Transys
Electronics
L
I M I T E D
1N957B to 1N977B
DO- 35
Glass Axial Package
Hermetically Sealed Glass Package Zener Diodes
ABSOLUTE MAXIMUM RATINGS (Ta=25ºC unless specified otherwise )
DESCRIPTION
VALUE
UNIT
Zener Voltage
6.8 to 47
400
3.2
-65 to +175
V
mW
mW/ºC
ºC
Steady State Power Dissipation
Derating Factor above 50ºC
Operating and Storage Temperature
ELECTRICAL CHARACTERISTICS (Ta=25ºC unless specified otherwise )
VF < 1.5V max @ IF=200mA
Max Zener
Impedance
Device * Nominal
Zener
Test
Current
IZT
Max Reverse
Leakage Current
Max DC
Zener Current
Max. Surge
Current
(Recurrent)
IZ ( Surge)
Max Temp.
Coefficient
Voltage
Vz
(Note 1)
Zener
Voltage
VZ @ IZT
ZZK
ZZK
@
IR @ VR
ZZT
IZT
@
IZM
IZK
(Volts)
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
(mA)
18.5
16.5
15
(Volts)
5.2
5.7
6.2
6.9
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
% / ºC
+0.05
(W)
4.5
5.5
6.5
7.5
8.5
9.5
11.5
13
16
17
21
25
29
33
41
49
58
70
80
93
(W)
700
700
700
700
700
700
700
700
700
700
750
750
750
750
750
(mA)
1.0
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
(mA)
150
75
50
25
10
5
5
5
5
5
5
5
5
5
5
5
5
5
(mA)
55
50
45
41
38
32
31
28
25
24
20
18
16
15
13
12
11
10
9.5
8.8
7.9
(mA)
300
275
250
225
200
175
160
150
130
120
110
100
90
80
70
65
60
55
46
44
40
1N957B
1N958B
1N959B
1N960B
1N961B
1N962B
1N963B
1N964B
1N965B
1N966B
1N967B
1N968B
1N969B
1N970B
1N971B
1N972B
1N973B
1N974B
1N975B
1N976B
1N977B
+0.058
+0.065
+0.068
+0.075
+0.076
+0.077
+0.079
+0.082
+0.083
+0.085
+0.086
+0.087
+0.088
+0.090
+0.091
+0.092
+0.093
+0.094
+0.095
+0.095
14
12.5
11.5
10.5
9.5
8.5
7.8
7.0
6.2
5.6
5.2
4.6
4.2
3.8
3.4
3.2
3.0
2.7
1000 0.25
1000 0.25
1000 0.25
1000 0.25
1500 0.25
1500 0.25
36
39
43
47
5
5
5
105
Note (1) : Part No. suffix specifies the Tolerance of VZ
No Suffix = +/- 20% Suffix A = +/- 10%
Suffix B = +/- 5%
* Pulse Condition : 20mS < tp 50mS, Duty Cycle <2%