1N957 Datasheet, PDF (1/3 Pages) Semtech Corporation – SILICON PLANAR ZENER DIODES

Features
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
upon request.
1N957 THRU 1N978
SILICON PLANAR ZENER DIODES
D IM E N S IO N S
inches
mm
DIM
Note
Min.
Max.
Min.
Max.
A
-
0.154
-
3.9
B
-
0.075
-
1.9
C
-
0.020
-
0.52
D
1.083
-
27.50
-
Absolute Maximum Ratings (T_a=25 )
Symbols
Zener current see Table "Characteristics"
Power dissipation at T_amb=50
P_tot
Junction temperature
T_j
Storage temperature range
T_S
Note:
(1) Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case.
Values
400 ¹⁾
175
-65 to +175
Units
mW
Characteristics at T_amb=25
Symbols
Min.
Thermal resistance
junction to ambient Air
R_thA
-
Forward voltage at I_F=200mA
V_F
-
Note:
(1) Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case.
Typ.
-
-
Max.
0.3 ¹⁾
1.5
Units
K/mW
V
1