Description
Features
n 5 & 10% VOLTAGE
TOLERANCES AVAILABLE
Mechanical Dimensions
n WIDE VOLTAGE RANGE
n MEETS UL SPECIFICATION 94V-0
Maximum Ratings
LL4728...4764 Series
Data Sheet
1 Watt
ZENER DIODES (3.3V to 100V)
LL4728...4764 Series
Units
DC Power Dissipation with T
L
= > = 75 ...P
D
Lead Length = .375 Inches
Derate Above 50
Operating & Storage Temperature Range...T
J
, T
STRG
C
C
............................................. 1 ...............................................
............................................. 6.67 ...............................................
Watt
mW /
C
C
......................................... -65 to 100 ..........................................
Steady State Power Derating
Steady State Power (W)
Lead Temperature (
C)
Temperature Coefficients vs. Voltage
T
emperature
Coefficient (mV/
o
C)
Zener Voltage (V)
Typical Junction Capacitance
Junction Capacitance (pF)
Zener Voltage (V)
50% Vz Bias
0 V Bias
1 V Bias
Zener Current vs. Zener Voltage
Zener Voltage (V)
Zener Current (mA)
DO-213AB
(MELF)
Page 10-50
Data Sheet
1 Watt
ZENER DIODES (3.3V to 100V)
LL4728...4764 Series
C
NOTES: 1. For 10% Tolerance on Zener Voltage, Specify No Suffix. For 5% Tolerance,
Specify Suffix A. (Example: LL4728A = 3.3V +/- 5%)
2. T
A
= 25 unless otherwise specified. Measurements made at Thermal Equilibrium.
Nominal
Zener
Voltage
Test
Current
I
ZT
(mA)
Max. Zener Impedance
Max. Reverse
Leakage Current @
V
R
T
A
= 25
C
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
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
o
Z
ZT
@ I
ZT
(
)
Z
ZK
@ I
ZK
(
)
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
1500
1500
1500
1500
1500
2000
2000
2000
2000
3000
3000
3000
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
0.25
0.25
0.25
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
62.2
69.2
76
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
Part #
I
R
(
A)
V
R
(V)
Max.
Surge Current
Lead Length = .375". Thermal Resistance of Heat Sink = 30 / W, V
F
= 1.1V Max. @ I
F
= 200mA.
C
Electrical Characteristics @ 25
O
C.
I
ZK
(mA)
LL4728
LL4729
LL4730
LL4731
LL4732
LL4733
LL4734
LL4735
LL4736
LL4737
LL4738
LL4739
LL4740
LL4741
LL4742
LL4743
LL4744
LL4745
LL4746
LL4747
LL4748
LL4749
LL4750
LL4751
LL4752
LL4753
LL4754
LL4755
LL4756
LL4757
LL4758
LL4759
LL4760
LL4761
LL4762
LL4763
LL4764
10
10
9
9
8
7
5
2
3.5
4
4.5
5
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
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
Page 10-51
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