Philips BB405B Datasheet
DISCRETE SEMICONDUCTORS
DATA SH EET
fpage
M3D050
BB405B
UHF variable capacitance diode
Product specification
Supersedes data of April 1992
File under Discrete Semiconductors, SC01
1996 May 03
Philips Semiconductors Product specification
UHF variable capacitance diode BB405B
FEATURES
• Excellent linearity
• Matched to 3%
• Hermetically sealed leaded glass
SOD68 (DO-34) package
• C28: 2 pF; ratio: 8.3
• Low series resistance.
handbook, halfpage
Cathode side indicated by a white band on a black body.
k
a
MAM159
APPLICATIONS
Fig.1 Simplified outline (SOD68; DO34) and symbol.
• Electronic tuning in UHF television
tuners
• VCO.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
DESCRIPTION
The BB405B is a variable
capacitance diode, fabricated in
planar technology, and encapsulated
in the hermetically sealed leaded
glass SOD68 (DO-34) package.
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
+100 °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= 28 V; see Fig.3 −−
= 28 V; Tj=85°C; see Fig.3 −−200 nA
V
R
10
diode series resistance f = 470 MHz; note 1 −−0.75 Ω
diode capacitance VR= 1 V; f = 1 MHz; see Figs 2 and 4 −−18
V
= 3 V; f = 1 MHz; see Figs 2 and 4 − 11 − pF
R
V
= 28 V; f = 1 MHz; see Figs 2 and 4 1.8 − 2.2 pF
R
capacitance ratio f = 1 MHz 7.6 −−
nA
pF
C
∆
---------C
d
d
capacitance matching VR= 0.5 to 28 V −−3%
Note
1. V
is the value at which Cd= 9 pF.
R
1996 May 03 2
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