BB 555-02V
Sep-18-20001
Silicon Tuning Diode
For UHF-TV-tuners
High capacitance ratio
Low series inductance
Low series resistance
Extremely small plastic SMD package
Excellent uniformity and matching due to
"in-line" matching assembly procedure
1VES05991
2
Type Marking Pin Configuration Package
BB 555-02V unmatched
BB 555-02V inline matched
BB
BB
1 = C
1 = C
2 = A
2 = A
SC-79
SC-79
Maximum Ratings
Parameter Symbol Value Unit
Diode reverse voltage VR30 V
Peak reverse voltage (R
5k
)VRM 35
Forward current IF20 mA
Operating temperature range Top -55 ... 150 °C
Storage temperature Tst
g
-55 ... 150
BB 555-02V
Sep-18-20002
Electrical Characteristics at TA = 25°C, unless otherwise specified.
Parameter Symbol Values Unit
min. typ. max.
DC characteristics
Reverse current
VR = 30 V
IR- - 10 nA
Reverse current
VR = 30 , TA = 85 °C
IR- - 200
AC characteristics
Diode capacitance
VR = 1 V, f = 1 MHz
VR = 2 V, f = 1 MHz
VR = 25 V, f = 1 MHz
VR = 28 V, f = 1 MHz
CT
17.5
14.1
2.05
1.9
18.7
15
2.24
2.1
20
16.1
2.4
2.3
pF
Capacitance ratio
VR = 2 V, VR = 25 V, f = 1 MHz
CT2/CT25 6 6.7 7.5 -
Capacitance ratio
VR = 1 V, VR = 28 V, f = 1 MHz
CT1/CT28 8.2 8.9 9.8
Capacitance matching1)
VR = 1 V, VR = 28 V, 1 MHz, 4 diodes sequence
VR = 1 V, VR = 28 V, 1 MHz, 7 diodes sequence
CT/CT
-
-
0.15
0.25
1
2
%
Series resistance
VR = 1 V, f = 1 GHz
rs- 0.58 -
Series inductance Ls- 0.6 - nH
1) In-line matching. For details please refer to Application Note 047
BB 555-02V
Sep-18-20003
Diode capacitance CT = f (VR)
f = 1MHz
0 5 10 15 20 V30
VR
0
2
4
6
8
10
12
14
16
pF
20
C
T
Temperature coefficient of the diode
capacitance TCc = f (VR)
10 0 10 1 10 2
V
VR
-5
10
-4
10
-3
10
1/°C
T
Cc
Reverse current IR = f (TA)
VR = 28V
-30 -10 10 30 50 70 °C 100
TA
0
10
1
10
2
10
3
10
pA
I
R
Reverse current IR = f (VR)
TA = Parameter
10 0 10 1 10 2
V
VR
-1
10
0
10
1
10
2
10
3
10
pA
I
R
25°C
85°C
BB 555-02V
Sep-18-20004
Normalized diode capacitance
C(TA) / C(25°C)= f (TA)
f = 1MHz, VR = Parameter
-30 -10 10 30 50 70 °C 110
TA
0.96
0.98
1.00
1.02
1.04
-
1.08
C
TA
/ C
25
1V
2V
25V
