creat by art ? low profile package ? built-in strain relief ? glass passivated junction ? excellent clamping capability ? typical i r less than 1ua above 10v SMAJ5.0 sma 1.8k / 7" reel r3 maximum ratings and el ectrical characteristics rating at 25 ambient temperature unless otherwise specified. symbol unit p pk watts p d watts t j , t stg SMAJ series 400 watts suface mount transient voltage suppressor sma/do-214ac features ? for surface mounted application ? fast response time: typically less than 1.0ps from 0 volt to bv min ? high temperature soldering guaranteed: 260 / 10 seconds at terminals ? plastic material used carried underwriters laboratory flammability classification 94v-0 ? 400 watts peak pulse power capability with a 10 / 1000 us waveform (300w above 78v) ? green compound with suffix "g" on packing code & prefix "g" on datecode mechanical data ? case: molded plastic ? terminals: pure tin plated, lead free ? polarity: indicated by cathode band ? packaging: 12mm tape per eia std rs-481 ? weight: 0.064 gram ordering information (example) part no. package packing packing code packing code (green) r3g type number value peak power dissipation at t a =25 , tp=1ms(note 1) 400 steady state power dissipation 1 peak forward surge current, 8.3ms single half sine-wave superimposed on rated load (jedec method) (note 2) i fsm 40 amps maximum instantaneous forward voltage at 25.0a for unidirectional only v f 3.5 volts 1. for bidrectional use c or ca suffix for types SMAJ5.0 through types SMAJ188 2. electrical characterstics apply in both directions version:i13 operating and storage temperature range -55 to +150 note 1: non-repetitive current pulse per fig. 3 and derated above t a =25 per fig. 2 note 2: mounted on 5 x 5mm copper pads to each terminal devices for bipolar applications
version:i13 ratings and characteristic curves (SMAJ series) 0 25 50 75 100 125 0 25 50 75 100 125 150 175 200 peak pulse power(p pp ) or current (i pp ) a derating in percentage (%) t a , ambient temperature ( o c) fig.2 pulse derating curve 0 10 20 30 40 50 1 10 100 ifsm, peak forward surge current (a) number of cycles at 60 hz fig. 4 maximum non-repetitive forward surge current unidirectional only 8.3ms single half sine wave jedec method 0 20 40 60 80 100 120 140 00.511.522.533.54 peak pulse current (%) t, time ms fig. 3 clamping power pulse waveform td peak value ippm tr=10usec half value-ippm/2 10/1000usec, waveform as defined by r.e.a. pulse width(td) is defined as the point where the peak current decays to 50% of ippm 10 100 1000 10000 1 10 100 cj, junction capacitance (pf) a v( br ), breakdown voltage (v) fig. 5 typical junction capacitance ta=25 f=1.0mhz vsig=50mvp-p measured at zero bias measured at stand-off voltage,vwm 0.1 1 10 100 0.1 1 10 100 1000 10000 p ppm , peak pulse power, kw tp, pulse width, (us) fig. 1 peak pulse power rating curve non-repetitive pulse waveform shown in fig.3 ta = 25
test maximum current reverse leakage it @ v wm min max (ma) id (ua) SMAJ5.0 ad 5 6.4 7.3 10 9.6 41.7 800 SMAJ5.0a ae 5 6.4 7 10 9.2 43.5 800 SMAJ6.0 af 6 6.67 8.15 10 11.4 35.1 800 SMAJ6.0a ag 6 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 7.78 9.51 10 13.3 30.1 200 SMAJ7.0a am 7 7.78 8.6 10 12.0 33.3 200 SMAJ7.5 an 7.5 8.33 10.30 1 14.3 28.0 100 SMAJ7.5a ap 7.5 8.33 9.21 1 12.9 31.0 100 SMAJ8.0 aq 8 8.89 10.9 1 15.0 26.7 50 SMAJ8.0a ar 8 8.89 9.83 1 13.6 29.4 50 SMAJ8.5 as 8.5 9.44 11.5 1 15.9 25.2 10 SMAJ8.5a at 8.5 9.44 10.4 1 14.4 27.8 10 SMAJ9.0 au 9 10 12.2 1 16.9 23.7 5 SMAJ9.0a av 9 10 11.1 1 15.4 26.0 5 SMAJ10 aw 10 11.1 13.6 1 18.8 21.3 5 SMAJ10a ax 10 11.1 12.3 1 17.0 23.5 5 SMAJ11 ay 11 12.2 14.9 1 20.1 19.9 1 SMAJ11a az 11 12.2 13.5 1 18.2 22.0 1 SMAJ12 bd 12 13.3 16.3 1 22.0 18.2 1 SMAJ12a be 12 13.3 14.7 1 19.9 20.1 1 SMAJ13 bf 13 14.4 17.6 1 23.8 16.8 1 SMAJ13a bg 13 14.4 15.9 1 21.5 18.6 1 SMAJ14 bh 14 15.6 19.1 1 25.8 15.5 1 SMAJ14a bk 14 15.6 17.2 1 23.2 17.2 1 SMAJ15 bl 15 16.7 20.4 1 26.9 14.9 1 SMAJ15a bm 15 16.7 18.5 1 24.4 16.4 1 SMAJ16 bn 16 17.8 21.8 1 28.8 13.9 1 SMAJ16a bp 16 17.8 19.7 1 26.0 15.4 1 SMAJ17 bq 17 18.9 23.1 1 30.5 13.1 1 SMAJ17a br 17 18.9 20.9 1 27.6 14.5 1 SMAJ18 bs 18 20 24.4 1 32.2 12.4 1 SMAJ18a bt 18 20 22.1 1 29.2 13.7 1 SMAJ20 bu 20 22.2 27.1 1 35.8 11.2 1 SMAJ20a bv 20 22.2 24.5 1 32.4 12.3 1 SMAJ22 bw 22 24.4 29.8 1 39.4 10.2 1 SMAJ22a bx 22 24.4 26.9 1 35.5 11.3 1 SMAJ24 by 24 26.7 32.6 1 43.0 9.3 1 SMAJ24a bz 24 26.7 29.5 1 38.9 10.3 1 SMAJ26 cd 26 28.9 35.3 1 46.6 8.6 1 SMAJ26a ce 26 28.9 31.9 1 42.1 9.5 1 SMAJ28 cf 28 31.1 38 1 50.0 8.0 1 SMAJ28a cg 28 31.1 34.4 1 45.4 8.8 1 SMAJ30 ch 30 33.3 40.7 1 53.5 7.5 1 SMAJ30a ck 30 33.3 36.8 1 48.4 8.3 1 SMAJ33 cl 33 36.7 44.9 1 59.0 6.8 1 SMAJ33a cm 33 36.7 40.6 1 53.3 7.5 1 SMAJ36 cn 36 40 48.9 1 64.3 6.2 1 SMAJ36a cp 36 40 44.2 1 58.1 6.9 1 version:i13 electrical characteristics (ta=25 unless otherwise noted) device device marking code working peak reverse voltage v wm breakdown voltage maximum clamping voltage at ippm vc(v) (note5) maximum peak pulse surge current i ppm (a)(note5) vbr (v) at i t
test maximum current reverse leakage it @ v wm min max (ma) id (ua) SMAJ40 cq 40 44.4 54.3 1 71.4 5.6 1 SMAJ40a cr 40 44.4 49.1 1 64.5 6.2 1 SMAJ43 cs 43 47.8 58.4 1 76.7 5.2 1 SMAJ43a ct 43 47.8 52.8 1 69.4 5.8 1 SMAJ45 cu 45 50 61.1 1 80.3 5.0 1 SMAJ45a cv 45 50 55.3 1 72.7 5.5 1 SMAJ48 cw 48 53.3 65.1 1 85.5 4.7 1 SMAJ48a cx 48 53.3 58.9 1 77.4 5.2 1 SMAJ51 cy 51 56.7 69.3 1 91.1 4.4 1 SMAJ51a cz 51 56.7 62.7 1 82.4 4.9 1 SMAJ54 rd 54 60 73.3 1 96.3 4.2 1 SMAJ54a re 54 60 66.3 1 87.1 4.6 1 SMAJ58 rf 58 64.4 78.7 1 103 3.9 1 SMAJ58a rg 58 64.4 71.2 1 93.6 4.3 1 SMAJ60 rh 60 66.7 81.5 1 107 3.7 1 SMAJ60a rk 60 66.7 73.7 1 96.8 4.1 1 SMAJ64 rl 64 71.1 86.9 1 114 3.5 1 SMAJ64a rm 64 71.1 78.6 1 103 3.9 1 SMAJ70 rn 70 77.8 95.1 1 125 3.2 1 SMAJ70a rp 70 77.8 86 1 113 3.5 1 SMAJ75 rq 75 83.3 102 1 134 3.0 1 SMAJ75a rr 75 83.3 92.1 1 121 3.3 1 SMAJ78 rs 78 86.7 106 1 139 2.9 1 SMAJ78a rt 78 86.7 95.8 1 126 3.2 1 SMAJ85 ru 85 94.4 115 1 151 2 1 SMAJ85a rv 85 94.4 104 1 137 2.2 1 SMAJ90 rw 90 100 122 1 160 1.9 1 SMAJ90a rx 90 100 111 1 146 2.1 1 SMAJ100 ry 100 111 136 1 179 1.7 1 SMAJ100a rz 100 111 123 1 162 1.9 1 SMAJ110 sd 110 122 149 1 196 1.6 1 SMAJ110a se 110 122 135 1 177 1.7 1 SMAJ120 sf 120 133 163 1 214 1.4 1 SMAJ120a sg 120 133 147 1 193 1.6 1 SMAJ130 sh 130 144 176 1 231 1.3 1 SMAJ130a sk 130 144 159 1 209 1.5 1 SMAJ150 sl 150 167 204 1 266 1.1 1 SMAJ150a sm 150 167 185 1 243 1.3 1 SMAJ160 sn 160 178 218 1 287 1 1 SMAJ160a sp 160 178 197 1 259 1.2 1 SMAJ170 sq 170 189 231 1 304 1 1 SMAJ170a sr 170 189 209 1 275 1.1 1 SMAJ188 st 188 209 255 1 344 0.9 1 SMAJ188a ss 188 209 231 1 328 0.91 1 notes: 1. non-repetitive current pulse, per fig. 3 and derated above t a =25 per fig. 2 2. mounted on 5 x 5mm copper pads to each terminal 3. lead temperature at t l =75 4. measure on 8.3ms single half sine-wave duty cycle=4 pulses per minutes maximum 5. peak pulse power waveform is 10/1000 us 6. for bi-directional devices having v r of 10 volts and under, the i r limit is double. version:i13 maximum clamping voltage at ippm vc(v) (note5) maximum peak pulse surge current i ppm (a)(note5) electrical characteristics (ta=25 unless otherwise noted) device device marking code breakdown voltage vbr (v) at i t working peak reverse voltage v wm
sma r3 sma r2 sma m2 folded sma f3 folded sma f2 folded sma f4 c sma e3 c sma e2 tape & reel specification abcdngt 2.0 0.4 +0.5;-0.2 min 1.0 +0.8;-0 max 7" 12mm 178 1.9 13 21 62 12.2 14.6 abcdngt max 0.5 0.5 min 0.5 +2.0;-0 max 13" 12mm 330 2 13 20.2 75 12.4 18.4 unit (mm) 7.5k / 13" reel e2g ordering information part no. package packing packing code packing code (green) r2g 1.8k / 7" reel 7.5k / 13" reel f2g 1.8k / 7" reel 7.5k / 13" plastic reel m2g 7.5k / 13" plastic reel f4g e3g reel size tape size note: "x" is device code from "5.0" thru "188". reel size tape size SMAJxx (note) 1.8k / 7" reel r3g 7.5k / 13" reel f3g
symbol a b c d e min max min max a 1.27 1.58 0.050 0.062 b 2.29 2.83 0.090 0.111 c 4.06 4.60 0.160 0.181 d 1.99 2.50 0.078 0.098 e 0.90 1.41 0.035 0.056 f 0.15 0.31 0.006 0.012 g 0.10 0.20 0.004 0.008 h 4.95 5.33 0.195 0.210 p/n = specific device code g = green compound yw = date code unit(mm) unit(inch) marking diagram 3.92 2.41 4.43 suggested pad layout unit(mm) 1.78 1.51 package outline dimensions dim.
tvs application notes: any combination of this three, or any one of these applivations, will pr event damage to the load. this would require varying trade-offs in power supply protection versus maintenance(changing the time fuse). an additional method is to utilize the trans transient voltage suppressors may be used at various points in a circuit to provide various degrees of protection. the following is a typical linear power supply with transient voltage suppressor units plaved at different points. all provide protection transient voltage suppressor 1 pr ovides maximum protection. howeve r, the system will probably require replacement of the line fuse(f) since it provides a dominant portion of the series impedance when a surge is encountered. hower, we do not recommend to use the tvs diode here, unless we can know the electric circuit impedance and the magnitude of surge rushed into the circuit. otherwise the tvs diode is easy to be destroyed by voltage surge. transient voltage suppressor 2 provides execllent protection of circuitry excluding the transformer(t). however, since the transformer is a large part of the series impedance, the chance of the line fuse opening during the surge condition is reduced. transient voltage suppressor 3 provides the load with complete protection. it uses a unidirectional transient voltage suppressor, which is a cost advantage. the series impedance now includes the line fuse, transformer, and bridge rectifier(b) so failure
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