1.
Product profile
1.1 General description
The BB184 is a variable capacitance diode, fabricated in planar technology, and
encapsulated in the SOD523 (SC-79) ultra small SMD plastic package.
1.2 Features
s
Very steep CV curve
s
C
d(1V)
: 14 pF; C
d(10V)
: 2 pF
s
C
d(1V)
to C
d(10V)
ratio: typical 7
s
Ultra small SMD plastic package.
1.3 Applications
s
Voltage Controlled Oscillators (VCO)
s
Tuning in low voltage television.
2.
Pinning information
3.
Ordering information
BB184
UHF low voltage variable capacitance diode
Rev. 02 -- 22 April 2004
Product data sheet
Table 1:
Discrete pinning
Pin
Description
Simplified outline
Symbol
1
cathode
2
anode
1
2
Top view
sym008
Table 2:
Ordering information
Type number
Package
Name
Description
Version
BB184
-
plastic surface mounted package; 2 leads
SOD523
9397 750 13004
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 02 -- 22 April 2004
2 of 7
Philips Semiconductors
BB184
UHF low voltage variable capacitance diode
4.
Marking
5.
Limiting values
6.
Characteristics
Table 3:
Marking
Type number
Marking code
BB184
A2
Table 4:
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
Conditions
Min
Max
Unit
V
R
continuous reverse voltage
-
13
V
I
F
continuous forward current
-
10
mA
T
stg
storage temperature
-
55
+150
C
T
j
operating junction temperature
-
55
+125
C
Table 5:
Electrical characteristics
T
j
= 25
C unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
I
R
reverse current
V
R
= 10 V; see
Figure 2
-
-
10
nA
V
R
= 10 V; T
j
= 85
C; see
Figure 2
-
-
200
nA
r
s
diode series resistance f = 470 MHz; C
d
= 9 pF
-
0.65
-
C
d
diode capacitance
f = 1 MHz; see
Figure 1
and
3
V
R
= 1 V
12.7
14
15.3
pF
V
R
= 4 V
-
5.5
-
pF
V
R
= 10 V
1.87
2
2.13
pF
capacitance ratio
f = 1 MHz
6
7
-
capacitance matching
V
R
= 1 to 10 V; in a sequence of 5 diodes
(gliding)
-
-
2
%
C
d 1V
(
)
C
d 10V
(
)
-------------------
C
d
C
d
----------
9397 750 13004
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 02 -- 22 April 2004
3 of 7
Philips Semiconductors
BB184
UHF low voltage variable capacitance diode
f = 1 MHz; T
j
= 25
C.
Fig 1.
Diode capacitance as a function of reverse voltage; typical values.
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.
001aaa643
10
15
5
20
25
C
d
(pF)
0
V
R
(V)
10
-
1
10
2
10
1
001aaa657
10
2
10
10
3
I
R
(nA)
1
T
j
(
C)
0
100
80
40
60
20
V
R
(V)
10
-
1
10
2
10
1
001aaa658
10
-
3
10
-
4
10
-
2
TC
d
(K
-1
)
10
-
5
9397 750 13004
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 02 -- 22 April 2004
4 of 7
Philips Semiconductors
BB184
UHF low voltage variable capacitance diode
7.
Package outline
Fig 4.
Package outline.
REFERENCES
OUTLINE
VERSION
EUROPEAN
PROJECTION
ISSUE DATE
IEC
JEDEC
JEITA
SOD523
SC-79
98-11-25
02-12-13
Plastic surface mounted package; 2 leads
SOD523
0
0.5
1 mm
scale
D
1
2
HE
E
bp
A
c
v
M
A
A
UNIT
bp
c
D
E
v
mm
A
HE
DIMENSIONS (mm are the original dimensions)
Note
1. The marking bar indicates the cathode.
(1)
0.34
0.26
0.17
0.11
0.1
0.85
0.75
1.25
1.15
0.65
0.58
1.65
1.55
9397 750 13004
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 02 -- 22 April 2004
5 of 7
Philips Semiconductors
BB184
UHF low voltage variable capacitance diode
8.
Revision history
Table 6:
Revision history
Document ID
Release date
Data sheet status
Change notice
Order number
Supersedes
BB184_2
20040422
Product data
-
9397 750 13004
BB184_N_1
Modifications:
The format of this data sheet has been redesigned to comply with the new presentation and
information standard of Philips Semiconductors
BB184_N_1
20040114
Preliminary data
-
9397 750 12694
-
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