Nov-07-2002
1
BB545 /BB565...
Silicon Variable Capcitance Diode
For UHF-TV-tuners
High capacitance ratio
Low series inductance
Low series resistance
Excellent uniformity and matching due to
"in-line" matching assembly procedure
BB545
BB565/-02V
1
2
Type
Package
Configuration
L
S
(nH) Marking
BB545
BB565
BB 565-02V
SOD323
SCD80
SC79
single
single
single
1.8
0.6
0.6
white U
CC
C
Maximum Ratings at T
A
= 25C, unless otherwise specified
Parameter
Symbol
Value
Unit
Diode reverse voltage
V
R
30
V
Peak reverse voltage
R
5k
V
RM
35
Forward current
I
F
20
mA
Operating temperature range
T
op
-55 ... 150
C
Storage temperature
T
stg
-55 ... 150
Nov-07-2002
2
BB545 /BB565...
Electrical Characteristics at T
A
= 25C, unless otherwise specified
Parameter
Symbol
Values
Unit
min.
typ.
max.
DC Characteristics
Reverse current
V
R
= 30 V
V
R
= 30 V, T
A
= 85 C
I
R
-
-
-
-
10
200
nA
AC Characteristics
Diode capacitance
V
R
= 1 V, f = 1 MHz
V
R
= 2 V, f = 1 MHz
V
R
= 25 V, f = 1 MHz
V
R
= 28 V, f = 1 MHz
C
T
18.5
13.2
1.85
1.8
20
14.8
2.07
2
21.5
16.4
2.28
2.2
pF
Capacitance ratio
V
R
= 1 V, V
R
= 28 V, f = 1 MHz
C
T1
/C
T28
9
10
11
-
Capacitance ratio
V
R
= 2 V, V
R
= 25 V, f = 1 MHz
C
T2
/C
T25
6.3
7.2
8.1
Capacitance matching
1)
V
R
= 1V to 28V, f = 1 MHz, 7 diodes sequence,
BB545
V
R
= 1V to 28V, f = 1 MHz, 4 diodes sequence,
BB565/ -02V
V
R
= 1V to 28V, f = 1 MHz, 7 diodes sequence,
BB565/ -02V
C
T
/C
T
-
-
-
-
0.5
0.7
2.5
1.5
2
%
Series resistance
V
R
= 3 V, f = 470 MHz
r
S
-
0.6
-
1
For details please refer to Application Note 047
PDF 
ZIP
