1N957.
.
.
1N978
SILICON PLANAR ZENER DIODES
Standard Zener
voltage tolerance is ± 20%.
Add suffix "A" for ± 10% tolerance and suffix "B" for ± 5% tolerance.
Other tolerances, non standard and higher Zener
voltages are upon request.
Max.
0.
5
Max.
1.
9
Min.
27.
5
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 (Ta = 25 OC) Parameter
Symbol
Value
Unit
Power Dissipation
Ptot
500 1)
mW
Junction Temperature
Tj
175
OC
Storage Temperature Range
TStg
- 65 to + 175
OC
1) Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case
Characteristics at Ta = 25 OC Para...