DATA SH EET
Product specification
Supersedes data of 1999 Dec 15 2002 Nov 18
DISCRETE SEMICONDUCTORS
BB145B; BB145B-01
Low-voltage variable capacitance
diodes
M3D749
M3D319
2002 Nov 18 2
Philips Semiconductors Product specification
Low-voltage variable capacitance diodes BB145B; BB145B-01
FEATURES
•Ultra small plastic SMD package
•C4: 2.75 pF; ratio: 2.4
•Low series resistance.
APPLICATIONS
•Voltage controlled oscillators
(VCO).
DESCRIPTION
The BB145B is a planar technology
variable capacitance diode in a
SOD523 (SC-79) package.
The BB145B-01 is a planar
technology variable capacitance
diode in a SOD723 package.
PINNING
PIN DESCRIPTION
1 cathode
2 anode
Fig.1 Simplified outline
(SOD523; SC-79) and symbol.
handbook, 2 columns
12
MBK441
Marking code: Z.
Orientation of marking code as shown.
Cathode side indicated by a bar.
Z
f
page
12
Top view
Z1
MCE159
Fig.2 Simplified outline
(SOD723) and symbol.
Marking code: Z1.
Orientation of marking code as shown.
Cathode side indicated by a bar.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 60134).
ELECTRICAL CHARACTERISTICS
Tj=25°C unless otherwise specified.
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
VRcontinuous reverse voltage −6V
V
RM peak reverse voltage in series with a 10 kΩ resistor −8V
I
Fcontinuous forward current −20 mA
Tstg storage temperature −55 +150 °C
Tjoperating junction temperature −55 +150 °C
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
IRreverse current VR= 6 V; see Fig.4 −10 nA
VR=6V; T
j=85°C; see Fig.4 −200 nA
rsdiode series resistance f = 470 MHz; VR=1V −0.6 Ω
Cddiode capacitance VR= 1 V; f = 1 MHz; see Figs 3 and 5 6.4 7.2 pF
VR= 4 V; f = 1 MHz; see Figs 3 and 5 2.55 2.95 pF
capacitance ratio f = 1 MHz 2.2 −
CAUTION
This product is supplied in anti-static packing to prevent damage caused by electrostatic discharge during transport
and handling. For further information, refer to Philips specs.: SNW-EQ-608, SNW-FQ-302A and SNW-FQ-302B.
Cd1V()
C
d4V()
----------------
2002 Nov 18 3
Philips Semiconductors Product specification
Low-voltage variable capacitance diodes BB145B; BB145B-01
GRAPHICAL DATA
handbook, full pagewidth
0
10
2
4
6
8
MCD782
10−11VR (V)
Cd
(pF)
10
Fig.3 Diode capacitance as a function of reverse voltage; typical values.
f = 1 MHz; Tj=25°C.
handbook, halfpage
1000
10
MLC816
102
103
50
IR
(nA)
T ( C)
jo
Fig.4 Reversecurrentasafunction ofjunction
temperature; maximum values.
handbook, halfpage
10−3
10−4
MGS352
10−1110
TCd
(K−1)
VR (V)
Fig.5 Temperature coefficient of diode
capacitance as a function of
reverse voltage; typical values.
2002 Nov 18 4
Philips Semiconductors Product specification
Low-voltage variable capacitance diodes BB145B; BB145B-01
PACKAGE OUTLINE
REFERENCES
OUTLINE
VERSION EUROPEAN
PROJECTION ISSUE DATE
IEC JEDEC EIAJ
SOD523 SC-79 98-11-25
Plastic surface mounted package; 2 leads SOD523
0 0.5 1 mm
scale
D
12
H
E
E
b
p
A
c
vM
A
A
UNIT bpcDEv
mm 0.35
0.25 0.2
0.1 0.15
0.9
0.7
1.3
1.1
A
0.7
0.5
HE
1.7
1.5
DIMENSIONS (mm are the original dimensions)
Note
1. The marking bar indicates the cathode.
(1)
REFERENCES
OUTLINE
VERSION EUROPEAN
PROJECTION ISSUE DATE
IEC JEDEC JEITA
SOD723 02-07-05
Plastic surface mounted package; 2 leads SOD723
0 0.5 1 mm
scale
D
12
H
E
L
p
L
p
E
b
p
A
c
UNIT bpcDE
mm 0.32
0.25 0.15
0.08 0.65
0.55
1.05
0.95
A
0.55
0.49
HE
1.45
1.35
Lp
0.27
0.13
DIMENSIONS (mm are the original dimensions)
Note
1. The marking bar indicates the cathode.
(1)
2002 Nov 18 5
Philips Semiconductors Product specification
Low-voltage variable capacitance diodes BB145B; BB145B-01
DATA SHEET STATUS
Notes
1. Please consult the most recently issued data sheet before initiating or completing a design.
2. The product status of the device(s) described in this data sheet may have changed since this data sheet was
published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com.
3. For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
LEVEL DATA SHEET
STATUS(1) PRODUCT
STATUS(2)(3) DEFINITION
I Objective data Development This data sheet contains data from the objective specification for product
development. Philips Semiconductors reserves the right to change the
specification in any manner without notice.
II Preliminary data Qualification This data sheet contains data from the preliminary specification.
Supplementary data will be published at a later date. Philips
Semiconductors reserves the right to change the specification without
notice, in order to improve the design and supply the best possible
product.
III Product data Production This data sheet contains data from the product specification. Philips
Semiconductors reserves the right to make changes at any time in order
to improve the design, manufacturing and supply. Relevant changes will
be communicated via a Customer Product/Process Change Notification
(CPCN).
DEFINITIONS
Short-form specification The data in a short-form
specification is extracted from a full data sheet with the
same type number and title. For detailed information see
the relevant data sheet or data handbook.
Limiting values definition Limiting values given are in
accordance with the Absolute Maximum Rating System
(IEC 60134). 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
attheseor atanyotherconditions abovethosegiven in the
Characteristics sections of the specification is not implied.
Exposure to limiting values for extended periods may
affect device reliability.
Application information Applications that are
described herein for any of these products are for
illustrative purposes only. Philips Semiconductors make
norepresentationorwarranty thatsuch applicationswillbe
suitable for the specified use without further testing or
modification.
DISCLAIMERS
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
Semiconductorscustomersusingorsellingtheseproducts
for use in such applications do so at their own risk and
agree to fully indemnify Philips Semiconductors for any
damages resulting from such application.
Right to make changes Philips Semiconductors
reserves the right to make changes in the products -
including circuits, standard cells, and/or software -
described or contained herein in order to improve design
and/or performance. When the product is in full production
(status ‘Production’), relevant changes will be
communicated via a Customer Product/Process Change
Notification (CPCN). Philips Semiconductors assumes no
responsibility or liability for the use of any of these
products, conveys no licence or title under any patent,
copyright, or mask work right to these products, and
makes no representations or warranties that these
products are free from patent, copyright, or mask work
right infringement, unless otherwise specified.
2002 Nov 18 6
Philips Semiconductors Product specification
Low-voltage variable capacitance diodes BB145B; BB145B-01
NOTES
2002 Nov 18 7
Philips Semiconductors Product specification
Low-voltage variable capacitance diodes BB145B; BB145B-01
NOTES
© Koninklijke Philips Electronics N.V. 2002 SCA74
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
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under patent- or other industrial or intellectual property rights.
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Contact information
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Printed in The Netherlands 613512/02/pp8 Date of release: 2002 Nov 18 Document order number: 9397 750 10597
