1N5221
THRU
1N5281
500 mW
Zener Diode
2.4 to 200 Volts
DO-35

Features
• Wide Voltage Range Available
• Glass Package
• High Temp Soldering: 250°C for 10 Seconds At Terminals
Maximum Ratings
• Operating Temperature: -55°C to +150°C
• Storage Temperature: -55°C to +150°C
• 500 mWatt DC Power Dissipation
• Power Derating: 4.0mW/°C above 50°C
• Forward Voltage @ 200mA: 1.1 Volts

DIMENSIONS
INCHES

MM

DIM MIN MAX MIN MAX NOTE
A --- .166 --- 4.2
B --- .079 --- 2.00
C --- .020 --- .52
D 1.000 --- 25.40 ---
Figure 2 - Derating Curve
Power Dissipation (mW) - Versus - Temperature °C
Temperature °C
0 50 100 150
mW
200
400
A
B
C
D
D
Cathode
Mark
Typical Capacitance (pf) – versus – Zener voltage (V
Z
)
Figure 1 - Typical Capacitance

0
100 200
1
10
100
pf
V
Z

At zero volts
At –2 Volts V
R

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