maximum ratings and electrical characteristics ratings at 25 o c ambient temperature unless otherwise specified. single phase, half wave, 60 hz, resistive or inductive load. for capacitive load, derate current by 20%. 1n4728a thru dimensions in millimeters rectifier specialists r dc components co., l td. technical specifica tions of glass silicon zener diodes features * voltage range:3.3v to 39v * double slug type construction 1n4754a mechanical data * case: glass sealed case * lead: mil-std-202e, method 208 guaranteed * polarity: color band denotes cathode end * mounting position: any * weight: 0.35 gram symbol value units zener current see table "characterisitics" power dissipation at t amb=25 o c ptot 1 (1) w junction t emperature tj 175 o c storage t emperature range t stg -55 to + 200 o c k/mw thermal resistance rtha - typ. junction to ambient air - min. 170 (1) max. volts forward voltage v f - typ. at if=200ma - min. 1 .2 max. 1)valid provided that leads are kept at ambient temperature at a distance of 10 mm from case. note: suffix "a" indicates zener voltage tolerance 5% do-41(g) max. 162
breakdown characteristics 1n47- series ma 240 200 160 120 80 0 5v 10v 15v 20v 25v 30v iz vz 27 24 22 20 15 12 11 9v1 7v5 6v8 6v2 5v6 5v1 4v7 4v3 3v9 3v3 r dc components co., l td. rating and characteristic curves (1n4728a thru 1n4754a) 1n4728a 3.3 76 10 400 1.0 100 1.0 1380 276 1n4729a 3.6 69 10 400 1.0 100 1.0 1260 252 1n4730a 3.9 64 9.0 400 1.0 50 1.0 1170 234 1n4731a 4.3 58 9.0 400 1.0 10 1.0 1085 217 1n4732a 4.7 53 8.0 500 1.0 10 1.0 965 193 1n4733a 5.1 49 7.0 550 1.0 10 1.0 890 178 1n4734a 5.6 45 5.0 600 1.0 10 2.0 810 162 1n4735a 6.2 41 2.0 700 1.0 10 3.0 730 146 1n4736a 6.8 37 3.5 700 1.0 10 4.0 660 133 1n4737a 7.5 34 4.0 700 0.5 10 5.0 605 121 1n4738a 8.2 31 4.5 700 0.5 10 6.0 550 110 1n4739a 9.1 28 5.0 700 0.5 10 7.0 500 100 1n4740a 10 25 7.0 700 0.25 10 7.6 454 91 1n4741a 11 23 8.0 700 0.25 5.0 8.4 414 83 1n4742a 12 21 9.0 700 0.25 5.0 9.1 380 76 1n4743a 13 19 10 700 0.25 5.0 9.9 344 69 1n4744a 15 17 14 700 0.25 5.0 11.4 304 61 1n4745a 16 15.5 16 700 0.25 5.0 12.2 285 57 1n4746a 18 14 20 750 0.25 5.0 13.7 250 50 1n4747a 20 12.5 22 750 0.25 5.0 15.2 225 45 1n4748a 22 11.5 23 750 0.25 5.0 16.7 205 41 1n4749a 24 10.5 25 750 0.25 5.0 18.2 190 38 1n4750a 27 9.5 35 750 0.25 5.0 20.6 170 34 1N4751A 30 8.5 40 1000 0.25 5.0 22.8 150 30 1n4752a 33 7.5 45 1000 0.25 5.0 25.1 135 27 1n4753a 36 7.0 50 1000 0.25 5.0 27.4 125 25 1n4754a 39 6.5 60 1000 0.25 5.0 29.7 115 23 nominal zener voltage v z@ i zt volts test current i zt ma maximum zener impedance z zt@ i zt z zt@ i zk ohms ohms i zk ma maximum reverse leakage current i r @ v r ua volts maximum regulator current i zm ma max. surge current i r ma 1.0 0.8 0.6 0.4 0.2 0 0 100 200 o c valid provided that leads are kept at ambient temperature at a distance of 10mm from case ptot tamb admissible power dissipation versus ambient temperature w power dissipation 163
|
