Philips BB146 Datasheet
DISCRETE SEMICONDUCTORS
DATA SH EET
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M3D049
BB146
UHF variable capacitance diode
Product specification
1996 Sep 20
Philips Semiconductors Product specification
UHF variable capacitance diode BB146
FEATURES
• Ultra high ratio
• Excellent matching to 1.6% DMA
(Direct Matching Assembly)
• Very small plastic SMD package
• C28: 1.9 pF; ratio 20.
APPLICATIONS
handbook, 4 columns
ka
MAM130
• Electronic tuning in television
tuners with extended UHF range
Marking code: P6.
Cathode side indicated by a bar.
• Voltage controlled oscillators
(VCO).
DESCRIPTION
The BB146 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 −
V
= 30 V; Tj=85°C; see Fig.3 −
R
10
200
diode series resistance f = 470 MHz; note 1 − 1.4 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 1.7 2.1 pF
R
35 43 pF
capacitance ratio f = 1 MHz 17.5 23
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= 9 pF.
R
1996 Sep 20 2
− 1.6 %
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