DISCRETE SEMICONDUCTORS
DATA SHEET
M3D319
BB182B
VHF variable capacitance diode
Product specification
Supersedes data of 1999 Sep 15
1999 Nov 26
Philips Semiconductors
Product specification
VHF variable capacitance diode
FEATURES
•
High linearity
•
Excellent matching to 2% DMA
•
Ultra small plastic SMD package
•
C25: 2.8 pF; ratio: 17
•
Low series resistance.
APPLICATIONS
•
Electronic tuning in VHF television
tuners, band A up to 160 MHz
•
Voltage controlled oscillators
(VCO).
DESCRIPTION
The BB182B is a planar technology
variable capacitance diode in a
SOD523 (SC-79) package. The
excellent matching performance is
achieved by gliding matching and a
direct matching assembly procedure.
PINNING
PIN
1
2
DESCRIPTION
cathode
anode
MIN.
−
−
−
−55
−55
MIN.
−
−
−
47
17
−
BB182B
handbook, 2 columns
1
2
Y
MBK441
Marking code:
Y.
Orientation of marking code as shown.
Cathode side indicated by a bar.
Fig.1 Simplified outline
(SOD523; SC-79) and symbol.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
V
R
V
RM
I
F
T
stg
T
j
PARAMETER
continuous reverse voltage
peak reverse voltage
continuous forward current
storage temperature
operating junction temperature
in series with a 10 kΩ resistor
CONDITIONS
MAX.
34
35
20
+150
+150
V
V
mA
°C
°C
UNIT
ELECTRICAL CHARACTERISTICS
T
j
= 25
°C
unless otherwise specified.
SYMBOL
I
R
r
s
C
d
C
d
(
2V
)
------------------
-
C
d
(
25V
)
∆
C
d
---------
-
C
d
PARAMETER
reverse current
diode series resistance
diode capacitance
capacitance ratio
CONDITIONS
V
R
= 32 V; see Fig.3
V
R
= 32 V; T
j
= 85
°C;
see Fig.3
f = 470 MHz; V
R
= 5 V
V
R
= 2 V; f = 1 MHz; see Figs 2 and 4
f = 1 MHz
TYP.
−
−
−
−
−
−
−
MAX.
10
200
1.1
53
3
−
2
%
UNIT
nA
nA
Ω
pF
pF
V
R
= 25 V; f = 1 MHz; see Figs 2 and 4 2.65
capacitance matching
V
R
= 2 to 25 V; in a sequence of 15
diodes (gliding)
1999 Nov 26
2
Philips Semiconductors
Product specification
VHF variable capacitance diode
GRAPHICAL DATA
BB182B
handbook, full pagewidth
80
MCD783
Cd
(pF)
60
40
20
0
10
−1
f = 1 MHz; T
j
= 25
°C
.
1
10
VR (V)
10
2
Fig.2 Diode capacitance as a function of reverse voltage; typical values.
10
3
handbook, halfpage
MLC816
10
3
handbook, halfpage
MLC815
IR
(nA)
(K
−1
)
TC d
10
2
10
4
10
0
50
T j (
o
C)
100
10
5
10
1
1
10
VR (V)
10
2
Fig.4
Fig.3
Reverse current as a function of junction
temperature; maximum values.
Temperature coefficient of diode
capacitance as a function of reverse
voltage; typical values.
1999 Nov 26
3
Philips Semiconductors
Product specification
VHF variable capacitance diode
PACKAGE OUTLINE
Plastic surface mounted package; 2 leads
BB182B
SOD523
A
c
HE
v
M
A
D
A
0
0.5
scale
1 mm
1
E
bp
2
DIMENSIONS (mm are the original dimensions)
UNIT
mm
A
0.7
0.5
bp
0.35
0.25
c
0.2
0.1
D
1.3
1.1
E
0.9
0.7
HE
1.7
1.5
v
0.15
(1)
Note
1. The marking bar indicates the cathode.
OUTLINE
VERSION
SOD523
REFERENCES
IEC
JEDEC
EIAJ
SC-79
EUROPEAN
PROJECTION
ISSUE DATE
98-11-25
1999 Nov 26
4
Philips Semiconductors
Product specification
VHF variable capacitance diode
DEFINITIONS
Data sheet status
Objective specification
Preliminary specification
Product specification
Limiting values
BB182B
This data sheet contains target or goal specifications for product development.
This data sheet contains preliminary data; supplementary data may be published later.
This data sheet contains final product specifications.
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
1999 Nov 26
5
