GOOD-ARK 1N978

1N957 THRU 1N978
SILICON PLANAR ZENER DIODES
Features
Silicon Planar Zener Diodes
20%. Add suffix “A”
Standard Zener voltage tolerance is
for
10% tolerance and suffix “B” for
5% tolerance.
Other tolerances, non standard and higher Zener voltages
upon request.
DIM ENSIONS
inches
DIM
Absolute Maximum Ratings
(Ta=25
mm
Min.
Max.
Min.
Max.
A
-
0.154
-
3.9
B
-
0.075
-
1.9
C
-
0.020
-
0.52
D
1.083
-
27.50
-
)
Symbols
Values
Units
Zener current see Table "Characteristics"
Power dissipation at Tamb=50
Ptot
400
Junction temperature
Tj
175
Storage temperature range
TS
-65 to +175
1)
mW
Note:
(1) Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case.
Characteristics
at Tamb=25
Symbols
Min.
Typ.
Thermal resistance
junction to ambient Air
RthA
-
-
Forward voltage at IF=200mA
VF
-
-
Note:
(1) Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case.
1
Max.
Units
0.3
K/mW
1)
1.5
V
Note
Zener voltage range
Type
1)
Dynamic resistance
Vznom
IZT
V
mA
1N957
6.8
18.5
4.5
1N958
7.5
16.5
1N959
8.2
1N960
9.1
1N961
Typical
temperature
coefficient
rzjT and rzjk at Izk
Maximum reverse leakage currrent
IR
2)
Maximum
regulator
current
Test - Voltage
Suffix A
Suffix B
IZM
mA
(%/
)
uA
V
V
mA
700
1.0
0.050
150
4.9
5.2
47
5.5
700
0.5
0.058
75
5.4
5.7
42
15
6.5
700
0.5
0.062
50
5.9
6.2
38
14
7.5
700
0.5
0.068
25
6.6
6.9
35
10
12.5
8.5
700
0.25
0.075
10
7.2
7.6
32
1N962
11
11.5
9.5
700
0.25
0.076
5
8.0
8.4
28
1N963
12
10.5
11.5
700
0.25
0.077
5
8.6
9.1
26
1N964
13
9.5
13
700
0.25
0.079
5
9.4
9.9
24
1N965
15
8.5
16
700
0.25
0.082
5
10.8
11.4
21
1N966
16
7.8
17
700
0.25
0.083
5
11.5
12.2
19
1N967
18
7.0
21
750
0.25
0.085
5
13.0
13.7
17
1N968
20
6.2
25
750
0.25
0.086
5
14.4
15.2
15
1N969
22
5.6
29
750
0.25
0.087
5
15.8
16.7
14
1N970
24
5.2
33
750
0.25
0.088
5
17.3
18.2
13
1N971
27
4.6
41
750
0.25
0.090
5
19.4
20.6
11
1N972
30
4.2
49
1000
0.25
0.091
5
21.6
22.8
10
1N973
33
3.8
58
1000
0.25
0.092
5
23.8
25.1
9.0
1N974
36
3.4
70
1000
0.25
0.093
5
25.9
27.4
8.5
1N975
39
3.2
80
1000
0.25
0.094
5
28.1
29.7
7.8
1N976
43
3.0
93
1500
0.25
0.095
5
31.0
32.7
7.0
1N977
47
2.7
105
1500
0.25
0.095
5
33.8
35.8
6.4
1N978
51
2.5
125
1500
0.25
0.096
5
36.7
38.8
5.9
Notes:
(1) Test with pulse tp=20ms.
(2) Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case.
2
RATINGS AND CHARACTERISTIC CURVES
3