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BL
FEATURES
power rating.
GALAXY ELECTRICAL
ZENER DIODES
DL4728 - - - DL4764
POWER DISSIPATION: 1.0 W
Silicon planar power zener diodes For use in stabilizing and clipping circuits with high
MELF
Standard zener voltage tolerance is 10%. Add suffix "A" for 5% tolerance. other zener voltage and tolerances are available upon request.
MECHANICAL DATA
Case:MELF, glass case Terminals: solderable per MIL-STD-202, method 208 Polarity: cathode band Marking: type number Approx. weight: 0.25 grams.
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 ambient temperature unless otherwise specified.
SYMBOL
Zener current (see Table "Characteristics")
VALUE
UNIT
Pow er dissipation @ Tamb 50
PDiss IZ TJ Ts RThJA
1.01) PV/VZ 175
1)
W
Z-current
mA
Junction temperature
Storage temperature range
-55---+175 170
Junction ambient I=9.5mm(3/8 ), TL=constant
K/W
SYMBOL
Forw ard voltage at IF=200mA
MIN
TYP
MAX
1.2
UNIT
V
VF
1)Valid provided that electrodes re kept at ambient temperature.
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Document Number 0284021
BLGALAXY ELECTRICAL
1.
ELECTRICAL CHARACTERISTICS
Nominal zener voltage 1) Type V z@IZT (V ) DL4728 DL4729 DL4730 DL4731 DL4732 DL4733 DL4734 DL4735 DL4736 DL4737 DL4738 DL4739 DL4740 DL4741 DL4742 DL4743 DL4744 DL4745 DL4746 DL4747 DL4748 DL4749 DL4750 DL4751 DL4752 DL4753 DL4754 DL4755 DL4756 DL4757 DL4758 DL4759 DL4760 DL4761 DL4762 DL4763 DL4764 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 IZT (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 IZT@ZZT () 10 10 9 9 8 7 5 2 3.5 4.0 4.5 5.0 7 8 9 10 14 16 20 22 23 25 35 40 45 50 60 70 80 95 110 125 150 175 200 250 350 ZZK@IZK () 400 400 400 400 500 550 600 700 700 700 700 700 700 700 700 700 700 700 750 750 750 750 750 1000 1000 1000 1000 1500 1500 1500 2000 2000 2000 2000 3000 3000 3000 IZK
(m A)
(TA=25
)
Max surge current 8.3ms IR@Tamb =25 (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 Maximum regulator current 2) IZM @Tamb =50 (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
Test current
Maximum dynamic impedance
Maximum reverse leakage current IR (A ) 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
+1
@V R (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
1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.5 0.5 0.5 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
1)Based on dc_m easurem ent at theral equilibrium while m aitaining the lead tem perature (TL) at 30 2)Valid prov ided that electrodes at a distance of 10 m m f orm case kept at am bient tem perature. *)Additionnal m easurem ent of v oltage gruup 9v 1 to 75 at 95% V ZMIN 35nA at TJ25
,9.5m m (3/8")f rom the D iode body .
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Document Number 0284021
BLGALAXY ELECTRICAL
2.
RATINGS AND CHARACTERISTIC CURVES
FIG.1 -- BREAKDOWN CHARACTERISTICS
DL4728 - - - DL4764
mA 100
5
10
15
20
25
30 V
80
IZ
60
40
20
0
DL4731
DL4732
FIG.2 -- ADMISSIBLE POWER DISSIPATION VERSUS AMBIENT TEMPERATURE
W 1.0
DL4728
DL4733
DL4735
DL4742
DL4744
DL4747
DL4739
DL4741
DL4748
DL4749
DL4750
VZ
0.8 Ptot
0.6
0.4
0.2
0 0 100 Tamb 200ae
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Document Number 0284021
BLGALAXY ELECTRICAL
3.

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