? 2017 littelfuse, inc. specifcations are subject to change without notice. revised: 09/14/17 ? working peak reverse voltage range ? 5.0 v to 170 v for unidirectional, and 10 v to 75 v for bidirectional ? standard zener breakdown voltage range ? 6.7 v to 199 v for uni-directional, 11.7 v to 91.7 v for bi-directional ? peak power ? 600 w @ 1.0 ms ? esd rating of class 3 (> 16 kv) per human body model ? maximum clamp voltage @ peak pulse current ? low leakage < 5.0 a above 10 v ? ul 497b for isolated loop circuit protection ? response time is typically < 1.0 ns ? pb-free means 2nd level interconnect is pb-free and the terminal fnish material is tin(sn) (ipc/jedec j-std-609a.01) ? sz prefx for automotive and other applications requiring unique site and control change requirements; aec?q101 qualifed and ppap capable features the SZ1SMB series is designed to protect voltage sensitive components from high voltage, high energy transients. they have excellent clamping capability, high surge capability, low zener impedance and fast response time. the SZ1SMB series is supplied in the littelfuse exclusive, cost-effective, highly reliable package and is ideally suited for use in communication systems, automotive, numerical controls, process controls, medical equipment, business machines, power supplies and many other industrial/consumer applications. description parameter symbol value unit peak power dissipation (note 1) @ t l = 25c, pulse width = 1 ms p pk 600 w dc power dissipation @ tl = 75c measured zero lead length (note 2) derate above 75c thermal resistance from junction?to? lead pd r jl 3.0 40 25 w mw/c c/w dc power dissipation (note 3) @ ta = 25 c derate above 25 c thermal resistance from junctionCtoC ambient p d r ja 0.55 4.4 226 w mw/c c/w forward surge current (note 4) @ ta = 25 c i fsm 100 a operating and storage temperature range t j, t stg -65 to +150 c maximum ratings and thermal characteristics SZ1SMB series pb stresses exceeding those listed in the maximum ratings table may damage the device. if any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. 10 x 1000 s, non?repetitive. 2. 1 square copper pad, fr?4 board. 3. fr?4 board, using littelfuse minimum recommended footprint, as shown in 403a-03 case outline dimensions spec. 4. 1/2 sine wave (or equivalent square wave), pw = 8.3 ms, duty cycle = 4 pulses per minute maximum - for unidirectional only. additional information sample s resourc es da tasheet tvs diodes surface mount > 600w > SZ1SMB series
? 2017 littelfuse, inc. specifcations are subject to change without notice. revised: 09/14/17 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 v br breakdown voltage @ i t i t test current i f maximum temperature coeffcient of v br v f forward voltage @ i f i-v curve characteristics (t a = 25c unless otherwise noted, v f = 3.5 v max. @ i f (note 5) = 30 a) (for unidirectional) 5. 1/2 sine wave (or equivalent square wave), pw = 8.3 ms, non?repetitive duty cycle. un i directional tvs v i 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 v br breakdown voltage @ i t i t test current i f maximum temperature coeffcient of v br v f forward voltage @ i f vf forward voltage @ i f i-v curve characteristics (t a = 25c unless otherwise noted) C for bidirectional i pp i pp i r i t i t i r v rw m v c v br v rw m v c v br functional diagram tvs diodes surface mount > 600w > SZ1SMB series
? 2017 littelfuse, inc. specifcations are subject to change without notice. revised: 09/14/17 electrical characteristics - for unidirectional device* device marking v rwm (note 6) i r @ v rwm breakdown voltage v c @ i pp (note 8) c typ. (note 9) v br @ i t (v) (note 7) @ i t v c i pp volts a min nom max ma volts amps p f SZ1SMB5.0at3g ke 5.0 800 6.40 6.7 7. 0 1. 0 9.2 65.2 2700 sz 1smb6.0at3g kg 6.0 800 6.67 7.02 7.37 1. 0 10.3 58.3 2300 sz 1smb6.5at3g kk 6.5 500 7.22 7. 6 7.98 1. 0 11. 2 53.6 2140 sz 1smb7.0at3g km 7. 0 500 7.78 8.19 8.6 1. 0 12.0 50.0 2005 sz 1smb7.5at3g kp 800 6.67 8.33 8.77 9.21 1. 0 12.9 46.5 1890 sz 1smb8.0at3g kr 500 7.22 8.89 9.36 9.83 1. 0 13.6 44.1 1780 sz 1smb8.5at3g kt 500 7.78 9.44 9.92 10.4 1. 0 14.4 41.7 1690 sz 1smb9.0at3g kv 7. 5 7.02 10.0 10.55 11. 1 1. 0 15.4 39.0 1605 sz 1smb10at3g kx 8.0 7. 6 11. 1 11. 7 12.3 1. 0 1 7. 0 35.3 1460 sz 1smb11at3g kz 8.5 8.19 12.2 12.85 13.5 1. 0 18.2 33.0 1345 sz 1smb12at3g le 9.0 7.37 13.3 14 14.7 1. 0 19.9 30.2 1245 sz 1smb13at3g lg 10 7.98 14.4 15.15 15.9 1. 0 21.5 27.9 116 0 sz 1smb14at3g lk 11 8.6 15.6 16.4 1 7. 2 1. 0 23.2 25.8 1085 sz 1smb15at3g lm 12 10 16.7 1 7. 6 18.5 1. 0 24.4 24.0 1020 sz 1smb16at3g lp 13 10 1 7. 8 18.75 19.7 1. 0 26.0 23.1 965 sz 1smb17at3g lr 14 10 18.9 19.9 20.9 1. 0 27.6 21.7 915 sz 1smb18at3g lt 15 10.3 20.0 21.05 22.1 1. 0 29.2 20.5 870 sz 1smb20at3g lv 16 11. 2 22.2 23.35 24.5 1. 0 32.4 18.5 790 sz 1smb22at3g ttc 17 12.0 24.4 25.65 26.9 1. 0 35.5 16.9 730 SZ1SMB24at3g lx lz 18 58.3 26.7 28.1 29.5 1 38.9 15.4 675 SZ1SMB26at3g me 20 53.6 28.9 30.4 31.9 1 42.1 14.2 630 SZ1SMB28at3g mg 22 50.0 31.1 32.75 34.4 1 45.4 13.2 590 SZ1SMB30at3g mk 24 2300 33.3 35.05 36.8 1 48.4 12.4 555 SZ1SMB33at3g mm 5.0 2140 36.7 38.65 40.6 1 53.3 11. 3 510 SZ1SMB36at3g mp 26 2005 40.0 42.1 44.2 1 58.1 10.3 470 SZ1SMB40at3g mr 28 100 44.4 46.75 49.1 1. 0 64.5 9.3 430 SZ1SMB43at3g mt 30 50 47.8 50.3 52.8 1. 0 69.4 8.6 400 SZ1SMB45at3g mv 33 10 50.0 52.65 55.3 1. 0 72.7 8.3 385 SZ1SMB48at3g mx 36 5.0 53.3 56.1 58.9 1. 0 77.4 7. 7 365 SZ1SMB51at3g mz 40 5.0 56.7 59.7 62.7 1. 0 82.4 7. 3 345 SZ1SMB54at3g ne 43 5.0 60.0 63.15 66.3 1. 0 87.1 6.9 330 SZ1SMB58at3g ng 45 5.0 64.4 67.8 71.2 1. 0 93.6 6.4 310 SZ1SMB60at3g nk 48 5.0 66.7 70.2 73.7 1. 0 96.8 6.2 300 SZ1SMB64at3g nm 51 5.0 71.1 74.85 78.6 1. 0 103 5.8 280 SZ1SMB70at3g np 54 5.0 77.8 81.9 86 1. 0 113 5.3 260 SZ1SMB75at3g nr 58 5.0 83.3 87.7 92.1 1. 0 121 4.9 245 tvs diodes surface mount > 600w > SZ1SMB series
? 2017 littelfuse, inc. specifcations are subject to change without notice. revised: 09/14/17 electrical characteristics - for unidirectional - continued breakdown voltage v c @ i pp (note 8) device* device marking v rwm (note 6) i r @ v rwm v br @ i t (v) (note 7) @ i t v c i pp c typ. (note 9) volts a min nom max ma volts amps p f SZ1SMB85at3g nv 85 55.0 94.4 99.2 104 1. 0 137 4.4 220 sz 1smb90at3g nx 90 5.0 100 105.5 111 1. 0 146 4.1 210 sz 1smb100at3g nz 100 5.0 111 117 123 1. 0 162 3.7 190 sz 1smb110at3g pe 110 5.0 122 128.5 135 1. 0 177 3.4 175 sz 1smb120at3g pg 120 5.0 133 140 147 1. 0 193 3.1 160 sz 1smb130at3g pk 130 5.0 144 151.5 159 1. 0 209 2.9 150 sz 1smb150at3g pm 150 5.0 167 176 185 1. 0 243 2.5 135 sz 1smb160at3g pp 160 5.0 178 187.5 197 1. 0 259 2.3 125 sz 1smb170at3g pr 170 5.0 189 199 209 1. 0 275 2.2 120 6. a transient suppressor is normally selected according to the working peak reverse voltage (v rwm ), which should be equal to or greater than the dc or continuous peak operating voltage level. 7. v br measured at pulse test current i t at an ambient temperature of 25c. 8. surge current waveform per figure 2 and derate per figure 4 of the general data ? 600 w at the beginning of this group. 9. bias voltage = 0 v, f = 1 mhz, t j = 25c tvs diodes surface mount > 600w > SZ1SMB series
? 2017 littelfuse, inc. specifcations are subject to change without notice. revised: 09/14/17 electrical characteristics - for bidirectional device* device marking v rwm (note 6) i r @ v rwm breakdown voltage v c @ i pp (note 8) c typ. (note 9) v br @ i t (v) (note 7) @ i t v c i pp volts a min nom max ma volts amps p f SZ1SMB10cat3g kxc 10 5.0 11. 1 11.69 12.27 1. 0 1 7. 0 35.3 805 sz 1smb11cat3g kzc 11 5.0 12.2 12.84 13.5 1. 0 18.2 33.0 74 0 sz 1smb12cat3g lec 12 5.0 13.3 14.00 14.7 1. 0 19.9 30.2 680 sz 1smb13cat3g lgc 13 5.0 14.4 15.16 15.9 1. 0 21.5 27.9 630 sz 1smb14cat3g lkc 14 5.0 15.6 16.42 1 7. 2 1. 0 23.2 25.8 590 sz 1smb15cat3g lmc 15 5.0 16.7 17.58 18.5 1. 0 24.4 24.0 555 sz 1smb16cat3g lpc 16 5.0 1 7. 8 18.74 19.7 1. 0 26.0 23.1 520 sz 1smb17cat3g lrc 17 5.0 18.9 19.90 20.9 1. 0 27.6 21.7 490 sz 1smb18cat3g ltc 18 5.0 20.0 21.06 22.1 1. 0 29.2 20.5 465 sz 1smb20cat3g lvc 20 5.0 22.2 23.37 24.5 1. 0 32.4 18.5 425 sz 1smb22cat3g lxc 22 5.0 24.4 25.69 27.0 1. 0 35.5 16.9 390 sz 1smb24cat3g lzc 24 5.0 26.7 28.11 29.5 1. 0 38.9 15.4 366 sz 1smb26cat3g mec 26 5.0 28.9 30.42 31.9 1. 0 42.1 14.2 330 sz 1smb28cat3g mgc 28 5.0 31.1 32.74 34.4 1. 0 45.4 13.2 310 sz 1smb30cat3g mkc 30 5.0 33.3 35.06 36.8 1. 0 48.4 12.4 290 sz 1smb33cat3g mmc 33 5.0 36.7 38.63 40.6 1. 0 53.3 11. 3 265 sz 1smb36cat3g mpc 36 5.0 40.0 42.11 44.2 1. 0 58.1 10.3 245 sz 1smb40cat3g mrc 40 5.0 44.4 46.74 49.1 1. 0 64.5 9.3 220 sz 1smb43cat3g mtc 43 5.0 47.8 50.32 52.8 1. 0 69.4 8.6 210 SZ1SMB45cat3g mvc 45 5.0 50.0 52.63 55.3 1. 0 72.2 8.3 200 SZ1SMB48cat3g mxc 48 5.0 53.3 56.11 58.9 1. 0 77.4 7. 7 190 SZ1SMB51cat3g mzc 51 5.0 56.7 59.69 62.7 1. 0 82.4 7. 3 175 SZ1SMB54cat3g nec 54 5.0 60.0 63.16 66.32 1. 0 87.1 6.9 170 SZ1SMB58cat3g ngc 58 5.0 64.4 67.79 71.18 1. 0 93.6 6.4 155 SZ1SMB60cat3g nkc 60 5.0 66.7 70.21 73.72 1. 0 96.8 6.2 150 SZ1SMB64cat3g nmc 64 5.0 71.1 74.84 78.58 1. 0 103 5.8 145 SZ1SMB75cat3g nrc 75 5.0 83.3 91.65 92.07 1. 0 121 4.9 125 6. a transient suppressor is normally selected according to the working peak reverse voltage (v rwm ), which should be equal to or greater than the dc or continuous peak operating voltage level. 7. v br measured at pulse test current i t at an ambient temperature of 25c. 8. surge current waveform per figure 2 and derate per figure 3 of the general data ? 600 watt at the beginning of this group. 9. bias voltage = 0 v, f = 1 mhz, t j = 25c tvs diodes surface mount > 600w > SZ1SMB series
? 2017 littelfuse, inc. specifcations are subject to change without notice. revised: 09/14/17 figure 1. pulse rating curve ratings and characteristic curves - for unidirectional figure 2. pulse waveform figure 3 - pulse derating curve figure 4. typical junction capacitance vs. bias voltage figure 5. typical protection circuit in in SZ1SMB5.0at3g SZ1SMB10at3g SZ1SMB48at3g SZ1SMB170at3g sz1sma78cat3g tvs diodes surface mount > 600w > SZ1SMB series
? 2017 littelfuse, inc. specifcations are subject to change without notice. revised: 09/14/17 figure 6. pulse rating curve ratings and characteristic curves - for bidirectional figure 7. pulse waveform 1,000 100 1 11 0 100 bias vol t age (vol ts) 1sma10ca t3g t j = 25 ? c f = 1 mh z c, cap acita nce (pf) 10 1sma18ca t3g 1sma48ca t3g 1sma78ca t3g figure 8. pulse derating curve figure 9. typical junction capacitance vs. bias voltage figure 10. typical protection circuit nonrepetitiv e pulse w a veform shown in figure 2 t 1 10 100 0.1 s1 s1 0 s 100 s 1 ms 10 ms 0.1 in in SZ1SMB10at3g SZ1SMB18at3g SZ1SMB48at3g SZ1SMB78at3g tvs diodes surface mount > 600w > SZ1SMB series
? 2017 littelfuse, inc. specifcations are subject to change without notice. revised: 09/14/17 dimensions part marking system notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: inch. 3. d dimension shall be measured within dimension p. soldering footrpint physical specifcations case void-free, transfer-molded, thermosetting plastic polarity cathode indicated by polarity band mounting position any finish all external surfaces are corrosion resistant and leads are readily solderable leads modifed l?bend providing more contact area to bond pads ordering information device** package shipping? SZ1SMBxxat3g smb (pb?free) 2,500 / tape & reel SZ1SMBxxcat3g smb (pb?free) 2,500 / tape & reel e bd l c a a1 polarity indica to r optional a s neede d (see s tyles) h e flow/wave soldering (solder dipping) peak temperature : 260 o c dipping time : 10 seconds d dim inches millimeters min n om max min n om max a 0.077 0.091 0.097 1.95 2.30 2.47 a1 0.002 0.004 0.008 0.05 0.10 0.20 b 0.077 0.080 0.087 1.96 2.03 2.20 c 0.006 0.09 0.012 0.15 0.23 0.31 d 0.130 0.140 0.156 3.30 3.56 3.95 e 0.16 0 0.170 0.181 4.06 4.32 4.60 h e 0.205 0.214 0.220 5.21 5.44 5.60 l 0.030 0.040 0.063 0.76 1.02 1.60 l1 0.020 ref 0.51 ref unidirectional bidirectional disclaimer notice - information furnished is believed to be accurate and reliable. however, users should independently evaluate the suitability of and test each product selected for their own applications. littelfuse products are not designed for, and may not be used in, all applications. read complete disclaimer notice at: www.littelfuse.com/disclaimer-electronics. tvs diodes surface mount > 600w > SZ1SMB series
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