BB145B [NXP]
Low-voltage variable capacitance diode; 低电压可变电容二极管型号: | BB145B |
厂家: | NXP |
描述: | Low-voltage variable capacitance diode |
文件: | 总8页 (文件大小:54K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
DISCRETE SEMICONDUCTORS
DATA SHEET
BB145
Low-voltage variable capacitance
diode
Product specification
1999 Dec 15
Supersedes data of 1999 Sep 15
Philips Semiconductors
Product specification
Low-voltage variable capacitance diode
BB145
FEATURES
DESCRIPTION
• Ultra small plastic SMD package
• C4: 3 pF; ratio: 2.1
The BB145 is a planar technology
variable capacitance diode in a
SOD523 (SC-79) package.
1
2
• Low series resistance.
MBK441
PINNING
APPLICATIONS
PIN
DESCRIPTION
cathode
anode
• Voltage controlled oscillators
(VCO).
Marking code: U.
Orientation of marking code as shown.
Cathode side indicated by a bar.
1
2
Fig.1 Simplified outline
(SOD523; SC-79) and symbol.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
continuous reverse voltage
peak reverse voltage
CONDITIONS
MIN.
MAX.
UNIT
VR
VRM
IF
−
−
−
6
8
V
V
in series with a 10 kΩ resistor
continuous forward current
storage temperature
20
mA
°C
Tstg
Tj
−55
−55
+150
+150
operating junction temperature
°C
ELECTRICAL CHARACTERISTICS
Tj = 25 °C unless otherwise specified.
SYMBOL
PARAMETER
reverse current
CONDITIONS
MIN.
TYP. MAX. UNIT
IR
VR = 6 V; see Fig.3
−
−
−
−
−
−
−
−
−
10
nA
nA
Ω
VR = 6 V; Tj = 85 °C; see Fig.3
f = 470 MHz; VR = 1 V
200
0.6
7.4
3.25
−
rs
diode series resistance
diode capacitance
Cd
VR = 1 V; f = 1 MHz; see Figs 2 and 4 6.4
VR = 4 V; f = 1 MHz; see Figs 2 and 4 2.75
pF
pF
Cd(1V)
capacitance ratio
f = 1 MHz
2
----------------
Cd(4V)
1999 Dec 15
2
Philips Semiconductors
Product specification
Low-voltage variable capacitance diode
BB145
GRAPHICAL DATA
MCD782
10
C
d
(pF)
8
6
4
2
0
10
−1
1
10
V
(V)
R
f = 1 MHz; Tj = 25 °C.
Fig.2 Diode capacitance as a function of reverse voltage; typical values.
MLC816
MGS352
−3
3
10
10
handbook, halfpage
handbook, halfpage
TC
d
I
R
−1
(K
)
(nA)
2
10
−4
10
10
0
−1
10
1
10
50
100
V
(V)
o
R
T
( C)
j
Fig.4 Temperature coefficient of diode
capacitance as a function of
Fig.3 Reverse current as a function of junction
temperature; maximum values.
reverse voltage; typical values.
1999 Dec 15
3
Philips Semiconductors
Product specification
Low-voltage variable capacitance diode
BB145
PACKAGE OUTLINE
Plastic surface mounted package; 2 leads
SOD523
A
c
v
M
A
H
E
A
D
0
0.5
1 mm
scale
1
2
DIMENSIONS (mm are the original dimensions)
b
E
p
UNIT
A
b
c
D
E
H
v
p
E
0.35
0.25
0.2
0.1
0.7
0.5
1.3
1.1
0.9
0.7
1.7
1.5
mm
0.15
(1)
Note
1. The marking bar indicates the cathode.
REFERENCES
JEDEC
EUROPEAN
PROJECTION
OUTLINE
VERSION
ISSUE DATE
IEC
EIAJ
SC-79
98-11-25
SOD523
DEFINITIONS
Data sheet status
Objective specification
Preliminary specification
Product specification
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
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 Dec 15
4
Philips Semiconductors
Product specification
Low-voltage variable capacitance diode
BB145
NOTES
1999 Dec 15
5
Philips Semiconductors
Product specification
Low-voltage variable capacitance diode
BB145
NOTES
1999 Dec 15
6
Philips Semiconductors
Product specification
Low-voltage variable capacitance diode
BB145
NOTES
1999 Dec 15
7
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SCA
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Printed in The Netherlands
125004/02/pp8
Date of release: 1999 Dec 15
Document order number: 9397 750 06461
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