Page 1
DISCRETE SEMICONDUCTORS
DATA SH EET
fpage
M3D152
BB204B; BB204G
VHF variable capacitance double
diodes
Product specification
Supersedes data of April 1992
File under Discrete Semiconductors, SC01
1996 May 03
Page 2
Philips Semiconductors Product specification
VHF variable capacitance double diodes BB204B; BB204G
FEA TURES
• Selected capacitance ranges
• Leaded plastic package
• C30: 14 pF; ratio: 2.6.
PINNING
PIN DESCRIPTION
1 anode (a1)
2 common cathode
3 anode (a2)
APPLICATIONS
• Electronic tuning in FM radio
applications
• VCO.
handbook, halfpage
1
2
3
DESCRIPTION
The BB204B, BB204G are variable
capacitance double diodes with
common cathodes, fabricated in
planar technology, and encapsulated
in TO-92 variant leaded plastic
Fig.1 Simplified outline (TO-92 variant) and symbol.
packages.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
13
MAM223
2
SYMBOL PARAMETER MIN. MAX. UNIT
Per diode
V
R
I
F
T
stg
T
j
continuous reverse voltage
continuous forward current −
storage temperature
operating junction temperature
−
−55
−55
30 V
100 mA
+100 °C
+100 °C
1996 May 03 2
Page 3
Philips Semiconductors Product specification
VHF variable capacitance double diodes BB204B; BB204G
ELECTRICAL CHARACTERISTICS
T
=25°C; unless otherwise specified.
j
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Per diode
I
R
r
s
C
d
C
d3V()
-------------------C
d30V()
reverse current VR= 30 V; see Fig.3 −−
= 30 V; Tj=85°C; see Fig.3 −−
V
R
50
300
diode series resistance f = 100 MHz; note 1 − 0.2 0.4 Ω
diode capacitance see Figs 2 and 4
BB204B V
BB204G V
= 3 V; f = 1 MHz
R
V
= 8 V; f = 1 MHz 24 − 29
R
V
= 30 V; f = 1 MHz − 14 − pF
R
= 3 V; f = 1 MHz
R
V
= 8 V; f = 1 MHz 22 − 27
R
V
= 30 V; f = 1 MHz − 14 − pF
R
37
34
− 42
− 39
capacitance ratio f = 1 MHz 2.5 − 2.8
nA
nA
pF
pF
pF
pF
Note
is the value at which Cd=38pF.
1. V
R
1996 May 03 3
Page 4
Philips Semiconductors Product specification
VHF variable capacitance double diodes BB204B; BB204G
GRAPHICAL DATA
75
handbook, full pagewidth
C
d
(pF)
50
25
0
−1
10
f =1 MHz.
110
Fig.2 Diode capacitance as a function of reverse voltage; typical values.
MGC813
2
V
(V)
R
10
Tj (
MGC809
o
C)
1000
3
10
handbook, halfpage
I
R
(nA)
2
10
10
20 40 60 80
Fig.3 Reverse current as a function of junction
temperature; maximum values.
1996 May 03 4
3
10
handbook, halfpage
TC
d
(K−1)
4
10
5
10
1
10
11010
Fig.4 Temperature coefficient of diode
capacitance as a function of reverse
voltage; typical values.
V (V)
R
MLC815
2
Page 5
Philips Semiconductors Product specification
VHF variable capacitance double diodes BB204B; BB204G
PACKAGE OUTLINE
dbook, full pagewidth
0.40
min
4.2 max
1.7
1.4
5.2 max 12.7 min
1
4.8
2.54
max
Dimensions in mm.
(1) Terminal dimensions within this zone are uncontrolled to allow for flow of plastic and terminal irregularities.
2
3
0.66
0.56
2.0 max
(1)
MBC014 - 1
0.48
0.40
Fig.5 TO-92 variant.
DEFINITIONS
Data sheet status
Objective specification This data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specification This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
1996 May 03 5
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