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BB187LX
VHF variable capacitance diode
Rev. 01 -- 19 February 2009
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Product data sheet
1. Product profile
1.1 General description
The BB187LX is a planar technology variable capacitance diode in a SOD882T ultra small leadless plastic SMD package. The excellent matching performance is achieved by gliding matching and a Direct Matching Assembly (DMA) procedure.
1.2 Features
I I I I I High linearity Excellent matching to 2 % DMA Ultra small leadless SMD package Cd(25V) : 2.75 pF; Cd(2V) to Cd(25V) ratio: 11 Low series resistance
1.3 Applications
I Voltage Controlled Oscillators (VCO) I Electronic tuning in VHF television tuners
2. Pinning information
Table 1. Pin 1 2 Pinning Description cathode anode
[1]
Simplified outline
Graphic symbol
1
2
sym008
Transparent top view
[1]
The marking bar indicates the cathode.
3. Ordering information
Table 2. Ordering information Package Name BB187LX Description leadless ultra small plastic package; 2 terminals; body 1 x 0.6 x 0.4 mm Version SOD882T Type number
NXP Semiconductors
BB187LX
VHF variable capacitance diode
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4. Marking
Table 3. BB187LX Marking codes Marking code L8 Type number
5. Limiting values
Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol VR IF Tstg Tj Parameter reverse voltage forward current storage temperature junction temperature Conditions Min -55 -55 Max 32 20 +150 +125 Unit V mA C C
6. Characteristics
Table 5. Symbol IR Characteristics Parameter reverse current Conditions see Figure 3 VR = 30 V VR = 30 V; Tj = 85 C rs Cd diode series resistance diode capacitance f = 470 MHz at VR = 5 V; see Figure 2 f = 1 MHz; see Figure 1 and Figure 4 VR = 2 V VR = 25 V Cd(2V)/Cd(25V) Cd/Cd diode capacitance ratio (2 V to 25 V) diode capacitance matching f = 1 MHz VR = 1 V to 25 V; in sequence of 5 diodes (gliding) 29.3 2.57 11 2.75 34.2 2.92 2 % pF pF 0.7 10 200 nA nA Min Typ Max Unit
BB187LX_1
(c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 01 -- 19 February 2009
2 of 7
NXP Semiconductors
BB187LX
VHF variable capacitance diode
www..com
60 Cd (pF) 40
001aaj736
0.8 rs () 0.6
001aaj737
0.4
20 0.2
0 10-1
1
10 VR (V)
102
0 10-1
1
10 VR (V)
102
f = 1 MHz; Tj = 25 C.
f = 470 MHz; Tj = 25 C.
Fig 1.
Diode capacitance as a function of reverse voltage; typical values
001aaj738
Fig 2.
Diode serial resistance as a function of reverse voltage; typical values
001aaj739
103 IR (nA) 102
10-2 TCCd (K-1) 10-3
10
10-4
1 0 20 40 60 80 100 Tj (C)
10-5 10-1
1
10 VR (V)
102
Tj = 0 C to 85 C.
Fig 3.
Reverse current as a function of junction temperature; maximum values
Fig 4.
Temperature coefficient of diode capacitance as a function of reverse voltage; typical values
BB187LX_1
(c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 01 -- 19 February 2009
3 of 7
NXP Semiconductors
BB187LX
VHF variable capacitance diode
www..com
7. Package outline
Leadless ultra small plastic package; 2 terminals; body 1 x 0.6 x 0.4 mm
(2x) w
M
SOD882T
L1 (2x)
A
1
2
b (2x)
(2x) w e1
M
B
A A1
y
E
A
D
(1)
B 0 DIMENSIONS (mm are the original dimensions) UNIT mm A 0.40 0.36 A1 max 0.04 b 0.55 0.45 D 0.65 0.55 E 1.05 0.95 e1 0.65 L1 0.30 0.22 w 0.1 y 0.03 0.5 scale 1 mm
Note 1. The marking bar indicates the cathode OUTLINE VERSION SOD882T REFERENCES IEC JEDEC JEITA EUROPEAN PROJECTION ISSUE DATE 04-12-14 06-04-12
Fig 5.
BB187LX_1
Package outline SOD882T
(c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 01 -- 19 February 2009
4 of 7
NXP Semiconductors
BB187LX
VHF variable capacitance diode
www..com
8. Abbreviations
Table 6. Acronym SMD VHF Abbreviations Description Surface Mounted Device Very High Frequency
9. Revision history
Table 7. Revision history Release date 20090219 Data sheet status Product data sheet Change notice Supersedes Document ID BB187LX_1
BB187LX_1
(c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 01 -- 19 February 2009
5 of 7
NXP Semiconductors
BB187LX
VHF variable capacitance diode
www..com
10. Legal information
10.1 Data sheet status
Document status[1][2] Objective [short] data sheet Preliminary [short] data sheet Product [short] data sheet
[1] [2] [3]
Product status[3] Development Qualification Production
Definition This document contains data from the objective specification for product development. This document contains data from the preliminary specification. This document contains the product specification.
Please consult the most recently issued document before initiating or completing a design. The term `short data sheet' is explained in section "Definitions". The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.nxp.com.
10.2 Definitions
Draft -- The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet -- A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local NXP Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail.
malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer's own risk. Applications -- Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Limiting values -- Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) may cause permanent damage to the device. Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the Characteristics sections of this document is not implied. Exposure to limiting values for extended periods may affect device reliability. Terms and conditions of sale -- NXP Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms, including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by NXP Semiconductors. In case of any inconsistency or conflict between information in this document and such terms and conditions, the latter will prevail. No offer to sell or license -- Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights.
10.3 Disclaimers
General -- Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. Right to make changes -- NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use -- NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or
10.4 Trademarks
Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners.
11. Contact information
For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com
BB187LX_1
(c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 01 -- 19 February 2009
6 of 7
NXP Semiconductors
BB187LX
VHF variable capacitance diode
www..com
12. Contents
1 1.1 1.2 1.3 2 3 4 5 6 7 8 9 10 10.1 10.2 10.3 10.4 11 12 Product profile . . . . . . . . . . . . . . . . . . . . . . . . . . General description. . . . . . . . . . . . . . . . . . . . . . Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . Pinning information . . . . . . . . . . . . . . . . . . . . . . Ordering information . . . . . . . . . . . . . . . . . . . . . Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . Package outline . . . . . . . . . . . . . . . . . . . . . . . . . Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . Revision history . . . . . . . . . . . . . . . . . . . . . . . . . Legal information. . . . . . . . . . . . . . . . . . . . . . . . Data sheet status . . . . . . . . . . . . . . . . . . . . . . . Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contact information. . . . . . . . . . . . . . . . . . . . . . Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 1 1 1 1 2 2 2 4 5 5 6 6 6 6 6 6 7
Please be aware that important notices concerning this document and the product(s) described herein, have been included in section `Legal information'.
(c) NXP B.V. 2009.
All rights reserved.
For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Date of release: 19 February 2009 Document identifier: BB187LX_1

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