features hermetic glass package silicon planar zener diodes mechanical data case: do-41 glass package weight: 0.3 09 grams (approx.) maximum ratings operating temperature: -65 o c to +200 o c storage temperature: -65 o c to +200 o c for capacitive load, derate current by 20% electrical characteristics @ 25 o c unless otherwise specified note: (1) valid provided that electrodes at a distance of 10mm from case are kept at ambient temperature. 1n4728 thru 1n476 1.0 watt zener diode 3.3 to 75 volts a b c d d cathode mark do-41g
omp onents 20736 marilla street chatsworth
m c c dc power dissipation p d 1.0w t a 50 o c forward thermal resistance r th ja 100 k /w note 1 power derating from 100 o c p tot 10mw/ o c tm micro commercial components marking : cathode band and type number www. mccsemi .com 1 of 4 1n4728 thru 1n4761 voltage v f 1.2v drop revision: a 2011/01/01 lead free finish/rohs compliant (note2) ("p"suffix designates compliant. see ordering information) (2) . lead in glass exemption applied, see eu directive annex 5. ----- ----- 4.50 0.177 min max min max a dimensions d i m i n c h e s m m note ----- ----- c 0 . 0 2 6 0 . 0 34 0.70 0.90 diameter d 1 . 0 0 0 ----- 2 5 . 4 0 ----- b 2.80 0.110 diameter moisture sensitivity: level 1
note 1: the jedec type number shown with an a suffix ha ve a 5% tolerance on nominal zener voltage. no suffix signifies a 10% tolerance, c signifies 2%. 2: the zener impedance is derived from the 60 hz ac voltage, which results when an ac current having a n rms value equal to 10% of the dc zener current(i zt or i zk ) is superimposed on i zt or i zk . zener impedance is measured at two points to insure a sha rp knee on the breakdown curve and eliminate unstable units. 3: the reverse surge current is measured at 25 o c ambient using a 1/2 square wave or equivalent sine wave pulse 1/120 second duration superimposed on i zt . 4: voltage measurements tobe performed 90 seconds a fter application of dc current. m c c 5: rohs compliant already and pb-free sticker on re el , box & carto n indicated rohs compliant . mcc zener test surge maximum part number voltage current current regulator current v z @i zt i zt z zt @i zt z zk @i zk i zk i r @v r v r i r i zm volts ma ohms ohms ma ua volts ma ma 1n4728 3.3 76 10 400 1 100 1 1380 276 1n4729 3.6 69 10 400 1 100 1 1260 252 1n4730 3.9 64 9 400 1 50 1 1190 234 1n4731 4.3 58 9 400 1 10 1 1070 217 1n4732 4.7 53 8 500 1 10 1 970 193 1n4733 5.1 49 7 550 1 10 1 890 178 1n4734 5.6 45 5 600 1 10 2 810 162 1n4735 6.2 41 2 700 1 10 3 730 146 1n4736 6.8 37 3.5 700 1 10 4 660 133 1n4737 7.5 34 4 700 0.5 10 5 605 121 1n4738 8.2 31 4.5 700 0.5 10 6 550 110 1n4739 9.1 28 5 700 0.5 10 7 500 100 1n4740 10 25 7 700 0.25 10 7.6 454 91 1n4741 11 23 8 700 0.25 5 8.4 414 83 1n4742 12 21 9 700 0.25 5 9.1 380 76 1n4743 13 19 10 700 0.25 5 9.9 344 69 1N4744 15 17 14 700 0.25 5 11.4 304 61 1n4745 16 15.5 16 700 0.25 5 12.2 285 57 1n4746 18 14 20 750 0.25 5 13.7 250 50 1n4747 20 12.5 22 750 0.25 5 15.2 225 45 1n4748 22 11.5 23 750 0.25 5 16.7 205 41 1n4749 24 10.5 25 750 0.25 5 18.2 190 38 1n4750 27 9.5 35 750 0.25 5 20.6 170 34 1n4751 30 8.5 40 1000 0.25 5 22.8 150 30 1n4752 33 7.5 45 1000 0.25 5 25.1 135 27 1n4753 36 7 50 1000 0.25 5 27.4 125 25 1n4754 39 6.5 60 1000 0.25 5 29.7 115 23 1n4755 43 6 70 1500 0.25 5 32.7 110 22 1n4756 47 5.5 80 1500 0.25 5 35.8 95 19 1n4757 51 5 95 1500 0.25 5 38.8 90 18 1n4758 56 4.5 110 2000 0.25 5 42.6 80 16 1n4759 62 4 125 2000 0.25 5 47.1 70 14 1n4760 68 3.7 150 2000 0.25 5 51.7 65 13 1n4761 75 3.3 175 2000 0.25 5 56 60 12 leakage current maximum reverse maximum dynamic impedance electrical characteristics (t a = 25c unless otherwise noted). maximum v f = 1.2v at i f = 200ma 1n4728 thru 1n476 1 www. mccsemi .com 2 of 4 tm micro commercial components m c c revision: a 2011/01/01
1n4728 thru 1n476 1 www. mccsemi .com 3 of 4 m c c tm micro commercial components figure 3 . effect of zener current on zener impedance figure 4 . effect of zener voltage on zener impedance 1000 500 200 100 50 20 10 5 2 1 0.1 0.2 0.5 1 2 5 10 20 50 100 i z , zener current (ma) z z , dynamic impedance (ohms) 1000 700 500 200 100 70 50 20 10 7 5 2 1 1 2 100 v z , zener current (ma) 3 5 7 10 20 30 50 70 z z , dynamic impedance (ohms) t j = 25 c i z (rms) = 0.1 i z (dc) f = 60 hz 6.2 v 27 v v z = 2.7 v 47 v t j = 25 c i z (rms) = 0.1 i z (dc) f = 60 hz 20 ma 5 ma i z = 1 ma figure 1 . typical thermal resistance versus lead length figure 2 . effect of zener current 175 150 125 100 75 50 25 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 l, lead length to heat sink (inches) jl , junction-to-lead thermal resistance (mv/ c/w) v z , temperature coefficient (mv/ c) +6 +4 +2 0 e2 e4 3 4 5 6 7 8 v z , zener voltage (volts) v z @ i z t a = 25 c 20 ma 0.01 ma 1 ma note: below 3 volts and above 8 volts note: changes in zener current do not note: effect temperature coefficients figure 5. maximum surge power 100 70 50 30 20 10 7 5 3 2 1 0.01 0.02 0.05 0.1 0.2 0.5 1 2 5 10 20 50 100 200 500 1000 pw, pulse width (ms) this graph represents 90 percentile data points. for worst case design characteristics, multiply surge power by 2/3. p pk , peak surge power (watts) 11 ve100 v nonrepetitive 3.3 ve10 v nonrepetitive 5% duty cycle 10% duty cycle 20% duty cycle rectangular waveform t j = 25 c prior to initial pulse revision: a 2011/01/01
m c c tm micro commercial components www. mccsemi .com 4 of 4 revision: a 2011/01/01 3 device packing part number-tp tape&reel: 5kpcs/reel part number-ap ammo packing: 2. 5 k p c s / a mm o b o x part number-bp bulk: 5 0 k p c s / c a r t o n ordering information : *** i m p o r t a n t n o t ic e * ** m i c r o c o m m e r c i a l c o m p on e n ts c o r p . r e s e rve s t h e r i g h t t o m a k e c h a n g e s w i t ho u t f u r t h e r no t i c e t o a n y p r o d u c t h e r e i n t o m a k e c o rr e c t i o n s , m o d i f i c a t i o n s , e n h a n c e m e n t s , i m pr o v e m e n t s , o r o t h e r ch a n g e s . m i c r o c o m m e r c i a l c o mp o n e n ts c o r p . d o e s n o t a s s u m e a n y l i a b i l i t y a r i s i n g ou t o f t h e a p p l i c a t i on o r u s e o f a n y p r o d uc t d e sc r i be d h e r e i n ; n e i t h e r d o e s i t c o n v e y a n y li c e n s e un der i t s p a t e n t r i g h t s , n o r t h e r i g h t s o f o t h e r s . t h e u s e r o f pr o d uc t s i n s u c h a p p l i c a t i o n s sh a l l a ss u m e a l l r i s k s o f su c h u s e a n d w ill a g r ee t o h o l d m i c r o c o mm er c i a l c o m p o n e n t s c o r p . a n d a ll t h e c o m p a n i e s w ho s e p r o d u c t s a r e r e p r e s e n t ed o n ou r w e b s i t e , h a r m l e s s a g a i n s t a l l d a m a g e s. * * * l i f e s u p p o r t *** m c c ' s pr o d uc t s a r e n o t a u t h o r iz ed f o r u s e a s c r i t i c a l c o m p o n e n t s i n l i f e s u pp o r t d e v i c e s o r s y s t e m s w i t h ou t t h e e x pre ss wr i tt e n a p p r o v a l o f m i c r o c o mm e r c i a l c o m p o n e n t s c o rp o r a t i o n. * * * c u s t o m e r a w a r e n e ss*** c o un t e r f e i t i n g o f s e m i c o n d u c t o r p a r t s i s a gr o w i n g p r o b l e m i n t h e i n d u s t ry . m i c r o c o mm e r c i a l c o m p o n e n t s ( m cc ) i s t a k i n g s t r o n g m e a su r e s t o p r o t e c t ou r s e l v e s a n d o u r cu s t o m e r s f r o m t h e pr o l i f e r a t i on o f c o u n t e r f e i t p a r t s . m c c s t r o n g l y e nc o u r a g e s c u s t o m e r s t o p u r c h a s e m c c p a r t s e i t h e r d i r e c t l y f r o m m c c o r f r o m a u t ho r i z e d m c c d i s t r i b u t o r s w ho a r e l i s t e d b y c o u n t r y o n o u r w e b p a g e c i t ed below . p r o d uc t s c us t o m e r s b u y e i t h e r f r o m m c c d i r e c t l y o r f r o m a u t ho r i z e d m cc d i s t r i b u t o r s a r e g e n u i n e p a r t s , h a v e f ul l t r a c e a b il i t y , m e e t m c c ' s q u a l i t y s t a n d a r d s f o r h a n d li n g a n d s t o r a g e . m c c wi l l n o t p r o v i d e a n y w a rr a n ty c o v e r a g e o r o t h e r a s s i s t a n c e f o r p a r ts b o u g h t f r o m u n a u t h o r i z e d s o u r c e s. m c c i s c o m m i t t e d t o c o m b a t t h i s g l o b a l pr o b l e m a n d e n c ou r a g e o u r c u s t o m e r s t o d o t h e i r p a r t in s t o p p i n g t h i s p r a c t i c e b y b u y i n g d i r e c t o r f r o m a u t h o r i z ed d i s t r i b u t o r s.
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