BB731 and BB731S
Vishay Semiconductors
formerly General Semiconductor
Document Number 88157
www.vishay.com
15-May-02
1
Tuner Diodes
Features
Silicon epitaxial planar capacitance diodes with
very wide effective capacitance variation for tuning
the VHF range 41 ... 170 MHz in hyperband
television tuners.
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.
Maximum Ratings and Thermal Characteristics
(T
C
= 25C unless otherwise noted)
Parameter
Symbol
Value
Unit
Reverse Voltage
V
R
32
V
Junction Temperature
T
J
125
C
Storage Temperature Range
T
S
55 to +125
C
.022 (0.55)
.
112 (2.
85)
.
152 (3.
85)
.067 (1.70)
.
053 (1.
35)
ma
x
.
.010 (0.25)
min.
Cathode Band
.
006 (0.
15)
ma
x
.
Top View
.
140 (3.
55)
.
100 (2.
55)
.055 (1.40)
.004 (0.1)
max.
.
006 (0.
15)
ma
x
.
.010 (0.25)
min.
.012 (0.3)
.
076 (1.95)
.
112 (2.85)
.059 (1.5)
.004 (0.1)
max.
.
0
49 (1.
25)
ma
x
.
Cathode Band
Top View
.
1
00 (2.55)
.0
6
5
(
1
.
65)
.043 (1.1)
SOD-323 (BB731S)
0.094 (2.40)
0.055 (1.40)
0.055 (1.
40)
0.055
(1.40)
0.062
(1.60)
0.047 (1.
20)
Mounting Pad Layout SOD-123 (BB731)
Mounting Pad Layout SOD-323 (BB731S)
SOD-123 (BB731)
Dimensions in inches and (millimeters)
Mechanical Data
Case: BB731 = SOD-123 Plastic Case
BB731S = SOD-323 Plastic Case
Weight: BB731 = approx. 0.01g
BB731S = approx. 0.004g
Packaging Codes/Options:
SOD-123: D3/10K per 13" reel (8mm tape), 30K/box
D4/3K per 7" reel (8mm tape), 30K/box
SOD-323: D5/10K per 13" reel (8mm tape), 30K/box
D6/3K per 7" reel (8mm tape), 30K/box
BB731 and BB731S
Vishay Semiconductors
formerly General Semiconductor
www.vishay.com
Document Number 88157
2
15-May-02
Electrical Characteristics
(T
C
= 25C unless otherwise noted)
Parameter
Symbol
Min
Typ Max
Unit
Reverse Breakdown Voltage
V
(BR)R
32
V
at I
R
= 100
A
Leakage Current
I
R
30
nA
at V
R
= 30V
Capacitance f = 1MH
Z
at V
R
= 28V
3.15
3.55
at V
R
= 25V
C
tot
3.5
pF
at V
R
= 1V
50
Effective Capacitance Ratio f = 1MH
Z
at V
R
= 1 to 28V
C
tot
(1V)
19.5
25
C
tot
(28V)
at V
R
= 3 to 25V
C
tot
(3V)
14
C
tot
(25V)
Series Resistance
r
s
0.9
1.0
at f = 300 MH
Z,
C
tot
= 25 pF
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
VR = 0.5 to 28V is 3%
BB731 and BB731S
Vishay Semiconductors
formerly General Semiconductor
Document Number 88157
www.vishay.com
15-May-02
3
Ratings and
Characteristic Curves
(T
A
= 25C unless otherwise noted)
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