1N746...1N759
SILICON PLANAR ZENER DIODES
Standard Zener voltage tolerance is ± 10%. Add suffix
"A" for ± 5% tolerance. Other tolerances, non-
standard and higher Zener voltages are upon request.
Max. 0.5
Min. 27.5
Max. 1.9
Black
Cathode Band
Black
Part No.
Black
"ST" Brand
XXX
ST
Max. 3.9
Min. 27.5
Glass Case DO-35
Dimensions in mm
Absolute Maximum Ratings (T
a
= 25
O
C)
Parameter
Power Dissipation
Junction Temperature
Storage Temperature Range
1)
Symbol
P
tot
T
j
T
S
Value
500
1)
Unit
mW
O
175
- 65 to + 175
C
C
O
Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case
Characteristics at T
a
= 25
O
C
Parameter
Thermal Resistance Junction to Ambient Air
Forward Voltage
at I
F
= 200 mA
1)
Symbol
R
thA
V
F
Max.
0.3
1)
1.2
Unit
K/mW
V
Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case.
SEMTECH ELECTRONICS LTD.
®
(Subsidiary
of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
Dated : 13/06/2007
1N746...1N759
Zener Voltage Range
Type
V
znom
(V)
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
12
l
ZT
(mA)
20
20
20
20
20
20
20
20
20
20
20
20
20
20
1)
Maximum Zener
Impedance
Z
ZT
(Ω) at I
ZT
28
24
23
22
19
17
11
7
5
6
8
10
17
30
Maximum Reverse Leakage Current
I
R
at V
R
= 1 V
T
a
= 25
O
C
I
R
(µA)
10
10
10
2
2
1
1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
T
a
= 150
O
C
I
R
(µA)
30
30
30
30
30
20
20
20
20
20
20
20
20
20
2)
Maximum
Regulator
Current
I
ZM
(mA)
110
100
95
85
75
70
65
60
55
50
45
40
35
30
1N746
1N747
1N748
1N749
1N750
1N751
1N752
1N753
1N754
1N755
1N756
1N757
1N758
1N759
1)
2)
Tested with pulses tp = 20 ms
Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case.
500
Power Dissipation: Ptot (mW)
400
300
200
100
0
0
25
100
150
Ambient Temperature: Ta ( C)
O
200
Power Derating Curve
SEMTECH ELECTRONICS LTD.
®
(Subsidiary
of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
Dated : 13/06/2007
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