page . 1 stad-feb.10.2009 1 1smb5921~1smb5942 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 in compliance 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 positive end (cathode) 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 r e t e m a r a p l o b m y s e u l a v s t i n u t n o n o i t a p i s s i d r e w o p e s l u p k a e p l 5 7 = o 5 7 e v o b a e t a r e d ) a e t o n ( c o c p d 5 . 1 s t t a w ) d o h t e m c e d e j ( d a o l d e t a r n o d e s o p m i r e p u s e v a w - e n i s f l a h e l g n i s s m 3 . 8 t n e r r u c e g r u s d r a w r o f k a e p i m s f 0 1 s p m a e g n a r e r u t a r e p m e t e g a r o t s d n a n o i t c n u j g n i t a r e p o t j ,t g t s 0 5 1 + o t 5 5 - o c
page . 2 stad-feb.10.2009 1 1smb5921~1smb5942 r e b m u n t r a p e g a t l o v r e n e z l a n i m o n e c n a d e p m i r e n e z m u m i x a m e s r e v e r . x a m t n e r r u c e g a k a e l g n i k r a m e d o c v z @i zt z zt @i zt z zk @i zk i r v r v m o n v n i m v x a m ? ? ? ? ? a m ? ? ? ? ? a m a v 1 2 9 5 b m s 1 8 . 6 6 4 . 6 4 1 . 7 3 1 . 5 5 0 0 2 1 5 2 . 5 b 1 2 9 2 2 9 5 b m s 1 5 . 7 3 1 . 7 8 8 . 7 3 0 5 0 0 4 5 . 0 5 6 b 2 2 9 3 2 9 5 b m s 1 2 . 8 9 7 . 7 1 6 . 8 4 7 . 5 4 0 0 4 5 . 0 5 5 . 6 b 3 2 9 4 2 9 5 b m s 1 1 . 9 5 6 . 8 6 5 . 9 4 2 . 1 4 0 0 5 5 . 0 5 7 b 4 2 9 5 2 9 5 b m s 1 0 1 5 . 9 5 . 0 1 5 5 . 7 3 0 0 5 5 2 . 0 5 8 b 5 2 9 6 2 9 5 b m s 1 1 1 5 4 . 0 1 5 5 . 1 1 6 1 . 4 3 0 5 5 5 2 . 0 1 4 . 8 b 6 2 9 7 2 9 5 b m s 1 2 1 4 . 1 1 6 . 2 1 7 2 . 1 3 0 5 5 5 2 . 0 1 1 . 9 b 7 2 9 8 2 9 5 b m s 1 3 1 5 3 . 2 1 5 6 . 3 1 7 8 . 8 2 0 5 5 5 2 . 0 1 9 . 9 b 8 2 9 9 2 9 5 b m s 1 5 1 5 2 . 4 1 5 7 . 5 1 9 5 2 0 0 6 5 2 . 0 1 4 . 1 1 b 9 2 9 0 3 9 5 b m s 1 6 1 2 . 5 1 8 . 6 1 0 1 4 . 3 2 0 0 6 5 2 . 0 1 2 . 2 1 b 0 3 9 1 3 9 5 b m s 1 8 1 1 . 7 1 9 . 8 1 2 1 8 . 0 2 0 5 6 5 2 . 0 1 7 . 3 1 b 1 3 9 2 3 9 5 b m s 1 0 2 9 1 1 2 4 1 7 . 8 1 0 5 6 5 2 . 0 1 2 . 5 1 b 2 3 9 3 3 9 5 b m s 1 2 2 9 . 0 2 1 . 3 2 8 1 7 1 0 5 6 5 2 . 0 1 7 . 6 1 b 3 3 9 4 3 9 5 b m s 1 4 2 8 . 2 2 2 . 5 2 9 1 6 . 5 1 0 0 7 5 2 . 0 1 2 . 8 1 b 4 3 9 5 3 9 5 b m s 1 7 2 5 6 . 5 2 5 3 . 8 2 3 2 9 . 3 1 0 0 7 5 2 . 0 1 6 . 0 2 b 5 3 9 6 3 9 5 b m s 1 0 3 5 . 8 2 5 . 1 3 6 2 5 . 2 1 0 5 7 5 2 . 0 1 8 . 2 2 b 6 3 9 7 3 9 5 b m s 1 3 3 5 3 . 1 3 5 6 . 4 3 3 3 4 . 1 1 0 0 8 5 2 . 0 1 1 . 5 2 b 7 3 9 8 3 9 5 b m s 1 6 3 2 . 4 3 8 . 7 3 8 3 4 . 0 1 0 5 8 5 2 . 0 1 4 . 7 2 b 8 3 9 9 3 9 5 b m s 1 9 3 5 0 . 7 3 5 9 . 0 4 5 4 6 . 9 0 0 9 5 2 . 0 1 7 . 9 2 b 9 3 9 0 4 9 5 b m s 1 3 4 5 8 . 0 4 5 1 . 5 4 3 5 7 . 8 0 5 9 5 2 . 0 1 7 . 2 3 b 0 4 9 1 4 9 5 b m s 1 7 4 5 6 . 4 4 5 3 . 9 4 7 6 8 0 0 0 1 5 2 . 0 1 8 . 5 3 b 1 4 9 2 4 9 5 b m s 1 1 5 5 4 . 8 4 5 5 . 3 5 0 7 3 . 7 0 0 1 1 5 2 . 0 1 8 . 8 3 b 2 4 9
page . 3 stad-feb.10.2009 1 1smb5921~1smb5942 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 1smb5921~1smb5942 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 legal statement copyright panjit international, inc 2009 the information presented in this document is believed to be accurate and reliable. the specifications and information herein are subject to change without notice. pan jit makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose. pan jit products are not authorized for use in life support devices or systems. pan jit does not convey any license under its patent rights or rights of others. 1smb5921~1smb5942 stad-feb.10.2009 1
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