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DISCRETE SEMICONDUCTORS
DATA SH EET
lfpage
M3D049
BB147
VHF variable capacitance diode
Product specification
1996 Sep 20
Page 2
Philips Semiconductors Product specification
VHF variable capacitance diode BB147
FEATURES
• Ultra high ratio
• Excellent matching to 2% DMA
(Direct Matching Assembly)
• Very small plastic SMD package
• C28: 2.6 pF; ratio 40.
APPLICATIONS
handbook, 4 columns
ka
MAM130
• Electronic tuning in television
tuners with extended VHF range
Marking code: P7.
Cathode side indicated by a bar.
• Voltage controlled oscillators
(VCO).
DESCRIPTION
The BB147 is a variable capacitance
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
Fig.1 Simplified outline (SOD323) and symbol.
diode, fabricated in planar
technology, and encapsulated in the
SOD323 very small plastic SMD
package.
The excellent matching performance
is achieved by gliding matching and a
direct matching assembly procedure.
SYMBOL PARAMETER MIN. MAX. UNIT
V
R
I
F
T
stg
T
j
continuous reverse voltage
continuous forward current −
storage temperature
operating junction temperature
−
−55
−55
30 V
20 mA
+150 °C
+125 °C
ELECTRICAL CHARACTERISTICS
T
=25°C; unless otherwise specified.
j
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
I
R
r
s
C
d
C
d 0.5V()
--------------------- C
d28V()
reverse current VR= 30 V; see Fig.3 −
= 30 V; Tj=85°C; see Fig.3 −
V
R
20
200
diode series resistance f = 100 MHz; note 1 − 2.8 Ω
diode capacitance VR= 0.5 V; f = 1 MHz; see Figs 2 and 4
V
= 28 V; f = 1 MHz; see Figs 2 and 4 2.4 2.8 pF
R
92 112 pF
capacitance ratio f = 1 MHz 35 43
nA
nA
C
∆
---------C
d
d
capacitance matching V
= 0.5 to 28 V; in a sequence of 8 diodes
R
(gliding)
Note
1. V
is the value at which Cd= 30 pF.
R
1996 Sep 20 2
− 2%
Page 3
Philips Semiconductors Product specification
VHF variable capacitance diode BB147
GRAPHICAL DATA
100
handbook, full pagewidth
C
d
(pF)
80
60
40
20
0
−1
10
f =1 MHz; Tj=25°C.
101
VR (V)
Fig.2 Diode capacitance as a function of reverse voltage; typical values.
MBH585
2
10
Tj (°C)
MBH586
1000
3
10
handbook, halfpage
I
R
(nA)
2
10
10
50
Fig.3 Reverse current as a function of junction
temperature; maximum values.
1996 Sep 20 3
3
10
handbook, halfpage
TC
d
(K−1)
4
10
5
10
1
10
Tj= 0to 85 °C.
11010
Fig.4 Temperature coefficient of diode
capacitance as a function of reverse
voltage; typical values.
V (V)
R
MLC815
2
Page 4
Philips Semiconductors Product specification
VHF variable capacitance diode BB147
PACKAGE OUTLINE
handbook, full pagewidth
1.00
0.25
max
0.10
0.40
1.35
0.25
1.15
Dimensions in mm.
The marking bar indicates the cathode.
1.8
1.6
2.7
2.3
Fig.5 SOD323.
0.55
0.40
0.05
max
A
0.2 A
M
MBC672 - 1
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 Sep 20 4
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