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BB914...
Silicon Variable Capacitance Diode
• For FM radio tuner with extended
frequency band
• High tuning ratio at low supply voltage (car radio)
• Monolitic chip (common cathode)
for perfect dual diode tracking
• Good linearity for C- V curve
• High figure of merit
• Pb-free (RoHS compliant) package
BB914
!
,
,
Type Package Configuration LS(nH) Marking
BB914 SOT23 common cathode 1.8 SM
Maximum Ratings at TA = 25°C, unless otherwise specified
Parameter Symbol Value Unit
Diode reverse voltage VR18 V
Peak reverse voltage
( R ≥ 5kΩ )
VRM 20
Forward current IF50 mA
Operating temperature range Top -55 ... 125 °C
Storage temperature Tst
g
-55 ... 150
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Electrical Characteristics at TA = 25°C, unless otherwise specified
Parameter Symbol Values Unit
min. typ. max.
DC Characteristics
Reverse current
VR = 16 V
VR = 16 V, TA = 85 °C
IR
-
-
-
-
20
200
nA
AC Characteristics
Diode capacitance
VR = 2 V, f = 1 MHz
VR = 8 V, f = 1 MHz
CT
42.5
17.6
43.75
18.7
45
19.75
pF
Capacitance ratio
VR = 2 V, VR = 8 V, f = 1 MHz
CT2/CT8 2.28 2.34 2.42
Capacitance matching1)
VR = 2 V, VR = 8 V, f = 1 MHz
∆CT/CT- - 1.5 %
Series resistance
VR = 2 V, f = 100 MHz
rS- 0.28 - Ω
1For details please refer to Application Note 047.
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Diode capacitance CT = ƒ (VR)
f = 1MHz
012345678V10
VR
0
10
20
30
40
50
60
70
80
pF
100
CT
Capacitance ratio CTref/CT = ƒ (VR)
f = 1MHz
012345678V10
VR
0
0.5
1
1.5
2
2.5
3
3.5
4
-
5
CTref / CT
1V
2V
3V
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Package SOT23
Package Outline
Foot Print
Marking Layout (Example)
Standard Packing
Reel ø180 mm = 3.000 Pieces/Reel
Reel ø330 mm = 10.000 Pieces/Reel
EH
s
BCW66
Type code
Pin 1
0.8
0.9 0.91.3
0.8 1.2
0.25
M
BC
1.9
-0.05
+0.1
0.4
±0.1
2.9
0.95
C
B
0...8˚
0.2 A
0.1 MAX.
10˚ MAX.
0.08...0.15
1.3
±0.1
10˚ MAX.
M
2.4
±0.15
±0.1
1
A
0.15 MIN.
1)
1) Lead width can be 0.6 max. in dambar area
12
3
3.15
4
2.65
2.13
0.9
8
0.2
1.15
Pin 1
Manufacturer
2005, June
Date code (YM)
2011-06-15
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BB914...
Edition 2009-11-16
Published by
Infineon Technologies AG
81726 Munich, Germany
2009 Infineon Technologies AG
All Rights Reserved.
Legal Disclaimer
The information given in this document shall in no event be regarded as a guarantee
of conditions or characteristics. With respect to any examples or hints given herein,
any typical values stated herein and/or any information regarding the application of
the device, Infineon Technologies hereby disclaims any and all warranties and
liabilities of any kind, including without limitation, warranties of non-infringement of
intellectual property rights of any third party.
Information
For further information on technology, delivery terms and conditions and prices,
please contact the nearest Infineon Technologies Office (<www.infineon.com>).
Warnings
Due to technical requirements, components may contain dangerous substances.
For information on the types in question, please contact the nearest Infineon
Technologies Office.
Infineon Technologies components may be used in life-support devices or systems
only with the express written approval of Infineon Technologies, if a failure of such
components can reasonably be expected to cause the failure of that life-support
device or system or to affect the safety or effectiveness of that device or system.
Life support devices or systems are intended to be implanted in the human body or
to support and/or maintain and sustain and/or protect human life. If they fail, it is
reasonable to assume that the health of the user or other persons may be
endangered.
