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BB181,135

P1-P3P4-P6
1. Product profile
1.1 General description
The BB181 is a variable capacitance diode, fabricated in planar technology and
encapsulated in the SOD523 (SC-79) ultra small plastic SMD package.
1.2 Features
n Excellent linearity
n Ultra small plastic SMD package
n C
d(28V)
: 1 pF; C
d(0V5)
to C
d(28V)
ratio : 14
1.3 Applications
n Electronic tuning in satellite tuners
n Tunable coupling
n Voltage Controlled Oscillators (VCO)
2. Pinning information
[1] The marking bar indicates the cathode.
3. Ordering information
BB181
VHF variable capacitance diode
Rev. 03 — 16 February 2009 Product data sheet
Table 1. Pinning
Pin Description Simplified outline Graphic symbol
1 cathode
[1]
2 anode
21
sym008
Table 2. Ordering information
Type number Package
Name Description Version
BB181 SC-79 plastic surface mounted package; 2 leads SOD523
BB181_3 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 03 — 16 February 2009 2 of 6
NXP Semiconductors
BB181
VHF variable capacitance diode
4. Marking
5. Limiting values
6. Characteristics
Table 3. Marking codes
Type number Marking code
BB181 N
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
V
R
reverse voltage - 30 V
I
F
forward current - 20 mA
T
stg
storage temperature −55 +150 °C
T
j
junction temperature −55 +150 °C
Table 5. Characteristics
T
j
= 25
°
C unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
I
R
reverse current see Figure 2
V
R
=30V - - 10 nA
V
R
=30V; T
j
=85°C - - 200 nA
r
s
diode series resistance f = 470 MHz at C
d
=9pF - - 3 Ω
C
d
diode capacitance f = 1 MHz; see Figure 1 and
Figure 3
V
R
= 0.5 V 8 - 17 pF
V
R
= 28 V 0.7 - 1.055 pF
C
d(0V5)
/C
d(28V)
diode capacitance ratio (0.5 V to 28 V) f = 1 MHz 12 - 16
BB181_3 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 03 — 16 February 2009 3 of 6
NXP Semiconductors
BB181
VHF variable capacitance diode
f = 1 MHz; T
j
= 25 °C.
Fig 1. Diode capacitance as a function of reverse voltage; typical values
mbe872
10
5
15
C
d
(pF)
0
V
R
(V)
10
−1
10
2
101
T
j
= 0 °C to 85 °C.
Fig 2. Reverse current as a function of junction
temperature; maximum values
Fig 3. Temperature coefficient of diode capacitance
as a function of reverse voltage; typical values
mlc816
10
2
10
10
3
I
R
(nA)
1
T
j
(°C)
0 1008040 6020
mlc815
110
10
−3
10
−4
10
−5
10
−1
10
2
V
R
(V)
TC
d
(K
−1
)
P1-P3P4-P6

BB181,135

Mfr. #:
Buy BB181,135
Manufacturer:
NXP Semiconductors
Description:
Varactor Diodes VHF 30V 17pF Variable Cap
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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