transient voltage suppressors array for esd protection revision january 06, 2014 1 / 3 @ un semiconductor co., ltd. 2014 specifications are subject to change without notice. please refer to www.unsemi.com.tw for current information. esdxxv35t-4l series un semiconductor co., ltd. www.unsemi.com.tw sot-353 the esdxxv35t-4l is designed to protect voltage 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 where board space is at a premium. u 100 watts peak pulse power per line (tp=8/20 s) u protects four i/o lines u low clamping voltage u working voltages : 3.3, 5.0, 12v u low leakage current u iec61000-4-2 (esd) 15kv (air), 8kv (contact) u iec61000-4-4 (eft) 40a (5/50 s) u iec61000-4-5 (lightning) 3a (8/20 s) u cellular handsets and accessories u cordless phones u personal digital assistants (pda s) u notebooks and handhelds u portable instrumentation u peripherals u mp3 players u sot-353 package u molding compound flammability rating : ul 94v-0 u weight 6.0 milligrams (approximate) u quantity per reel : 3,000pcs u reel size : 7 inch u lead finish : lead free symbol parameter value units p pp peak pulse power (tp=8/20 s waveform) 100 w t l lead soldering temperature 260 (10sec) o c t stg storage temperature range -55 to +150 o c t j operating temperature range -55 to +150 o c air discharge 15 iec61000-4-2 (esd) contact discharge 8 kv iec61000-4-4 (eft) 40 a iec61000-4-5 (lightning) 3 a mechanical characteristics d escription feature functional dia gram applications m echanical characteristics
transient voltage suppressors array for esd protection revision january 06, 2014 2 / 3 @ un semiconductor co., ltd. 2014 specifications are subject to change without notice. please refer to www.unsemi.com.tw for current information. esdxxv35t-4l series un semiconductor co., ltd. www.unsemi.com.tw v c part number device marking v rwm (v) (max.) v b (v) (min.) i t (ma) v c @1a (max.) (max.) (@a) i r ( a) (max.) c (pf) (typ.) esd3.3v35t-4l wb 3.3 4.5 1 8.0 15.3 4 5 40 esd05v35t-4l we 5 6 1 9.8 18.5 3 2 30 esd12v35t-4l wh 12 13.3 1 17 21.0 2 1 25 fig1. 8/20 s pulse waveform fig2. esd pulse waveform (according to iec 61000-4-2) fig3. esd clamping (+8kv contac per iec61000-4-2) fig4. esd clamping (-8kv contac per iec61000-4-2) electrical characteristics ( @ 25 unless otherwise specified ) characteristic curves 0 5 10 15 20 25 30 120 t r 100 80 60 40 20 0 peak value i pp t d =t i pp /2 test waveform parameters t r =8 s t d =20 s t - time ( s ) i pp - peak pulse current - % of i pp 60ns 10% percent of peak pulse current % 30ns tr = 0.7~1ns time (ns) 90% 100%
transient voltage suppressors array for esd protection revision january 06, 2014 3 / 3 @ un semiconductor co., ltd. 2014 specifications are subject to change without notice. please refer to www.unsemi.com.tw for current information. esdxxv35t-4l series un semiconductor co., ltd. www.unsemi.com.tw inches millimeters symbol min. nom. max. min. nom. max. a 0.031 0.037 0.043 0.80 0.95 1.10 a1 0.000 0.002 0.004 0.00 0.05 0.10 a3 0.08 ref 0.2 ref b 0.004 0.008 0.012 0.10 0.21 0.30 c 0.004 0.005 0.010 0.10 0.14 0.25 d 0.070 0.078 0.086 1.80 2.00 2.20 e 0.045 0.049 0.053 1.15 1.25 1.35 e 0.026 bsc 0.65 bsc l 0.004 0.008 0.012 0.10 0.20 0.30 h e 0.078 0.082 0.086 2.00 2.10 2.20 symbol inches millimeters c 0.0748 1.9 g 0.055 1.40 p 0.025 0.65 p1 0.051 1.30 x 0.0157 0.40 y 0.019 0.50 z 0.0945 2.4 soldering footprint so t - 353 package outline & dimensions
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