page . 1 stad-jan.27.2005 data sheet 1sma4728~1sma4764 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 5.0a above 11v ? plastic package has underwriters laboratory flammability classification 94v-o ? high temperature soldering : 260c /10 seconds at terminals ? pb free product are available : 99% sn above can meet rohs environment substance directive request mechanical data case: jedec do-214ac,molded plastic over passivated junction. terminals: solder plated,solderable per mil-std-202g, method 208 polarity: color band denotes positive end (cathode) standard packaging:12mm tape (eia-481) weight: 0.002 ounce, 0.064 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 on8.3ms, and single half sine-wave or equivalent square wave ,duty cycle=4 pulses per minute maximum. c. tolerance and type number designation. the type numbers listed have a standard tolerance on the nominal zener voltage of 5%. sma/do-214ac unit: inch (mm) .181(4.60) .208(5.28) .060(1.52) .096(2.44) .062(1.60) .114(2.90) .008(.203) .012(.305) .157(4.00) .188(4.80) .030(0.76) .078(2.00) .047(1.20) .098(2.50) .002(.051) .006(.152) voltage 3.3 to 100 volts 1.0 watts power r e t e m a r a pl o b m y s e u l a vs t i n u 0 5 = a 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 w p o ) a s e t o n ( c 0 5 e v o b a e t a r e d o c p d 0 . 1 7 6 . 6 s t t a w / w m o c 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 ) 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 i fsm 0 1s 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 , stg 0 5 1 + o t 5 5 - o c
page . 2 std-jan.27.2005 nom. v min. v max. v o ma o ma ua v 1sma4728 3.3 3.1 3.5 10.0 76.0 400 1.00 100 1.0 sma 1sma4729 3.6 3.4 3.8 10.0 69.0 400 1.00 100 1.0 sma 1sma4730 3.9 3.7 4.1 9.0 64.0 400 1.00 50 1.0 sma 1sma4731 4.3 4.1 4.5 9.0 58.0 400 1.00 10 1.0 sma 1sma4732 4.7 4.5 4.9 8.0 53.0 500 1.00 10 1.0 sma 1sma4733 5.1 4.8 5.4 7.0 49.0 550 1.00 10 1.0 sma 1sma4734 5.6 5.3 5.9 5.0 45.0 600 1.00 10 2.0 sma 1sma4735 6.2 5.9 6.5 2.0 41.0 700 1.00 10 3.0 sma 1sma4736 6.8 6.5 7.1 3.5 37.0 700 1.00 10 4.0 sma 1SMA4737 7.5 7.1 7.9 4.0 34.0 700 0.50 10 5.0 sma 1sma4738 8.2 7.8 8.6 4.5 31.0 700 0.50 10 6.0 sma 1sam4739 9.1 8.6 9.6 5.0 28.0 700 0.50 10 7.0 sma 1sma4740 10.0 9.5 10.5 7.0 25.0 700 0.25 10 7.6 sma 1sma4741 11.0 10.5 11.6 8.0 23.0 700 0.25 0.1 8.4 sma 1sma4742 12.0 11.4 12.6 9.0 21.0 700 0.25 0.1 9.1 sma 1sma4743 13.0 12.4 13.7 10.0 19.0 700 0.25 0.1 9.9 sma 1sma4744 15.0 14.3 15.8 14.0 17.0 700 0.25 0.1 11.4 sma 1sma4745 16.0 15.2 16.8 16.0 15.5 700 0.25 0.1 12.2 sma 1sma4746 18.0 17.1 18.9 20.0 14.0 750 0.25 0.1 13.7 sma 1sma4747 20.0 19.0 21.0 22.0 12.5 750 0.25 0.1 15.2 sma 1sma4748 22.0 20.9 23.1 23.0 11.5 750 0.25 0.1 16.7 sma 1sma4749 24.0 22.8 25.2 25.0 10.5 750 0.25 0.1 18.2 sma 1sma4750 27.0 25.7 28.4 35.0 9.5 750 0.25 0.1 20.6 sma 1sma4751 30.0 28.5 31.5 40.0 8.5 1000 0.25 0.1 22.8 sma 1sma4752 33.0 31.4 34.7 45.0 7.5 1000 0.25 0.1 25.1 sma 1sma4753 36.0 34.2 37.8 50.0 7.0 1000 0.25 0.1 27.4 sma 1sma4754 39.0 37.1 41 60.0 6.5 1000 0.25 0.1 29.7 sma 1sma4755 43.0 40.9 45.2 70.0 6.0 1500 0.25 0.1 32.7 sma 1sma4756 47.0 44.7 49.4 80.0 5.5 1500 0.25 0.1 35.8 sma 1sma4757 51.0 48.5 53.6 95.0 5.0 1500 0.25 0.1 38.8 sma 1sma4758 56.0 53.2 58.8 110 4.5 2000 0.25 0.1 42.6 sma 1sma4759 62.0 58.9 65.1 125 4.0 2000 0.25 0.1 47.1 sma 1sma4760 68.0 64.6 71.4 150 3.7 2000 0.25 0.1 51.7 sma 1sma4761 75.0 71.3 78.8 175 3.3 2000 0.25 0.1 56.0 sma 1sma4762 82.0 77.9 86.1 200 3.0 3000 0.25 0.1 62.2 sma 1sma4763 91.0 86.5 95.6 250 2.8 3000 0.25 0.1 69.2 sma 1sma4764 100 95.0 105 350 2.5 3000 0.25 0.1 76.0 sma 757b 763b 764b 759b 760b 761b 762b 753b 754b 755b 756b 749b 750b 751b 752b 745b 746b 747b 748b 741b 742b 743b 744b 737b 738b 739b 740b 728b 729b 758b 730b 731b 732b 733b 734b 735b 736b v z @ i zt part number 1.0 watt zener diodes -- continued package maximum zener impedance z zt @ i zt z zk @ i zk maximum leakage current i r @v r marking code
page . 3 stad-jan.27.2005 note: 1. tolerance and type number designation. the type umbers listed have a standard tolerance on the nominal zener voltage of 5% 2. specials available include: a. nominal zener voltages between the voltages shown and tighter voltage tolerances. b. matched sets. 3. zener voltage (vz) measurement. guarantees the zener voltage when measured at 90 seconds while maintaining the lead temperature (t ) at 30 c 1 c, from the diode body. 4. zener impedance (zz) derivation. the zener impedance is derived from the 60 cycle ac voltage, which results when an ac current having an rms value equal to 10% of the dc zener current (izt or izk) is superimposed on izt or izk. 5. surge current (ir) non-repetitive. the rating listed in the electrical characteristics table is maximum peak, non-repetitive, reverse surge current of 1/2 + + l oo 1.0 0.75 0.5 0.25 0 0204060801 1 111 2 0 2 468 0 0 0 000 0 t , lead temperature ( c) l o p , maximum power dissipation (watts) d rating and characteristics curves l=lead length to heat sink figure.1 power temperature derating curve figure.2 temperature coeficients (-55 c to +150 c temperature range; 90% of the units are in the ranges indicated.) oo a.range for units to 12 volts b.range for units 12 to 100 volts
page . 4 stad-jan.27.2005 figure.6 effect of zener current on zener impedance figure.7 effect of zener voltage on zener impedance figure.5 maximum surge power figure.4 effect of zener current figure.3typical thermal resistance versus lead length
page . 5 stad-jan.27.2005 figure.8 typical leakage current figure.10 typical forward characteristics figure.9 typical capacitance versus vz vz, zener voltage (volts) m
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