axial lead transient voltage suppressors (tvs) revision october 18, 2013 1 / 4 @ un semiconductor co., ltd. 2013 specifications are subject to change without notice. please refer to www.unsemi.com.tw for current information. SAC series 5.0 to 50 v 500w low capacitance un semiconductor co., ltd. www.unsemi.com.tw the SAC series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. uni-directional u glass passivated chip u 500w peak pulse power capability with a 10/1000 s waveform, repetitive rate (duty cycle): 0.01% u low leakage u excellent clamping capability u very fast response time u rohs compliant tvs devices are ideal for the protection of i/o interfaces, v cc bus and other vulnerable circuits used in telecom, computer, industrial and consumer electronic applications. parameter symbol value unit peak pulse power dissipation with a 10/1000 s waveform (1) p ppm 500 watts peak pulse current with a 10/1000 s waveform.(fig.2) (1) i pp see next table amps power dissipation on infinite heat sink at t l =75 c (fig.2) p m(av) 3.0 watt operating junction and storage temperature range t j , t stg -55 to +150 c notes: 1. non-repetitive current pulse , per fig. 3 and derated above ta= 25 c per fig. 2 breakdown voltage v br @i t =1.0ma (v) part number reverse stand-off voltage v rwm (v) min maximum reverse leakage i r @v rwm ( a) maximum clamping voltage v c @i pp (v) maximum peak pulse current i pp (a) maximum junction capacitance @0v (pf) working inverse blocking voltage v wib (v) inverse blocking leakage current i ib @v wib (ma) peak inverse voltage v pib (v) SAC5.0 5.0 7.60 300 10.0 44.0 50 75 1 100 SAC6.0 6.0 7.90 300 11.2 41.0 50 75 1 100 SAC7.0 7.0 8.33 300 12.6 38.0 50 75 1 100 SAC8.0 8.0 8.89 100 13.4 36.0 50 75 1 100 SAC8.5 8.5 9.44 50 14.0 34.0 50 75 1 100 SAC10 10.0 11.10 5 16.3 29.0 50 75 1 100 SAC12 12.0 13.30 5 19.0 25.0 50 75 1 100 SAC15 15.0 16.67 5 23.6 20.0 50 75 1 100 SAC18 18.0 20.00 5 28.8 15.0 50 75 1 100 SAC22 22.0 24.40 5 35.4 14.0 50 75 1 100 SAC26 26.0 28.90 5 42.3 11.1 50 75 1 100 SAC30 30.0 33.30 5 48.6 10.0 50 75 1 100 SAC36 36.0 40.00 5 60.0 8.6 50 75 1 100 SAC45 45.0 50.00 5 77.0 6.8 50 150 1 200 SAC50 50.0 55.50 5 88.0 5.8 50 150 1 200 electrical characteristics (t a =25 unless otherwise noted) maximum ratings (t a =25 unless otherwise noted) description features applications
axial lead transient voltage suppressors (tvs) revision october 18, 2013 2 / 4 @ un semiconductor co., ltd. 2013 specifications are subject to change without notice. please refer to www.unsemi.com.tw for current information. SAC series 5.0 to 50 v 500w low capacitance un semiconductor co., ltd. www.unsemi.com.tw figure 1 - pe a k pulse power r a ting curve figure 3 - pulse w a veform ratings and characteristic curves ( t a =25 c unless otherwise noted ) figure 4 C ac line protection application figure 2 - pulse der a ting curve 150 100 50 0 i ppm - peak pulse current, % i rsm t r =10 sec peak value ippm half value i ppm (i ppm /2) t c 10/1000 sec. waveform as de ? ned by r.e.a 0 1.0 2.0 3.0 4.0 t j =25 c pulse width(td) is de ? ned as the point where the peak current decays to 50% of i ppm t - time (ms) t d - pulse width ( s ) p ppm - peak pulse power (kw) 1 0 0 0.1 1 0.1 1 10 100 1000 10000 10 td 0.5 p pk impulse exponential td td=7tp half sine p pk td square current waveforms p pk 0 25 50 75 100 125 150 175 100 80 60 40 20 0 t l - lead temperature( c) percentage of rated power ( i pp ) peak power (single pulse) tj=initial temperature power dissipation low capacitance tvs application note: device must be used with two units in parallel, opposite in polarity as shown in circuit for ac signal line protection.
axial lead transient voltage suppressors (tvs) revision october 18, 2013 3 / 4 @ un semiconductor co., ltd. 2013 specifications are subject to change without notice. please refer to www.unsemi.com.tw for current information. SAC series 5.0 to 50 v 500w low capacitance un semiconductor co., ltd. www.unsemi.com.tw temperature cycle jesd22-a104 weight 0.015 ounce, 0.4 gram pressure cooker jesd22-a102 case jedec do-204ac (do-15) molded plastic over glass passivated junction high temp. storage jesd22-a103 polarity color band denotes cathode except bipolar htrb jesd22-a108 terminal matte tin-plated leads, solderable per jesd22-b102d thermal shock jesd22-a106 reflow condition lead C free assembly -temperature min (t s(min) ) 150 c -temperature max (t s(max) ) 200 c pre heat - time (min to max) (t s ) 60 -180 seconds average ramp up rate ( liquidus temp t l ) to peak 3 c/second max t s(max) to tl - ramp-up rate 3 c/second max - temperature (t l ) (liquidus) 217 c reflow - time (min to max) (t s ) 60 -150 seconds peak temperature (t p ) 260 +0/-5 c time within 5 c of actual peak temperature (t p ) 20 -40 seconds ramp-down rate 6 c/second max time 25 c to peak temperature (t p ) 8 minutes max do not exceed 280 c inches millimeters dimensions min max min max a 1.000 - 25.40 - b 0.230 0.300 5.85 7.63 c 0.028 0.033 0.71 0.84 d 0.102 0.142 2.60 3.61 ramp-down preheat critical zone t l to t p time to peak temperature (t 25 to peak) t p t l t s(max) t s(min) 25 temperature ramp-up time physical specifications environmental specifications dimension s soldering parameters do-204ac (do-15) cathode band
axial lead transient voltage suppressors (tvs) revision october 18, 2013 4 / 4 @ un semiconductor co., ltd. 2013 specifications are subject to change without notice. please refer to www.unsemi.com.tw for current information. SAC series 5.0 to 50 v 500w low capacitance un semiconductor co., ltd. www.unsemi.com.tw part number component package quantity packaging option SACxxxxx do-204ac (do-15) 2000 box SAC v r voltage series packaging packaging dimensions unit: inches (millimeters) part numbering 2.56 (65.00) 0.20 0.020 (5.08 0.508) 0.25 (6.35)
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