NTE618
Varactor
Silicon Tuning Diode for AM Radio
Description;
The NTE618 is a silicon varactor diode with a good linearity and high capacitance ratio that is capable
of beinf operated from a low voltage. This device is intended for use in AM receiver electronic tuning
applications.
Features:
D
High Capacitance Ratio: C
R
= 15.5 (Min)
D
Guaranteed Figure of Merit: Q = 200 (Min) @ V
R
= 1V, f = 1MHz
Absolute Maximum Ratings: (T
A
= +25
°
C unless otherwise specified)
Reverse Voltage, V
R
16V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Junction Temperature, T
J
+100
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
55
°
to +100
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics: (T
A
= +25
°
C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Breakdown Voltage
V
(BR)R
I
R
= 10
µ
A
16
V
Reverse Current
I
R
V
R
= 9V
100
nA
Interterminal Capacitance
C
1.2V
V
R
= 1.2V, f = 1MHz
420.0
459.1
pF
C
3.5V
V
R
= 3.5V, f = 1MHz
144.2
192.1
pF
C
6.0V
V
R
= 6.0V, f = 1MHz
45.71
60.91
pF
C
8.0V
V
R
= 8.0V, f = 1MHz
20.30
23.54
pF
Figure of Merit
Q
V
R
= 1V, f = 1MHz
200
Capacitance Ratio
C
R
C
1.2V
/C
8.0V
, f = 1MHz
15.5
matching Tolerance
C
m
(C
max
C
min
)/C
min
0.03
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