1N5221B Datasheet, PDF (1/3 Pages) Vishay Siliconix – Silicon Z-Diodes

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ZENER DIODES
1N5221B - - - 1N5279B
POWER DISSIPATION: 500 mW
FEATURES
Silicon planar power zener diodes
Standard Zener voltage tolerance is ±5%. With a "B"
suffix. Other tolerances are available upon request.
DO-35(GLASS)
MECHANICAL DATA
Case:DO-35, Glass Case
Terminals: Solderable per MIL-STD-202, Method 208
Polarity: Cathode Band
Marking: Type Number
Approx. Weight: 0.13 grams.
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 ambient temperature unless otherwise specified.
Single phase,half wave,60 Hz,resistive or inductive load. For capacitive load,derate by 20%.
SYMBOL
VALUE
Zener current (see Table "Characteristics")
Pow er dissipation at T_amb=25
Ptot
500¹⁾
Junction temperature
TJ
175
Storage temperature range
Ts
-55---+175
UNIT
mW
SYMBOL
MIN
TYP
Thermal resistance junction to ambient
R_θJA
Forw ard voltage at IF=200mA
V_F
NOTES: (1) Valid provided that leads at a distance of 10 mm from case are kept at ambient temperature.
Document Number 0284001
BLGALAXY ELECTRICAL
MAX
UNIT
300¹⁾
/W
1.2
V
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