1 glass encapsulated transguard ? automotive series general description the glass encapsulated transguard ? automotive series are zinc oxide (zno) based ceramic semiconductor devices with non-linear, bi-directional voltage-current characteristics. they have the advantage of offering bi-directional overvoltage protection as well as emi/rfi attenuation in a single smt package. the automotive series high current and high energy handling capability make them well suited for protection against automotive related transients. these large case size parts extend transguard range into high energy applications. in addition the glass encapsulation provides enhanced resistance against harsh environment or process such as acidic environment, salts or chlorite flux. physical dimensions: mm (inches) size (eia) length (l) width (w) max thickness (t) land length (t) 1210 3.200.20 2.490.20 1.70 0.14 max. (0.1260.008) (0.0980.008) (0.067) (0.045 max.) 1812 4.500.30 3.200.30 2.00 1.00 max. (0.1770.012) (0.1260.012) (0.079) (0.040 max.) 2220 5.700.40 5.000.40 2.50 1.00 max. (0.2240.016) (0.1970.016) (0.098) (0.040 max.) features ? high reliability ? high energy absorption (load dump) ? high current handling ? bi-directional protection ? emi/rfi attenuation in off-state ? multi-strike capability ? sub 1ns response to esd strike ? aec q200 qualified applications ? various automotive applications ? internal combustion engine (ice) vehicles ? hybrid electric vehicles (hev) ? plug-in hybrid electric vehicles (phev) ? commercial vehicles ? sensors ? dc motor ? lin bus ? relays ? ecu ? and more ? applications where glass encapsulation is needed for harsh environment/acid- resistance general characteristics operating temperature: -55oc to 125oc v varistor g glass encapsulate chip as automotive series 1812 chip size 1210 1812 2220 16 working voltage 16 = 16vdc 34 = 34vdc 65 = 65vdc p engergy rating s = 2.0j p = 2.9j u = 5.0j y = 7.2-12j 400 clamping voltage 400 = 42v 770 = 77v 131 = 135v r package d = 7" reel r = 7" reel t = 13" reel p termination p = ni/sn plated how to order
2 glass encapsulated transguard ? automotive series v w (dc) dc working voltage [v] v w (ac) ac working voltage [v] v b typical breakdown votage [v @ 1ma dc , 25c] v c clamping voltage [v @ i ivc ] i vc test current for v c [a, 8x20s] i l maximum leakage current at the working voltage, 25c [a] e t transient energy rating [j, 10x1000s] e ld load dump energy (x10) [j] i p peak current rating [a, 8x20s] cap typical capacitance [pf] @ frequency specified and 0.5v rms , 25c, m = 1mhz, k = 1khz v jump jump start [v, 5 min] p diss power dissipation [w] avx pn v w (dc) v w (ac) v b v c i vc i l e t e ld i p cap freq v jump p diss, max VGAS181216P400 16 11 24.510% 42 5 10 2.9 10 1000 5000 k 27.5 0.07 vgas222016y400 16 11 24.510% 42 10 10 7.2 25 1500 13000 k 25.5 0.1 vgas121034s770 34 30 47.010% 77 2.5 15 2 3 400 1000 k 48 0.04 vgas181234u770 34 30 47.010% 77 5 15 5 6.1 800 1500 k 48 0.08 vgas222034y770 34 30 47.010% 77 10 15 12 25 2000 6300 k 48 0.24 vgas121065p131 65 50 82.010% 135 2.5 15 2.7 C 350 600 k 48 0.05 electrial characteristics VGAS181216P400 0.5 1 4 100ms 46 52 72 200ms 37 41 59 400ms 32 35 51 vgas222016y400 0.5 1 4 100ms 53 60 77 200ms 50 55 73 400ms 47 50 66 12v systems automotive series ? load dump test according to iso dp7637 rev 2 pulse 5 when using the test method indicated below, the amount of energy dissipated by the varistor must not exceed the load dump energy value specified in the product table. automotive load dump pulse (according to iso 7637 pulse 5) voltage (v) energy (joules) time (msec)
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