component for rohs compliant products, please select correct termination style.
3 transguard ? avx multilayer ceramic transient voltage suppressors electrical characteristics avx pn v w (dc) v w (ac) v b v c i vc i l e t i p cap freq case vc060303a100 3.3 2.3 5.020% 12 1 100 0.1 30 1450 k 0603 vc080503a100 3.3 2.3 5.020% 12 1 100 0.1 40 1400 k 0805 vc080503c100 3.3 2.3 5.020% 12 1 100 0.3 120 5000 k 0805 vc120603a100 3.3 2.3 5.020% 12 1 100 0.1 40 1250 k 1206 vc120603d100 3.3 2.3 5.020% 12 1 100 0.4 150 4700 k 1206 va100003a100 3.3 2.3 5.020% 12 1 100 0.1 40 1500 k 1000 va100003d100 3.3 2.3 5.020% 12 1 100 0.4 150 4700 k 1000 vc040205x150 5.6 4.0 8.520% 18 1 35 0.05 20 175 m 0402 vc060305a150 5.6 4.0 8.520% 18 1 35 0.1 30 750 k 0603 vc080505a150 5.6 4.0 8.520% 18 1 35 0.1 40 1100 k 0805 vc080505c150 5.6 4.0 8.520% 18 1 35 0.3 120 3000 k 0805 vc120605a150 5.6 4.0 8.520% 18 1 35 0.1 40 1200 k 1206 vc120605d150 5.6 4.0 8.520% 18 1 35 0.4 150 3000 k 1206 va100005a150 5.6 4.0 8.520% 18 1 35 0.1 40 1000 k 1000 va100005d150 5.6 4.0 8.520% 18 1 35 0.4 150 2800 k 1000 vc040209x200 9.0 6.4 12.715% 22 1 25 0.05 20 175 m 0402 vc060309a200 9.0 6.4 12.715% 22 1 25 0.1 30 550 k 0603 vc080509a200 9.0 6.4 12.715% 22 1 25 0.1 40 750 k 0805 vc080512a250 12.0 8.5 1615% 27 1 25 0.1 40 525 k 0805 vc040214x300 14.0 10.0 18.512% 32 1 15 0.05 20 85 k 0402 vc060314a300 14.0 10.0 18.512% 32 1 15 0.1 30 350 k 0603 vc080514a300 14.0 10.0 18.512% 32 1 15 0.1 40 325 k 0805 vc080514c300 14.0 10.0 18.512% 32 1 15 0.3 120 900 k 0805 vc120614a300 14.0 10.0 18.512% 32 1 15 0.1 40 600 k 1206 vc120614d300 14.0 10.0 18.512% 32 1 15 0.4 150 1050 k 1206 va100014a300 14.0 10.0 18.512% 32 1 15 0.1 40 325 k 1000 va100014d300 14.0 10.0 18.512% 32 1 15 0.4 150 1100 k 1000 vc121016j390 16.0 13.0 25.510% 40 2.5 10 1.6 500 3100 k 1210 vg181216p400 16.0 11.0 24.510% 42 5 10 2.9 1000 5000 k 1812 vg222016y400 16.0 11.0 24.510% 42 10 10 7.2 1500 13000 k 2220 vc040218x400 18.0 13.0 25.510% 42 1 10 0.05 20 65 m 0402 vc060318a400 18.0 13.0 25.510% 42 1 10 0.1 30 150 k 0603 vc080518a400 18.0 13.0 25.510% 42 1 10 0.1 30 225 k 0805 vc080518c400 18.0 13.0 25.510% 42 1 10 0.3 100 550 k 0805 vc120618a400 18.0 13.0 25.510% 42 1 10 0.1 30 350 k 1206 vc120618d400 18.0 13.0 25.510% 42 1 10 0.4 150 900 k 1206 vc120618e380 18.0 13.0 25.510% 38 1 15 0.5 200 930 k 1206 vc121018j390 18.0 13.0 25.510% 42 5 10 1.6 500 3100 k 1210 va100018a400 18.0 13.0 25.510% 42 1 10 0.1 40 350 k 1000 va100018d400 18.0 13.0 25.510% 42 1 10 0.4 150 900 k 1000 vg121022r440 22.0 17.0 2710% 44 2.5 10 1.7 400 1600 k 1210 vc060326a580 26.0 18.0 34.510% 60 1 10 0.1 30 155 k 0603 vc080526a580 26.0 18.0 34.510% 60 1 10 0.1 30 120 k 0805 vc080526c580 26.0 18.0 34.510% 60 1 10 0.3 100 250 k 0805
v w (dc) dc working voltage (v) v w (ac) ac working voltage (v) v b typical breakdown voltage (v @ 1ma dc ) v b to l v b tolerance is from typical value v c clamping voltage (v @ i vc ) i vc test current for v c (a, 8x20s) i l maximum leakage current at the working voltage (a) e t transient energy rating (j, 10x1000s) i p peak current rating (a, 8x20s) cap typical capacitance (pf) @ frequency specified and 0.5 v rms freq frequency at which capacitance is measured (k = 1khz, m = 1mhz) 4 transguard ? avx multilayer ceramic transient voltage suppressors electrical characteristics avx pn v w (dc) v w (ac) v b v c i vc i l e t i p cap freq case vc120626d580 26.0 18.0 34.510% 60 1 10 0.4 120 500 k 1206 vc120626f540 26.0 20.0 33.010% 54 1 15 0.7 200 600 k 1206 vc121026h560 26.0 18.0 34.510% 60 5 10 1.2 300 2150 k 1210 vc181226p540 26.0 20.0 33.010% 54 5 15 3.0 800 3000 k 1812 va100026d580 26.0 18.0 34.510% 60 1 10 0.4 120 650 k 1000 vc060330a650 30.0 21.0 41.010% 67 1 10 0.1 30 125 k 0603 vc080530a650 30.0 21.0 41.010% 67 1 10 0.1 30 90 m 0805 vc080530c650 30.0 21.0 41.010% 67 1 10 0.3 80 250 k 0805 vc120630d650 30.0 21.0 41.010% 67 1 10 0.4 120 400 k 1206 vc121030g620 30.0 21.0 41.010% 67 5 10 0.9 220 1750 k 1210 vc121030h620 30.0 21.0 41.010% 67 5 10 1.2 280 1850 k 1210 vc121030s620 30.0 21.0 41.010% 67 5 10 1.9 300 1500 k 1210 va100030d650 30.0 21.0 41.010% 67 1 10 0.4 120 550 k 1000 vc080531c650 31.0 25.0 39.010% 65 1 10 0.3 80 250 k 0805 vc120631m650 31.0 25.0 39.010% 65 1 15 1.0 200 500 k 1206 vc080538c770 38.0 30.0 47.010% 77 1 10 0.3 80 200 k 0805 vc120638n770 38.0 30.0 47.010% 77 1 15 1.1 200 400 k 1206 vg121038s770 38.0 30.0 47.010% 77 2.5 15 2.0 400 1000 k 1210 vg181238u770 38.0 30.0 47.010% 77 5 15 4.2 800 1300 k 1812 VG222038Y770 38.0 30.0 47.010% 77 10 15 12 2000 4200 k 2220 vc120642l800 42.0 32.0 51.010% 80 1 15 0.8 180 600 k 1206 vc120645k900 45.0 35.0 56.010% 90 1 15 0.6 200 260 k 1206 vg181245u900 45.0 35.0 56.010% 90 5 15 4.0 500 1200 k 1812 vc120648d101 48.0 34.0 62.010% 100 1 10 0.4 100 225 k 1206 vc121048g101 48.0 34.0 62.010% 100 5 10 0.9 220 450 k 1210 vc121048h101 48.0 34.0 62.010% 100 5 10 1.2 250 500 k 1210 va100048d101 48.0 34.0 62.010% 100 1 10 0.4 100 200 k 1000 vc120656f111 56.0 40.0 68.010% 110 1 15 0.7 100 180 k 1206 vc181256u111 56.0 40.0 68.010% 110 5 15 4.8 500 800 k 1812 vc121060j121 60.0 42.0 76.010% 120 5 10 1.5 250 400 k 1210 va200060k121 60.0 42.0 76.010% 120 1 10 2.0 300 400 k 2000 vc120665l131 65.0 50.0 82.010% 135 1 15 0.8 100 250 k 1206 vc120665m131 65.0 50.0 82.010% 135 1 15 1.0 150 250 k 1206 vg121065p131 65.0 50.0 8210% 135 2.5 15 2.7 350 600 k 1210 vc121085s151 85.0 60.0 10010% 150 1 35 2.0 250 275 k 1210
5 dimensions l w t t dimensions: millimeters (inches) d max. 0.51 0.05 (0.020" 0.002") l max. 25.4 (1.0") min. lead length dimensions: mm (inches) avx style va1000 va2000 (l) max length mm 4.32 4.83 (in.) (0.170) (0.190) (d) max diameter mm 2.54 3.56 (in.) (0.100) (0.140) dimensions: mm (inches) avx style 0402 0603 0805 1206 1210 1812 2220 (l) length mm 1.000.10 1.600.15 2.010.20 3.200.20 3.200.20 4.500.30 5.700.40 (in.) (0.0400.004) (0.0630.006) (0.0790.008) (0.1260.008) (0.1260.008) (0.1770.012) (0.2240.016) (w) width mm 0.500.10 0.800.15 1.250.20 1.600.20 2.490.20 3.200.30 5.000.40 (in.) (0.0200.004) (0.0310.006) (0.0490.008) (0.0630.008) (0.0980.008) (0.1260.012) (0.1970.016) (t) max thickness mm 0.6 0.9 1.02 1.02 1.70 2.00 2.50 (in.) (0.024) (0.035) (0.040) (0.040) (0.067) (0.080) (0.098) (t) land length mm 0.250.15 0.350.15 0.71 max. 0.94 max. 1.14 max. 1.00 max. 1.00 max. (in.) (0.0100.006) (0.0140.006) (0.028 max.) (0.037 max.) (0.045 max.) (0.039 max.) (0.039 max.) lead finish: copper clad steel, solder coated
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 20s 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 10 3 10 5 current (a) voltage (v) vc04lc18v500 vc040214x300 vc040218x400 vc040205x150 vc040209x200 10 100 1000 10000 8kv esd strikes breakdown voltage (vb) 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) db vc04lc18v500 vc040214x300 vc040218x400 vc040205x150 vc040209x200 1300 1200 10 100 1000 impulse duration ( s) peak power (w) 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
7 transguard ? avx multilayer ceramic transient voltage suppressors typical performance curves (0603, 0805, 1206 & 1210 chip sizes) voltage/current characteristics multilayer construction and improved grain structure result in excellent transient clamping characteristics up to 500 amps peak current, depending on case size and energy rating, while maintaining very low leakage currents under dc operating condi- tions. the vi curve below shows the voltage/current characteristics for the 3.3v, 5.6v, 12v, 14v, 18v, 26v, 30v, 48v and 60vdc parts with currents ranging from parts of a micro amp to tens of amps. vi curves - 9v, 12v, and 14v products 50 40 30 20 10 0 10 -9 10 -6 10 -3 10 +0 10 +3 current (a) voltage (v) 9v, 0.1j 12v, 0.1j 14v, 0.1j 14v, >0.1j vi curves - 3.3v and 5.6v products 25 20 15 10 5 0 10 -9 10 -6 10 -3 10 +0 10 +3 current (a) voltage (v) 3.3v, 0.1j 3.3v, >0.1j 5.6v, 0.1j 5.6v, >0.1j vi curves - 30v, 48v, and 60v products 200 150 100 50 0 10 -9 10 -6 10 -3 10 +0 10 +3 current (a) voltage (v) 30v, 0.1j 30v, >0.1j 48v 60v vi curves - 18v and 26v products 100 80 60 40 20 0 10 -9 10 -6 10 -3 10 +0 10 +3 current (a) voltage (v) 18v, 0.1j 18v, >0.1j 26v, 0.1j 26v, >0.1j vi curve - 85v product 0 40 80 120 160 200 1.e-09 1.e-06 1.e-03 1.e+00 1.e+03 current (a) voltage (v)
8 transguard ? avx multilayer ceramic transient voltage suppressors typical performance curves (0603, 0805, 1206 & 1210 chip sizes) 3.3v
9 transguard ? avx multilayer ceramic transient voltage suppressors temperature dependence of voltage 10 20 30 40 50 60 70 80 90 100 voltage as a percent of average breakdown voltage 10 -9 10 -8 10 -7 10 -6 10 -5 10 -4 10 -3 10 -2 current (a) -40 c 25 c 85 c 125 c -60 -40 -20 0 20 40 60 80 100 120 140 160 1.25? 1? 0.8? 0.6? 0.4? 0.2 ? 0 ? o typical energy derating vs temperature temperature ( c) ? energy derating typical performance curves (0603, 0805, 1206 & 1210 chip sizes) temperature characteristics transguard ? suppressors are designed to operate over the full temperature range from -55c to +125c. this operating temperature range is for both surface mount and axial leaded products. -55 -40 -20 0 20 40 60 80 100 120 140 150 typical breakdown and clamping voltages vs temperature - 18v 18v temperature ( c) typical breakdown (v ) and clamping (v ) voltages b c o 50 40 30 20 v v b c ( ) ( ) -55 -40 -20 0 20 40 60 80 100 120 140 150 typical breakdown and clamping voltages vs temperature - 5.6v 5.6v temperature ( c) typical breakdown (v ) and clamping (v ) voltages v v b b c c o 20 15 10 5 -55 -40 -20 0 20 40 60 80 100 120 140 150 typical breakdown and clamping voltages vs temperature - 26v temperature ( c) typical breakdown (v ) and clamping (v ) voltages b c 26v v v b c ( ) ( ) 60 50 40 30 average 25 c reference +25 +20 +15 +10 +5 0 -5 -10 -15 -20 -25 -40 -20 0 20 40 60 80 100 120 140 temperature ( c) capacitance relative to 25 c typical capacitance vs temperature
10 transguard ? avx multilayer ceramic transient voltage suppressors repetitive peak current strikes transguard ? 1210 1.5j product 10% 8% 4% 2% 0% 6% 0 100 200 300 400 500 600 number of strikes change in breakdown voltage (%) vc121018j390 figure 3 30% 25% 15% 5% 10% 0% 20% 0 100 200 300 400 500 600 number of strikes change in breakdown voltage (%) vc08lc18a500 figure 4 repetitive peak current strikes staticguard 0805 0.1j product pulse degradation traditionally varistors have suffered degradation of electrical perfor- mance 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 both 5.6 and 14v transguard ? transient voltage suppressors with 150 amp peak 8 x 20s 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. the plots of typical breakdown voltage vs number of 150a pulses are shown below. typical performance curves (0603, 0805, 1206 & 1210 chip sizes) vc060305a150 vc060326a580 vc06lc18x500 100 80 60 40 20 0 02040 frequency (mhz) 60 80 100 capacitance change (%) vc080518c400 vc080514a300 vc080505c150 100 80 60 40 20 0 02040 frequency (mhz) 60 80 100 capacitance change (%) vc120648d101 vc12lc18a500 vc120614d300 100 80 60 40 20 0 02040 frequency (mhz) 60 80 100 capacitance change (%) transguard ? capacitance vs frequency 0603 transguard ? capacitance vs frequency 0805 transguard ? capacitance vs frequency 1206 10% 8% 4% 2% 0% 6% 0 100 200 300 400 500 600 number of strikes change in breakdown voltage (%) vc120618d400 vc120626d580 vc120614d300 vc120605d150 figure 1 repetitive peak current strikes transguard ? 0805 0.1j and 0.3j products 0% 5% 10% 15% 0 100 200 300 400 500 600 number of strikes change in breakdown voltage (%) vc080518c400 vc080518a400 figure 2 repetitive peak current strikes transguard ? 1206 0.4j product capacitance/frequency characteristics
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