creat by art ? low profile package ? built-in strain relief ? glass passivated junction ? low inductance ? typical i r less than 1ua above 11v 1sma4737 sma 1.8k / 7" reel r3 maximum ratings and el ectrical characteristics rating at 25 ambient temperature unless otherwise specified. symbol unit p d watts p d watts p zsm watts t j , t stg version:i13 r3g power dissipation, r thja <100k/w, t a =25 1.25 note 1: non repetitive peak surge pd test condition: tp=100us sq. pulse, ta=25 prior to surge i fsm 10 amps non repetitive peak power dissipation(note 1) 60 non repetitive peak forward surge current, 8.3ms single half sine-wave superimposed on rated load (jedec method) value ? terminals: pure tin plated lead free, solderable per mil-std-750, method 2025 ? standard packaging: 12mm tape (eia-481) ? polarity: color band denotes positive end (cathode) mechanical data ? case: molded plastic over passivated junction ordering information (example) part no. package packing power dissipation, r thja <30k/w, t a =60 3 1sma4737 - 1sma200z sma/do-214ac ? high temperature soldering guaranteed: 260 / 10 seconds at terminals features ? plastic package has underwriters laboratory flammability classification 94v-0 ? green compound with suffix "g" on packing code & prefix "g" on datecode 1.0 watt surface mount silicon zener diodes ? meet msl level 1, per j-std-020d, lead free maximum peak of 260 ? for surface mounted applications in order to optimize board space ? weight: 0.064 gram type number operating and storage temperature range -55 to +150 packing code packing code (green) free datasheet http:///
vz@iz t i zt z zt @i zt i r vma ?? ma ua v ma 1sma4737 737a 7.5 34 4 700 0.50 5 5.0 605 1sma4738 738a 8.2 31 4.5 700 0.50 5 6.0 550 1sma4739 739a 9.1 28 5 700 0.50 5 7.0 500 1sma4740 740a 10 25 7 700 0.25 5 7.6 454 1sma4741 741a 11 23 8 700 0.25 1 8.4 414 1sma4742 742a 12 21 9 700 0.25 1 9.1 380 1sma4743 743a 13 19 10 700 0.25 1 9.9 344 1sma4744 744a 15 17 14 700 0.25 1 11.4 304 1sma4745 745a 16 15.5 16 700 0.25 1 12.2 285 1sma4746 746a 18 14.0 20 750 0.25 1 13.7 250 1sma4747 747a 20 12.5 22 750 0.25 1 15.2 225 1sma4748 748a 22 11.5 23 750 0.25 1 16.7 205 1sma4749 749a 24 10.5 25 750 0.25 1 18.2 190 1sma4750 750a 27 9.5 35 750 0.25 1 20.6 170 1sma4751 751a 30 8.5 40 1000 0.25 1 22.8 150 1sma4752 752a 33 7.5 45 1000 0.25 1 25.1 135 1sma4753 753a 36 7.0 50 1000 0.25 1 27.4 125 1sma4754 754a 39 6.5 60 1000 0.25 1 29.7 115 1sma4755 755a 43 6.0 70 1500 0.25 1 32.7 110 1sma4756 756a 47 5.5 80 1500 0.25 1 35.8 95 1sma4757 757a 51 5.0 95 1500 0.25 1 38.8 90 1sma4758 758a 56 4.5 110 2000 0.25 1 42.6 80 1sma4759 759a 62 4.0 125 2000 0.25 1 47.1 70 1sma4760 760a 68 3.7 150 2000 0.25 1 51.7 65 1sma4761 761a 75 3.3 175 2000 0.25 1 56.0 60 1sma4762 762a 82 3.0 200 3000 0.25 1 62.2 55 1sma4763 763a 91 2.8 250 3000 0.25 1 69.2 50 1sma4764 764a 100 2.5 350 3000 0.25 1 76.0 45 1SMA110Z 110a 110 2.3 450 4000 0.25 1 83.6 - 1sma120z 120a 120 2.0 550 4500 0.25 1 91.2 - 1sma130z 130a 130 1.9 700 5000 0.25 1 98.8 - 1sma150z 150a 150 1.7 1000 6000 0.25 1 114.0 - 1sma160z 160a 160 1.6 1100 6500 0.25 1 121.6 - 1sma180z 180a 180 1.4 1200 7000 0.25 1 136.8 - 1sma200z 200a 200 1.2 1500 8000 0.25 1 152.0 - notes: 1. tolerance and type number designation. the type numbers losted 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 messured at 90 seconds while maintaining the lead temperat ure(t l ) at 30 1 , from the diode body 4. zener impedance (zz) derivation. the zener impedance is derives from the 60 cycle ac voltage, which results when an accurren t having and rms value equal to 10% of the dc zener current (i zt or i zk ) is superimposed on i zt or i zk 5. surge current (i r ) non-repetitive. the rating listd in the electrical chatacteristics table is maximum peak, non-repetitive, reverse surge curre nt of 1/2 square wave or equivalent sine wave pulse of 1/120 second duration superimposed on the test current, i zt per jedec registration; however, actual device c apability is as described in figure 10 version:i13 surge current t a =25 leakage current i r @v r max. electrical characteristics (ta=25 unless otherwise noted) device (note 1) zener impedance (note 2) (note 3) test current device marking code nominal zener voltage z zk @i zk free datasheet http:///
version:i13 ratings and characteristic curves (1sma4737 thru 1sma200z) 0 0.25 0.5 0.75 1 1.25 1.5 0 25 50 75 100 125 150 p d , maximum power dissipation (watts) ambient temperature( ) fig. 1 power temperature derating curve 1 10 100 1000 110100 zz, dynamic impedance ( ? ) iz, zener current(ma) fig.4 effect of zener voltage on zener impedance ta=25 iz(rms)=0.1 iz(dc) f=1khz iz = 1ma 5 ma 20ma 1 10 100 1000 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 if, forward current (ma) v f , forward voltage (v) fig. 2 typical forward characteristics minimum maximum 70 150 25 0 1 10 100 1000 0 1 10 100 zz, dynamic impedance ( ? ) iz, zener current (ma) fig.3 effect of zener current on zener impedance ta=25 iz(rms)=0.1 iz(dc) f=1khz 47v 27v 0.8v 0.001 0.01 0.1 1 10 100 1000 10000 3456789101112131415 ir, leakage current(ua) vz, nominal zener voltage(v) fig.5 typical leakage current typical leakage current at 80% of nominal breakdown voltage 125 25 free datasheet http:///
version:i13 ratings and characteristic curves (1sma4737 thru 1sma200z) 10 100 1000 1 10 100 c, capacitance(pf) vz, forward voltage (v) fig.6 typical capacitance versus vz 50% of breakdown 0v bias 1.0v bias -4 -2 0 2 4 6 8 10 12 23456789101112 vz, temperature coefficient (mv/ ) vz, zener voltage(v) fig. 7 temperature coefficients a-range for units to 12 volts range vz@ izt 1 10 100 10 100 vz, temperature coefficient (mv/ ) vz, zener voltage(v) fig.8 temperature coefficients range vz@ izt b-range for units 12 to 100 volts -4 -2 0 2 4 6 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 vz, temperature coefficient (mv/ ) vz, zener voltage(v) fig. 9 effect of zener current note:below 3 voltage above a volts changes in zener current not affect temperature vz@ izt ta=25 0.01ma 1 ma 20ma 1 10 100 0.01 0.1 1 10 100 1000 p pk , peak surge power watts pw, pulse width (ms) fig.10 maximum surge power 20% duty cycle 11v-91v non-repetitive 10% duty cycle 5% duty cycle 0.8v-10v non-repetitive rectangular waveform ta=25 prior to initial pulse free datasheet http:///
sma r3 sma r2 sma m2 folded sma f3 folded sma f2 folded sma f4 c sma e3 c sma e2 tape & reel specification abcdngt 2.0 0.4 +0.5;-0.2 min 1.0 +0.8;-0 max 7" 12mm 178 1.9 13 21 62 12.2 14.6 abcdngt max 0.5 0.5 min 0.5 +2.0;-0 max 13" 12mm 330 2 13 20.2 75 12.4 18.4 unit (mm) note: "x" is device code from "4737" thru "200z". reel size tape size reel size tape size f2g 7.5k / 13" plastic reel f4g 1.8k / 7" reel e3g 7.5k / 13" reel e2g 1sma"xxxx" (note) 1.8k / 7" reel r3g 7.5k / 13" reel r2g 7.5k / 13" plastic reel m2g 1.8k / 7" reel f3g 7.5k / 13" reel ordering information part no. package packing packing code packing code (green) free datasheet http:///
symbol a b c d e min max min max a 1.27 1.58 0.050 0.062 b 2.29 2.83 0.090 0.111 c 4.06 4.60 0.160 0.181 d 1.99 2.50 0.078 0.098 e 0.90 1.41 0.035 0.056 f 0.15 0.31 0.006 0.012 g 0.10 0.20 0.004 0.008 h 4.95 5.33 0.195 0.210 p/n = specific device code g = green compound yw = date code 4.43 package outline dimensions dim. unit(mm) unit(inch) marking diagram suggested pad layout unit(mm) 1.78 1.51 3.92 2.41 free datasheet http:///
|
