single esd-protection diode in sod-523 vesd05a1b-02v vishay semiconductors document number: 83368 for technical questions, contact: esdprotection@vishay.com www.vishay.com rev. 1.0, 08-nov-10 1 marking (example only) bar = cathode marking x = date code y = type code (see table below) features ? single-line esd-protection ? capacitance typical c d = 12 pf (v r = 2.5 v, f = 1 mhz) ? leakage current i r < 1 a (v r = 5 v) ? esd-protection acc. iec 61000-4-2 20 kv contact discharge 30 kv air discharge ?e3 - sn ? compliant to rohs directive 2002/95/ec and in accordance to weee 2002/96/ec 19344 2027 8 1 2 20279 xy ordering information device name ordering code taped units per reel (8 mm tape on 7" reel) minimum order quantity vesd05a1b-02v VESD05A1B-02V-G-08 3000 3000 package data device name package name type code weight molding compound flammability rating moisture sensitivity level soldering conditions vesd05a1b-02v sod-523 . h 1.4 mg ul 94 v-0 msl level 1 (according j-std-020) 260 c/10 s at terminals absolute maximum ratings parameter test conditions symbol value unit peak pulse current acc. iec 61000-4-5, 8/20 s/single shot i ppm 3a peak pulse power acc. iec 61000-4-5, 8/20 s/single shot p pp 33 w esd immunity contact discharge acc. iec 61000-4-2; 10 pulses v esd 20 kv air discharge acc. iec 61000-4-2; 10 pulses 30 kv operating temperatur e junction temperature t j - 40 to + 125 c storage temperature t stg - 55 to + 150 c ** please see document ?vishay material category policy?: www.vishay.com/doc?99902
vesd05a1b-02v vishay semiconductors single esd-protection diode in sod-523 document number: 83368 for technical questions, contact: esdprotection@vishay.com www.vishay.com rev. 1.0, 08-nov-10 2 bias-mode (bidirectional asymmetrical protection mode) with the vesd05a1b-02v one signal- or data-lines (l1) can be protected against voltage transi ents. with pin 1 connected to ground and pin 2 connected to a signal- or data-line which has to be protected. as long as the voltage level on the data- or signal-line is between 0 v (ground level) and t he specified maximum reverse working voltage (v rwm ) the protection diode between data line and ground offers a high isolation to the ground line. the protection device behaves like an open switch. as soon as any positive transient voltage signal exceeds the break through voltage level of the protection diode, the diode becomes conductive and shorts the transient current to grou nd. now the protection device be haves like a closed switch. the clamping voltage (v c ) is defined by the breakthrough voltage (v br ) level plus the voltage drop at the series impedance (resistance and inductance) of the protection device. any negative transient signal will be clamped accordingly. the ne gative transient current is flowing in the forward direction o f the protection diode. the low forward voltage (v f ) clamps the negative transient close to the ground level. due to the different clamping levels in forward and reverse di rection the vesd05a1b-02v clamping behaviour is bidirectional and asymmetrical (bias). note ? ratings at 25 c, ambient temperature unless otherwi se specified. bias mode (between pin 1 and pin 2). electrical character istics vesd05a1b-02v parameter test conditions/remarks symbol min. typ. max. unit protection paths number of li nes which can be protected n channel - - 1 lines reverse working voltage at i r = 1 a v rwm 5- -v reverse current at v r = 5 v i r - 0.01 0.1 a reverse breakdown voltage at i r = 1 ma v br 66.87.5v reverse clamping voltage at i pp = 1 a v c -89.5v at i pp = i ppm = 3 a - 8.9 11 v forward clamping voltage at i pp = 0.2 a v f - 0.95 1.2 v at i pp = 1 a - 1.3 - v at i pp = i ppm = 3 a - 1.9 - v capacitance at v r = 0 v; f = 1 mhz c d -1923pf at v r = 2.5 v; f = 1 mhz - 12 - pf l1 202 8 0 1 2 ground bias
vesd05a1b-02v single esd-protection diode in sod-523 vishay semiconductors document number: 83368 for technical questions, contact: esdprotection@vishay.com www.vishay.com rev. 1.0, 08-nov-10 3 package dimensions in millimeter s (inches): sod-523 foot print recommendation: rev. h - date: 13. oct. 2010 16864 document no.: s8-v-3880.02-001 (4) 0.4 (0.016) 1.45 (0.057) 0.35 (0.014) 1.3 (0.051) 1.1 (0.043) 0.35 (0.014) 0.18 (0.007) 1.7 (0.067) 1.5 (0.059) 0.20 (0.008) 0.08 (0.003) 0.9 (0.035) 0.7 (0.028) 0.7 (0.028) 0.5 (0.020) 0.1 (0.004) max.
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