Luguang DL4740A Zener diode Datasheet

DL4727A-DL4761A
Zener Diode
MELF
Features
1. High reliability
2. Very sharp reverse characteristic
3. Low reverse current level
4. VZ-tolerance±5%
Applications
Dimensions in inches and (millimeters)
Voltage stabilization
Absolute Maximum Ratings
Tj=25℃
Parameter
Test Conditions
Symbol
Value
Unit
PV
1
W
Z-current
IZ
PV/VZ
mA
Junction temperature
Tj
200
℃
Tstg
-65~+175
℃
Symbol
Value
Unit
RthJA
100
K/W
Power dissipation
Type
Tamb≤50℃
Storage temperature range
Maximum Thermal Resistance
Tj=25℃
Parameter
Junction ambient
Test Conditions
I=9.5mm(3/8”) TL=constant
Electrical Characteristics
Tj=25℃
Parameter
Forward voltage
Test Conditions
IF=200mA
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Type
Symbol
Min
Typ
VF
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Max
Unit
1.2
V
DL4727A-DL4761A
Zener Diode
Type
DL4727A
DL4728A
DL4729A
DL4730A
DL4731A
DL4732A
DL4733A
DL4734A
DL4735A
DL4736A
DL4737A
DL4738A
DL4739A
DL4740A
DL4741A
DL4742A
DL4743A
DL4744A
DL4745A
DL4746A
DL4747A
DL4748A
DL4749A
DL4750A
DL4751A
DL4752A
DL4753A
DL4754A
DL4755A
DL4756A
DL4757A
DL4758A
DL4759A
DL4760A
DL4761A
VZnom
V
3.0
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
1)
IZT
mA
83
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
for
rzjT
Ω
<10
<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
rzjK at
Ω
<400
<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
IZK
mA
1
1
1
1
1
1
1
1
1
1
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
IR
μA
<100
<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
at
VR
V
1
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
1) Based on DC-measurement at thermal equilibrium while maintaining the lead temperature(TL)at 30℃,
9.5mm(3/8”) from the diode body.
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DL4727A-DL4761A
Zener Diode
Characteristics (Tj=25℃ unless otherwise specified)
Symbol
Parameter
Vz
Reverse zener voltage @ IZT
IZT
Reverse current
ZZT
Maximum zener impedance @ IZT
IZK
Reverse current
ZZK
Maximum zener impedance @ IZK
IR
Reverse leakage current @ VR
VR
Breakdown voltage
IF
Forward current
VF
Forward voltage @ IF
Figure 1. Zener voltage regulator
Figure 2. Temperature coefficients
(-55℃ to +150℃ temperature range; 90% of the units are in the ranges indicated)
Figure 3. Effect of zener current on zener impedance
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Figure 4. Effect of zener voltage on zener impedance
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