tvs diodes surface mount C 400w > smf4l series ?2016 littelfuse, inc. specifcations are subject to change without notice. revised: 08/02/16 description features maximum ratings and thermal characteristics (t a =25 o c unless otherwise noted) parameter symbol value unit peak pulse power dissipation at t a =25oc (note 1) 8/20s (note 2) p ppm 2000 w 10/1000s (note 3) 400 w thermal resistance junction to ambient r ja 220 c/w thermal resistance junction to lead r jl 100 c/w operating and storage temperature range t j, t stg -55 to 150 c notes: 1. non-repetitive current pulse, per fig. 4 and derated above t j (initial) =25oc per fig. 3. 2. smf4l5.0a~smf4l9.0a peak pulse power dissipation is 1850w min, 2000w typical @8/20us 3. smf4l5.0a~smf4l9.0a peak pulse power dissipation is 370w min, 400w typical @ 10/1000s the smf4l series of sod-123fl small and fat lead low- profle plastic package is designed specifcally to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. applications smf4l devices are ideal for the protection of portable devices/hard drives, notebooks, v cc busses, pos terminal, ssds, power supplies, monitors, and vulnerable circuit used in other consumer applications. ? 400w peak pulsepower capability at 10/1000s waveform, repetition rate (duty cycle): 0.01% ? compatible with industrial standard package sod- 123fl ? low inductance, excellent clamping capability ? for surface mounted applications to optimize board space ? typical failure mode is short from over-specifed voltage or current ? whisker test is conducted based on jedec jesd201a per its table 4a and 4c ? iec-61000-4-2 esd 30kv(air), 30kv (contact) ? esd protection of data lines in accordance with iec 61000-4-2 ? eft protection of data lines in accordance with iec 61000-4-4 ? fast response time: typically less than 1.0ns from 0 volts to v br min ? high temperature soldering: 260c/40 seconds at terminals ? glass passivated junction ? built-in strain relief ? plastic package is fammability rated v-0 per underwriters laboratories ? meet msl level1, per j-std-020, lf maximun peak of 260 c ? matte tin leadCfree plated ? halogen-free and rohs compliant ? pb-free e3 means 2 nd level interconnect is pb-free and the terminal fnish material is tin(sn) (ipc/ jedec j-std-609a.01) agency agency file number e230531 agency approvals smf4l series functional diagram bi-directional uni-directional cathode anode r ohs pb e3 uni-directional
tvs diodes surface mount C 400w > smf4l series ?2016 littelfuse, inc. specifcations are subject to change without notice. revised: 08/02/16 electrical characteristics (t a =25c unless otherwise noted) part number marking code breakdown voltage v br (volts) @ i t test current i t (ma) reverse stand off voltage v r (v) maximum reverse leakage @ v r i r (a) maximum peak pulse current i pp (a) maximum clamping voltage @i pp v c (v) agency approval min max smf4l5.0a ke 6.40 7. 0 0 10 5.0 800 40.1 9.2 x smf4l6.0a kg 6.67 7.37 10 6.0 800 35.9 10.3 x smf4l6.5a kk 7.22 7.98 10 6.5 500 33.1 11. 2 x smf4l7.0a km 7.78 8.60 10 7.0 200 30.9 12.0 x smf4l7.5a kp 8.33 9.21 1 7.5 100 28.7 12.9 x smf4l8.0a kr 8.89 9.83 1 8.0 50 27.2 13.6 x smf4l8.5a kt 9.44 10.40 1 8.5 20 25.7 14.4 x smf4l9.0a kv 10.00 11. 10 1 9.0 10 24.1 15.4 x smf4l10a kx 11. 10 12.30 1 10 5 23.5 1 7. 0 x smf4l11a kz 12.20 13.50 1 11 1 22.0 18.2 x smf4l12a le 13.30 14.70 1 12 1 20.1 19.9 x smf4l13a lg 14.40 15.90 1 13 1 18.6 21.5 x smf4l14a lk 15.60 17.20 1 14 1 1 7. 2 23.2 x smf4l15a lm 16.70 18.50 1 15 1 16.4 24.4 x smf4l16a lp 17.80 19.70 1 16 1 15.4 26.0 x smf4l17a lr 18.90 20.90 1 17 1 14.5 27.6 x smf4l18a lt 20.00 22.10 1 18 1 13.7 29.2 x smf4l20a lv 22.20 24.50 1 20 1 12.3 32.4 x smf4l22a lx 24.40 26.90 1 22 1 11. 3 35.5 x smf4l24a lz 26.70 29.50 1 24 1 10.3 38.9 x smf4l26a me 28.90 31.90 1 26 1 9.5 42.1 x smf4l28a mg 31.10 34.40 1 28 1 8.8 45.4 x smf4l30a mk 33.30 36.80 1 30 1 8.3 48.4 x smf4l33a mm 36.70 40.60 1 33 1 7. 5 53.3 x smf4l36a mp 40.00 44.20 1 36 1 6.9 58.1 x smf4l40a mr 44.40 49.10 1 40 1 6.2 64.5 x smf4l43a mt 47.80 52.80 1 43 1 5.8 69.4 x smf4l45a mv 50.00 55.30 1 45 1 5.5 72.7 x smf4l48a mx 53.30 58.90 1 48 1 5.2 77.4 x smf4l51a mz 56.70 62.70 1 51 1 4.9 82.4 x smf4l54a ne 60.00 66.30 1 54 1 4.6 87.1 x smf4l58a ng 64.40 71.20 1 58 1 4.3 93.6 x smf4l60a nk 66.70 73.70 1 60 1 4.1 96.8 x smf4l64a nm 71.10 78.60 1 64 1 3.9 103.0 x smf4l70a np 77.80 86.00 1 70 1 3.5 113.0 x smf4l75a nr 83.30 92.10 1 75 1 3.3 121.0 x smf4l78a nt 86.70 95.80 1 78 1 3.2 126.0 x smf4l85a nv 94.40 104.00 1 85 1 2.9 137.0 x notes: 1. v br measured after i t applied for 300s, i t = square wave pulse or equivalent. 2. surge current waveform per 10/1000s exponential wave and derated per fig.2. 3. all terms and symbols are consistent with ansi/ieee c62.35.
tvs diodes surface mount C 400w > smf4l series ?2016 littelfuse, inc. specifcations are subject to change without notice. revised: 08/02/16 ratings and characteristic curves (t a =25c unless otherwise noted) vo lt age tr an si en ts ti me vo lt age acro ss tv s current through tv s voltage or current figure 1 - tvs transients clamping waveform figure 2 - peak pulse power rating curve i-v curve characteristics p ppm peak pulse power dissipation -- max power dissipation v r stand-off voltage -- maximum voltage that can be applied to the tvs without operation v br breakdown voltage -- maximum voltage that fows though the tvs at a specifed test current (i t ) v c clamping voltage -- peak voltage measured across the tvs at a specifed ippm (peak impulse current) i r reverse leakage current -- current measured at v r v f forward voltage drop for uni-directional vc v br v r i r i t i pp v uni-directional v f continues on next page. 0. 1 1 10 0. 00000 10 .0 00010 .0 001 0. 001 t d -pulse width (sec.) p ppm -peak pulse power (kw) 0. 2x 0. 2" (5 .0 x5 .0 mm) c opper p ad ar ea
tvs diodes surface mount C 400w > smf4l series ?2016 littelfuse, inc. specifcations are subject to change without notice. revised: 08/02/16 ratings and characteristic curves (t a =25c unless otherwise noted) (continued) 0 0. 4 0. 5 0. 6 0. 7 0.8 0.9 -5 51 07 51 40 te mp er at ur e (oc) v f - typical forward dropped voltage@10m a figure 5 - forward voltage figure 3 - peak pulse power derating curve i ppm - p eak p ulse cur rent, % i rsm 0 0 50 10 0 15 0 1. 0 2.0 3.0 4.0 t r =1 0sec p eak v alue i ppm i ppm 2 t j =25c p ulse width(td) is de?ned as the point where the peak cur rent decays to 50% of i ppm 1 0/1 000sec. w aveform as de?ned by r.e.a t d t-t ime (ms) half v alue i ppm ( ) figure 4 - pulse waveform - 10/1000 s 0 20 40 60 80 100 02 55 07 5 100 125 17 5 peak pulse power (p pp ) or current (i pp ) derating in percentage % 150 t j - initial junction temperature (oc) 1 10 100 1000 10000 11 01 00 cj (p f) vb r -r ev er se br ea kdow n volt ag e (v ) uni-directional v=0v uni-directional v= v r figure 6 - typical junction capacitance 0. 01 0. 1 1 10 00 .5 11 .5 22 .5 33 .5 4 i f -p ea k fo rw ar d cu rre nt (a ) v f -p ea k fo rw ar d vo lt ag e( v) figure 7 - peak forward voltage drop vs. peak forward current 0 5 10 15 20 25 30 35 11 01 00 if sm -p ea k fo rw ar d su rv e cu rren t( a) nu mb er of cy cl es at 60 hz figure 8 - maximum non-repetitive forward surge current uni-directional only
tvs diodes surface mount C 400w > smf4l series ?2016 littelfuse, inc. specifcations are subject to change without notice. revised: 08/02/16 physical specifcations case sod-123fl plastic over glass passivated junction polarity color band denotes cathode except bipolar terminal matte tin-plated leads, solderable per jesd22-b102 environmental specifcations high temp. storage jesd22-a103 htrb jesd22-a108 temperature cycling jesd22-a104 msl jedec-j-std-020, level 1 h3trb jesd22-a101 rsh jesd22-a111 soldering parameters te mperature (t ) ti me (t) t s(min) t s(max) t l t p t s prehea t t l t p ramp-up critical zone t l to t p ramp-dow n t 25?c to peak 25?c refow condition leadCfree assembly pre heat - temperature min (t s(min) ) 150c - temperature max (t s(max) ) 200c - time (min to max) (t s ) 60 C 180 secs average ramp up rate (liquidus temp (t a ) to peak 3c/second max t s(max) to t a - ramp-up rate 3c/second max refow - temperature (t a ) (liquidus) 217c - time (min to max) (t s ) 60 C 150 seconds peak temperature (t p ) 260 +0/-5 c time within 5c of actual peak temperature (t p ) 20 C 40 seconds ramp-down rate 6c/second max time 25c to peak temperature (t p ) 8 minutes max. do not exceed 260c dimensions - sod-123fl package dimensions millimeters inches min max min max a 2.90 3.10 0.114 0.122 b 3.50 3.90 0.138 0.154 c 0.85 1.05 0.033 0.041 d 1.70 2.00 0.067 0.079 e 0.43 0.83 0.017 0.033 f 0.10 0.25 0.004 0.010 g 0.00 0.10 0.000 0.004 h 0.90 1.08 0.035 0.043 a b c d e e f h g 1. 6 (0.062) mounting p ad layout
tvs diodes surface mount C 400w > smf4l series ?2016 littelfuse, inc. specifcations are subject to change without notice. revised: 08/02/16 part numbering system v r vo lta ge 5% v br vo lta ge t olerance smf4l xx a series part marking system packaging options part number component package quantity packaging option packaging specifcation smf4lxxx sod-123fl 3000 tape & reel C 8mm tape/7 reel eia rs-481 xx marking code e band d o h t a c l f ym trace code marking y:year code m: month code cathode tape and reel specifcation 0.31 (8.0) 0.1 57 (4.0) 0.1 57 (4.0) 0.33 (8.5) 0.80 (20.2) arbor hole dia. optional 7? 7 .0 (1 78) 1 3? 1 3.0 (330) dimensions are in inc hes (and millimeter s). direction of f eed 0.059 dia (1 .5) co ver tape
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