page . 1 stad-feb.10.2009 1 1n5921b~1n5942b features ? low profile package built-in strain relief low inductance plastic package has underwriters laboratory flammability classification 94v-o in compliance with eu rohs 2002/95/ec directives mechanical data case: jedec do-41,molded plastic over passivated junction. terminals: solder plated, solderable per mil-std-750, method 2026 polarity: color band denotes positive end (cathode) standard packing: 52mm tape weight: 0.0118 ounce, 0.336 gram silicon zener diodes notes: 1.mounted on 5.0mm2 (.013mm thick) land areas. do-41 unit: inch(mm) .034(.86) .107(2.7) .028(.71) .080(2.0) 1.0(25.4)min. 1.0(25.4)min. .205(5.2) .160(4.1) maximum ratings and electrical characteristics ratings at 25c ambient temperature unless otherwise specified. voltage 6.8 to 51 volts power 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 c d a 5 7 = o h t g n e l d a e l o r e z t a e r u s a e m , c 5 7 e v o b a e t a r e d o ) 1 e t o n ( c p d 5 . 1 s t t a w 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 stg 0 5 1 + o t 5 5 - o c
page . 2 stad-feb.10.2009 1 1n5921b~1n5942b 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 m u m i x a m t n e r r u c e g a k a e l 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 b 1 2 9 5 n 1 8 . 6 6 4 . 6 4 1 . 7 3 1 . 5 5 0 0 2 1 5 2 . 5 b 2 2 9 5 n 1 5 . 7 3 1 . 7 8 8 . 7 3 0 5 0 0 4 5 . 0 5 6 b 3 2 9 5 n 1 2 . 8 9 7 . 7 1 6 . 8 4 7 . 5 4 0 0 4 5 . 0 5 5 . 6 b 4 2 9 5 n 1 1 . 9 5 6 . 8 6 5 . 9 4 2 . 1 4 0 0 5 5 . 0 5 7 b 5 2 9 5 n 1 0 1 5 . 9 5 . 0 1 5 5 . 7 3 0 0 5 5 2 . 0 5 8 b 6 2 9 5 n 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 7 2 9 5 n 1 2 1 4 . 1 1 6 . 2 1 7 2 . 1 3 0 5 5 5 2 . 0 1 1 . 9 b 8 2 9 5 n 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 9 2 9 5 n 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 0 3 9 5 n 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 1 3 9 5 n 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 2 3 9 5 n 1 0 2 9 1 1 2 4 1 7 . 8 1 0 5 6 5 2 . 0 1 2 . 5 1 b 3 3 9 5 n 1 2 2 9 . 0 2 1 . 3 2 8 1 7 1 0 5 6 5 2 . 0 1 7 . 6 1 b 4 3 9 5 n 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 5 3 9 5 n 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 6 3 9 5 n 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 7 3 9 5 n 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 8 3 9 5 n 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 9 3 9 5 n 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 0 4 9 5 n 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 1 4 9 5 n 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 2 4 9 5 n 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
page . 3 stad-feb.10.2009 1 1n5921b~1n5942b 200 100 70 50 30 20 10 10 20 30 50 vz, zener voltage (volts) 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 z ener impedance v.s. 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 z ener impedance v.s. 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 t emperature coeeficient v.s. zener voltage,vz(v) fig.3 t emperature coeeficient v.s. zener voltage,vz(v) v z @i zt
page . 4 stad-feb.10.2009 1 1n5921b~1n5942b 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 . 1 010 20 30 40 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
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