AZD27C21
VOLTAGE REGULATOR ZENER DIODES
27V
1.0W
P
D
, Power Dissipation (mW)
C
J
, Junction Capacitance (pF)
1200
1000
800
600
400
200
0
0
25
50
75
100
125
150
1000
100
10
1
0.1
1
10
100
T
A
, Ambient Temperature (°C)
V
R
, Reverse Bias Voltage (V)
Fig.1 Power Derating Curve
Fig.2 Typical Junction Capacitance
I
R
, Leakage Current (nA)
180
160
140
120
100
80
60
40
20
0
0
T
J
= 25°C
I
F
, Forward Current (A)
200
1
T
J
= 150°C
0.1
T
J
= 125°C
T
J
= 75°C
T
J
= 25°C
0.01
0.4
0.5
0.6
0.7
0.8
0.9
1
5
10
15
20
25
V
R
, Reverse Voltage (V)
V
F
, Forward Voltage (V)
a
Fig.3 Typical Leakage Characteristics
Fig.4 Typical Forward Characteristics
I
Z
, Zener Current (mA)
s
Z
, TEMPERATURE
COEFFICIENT(mV/°C)
50
45
40
35
30
25
20
15
10
5
0
0
100
T
J
= 25°C
T
J
= 25 to 150 °C
10
1
5
10
15
20
25
0.1
1
10
100
V
Z
, Zener Voltage (V)
I
Z
, Zener Current (mA)
Fig.5 Typical Zener Characteristics
Fig.6
Temperature coefficient as a function of
working current; typical values.
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