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%.
DL4728A
THRU
DL-41
Dimensions in millimeters
RECTIFIER SPECIALISTS
R
DC COMPONENTS CO., LTD.
TECHNICAL SPECIFICATIONS OF
GLASS SILICON ZENER DIODES
FEATURES
* Voltage Range:3.3V to 39V
MECHANICAL DATA
* Case: Glass sealed case
* Mounting position: Any
* Weight: 0.35 gram
* Double slug type construction
DL4754A
2.4+0.1
5.00.2
0.4
CATHODE MARK
* Terminals:Solder plated, solderable per
MIL-STD-750, Method 2026
* Polarity: Color band denotes cathode end
SYMBOL
VALUE
UNITS
Zener Current see Table "Characterisitics"
Power Dissipation at Tamb=25
o
C Ptot 1
(1)
W
Junction Temperature Tj 175
o
C
Storage Temperature Range Tstg -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%
300
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Breakdown characteristics
DL47-SERIES
mA
240
200
160
120
80
0
5V 10V 15V 20V 25V 30V
IZ
VZ
27
24
22
20
15
12
1
1
9V1
7V5
6V8
6V2
5V6
5V1
4V7
4V3
3V9
3V3
R
DC COMPONENTS CO., LTD.
RATING AND CHARACTERISTIC CURVES (DL4728A THRU DL4754A)
DL4728A 3.3 76 10 400 1.0 100 1.0 1380 276
DL4729A 3.6 69 10 400 1.0 100 1.0 1260 252
DL4730A 3.9 64 9.0 400 1.0 50 1.0 1170 234
DL4731A 4.3 58 9.0 400 1.0 10 1.0 1085 217
DL4732A 4.7 53 8.0 500 1.0 10 1.0 965 193
DL4733A 5.1 49 7.0 550 1.0 10 1.0 890 178
DL4734A 5.6 45 5.0 600 1.0 10 2.0 810 162
DL4735A 6.2 41 2.0 700 1.0 10 3.0 730 146
DL4736A 6.8 37 3.5 700 1.0 10 4.0 660 133
DL4737A 7.5 34 4.0 700 0.5 10 5.0 605 121
DL4738A 8.2 31 4.5 700 0.5 10 6.0 550 110
DL4739A 9.1 28 5.0 700 0.5 10 7.0 500 100
DL4740A 10 25 7.0 700 0.25 10 7.6 454 91
DL4741A 11 23 8.0 700 0.25 5.0 8.4 414 83
DL4742A 12 21 9.0 700 0.25 5.0 9.1 380 76
DL4743A 13 19 10 700 0.25 5.0 9.9 344 69
DL4744A 15 17 14 700 0.25 5.0 11.4 304 61
DL4745A 16 15.5 16 700 0.25 5.0 12.2 285 57
DL4746A 18 14 20 750 0.25 5.0 13.7 250 50
DL4747A 20 12.5 22 750 0.25 5.0 15.2 225 45
DL4748A 22 11.5 23 750 0.25 5.0 16.7 205 41
DL4749A 24 10.5 25 750 0.25 5.0 18.2 190 38
DL4750A 27 9.5 35 750 0.25 5.0 20.6 170 34
DL4751A 30 8.5 40 1000 0.25 5.0 22.8 150 30
DL4752A 33 7.5 45 1000 0.25 5.0 25.1 135 27
DL4753A 36 7.0 50 1000 0.25 5.0 27.4 125 25
DL4754A 39 6.5 60 1000 0.25 5.0 29.7 115 23
Nominal
Zener
Voltage
VZ@IZT
Volts
Test
Current
IZT
mA
Maximum Zener
Impedance
ZZT@IZT ZZT@IZK
Ohms Ohms
IZK
mA
Maximum Reverse
Leakage Current
IR @VR
uA Volts
Maximum
Regulator
Current
IZM
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
Max. Surge
Current
IR
mA
W
301
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