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1N4745 Dataheets PDF



Part Number 1N4745
Manufacturers LGE
Logo LGE
Description Zener Diodes
Datasheet 1N4745 Datasheet1N4745 Datasheet (PDF)

Features Silicon planar power zener diodes For use in stabilizing and clipping circuits with high power rating. Standard zener voltage tolerance is ±10%. Add suffix "A" for ±5% tolerance. other zener voltage and tolerances are available upon request. Mechanical Data Cas e:DO-41 Terminals: solderable per MIL-STD-202, method 208 Polarity: cathode band Marking: type number Approx. weight: 0.35 grams. 1N4728-1N4764 Zener Diodes POWER DISSIPATION: 1.0 W DO-41 Dimensions in inches and (millimeters) .

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Features Silicon planar power zener diodes For use in stabilizing and clipping circuits with high power rating. Standard zener voltage tolerance is ±10%. Add suffix "A" for ±5% tolerance. other zener voltage and tolerances are available upon request. Mechanical Data Cas e:DO-41 Terminals: solderable per MIL-STD-202, method 208 Polarity: cathode band Marking: type number Approx. weight: 0.35 grams. 1N4728-1N4764 Zener Diodes POWER DISSIPATION: 1.0 W DO-41 Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 ambient temperature unless otherwise specified. Zener current (see Table "Characteristics") Pow er dissipation @ Tamb 50 Z-current Junction temperature Storage temperature range Junction ambient I=9.5mm(3/8 ), TL=constant SYMBOL VALUE PDiss IZ TJ Ts RThJA 1.01) PV/VZ 200 -55---+200 100 Forw ard voltage at IF=200mA SYMBOL VF MIN TYP MAX 1.2 UNIT W mA K/W UNIT V http://www.luguang.cn mail:[email protected] 1N4728-1N4764 Zener Diodes ELECTRICAL CHARACTERISTICS (TA=25 ) Type Nominal zener voltage 1) V z@IZT Tes t current Maximum dynamic impedance IZT ZZT@IZT ZZK@IZK IZK Maximum reverse leakage current IR @V R Max surge current 8.3ms IR@Tamb =25 Max imum regulator current 2) IZM @Tamb =50 1N4728 1N4729 1N4730 1N4731 1N4732 1N4733 1N4734 1N4735 1N4736 1N4737 1N4738 1N4739 1N4740 1N4741 1N4742 1N4743 1N4744 1N4745 1N4746 1N4747 1N4748 1N4749 1N4750 1N4751 1N4752 1N4753 1N4754 1N4755 1N4756 1N4757 1N4758 1N4759 1N4760 1N4761 1N4762 1N4763 1N4764 (V) 3.3 3.6 3.9 4.3 4.7 5.1 5.6 6.2 6.8 7.5 8.2 9.1 10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 62 68 75 82 91 100 (mA ) 76 69 64 58 53 49 45 41 37 34 31 28 25 23 21 19 17 15.5 14 12.5 11.5 10.5 9.5 8.5 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.7 3.3 3.0 2.8 2.5 (Ω) (Ω) (mA) 10 400 1.0 10 400 1.0 9 400 1.0 9 400 1.0 8 500 1.0 7 550 1.0 5 600 1.0 2 700 1.0 3.5 700 1.0 4.0 700 0.5 4.5 700 0.5 5.0 700 0.5 7 700 0.25 8 700 0.25 9 700 0.25 10 700 0.25 14 700 0.25 16 700 0.25 20 750 0.25 22 750 0.25 23 750 0.25 25 750 0.25 35 750 0.25 40 1000 0.25 45 1000 0.25 50 1000 0.25 60 1000 0.25 70 1500 0.25 80 1500 0.25 95 1500 0.25 110 2000 0.25 125 2000 0.25 150 2000 0.25 175 2000 0.25 200 3000 0.25 250 3000 0.25 350 3000 0.25 (μA ) 100 100 50 10 10 10 10 10 10 10 10 10 10 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 (V) 1 1 1 1 1 1 2 3 4 5 6 7 7.6 8.4 9.1 9.9 11.4 12.2 13.7 15.2 16.7 18.2 20.6 22.8 25.1 27.4 29.7 32.7 35.8 38.8 42.6 47.1 51.7 56.0 62.2 69.2 79.0 (mA ) 1380 1260 1190 1070 970 890 810 730 660 605 550 500 454 414 380 344 304 285 250 225 205 190 170 150 135 125 115 110 95 90 80 70 65 60 55 50 45 (mA ) 276 252 234 217 193 178 462 146 133 121 110 100 91 83 76 69 61 57 50 45 41 38 34 30 27 25 23 22 19 18 16 14 13 12 11 10 9 1)Based on dc_m easurem ent at theral equilibrium while m aitaining the lead tem perature (TL) at 30 +1 ,9.5m m (3/8")f rom the D iode body . 2)Valid prov ided that electrodes at a distance of 10 m m f orm case kept at am bient temperature. *)Additionnal m easurem ent of v oltage gruup 9v 1 to 75 at 95% VZMIN 35nA at TJ25 1N4728-1N4764 Zener Diodes Ratings AND Charactieristic Curves FIG.1 -- BREAKDOWN CHARACTERISTICS mA 5 10 15 20 100 25 30 V 80 IZ 60 40 20 1N4750 1N4749 1N4748 1N4747 1N4744 1N4742 1N4741 1N4739 1N4735 1N4733 1N4732 1N4731 1N4728 0 VZ FIG.2 -- ADMISSIBLE POWER DISSIPATION VERSUS AMBIENT TEMPERATURE W 1.0 0.8 Ptot 0.6 0.4 0.2 0 0 100 200 Tamb http://www.luguang.cn mail:[email protected] .


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