dimensions in inches and (millimeters) 0.157 (3.99) 0.177 (4.50) 0.006 (0.152) 0.012 (0.305) 0.030 (0.76) 0.060 (1.52) 0.008 (0.203) max. 0.194 (4.93) 0.208 (5.28) 0.100 (2.54) 0.110 (2.79) 0.078 (1.98) 0.090 (2.29) 0.049 (1.25) 0.065 (1.65) cathode band features ?plastic package has underwriters laboratory flammability classification 94v-0 ?for surface mounted applications ?low zener impedance ?low regulation factor ?high temperature soldering guaranteed: 250?/10 seconds at terminals maximum ratings and thermal characteristics (t c = 25 c unless otherwise noted) parameter symbol value unit power dissipation at t l = 75 cp tot 1.0 w maximum junction temperature t j 150 c storage temperature range t s 65 to +150 c mechanical data case: jedec do-214ac molded plastic over passivated junction terminals: solder plated, solderable per mil-std- 750, method 2026 polarity: color band denotes positive end (cathode) mounting position: any weight: 0.002 ounce, 0.064 gram packaging codes ?options (antistatic): sml4728 sml4737a: 2p 1.8k per 7 plastic reel (12mm tape), 36k/carton 2q 7.5k per 13 plastic reel (12mm tape), 75k/carton sml4738 sml4764a: 51 1k per bulk box, 20k/carton 61 1.8k per 7 plastic reel (12mm tape), 36k/carton 5a 7.5k per 13 plastic reel (12mm tape), 75k/carton sml4728 thru sml4764a surface mount zener diodes zener voltage 3.3 to 100v power dissipation 1.0w do-214ac (sma) 4/24/01 0.094 max. (2.38 max.) 0.220 (5.58) ref 0.066 min. (1.68 min.) 0.052 min. (1.32 min.) mounting pad layout extended voltage range
sml4728 thru sml4764a surface mount zener diodes electrical characteristics (t a = 25 c unless otherwise noted) v f = 1.2v max@i f = 200 ma for all types. nominal maximum dynamic maximum zener impedance maximum dc reverse surge device voltage test leakage current current type marking at i zt current z zt at code v z (1) i zt i zt z zk at i zk i zk (1) i r v r i rm (2) (volts) (ma) (w) (w) (ma) (a) (volts) (mapk) sml4728 3p3 3.3 76.0 10.0 400 1.0 100 1.0 1380 sml4729 3p6 3.6 69.0 10.0 400 1.0 100 1.0 1260 sml4730 3p9 3.9 64.0 9.0 400 1.0 50 1.0 1190 sml4731 4p3 4.3 58.0 9.0 400 1.0 10 1.0 1070 sml4732 4p7 4.7 53.0 8.0 500 1.0 10 1.0 970 sml4733 5p1 5.1 49.0 7.0 550 1.0 10 1.0 890 sml4734 5p6 5.6 45.0 5.0 600 1.0 10 2.0 810 sml4735 6p2 6.2 41.0 2.0 700 1.0 10 3.0 730 sml4736 6p8 6.8 37.0 3.5 700 1.0 10 4.0 660 sml4737 7p5 7.5 34.0 4.0 700 0.5 10 5.0 605 sml4738 8p2 8.2 31.0 4.5 700 0.5 10 6.0 550 sml4739 9p1 9.1 28.0 5.0 700 0.5 10 7.0 500 sml4740 10 10 25.0 7.0 700 0.25 10 7.6 454 sml4741 11 11 23.0 8.0 700 0.25 5 8.4 414 sml4742 12 12 21.0 9.0 700 0.25 5 9.1 380 sml4743 13 13 19.0 10.0 700 0.25 5 9.9 344 sml4744 15 15 17.0 14.0 700 0.25 5 11.4 305 sml4745 16 16 15.5 16.0 700 0.25 5 12.2 285 sml4746 18 18 14.0 20.0 750 0.25 5 13.7 250 sml4747 20 20 12.5 22.0 750 0.25 5 15.2 225 sml4748 22 22 11.5 23.0 750 0.25 5 16.7 205 sml4749 24 24 10.5 25.0 750 0.25 5 18.2 190 sml4750 27 27 9.5 35.0 750 0.25 5 20.6 170 sml4751 30 30 8.5 40.0 1000 0.25 5 22.8 150 sml4752 33 33 7.5 45.0 1000 0.25 5 25.1 135 sml4753 36 36 7.0 50.0 1000 0.25 5 27.4 125 sml4754 39 39 6.5 60.0 1000 0.25 5 29.7 115 sml4755 43 43 6.0 70.0 1500 0.25 5 32.7 110 sml4756 47 47 5.5 80.0 1500 0.25 5 35.8 95 sml4757 51 51 5.0 95.0 1500 0.25 5 38.8 90 sml4758 56 56 4.5 110 2000 0.25 5 42.6 80 sml4759 62 62 4.0 125 2000 0.25 5 47.1 70 sml4760 68 68 3.7 150 2000 0.25 5 51.7 65 sml4761 75 75 3.3 175 2000 0.25 5 56.0 60 sml4762 82 82 3.0 200 3000 0.25 5 62.2 55 sml4763 91 91 2.8 250 3000 0.25 5 69.2 50 sml4764 100 100 2.5 350 3000 0.25 5 76.0 45 notes: (1) standard voltage tolerance is 10%, suffix a 5% (2) surge current is a non-repetitive, 8.3ms pulse width square wave or equivalent sine-wave superimposed on i zt per jedec method (3) maximum steady state power dissipation is 1.0 watt at t t = 75 c
25 50 75 100 125 150 175 0 0.25 0.5 0.75 1.0 0.5 10 100 500 1 10 100 1,000 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0.01 0.1 1 10 0 20 40 60 80 100 0.01 0.1 1 10 0 10 20 30 40 50 60 70 80 90 100 0 10 30 50 70 90 110 terminals temperature ( c) p m(av) , average power dissipation (w) i zt , zener test current (ma) z z , dynamic zener impedance ( ? ) percent of rated zener voltage (%) instantaneous reverse current ( a) v z , zener voltage (v) v z , temperature coefficient (mv/ c) instantaneous forward voltage (v) instantaneous forward current (a) fig. 1 - maximum continuous power dissipation fig. 3 - typical zener impedance fig. 5 - typical temperature coefficients fig. 2 - typical instantaneous forward characteristics for sml4763 fig. 4 - typical reverse characteristics 60 h z resistive or inductive load p.c.b. mounted on 0.31 x 0.31 x 0.08" (8 x 8 x 2mm) copper areas pads pulse width = 300 s 1% duty cycle t j = 25 c t j = 25 c v z = 91v v z = 56v v z = 30v v z = 6.2v tested at rated i zt t j = 25 c t j = 100 c ratings and characteristic curves (t a = 25 c unless otherwise noted) sml4728 thru sml4764a surface mount zener diodes
|
