3.3V - 100V Nominal
1.0W ZENER DIODE
Characteristic Symbol Value Unit
Zener Current (see Table page 2)
I
Z
Pd / V
Z
mA
Power Dissipation
Derate Above 50°C (Note 1)
P
d
1.0
6.67
W
mW/°C
Thermal Resistance - Junction to Ambient Air
R
qJA
170 °C/W
Forward Voltage @ I
F
= 200 mA
V
F
1.2 V
Operating and Storage Temperature Range
T
j
, T
STG
-65 to + 175 °C
Note: 1. Valid provided that leads are kept at T
L
@ 50°C
with lead length = 9.5mm (3/8”) from case.
2. EC Directive 2002/95/EC (RoHS) revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied where applicable,
see EU Directive Annex Notes 5 and 7.
Maximum Ratings
Mechanical Data
· 1.0 Watt Power Dissipation
· Zener Voltage
· Standard V
Z
Tolerance is 5%
· Lead Free Finish, RoHS Compliant
· Case: LL-41 / MELF
· Case Material: Glass. UL Flammability Classification Rating
94V-0
· Moisture Sensitivity: Level 1 per J-STD-020C
· Terminals: Finish ¾ Sn96.5Ag3.5. Solderable per
MIL-STD-202, Method 208
· Polarity: Cathode Band
· Marking: Type Number
· Weight: 0.25 grams (approximate)
Features
@ T
A
= 25°C unless otherwise specified
1 of 3
DL4728A - DL4764A
DL4728A - DL4764A
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Z ibo Seno Electronic Engineering Co., Ltd.
LL-41 / MELF
Type
Number
Nominal Zener
Voltage (Note 3)
Test
Current
Maximum Zener Impedance
(Note 4)
Maximum Reverse
Leakage Current
Max Surge
Current
8.3ms
Temperature
Coefficient
@ I
ZT
V
Z
@ I
ZT
I
ZT
Z
ZT
@ I
ZT
Z
ZK
@ I
ZK
I
ZK
I
R
@ V
R
I
ZS
(V) (mA) (W) (W) (mA) (µA) (V) (mA)
%/°C
DL4728A 3.3 76 10 400 1.0 100 1.0 1380 -0.08 to -0.05
DL4729A 3.6 69 10 400 1.0 100 1.0 1260 -0.08 to -0.05
DL4730A 3.9 64 9.0 400 1.0 50 1.0 1190 -0.07 to -0.02
DL4731A 4.3 58 9.0 400 1.0 10 1.0 1070 -0.07 to -0.01
DL4732A 4.7 53 8.0 500 1.0 10 1.0 970 -0.03 to +0.04
DL4733A 5.1 49 7.0 550 1.0 10 1.0 890 -0.01 to +0.04
DL4734A 5.6 45 5.0 600 1.0 10 2.0 810 0 to +0.045
DL4735A 6.2 41 2.0 700 1.0 10 3.0 730 +0.01 to +0.055
DL4736A 6.8 37 3.5 700 1.0 10 4.0 660 +0.015 to +0.06
DL4737A 7.5 34 4.0 700 0.5 10 5.0 605 +0.02 to +0.065
DL4738A 8.2 31 4.5 700 0.5 10 6.0 550 0.03 to 0.07
DL4739A 9.1 28 5.0 700 0.5 10 7.0 500 0.035 to 0.075
DL4740A 10 25 7.0 700 0.25 10 7.6 454 0.04 to 0.08
DL4741A 11 23 8.0 700 0.25 5.0 8.4 414 0.045 to 0.08
DL4742A 12 21 9.0 700 0.25 5.0 9.1 380 0.045 to 0.085
DL4743A 13 19 10 700 0.25 5.0 9.9 344 0.05 to 0.085
DL4744A 15 17 14 700 0.25 5.0 11.4 304 0.055 to 0.09
DL4745A 16 15.5 16 700 0.25 5.0 12.2 285 0.055 to 0.09
DL4746A 18 14 20 750 0.25 5.0 13.7 250 0.06 to 0.09
DL4747A 20 12.5 22 750 0.25 5.0 15.2 225 0.06 to 0.09
DL4748A 22 11.5 23 750 0.25 5.0 16.7 205 0.06 to 0.095
DL4749A 24 10.5 25 750 0.25 5.0 18.2 190 0.06 to 0.095
DL4750A 27 9.5 35 750 0.25 5.0 20.6 170 0.06 to 0.095
DL4751A 30 8.5 40 1000 0.25 5.0 22.8 150 0.06 to 0.095
DL4752A 33 7.5 45 1000 0.25 5.0 25.1 135 0.06 to 0.095
DL4753A 36 7.0 50 1000 0.25 5.0 27.4 125 0.06 to 0.095
DL4754A 39 6.5 60 1000 0.25 5.0 29.7 115 0.06 to 0.095
DL4755A 43 6.0 70 1500 0.25 5.0 32.7 110 0.06 to 0.095
DL4756A 47 5.5 80 1500 0.25 5.0 35.8 95 0.06 to 0.095
DL4757A 51 5.0 95 1500 0.25 5.0 38.8 90 0.06 to 0.095
DL4758A 56 4.5 110 2000 0.25 5.0 42.6 80 0.06 to 0.095
DL4759A 62 4.0 125 2000 0.25 5.0 47.1 70 0.06 to 0.095
DL4760A 68 3.7 150 2000 0.25 5.0 51.7 65 0.06 to 0.095
DL4761A 75 3.3 175 2000 0.25 5.0 56.0 60 0.06 to 0.095
Notes: 3. Measured under thermal equilibrium and dc (I
ZT
) test conditions.
4. The Zener impedance is derived from the 60 Hz ac voltage which results when an ac current having an rms value equal to
10% of the
Zener current (I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK
. Zener impedance is measured at two points to insure a
sharp knee on the breakdown curve and to eliminate unstable units.
Electrical Characteristics
@ T
A
= 25°C unless otherwise specified
2 of 3
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Z ibo Seno Electronic Engineering Co., Ltd.
DL4762A 82 3.0 200 3000 0.25 5.0 62.2 55 0.06 to 0.095
DL4763A 91 2.8 250 3000 0.25 5.0 69.2 50 0.06 to 0.095
DL4764A 100 2.5 350 3000 0.25 5.0 76.0 45 0.06 to 0.095
DL4728A - DL4764A