Philips bb158 DATASHEETS
DISCRETE SEMICONDUCTORS
DATA SH EET
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M3D049
BB158
VHF variable capacitance diode
Product specification
Supersedes data of May 1996
1999 Jun 10
Philips Semiconductors Product specification
VHF variable capacitance diode BB158
FEATURES
• Excellent linearity
• Very small plastic SMD package
• C28: 2.6 pF; ratio: 15
• Low series resistance.
handbook, 4 columns
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MAM130
APPLICATIONS
• Electronic tuning in VHF television
tuners, band B up to 460 MHz
Marking code: PH.
Cathode side indicated by a bar.
Fig.1 Simplified outline (SOD323) and symbol.
• VCO.
DESCRIPTION
The BB158 is variable capacitance
diode, fabricated in planar
technology, and encapsulated in the
SOD323 very small plastic SMD
package.
The matched type, BB148 has the
same specification.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
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. TYP. MAX. UNIT
I
R
r
s
C
d
C
d1V()
-------------------C
d28V()
reverse current VR= 30 V; see Fig.3 −−
= 30 V; Tj=85°C; see Fig.3 −−
V
R
10
200
diode series resistance f = 100 MHz; note 1 −−0.9 Ω
diode capacitance VR= 1 V; f = 1 MHz; see Figs 2 and 4
= 28 V; f = 1 MHz; see Figs 2 and 4 2.4 − 2.75 pF
V
R
36.8
−
41.8 pF
capacitance ratio f = 1 MHz 14.5 −−
nA
nA
Note
1. V
is the value at which Cd= 12 pF.
R
1999 Jun 10 2
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