dimensions in inches and (millimeters) sma/do-214ac features for surface mounted application low profile package built-in strain relief glass passivated junction excellent clamping capability fast response time: typically less than 1.0ps from 0 volt to bv min. typical i r less than 1 a above 10v high temperature so ldering guaranteed: 260 o c / 10 seconds at terminals plastic material used carries underwriters laboratory flammability classification 94v-0 400 watts peak pulse power capabilit y with a 10 x 1000 us waveform by 0.01% duty cycle (300w above 78v). mechanical data case: molded plastic terminals: pure tin plated lead free, polarity: indicated by cathode band standard packaging: 12mm tape weight: 0.064 gram maximum ratings and electrical characteristics rating at 25 o c ambient temperature unless otherwise specified. type number symbol value units p eak p ower d issipation at t a =25 o c, tp=1ms( n ote 1) p pk minimum 400 watts steady state power dissipation pd 1 watts peak forward surge current, 8.3 ms single half sine-wave superimposed on rated load (jedec method) (note 2, 3) i fsm 40.0 amps maximum instantaneous forward voltage at 25.0a for unidirectional only v f 3.5 volts operating and storage temperature range t j , t stg -55 to + 150 o c notes: 1. non-repetitive current pulse per fig. 3 and derated above t a =25 o c per fig. 2. 2. mounted on 5.0mm 2 (.013 mm thick) copper pads to each terminal. 3. 8.3ms single half sine-wave or equival ent square wave, duty cycle=4 pulses per minute maximum. devices for bipolar applications 1. for bidrectional use c or ca suffix for types smaj5.0 through types smaj188. 2. electrical characteristics apply in both directions. smaj series 400watts surface mount transient voltage suppressor http://www.luguang.cn mail:lge@luguang.cn
ratings and characteristic curves (smaj series) fig.4- maximum non-repetitive peak forward surge current peak forward surge current. (a) 1 10 100 0 10 40 30 20 50 number of cycles at 60hz 8.3ms single half sine wave jedec method tj=tj max. fig.5- typical junction capacitance cj, junction capacitance, pf 1 10 200 100 10 100 1000 10000 v(br), breakdown voltage. (v) tj=25 c f=1.0mhz vsig=50mvp-p 0 measured at zero bias measured at stand-off voltage,v wm fig.1- peak pulse power rating curve pppm, peak pulse power, kw 0.1 s 1.0 s 10 s 100 s 1.0ms 10ms 0.1 1 10 100 td. pulse width, sec. 0.2" sq 5.0mm copper pad areas 2 non-repetitive pulse waveform shown in fig. 3 t =25 c a 0 fig.3- pulse waveform clamping power 0 1.0 2.0 3.0 4.0 0 50 150 100 t, time, ms lppm, peak pulse current % pulse width (td) is defined as the point where the peak current decays to 50% of lppm tr=10 sec. 10/1000 sec. waveform as defined by r.e.a. td 2 peak value lppm half value- lpp fig.2- pulse derating curve peak pulse power (pppm) or current (lpp) derating in percentage, % 0 25 50 75 100 125 150 175 200 0 25 50 75 100 ta, ambient temperature. c o smaj series 400watts surface mount transient voltage suppressor http://www.luguang.cn mail:lge@luguang.cn
electrical characteristics (ta=25 o c unless otherwise noted) maximum maximum maximum device working peak breakdown voltage test clamping peak pulse reverse device marking reverse v( br ) (volts) current voltage at i ppm surge current leakage code voltage at i t i t v c (volts) i ppm at v wm v wm (volts) min. max. (ma) (note 5) (note 5)(amps) i d (ua) smaj5.0 ad 5.0 6.40 7.30 10 9.6 41.7 800 smaj5.0a ae 5.0 6.40 7.00 10 9.2 43.5 800 smaj6.0 af 6.0 6.67 8.15 10 11.4 35.1 800 smaj6.0a ag 6.0 6.67 7.37 10 10.3 38.8 800 smaj6.5 ah 6.5 7.22 8.82 10 12.3 32.5 500 smaj6.5a ak 6.5 7.22 7.98 10 11.2 35.7 500 smaj7.0 al 7.0 7.78 9.51 10 13.3 30.1 200 smaj7.0a am 7.0 7.78 8.60 10 12.0 33.3 200 smaj7.5 an 7.5 8.33 10.3 1.0 14.3 28.0 100 smaj7.5a ap 7.5 8.33 9.21 1.0 12.9 31.0 100 smaj8.0 aq 8.0 8.89 10.9 1.0 15.0 26.7 50.0 smaj8.0a ar 8.0 8.89 9.83 1.0 13.6 29.4 50.0 smaj8.5 as 8.5 9.44 11.5 1.0 15.9 25.2 10.0 smaj8.5a at 8.5 9.44 10.4 1.0 14.4 27.8 10.0 smaj9.0 au 9.0 10.0 12.2 1.0 16.9 23.7 5.0 smaj9.0a av 9.0 10.0 11.1 1.0 15.4 26.0 5.0 smaj10 aw 10 11.1 13.6 1.0 18.8 21.3 5.0 smaj10a ax 10 11.1 12.3 1.0 17.0 23.5 5.0 smaj11 ay 11 12.2 14.9 1.0 20.1 19.9 5.0 smaj11a az 11 12.2 13.5 1.0 18.2 22.0 5.0 smaj12 bd 12 13.3 16.3 1.0 22.0 18.2 5.0 smaj12a be 12 13.3 14.7 1.0 19.9 20.1 5.0 smaj13 bf 13 14.4 17.6 1.0 23.8 16.8 5.0 smaj13a bg 13 14.4 15.9 1.0 21.5 18.6 5.0 smaj14 bh 14 15.6 19.1 1.0 25.8 15.5 5.0 smaj14a bk 14 15.6 17.2 1.0 23.2 17.2 5.0 smaj15 bl 15 16.7 20.4 1.0 26.9 14.9 5.0 smaj15a bm 15 16.7 18.5 1.0 24.4 16.4 5.0 smaj16 bn 16 17.8 21.8 1.0 28.8 13.9 5.0 smaj16a bp 16 17.8 19.7 1.0 26.0 15.4 5.0 smaj17 bq 17 18.9 23.1 1.0 30.5 13.1 5.0 smaj17a br 17 18.9 20.9 1.0 27.6 14.5 5.0 smaj18 bs 18 20.0 24.4 1.0 32.2 12.4 5.0 smaj18a bt 18 20.0 22.1 1.0 29.2 13.7 5.0 smaj20 bu 20 22.2 27.1 1.0 35.8 11.2 5.0 smaj20a bv 20 22.2 24.5 1.0 32.4 12.3 5.0 smaj22 bw 22 24.4 29.8 1.0 39.4 10.2 5.0 smaj22a bx 22 24.4 26.9 1.0 35.5 11.3 5.0 smaj24 by 24 26.7 32.6 1.0 43.0 9.3 5.0 smaj24a bz 24 26.7 29.5 1.0 38.9 10.3 5.0 smaj26 cd 26 28.9 35.3 1.0 46.6 8.6 5.0 smaj26a ce 26 28.9 31.9 1.0 42.1 9.5 5.0 smaj28 cf 28 31.1 38.0 1.0 50.0 8.0 5.0 smaj28a cg 28 31.1 34.4 1.0 45.4 8.8 5.0 smaj30 ch 30 33.3 40.7 1.0 53.5 7.5 5.0 smaj30a ck 30 33.3 36.8 1.0 48.4 8.3 5.0 smaj33 cl 33 36.7 44.9 1.0 59.0 6.8 5.0 smaj33a cm 33 36.7 40.6 1.0 53.3 7.5 5.0 smaj36 cn 36 40.0 48.9 1.0 64.3 6.2 5.0 smaj36a cp 36 40.0 44.2 1.0 58.1 6.9 5.0 smaj40 cq 40 44.4 54.3 1.0 71.4 5.6 5.0 smaj40a cr 40 44.4 49.1 1.0 64.5 6.2 5.0 smaj43 cs 43 47.8 58.4 1.0 76.7 5.2 5.0 smaj43a ct 43 47.8 52.8 1.0 69.4 5.8 5.0 smaj series 400watts surface mount transient voltage suppressor http://www.luguang.cn mail:lge@luguang.cn
electrical characteristics (ta=25 o c unless otherwise noted) maximum maximum maximum device working peak breakdown voltage test clamping peak pulse reverse device marking reverse v( br ) (volts) current voltage at i ppm surge current leakage code voltage at i t i t v c (volts) i ppm at v wm v wm (volts) min. max. (ma) (note 5) (note 5)(amps) i d (ua) smaj45 cu 45 50.0 61.1 1.0 80.3 5.0 5.0 smaj45a cv 45 50.0 55.3 1.0 72.7 5.5 5.0 smaj48 cw 48 53.3 65.1 1.0 85.5 4.7 5.0 smaj48a cx 48 53.3 58.9 1.0 77.4 5.2 5.0 smaj51 cy 51 56.7 69.3 1.0 91.1 4.4 5.0 smaj51a cz 51 56.7 62.7 1.0 82.4 4.9 5.0 smaj54 rd 54 60.0 73.3 1.0 96.3 4.2 5.0 smaj54a re 54 60.0 66.3 1.0 87.1 4.6 5.0 smaj58 rf 58 64.4 78.7 1.0 103 3.9 5.0 smaj58a rg 58 64.4 71.2 1.0 93.6 4.3 5.0 smaj60 rh 60 66.7 81.5 1.0 107 3.7 5.0 smaj60a rk 60 66.7 73.7 1.0 96.8 4.1 5.0 smaj64 rl 64 71.1 86.9 1.0 114 3.5 5.0 smaj64a rm 64 71.1 78.6 1.0 103 3.9 5.0 smaj70 rn 70 77.8 95.1 1.0 125 3.2 5.0 smaj70a rp 70 77.8 86.0 1.0 113 3.5 5.0 smaj75 rq 75 83.3 102 1.0 134 3.0 5.0 smaj75a rr 75 83.3 92.1 1.0 121 3.3 5.0 smaj78 rs 78 86.7 106 1.0 139 2.9 5.0 smaj78a rt 78 86.7 95.8 1.0 126 3.2 5.0 smaj85 ru 85 94.4 115 1.0 151 2.0 5.0 smaj85a rv 85 94.4 104 1.0 137 2.2 5.0 smaj90 rw 90 100 122 1.0 160 1.9 5.0 smaj90a rx 90 100 111 1.0 146 2.1 5.0 smaj100 ry 100 111 136 1.0 179 1.7 5.0 smaj100a rz 100 111 123 1.0 162 1.9 5.0 smaj110 sd 110 122 149 1.0 196 1.6 5.0 smaj110a se 110 122 135 1.0 177 1.7 5.0 smaj120 sf 120 133 163 1.0 214 1.4 5.0 smaj120a sg 120 133 147 1.0 193 1.6 5.0 smaj130 sh 130 144 176 1.0 231 1.3 5.0 smaj130a sk 130 144 159 1.0 209 1.5 5.0 smaj150 sl 150 167 204 1.0 266 1.1 5.0 smaj150a sm 150 167 185 1.0 243 1.3 5.0 smaj160 sn 160 178 218 1.0 287 1.0 5.0 smaj160a sp 160 178 197 1.0 259 1.2 5.0 smaj170 sq 170 189 231 1.0 304 1.0 5.0 smaj170a sr 170 189 209 1.0 275 1.1 5.0 s maj188 st 188 209 255 1.0 344 0.9 5.0 s maj188a s s 188 209 231 1.0 328 0.91 5.0 notes: 1. non-repetitive curr ent pulse, per fig. 3 and derated above t a =25 o c per fig. 2 2. mounted on 5.0mm 2 copper pads to each terminal 3. lead temperature at tl=75 o c 4. measured on 8.3ms single half sine-w ave duty cycle=4 pulses per minutes maximum 5. peak pulse power wa veform is 10/1000 us 6. for bi-directional devices having vr of 10 volts and un der, the ir limit is double. smaj series 400watts surface mount transient voltage suppressor http://www.luguang.cn mail:lge@luguang.cn
this device is designed specifically for application notes: transiient voltage suppression from threats generated by esd for board levelload r ecommended pad layout switching components. the pad dimensions should be 0.010" longer than the contact size in the lead axis. this allows a solder fillet the wide leads assure a large surface contact to form, see figure below. contact factory for soldering for good heat disipation, and a low resistance methods. path for surge current flow to ground. this series is designed to optimize board space and for use with surface mount technology automated assembly equipment. they can be easily mounted on printed circuit boards and ceramic substrates to protect sensitive components from transient voltage damage. dimensions in inches and (millimeters) smaj series 400watts surface mount transient voltage suppressor http://www.luguang.cn mail:lge@luguang.cn
|
