* High Reliability
* Very Sharp Reverse Characteristic
* Low Reverse Current Level
* Vz-Tolerance 5%
Features:
WEITRON
http://www.weitron.com.tw
DL4728A thru DL4761A
SMALL SIGNAL
ZENER DIODES
1.0 WATTS
MELF
Unit: mm
MELF Outline Dimensions
A
B
C
Dim
A
B
C
Min
4.80
2.40
0.46
Max
5.20
2.67
0.60
MELF
* Voltage Stabillization
Applications:
Lead(Pb)-Free
P b
Surface Mount Zener Diodes
1/3
24-Oct-05
WEITRON
http://www.weitron.com.tw
DL4728A thru DL4761A
Absolute Maximum Ratings
(T
j
=25C)
Parameter
Parameter
Parameter
Symbol
Value
Value
Unit
Power dissipation
Tamb 50C
P V
1
W
Z-current
IZ
P
V
/V
Z
mA
Junction temperature
T j
200
C
Storage temperature range
T stg
-65~+175
C
Maximum Thermal Resistance
(T
j
=25C)
Symbol
Unit
Junction ambient
I=9.5mm (3/8") T L=constant
R
JA
100
K/W
Electrical Characteristics
(T
j
=25C)
Symbol
Min Typ
Max
Unit
Forward voltage
IF=200mA
VF
1.2
-
-
V
2/3
24-Oct-05
WEITRON
http://www.weitron.com.tw
DL4728A thru DL4761A
V
Znom
1)
I
ZT
for
r
zjT
r
zjK
at
I
ZK
I
R
at
V
R
Type
V
mA
mA
A
V
DL4728A
3.3
76
<10
<400
1
<100
1
DL4729A
3.6
69
<10
<400
1
<100
1
DL4730A
3.9
64
<9
<400
1
<50
1
DL4731A
4.3
58
<9
<400
1
<10
1
DL4732A
4.7
53
<8
<500
1
<10
1
DL4733A
5.1
49
<7
<550
1
<10
1
DL4734A
5.6
45
<5
<600
1
<10
2
DL4735A
6.2
41
<2
<700
1
<10
3
DL4736A
6.8
37
<3.5
<700
1
<10
4
DL4737A
7.5
34
<4.0
<700
0. 5
<10
5
DL4738A
8.2
31
<4.5
<700
0. 5
<10
6
DL4739A
9.1
28
<5.0
<700
0. 5
<10
7
DL4740A
10
25
<7
<700
0.25
<10
7.6
DL4741A
11
23
<8
<700
0.25
<5
8.4
DL4742A
12
21
<9
<700
0.25
<5
9.1
DL4743A
13
19
<10
<700
0.25
<5
9.9
DL4744A
15
17
<14
<700
0.25
<5
11.4
DL4745A
16
15.5
<16
<700
0.25
<5
12.2
DL4746A
18
14
<20
<750
0.25
<5
13.7
DL4747A
20
12.5
<22
<750
0.25
<5
15.2
DL4748A
22
11.5
<23
<750
0.25
<5
16.7
DL4749A
24
10.5
<25
<750
0.25
<5
18.2
DL4750A
27
9.5
<35
<750
0.25
<5
20.6
DL4751A
30
8.5
<40
<1000
0.25
<5
22.8
DL4752A
33
7.5
<45
<1000
0.25
<5
25.1
DL4753A
36
7.0
<50
<1000
0.25
<5
27.4
DL4754A
39
6.5
<60
<1000
0.25
<5
29.7
DL4755A
43
6.0
<70
<1500
0.25
<5
32.7
DL4756A
47
5.5
<80
<1500
0.25
<5
35.8
DL4757A
51
5.0
<95
<1500
0.25
<5
38.8
DL4758A
56
4.5
<110
<2000
0.25
<5
42.6
DL4759A
62
4.0
<125
<2000
0.25
<5
47.1
DL4760A
68
3.7
<150
<2000
0.25
<5
51.7
DL4761A
75
3.3
<175
<2000
0.25
<5
56
1) Based on DC-measurement at thermal equilibrium while maintaining the lead temperature(T
L
)at 30,
9.5mm(3/8") from the diode body.
2) Suffix "A" For 5%.
3/3
24-Oct-05
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