Tuner Diodes
FEATURES
MECHANICAL DATA
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 C
ambient temperature unless otherwise specified
Dimensions in inches and (millimeters)
SOD-123
.022 (0.55)
m
a
x.
.00
4
(
0
.1)
.1
12
(
2
.8
5)
.1
52
(
3
.8
5)
.067 (1.70)
m
a
x. .0
53
(
1
.3
5)
min. .010 (0.25)
Cathode Mark
m
a
x
.
.
006
(
0
.1
5)
Top View
.1
40
(
3
.5
5)
.1
00
(
2
.5
5)
.055 (1.40)
Case: SOD-123 Plastic Case
Weight: approx. 0.01 g
4/98
268
BB729
Symbol
Value
Unit
Reverse Voltage
V
R
32
V
Ambient Temperature
T
amb
125
C
Storage Temperature Range
T
S
55 to +125
C
Silicon epitaxial planar capacitance diodes with
very wide effective capacitance variation
for tuning the whole range of VHF CTV tun-
ers.
These diodes are available as singles or as matched sets of
two or more units according to
the tracking condition described in the table
of characteristics.
This diode is also available in SOD-323 case
with the type designation BB729S.
ELECTRICAL CHARACTERISTICS
Ratings at 25 C
ambient temperature unless otherwise specified
269
BB729
Symbol
Min.
Typ.
Max.
Unit
Reverse Breakdown Voltage
at I
R
= 100
A
V
(BR)R
32
V
Leakage Current
at V
R
= 30 V
I
R
10
nA
Capacitance f = 1 MHz
at V
R
= 28 V
at V
R
= 1 V
C
tot
C
tot
2.4
36.0
2.9
42.0
pF
pF
Effective Capacitance Ratio, f = 1 MHz
at V
R
= 1 to 28 V
C
tot
(1 V)
C
tot
(28V)
13.5
Series Resistance
at f = 470 MHz, C
tot
= 25 pF
r
s
0.80
Series Inductance
L
s
2.5
nH
For any two of six consecutive diodes in the carrier tape, the maximum capacitance deviation in the reverse
bias voltage of V
R
= 0.5 to 28 V is max. 2.5%
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