page . 1 stad-feb.10.2009 1 1smb5921-au~1smb5942-au features ? for surface mounted applications in order to optimize board space. ? low profile package ? built-in strain relief ? glass passivated junction ? low inductance ? typical i r less than 1.0a above 12v ? plastic package has underwriters laboratory flammability classification 94v-o ? high temperature soldering : 260c /10 seconds at terminals ? acqire quality system certificate : ts16949 ? aec-q101 qualified ? lead free in comply with eu rohs 2002/95/ec directives mechanical data ? case: jedec do-214aa,molded plastic over passivated junction. ? terminals: solder plated,solderable per mil-std-750, method 2026 ? polarity: color band denotes cathode end ? standard packaging:12mm tape (eia-481) ? weight: 0.0032 ounce, 0.092 gram surface mount silicon zener diode maximum ratings and electrical characteristics ratings at 25c ambient temperature unless otherwise specified. notes: a.mounted on 5.0mm2 (.013mm thick) land areas. b.measured on 8.3ms, and single half sine-wave or equivalent square wave ,duty cycle=4 pulses per minute maximum. voltage power 6.8 to 51 volts 1.5 watts retemarap lobmys eulav stinu tnonoitapissidrewopeslupkaep l 57= o 57evobaetared)aeton(c o c p d 5.1 sttaw )dohtemcedej(daoldetarnodesopmirepusevaw-enisflahelgnissm3.8tnerrucegrusdrawrofkaep i msf 01 spma egnarerutarepmetegarotsdnanoitcnujgnitarepo t j ,t gts 051+ot55- o c 0.083(2.11) 0.075(1.91) 0.185(4.70) 0.160(4.06) 0.096(2.44) 0.083(2.13) 0.050(1.27) 0.030(0.76) 0.220(5.59) 0.200(5.08) 0.012(0.305) 0.006(0.152) 0.155(3.94) 0.130(3.30)
page . 2 stad-feb.10.2009 1 1smb5921-au~1smb5942-au part number nominal zener voltage maximum zener impedance max. r everse leakage current marking code v z @ i zt z zt @ i zt z zk @ i zk i r v r nom v minv max v ma ma a v 1smb5921-au 6.8 6.46 7.14 3 55.1 200 1 5 5.2 921b 1smb5922-au 7.5 7.13 7.88 3 50 400 0.5 5 6 922b 1smb5923-au 8.2 7.79 8.61 4 45.7 400 0.5 5 6.5 923b 1smb5924-au 9.1 8.65 9.56 4 41.2 500 0.5 5 7 924b 1smb5925-au 10 9.5 10.5 5 37.5 500 0.25 5 8 925b 1smb5926-au 11 10.45 11.55 6 34.1 550 0.25 1 8.4 926b 1SMB5927-AU 12 11.4 12.6 7 31.2 550 0.25 1 9.1 927b 1smb5928-au 13 12.35 13.65 7 28.8 550 0.25 1 9.9 928b 1smb5929-au 15 14.25 15.75 9 25 600 0.25 1 11.4 929b 1smb5930-au 16 15.2 16.8 10 23.4 600 0.25 1 12.2 930b 1smb5931-au 18 17.1 18.9 12 20.8 650 0.25 1 13.7 931b 1smb5932-au 20 19 21 14 18.7 650 0.25 1 15.2 932b 1smb5933-au 22 20.9 23.1 18 17 650 0.25 1 16.7 933b 1smb5934-au 24 22.8 25.2 19 15.6 700 0.25 1 18.2 934b 1smb5935-au 27 25.65 28.35 23 13.9 700 0.25 1 20.6 935b 1smb5936-au 30 28.5 31.5 26 12.5 750 0.25 1 22.8 936b 1smb5937-au 33 31.35 34.65 33 11.4 800 0.25 1 25.1 937b 1smb5938-au 36 34.2 37.8 38 10.4 850 0.25 1 27.4 938b 1smb5939-au 39 37.05 40.95 45 9.6 900 0.25 1 29.7 939b 1smb5940-au 43 40.85 45.15 53 8.7 950 0.25 1 32.7 940b 1smb5941-au 47 44.65 49.35 67 8 1000 0.25 1 35.8 941b 1smb5942-au 51 48.45 53.55 70 7.3 1100 0.25 1 38.8 942b
page . 3 stad-feb.10.2009 1 1smb5921-au~1smb5942-au 100 200 100 70 50 30 20 10 10 20 30 50 70 200 v z @i zt vz, zener voltage (volts) fig.3 zener voltage - 14 to 200 volts v z=150v 62v 22v 12v 6.8v 0.5 1 2 5 10 20 50 100 200 500 1k 500 200 100 50 20 10 5 2 1 t j =25 c i z (rms) =0.1 i (dc) o z iz, zener test current (ma) zz, dynamic impedance (ohms) vz, temperature coeficent (mv/ c) o vz, temperature coeficent (mv/ c) o maximum power dissipation, watts fig.4 effect of zener current 0.1 0.20.3 0.5 12 3 5 10 2030 50 100 1k 500 300 200 100 50 30 20 10 rectangular nonrepetitive waveform t j =25 c prior o to intial pulse ppk, peaksurge power (watts) pw, pulse width (ms) fig.6 maximum surge power 200 100 70 50 30 20 10 7 5 3 2 5 7 10 20 3 4 00 6 50 0 70 100 i z (dc)=1ma i z (rms)=0.1i z (dc) 10ma 20ma zz, dynamic impedance (ohms) vz, zener voltage (volts) fig.5 effect of zener voltage 2.5 2 1.5 1 0.5 0 0 20 40 60 80 100 120 140 150 180 lead temperature, c o fig.1 steady state power derating v , zener voltage (volts) z 8 6 4 2 0 -2 -4 24 6810 10 12 v z @i zt fig.2 zener voltage - to 12 volts
page . 4 stad-feb.10.2009 1 1smb5921-au~1smb5942-au 0 12 3 4 5 678910 100 50 30 20 10 5 3 2 1 0.5 0.3 0.2 0.1 iz, zener current (ma) vz, zener voltage (volts) fig.7 vz = 6.8 thru 10 volts 100 50 30 20 10 5 3 2 1 0.5 0.3 0.2 0.1 0 102030405060708090100 iz, zener current (ma) vz, zener voltage (volts) fig.8vz=12thru82volts note 3. zener voltage (vz) measurement nominal zener voltage is measured with the device function in thermal equilibrium with ambient temperature at 25 c note 4. zener impedance (zz) derivation zzt and zzk are measured by dividing the ac voltage drop across the device by the accurrent applied. the specified limits are for iz(ac) = 0.1 iz, (dc) with the ac freqency = 60hz o
page . 5 mounting pad layout ? packing information t/r - 3k per 13" plastic reel t/r - 0.5kper 7? plastic reel order information 1smb5921-au~1smb5942-au stad-feb.10.2009 1
page . 6 part no_packing code_version 1smb5921-au_r1_000a1 1smb5921-au_r1_100a1 1smb5921-au_r2_000a1 1smb5921-au_r2_100a1 for example : rb500v-40 _ r2 _ 00001 part no. serial number version code means hf packing size code means 13" packing type means t/r packing code xx version code xxxxx packing type 1 st code packing size code 2 nd code hf or rohs 1 st code 2 nd ~5 th code tape and ammunition box (t/b) a n/a 0 hf 0 serial number tape and reel (t/r) r 7" 1 rohs 1 serial number bulk packing (b/p) b 13" 2 tube packing (t/p) t 26mm x tape and reel (right oriented) (trr) s 52mm y tape and reel (left oriented) (trl) l panasert t/b cathode up (pbcu) u forming f panasert t/b cathode down (pbcd) d 1smb5921-au~1smb5942-au stad-feb.10.2009 1
disclaimer z reproducing and modifying information of the document is prohibited without permission from panjit international inc.. z panjit international inc. reserves the right s to make changes of the content herein the document anytime without notific ation. please refer to our website for the latest document. z panjit international inc. disclaims any and a ll liability arising out of the application or use of any product including damages inci dentally and consequentially occurred. z panjit international inc. does not assume any and all im plied warranties, including warranties of fitness for particular pur pose, non-infringement and merchantability. z applications shown on the herein doc ument are examples of standard use and operation. customers are responsible in co mprehending the suitable use in particular applications. panjit international inc. make s no representation or warranty that such applications will be suitable for the specified us e without further testing or modification. z the products shown herein are not desi gned and authorized for equipments requiring high level of reliability or relating to human life and for any applications concerning life-saving or life-sustaining, such as medical instruments, transportation equipment, aerospace machinery et cetera . customers using or selli ng these products for use in such applications do so at their own risk and agree to fully indemnify panjit international inc. for any damages result ing from such improper use or sale. 1smb5921-au~1smb5942-au page . 7 stad-feb.10.2009 1
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