transient voltage suppressors for esd protection general description sensitive components from esd and transient voltage events. excellent clamping capability, low leakage, and fast response time, make these parts ideal for esd protection on designs wher e board space is at a premium. features ? small body outline dimensions ? low body height ? peak power up to 200 watts @ 8 x 20 _s pulse ? low leakage current ? response time is typically < 1 ns ? esd rating of class 3 (> 16 kv) per human body model ? iec61000 ? 4 ? 2 level 4 esd protection ? iec61000 ? 4 ? 4 level 4 eft protection applications ? cellular phones ? portable devices ? digital cameras ? power supplies absolute ratings (t amb =25 c ) symbol parameter value units p pp peak pulse power (t p = 8/20 s) 200 w t l maximum lead temperature for soldering during 10s 260 c t stg storage temperature range -55 to +155 c t op operating temperature range -40 to +125 c t j maximum junction temperature 150 c iec61000-4-2 (esd) air discharge contact discharge 15 8 kv iec61000-4-4 (eft) 40 a esd voltage per human body model 16 kv sod? 323 1 2 lesd3z5.0cmt1g leshan radio company, ltd. device marking shipping ordering information the lesd3z5.0cmt1g is designed to protect voltage lesd3z5.0cmt1g 3m 3000/tape & reel s-lesd3z5.0cmt1g s- prefix for automotive and other applications requiring unique site and control change requirements; aec-q101 qualified and ppap capable. ? s-lesd3z5.0cmt1g rev. o 1/4
electrical parameter symbol parameter i pp maximum reverse peak pulse current v c clamping voltage @ i pp v rwm working peak reverse voltage i r maximum reverse leakage current @ v rwm i t test current v br breakdown voltage @ i t electrical characteristics ratings at 25c ambient temperature unless ot herwise specified.vf = 0.9v at if = 10ma v rwm (v) i r (ua) @ v rwm v br (v)@ i t (note 1) i t v c (v) @ i pp =5 a* v c (v) @ max i pp * i pp (a)* p pk (w)* c (pf) device max max min ma typ max max max typ 5.0 1 5.6 1.0 11.6 18.6 9.4 174 25 *surge current waveform per figure 1. 1. v br is measured with a pluse test current i t at an ambient temperature of 25 ? fig1. pulse waveform lesd3z5.0cmt1g,s-lesd3z5.0cmt1g leshan radio company, ltd. lesd3z5.0cmt1g rev. o 2/4
fig2.power derating application note electrostatic discharge (esd) is a major cause of failure in electronic systems. transient voltage suppressors (tvs) are an ideal choice for esd prot ection. they are capable of clamping the incoming transient to a low enough level su ch that damage to the protected semiconductor is prevented. surface mount tvs offers the bes t choice for minimal lead induct ance. they serve as parallel protection elements, connected between the signal lines to ground. as the transient rises above the operating voltage of the device, the tvs becomes a low impedance path diverting the transient d evel protection of esd sensitive semiconductor components. the tiny sod-323 package allows design flexibility in the design of high density boards where the space saving is at a premium. this enables to shorten the routing and contributes to hardening against esd. leshan radio company, ltd. current to ground. the lesd3z5.0cmt1g is the ideal boar rev. o 3/4 lesd3z5.0cmt1g,s-lesd3z5.0cmt1g
leshan radio company, ltd. k a d 1 2 b c e 0.63 0.02'' 0.83 0.033'' 1.60 0.063" 2.85 0.112'' mm inches h j sod - 323 notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: millimeters min max min max 1.60 1.80 0.063 0.071 1.15 1.35 0.045 0.053 0.80 1.00 0.031 0.039 0.25 0.40 0.010 0.016 0.15 ref 0.006 ref 0.00 0.10 0.000 0.004 0.089 0.177 0.0035 0.0070 2.30 2.70 0.091 0.106 millimeters dim a b c d e h j k inches pin: 1. cathode 2. anode rev. o 4/4 lesd3z5.0cmt1g,s-lesd3z5.0cmt1g
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