1N957 Datasheet, PDF (1/2 Pages) Semtech Corporation – SILICON PLANAR ZENER DIODES

NEW PRODUCT
NEW PRODUCT
NEW PRODUCT
1N957 THRU 1N978
ZENER DIODES
DO-35
FEATURES
♦ Silicon Planar Power Zener Diodes
♦ Standard Zener voltage tolerance is ±5% for
“B” suffix. Other tolerances are available upon
request.
max. ∅.079 (2.0)
Cathode
Mark
max. ^âˆ.020 (0.52)
Dimensions are in inches and (millimeters)
MECHANICAL DATA
Case: DO-35 Glass Case
Weight: approx. 0.13 g
MAXIMUM RATINGS
Ratings at 25°C ambient temperature unless otherwise specified.
Zener Current (see Table “Characteristics”)
Power Dissipation at TL = 75°C
Junction Temperature
Storage Temperature Range
NOTES:
(1) TL is measured 3/8” from body.
SYMBOL
Ptot
Tj
TS
Thermal Resistance
Junction to Ambient Air
Forward Voltage
at IF = 200 mA
SYMBOL
RthJA
MIN.
–
VF
–
NOTES:
(1) Valid provided that leads at a distance of 3/8” from case are kept at ambient temperature.
VALUE
UNIT
500⁽¹⁾
mW
175
°C
– 65 to +175
°C
TYP.
MAX.
UNIT
–
300⁽¹⁾
°C/W
–
1.5
Volts
1/6/98