1. product pro?le 1.1 general description the BB179BLX 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 n excellent linearity n excellent matching to 2 % dma n ultra small leadless smd package n c d(28v) :2.1 pf; c d(1v) to c d(28v) ratio typical 9 n low series resistance 1.3 applications n voltage controlled oscillators (vco) n electronic tuning in uhf television tuners 2. pinning information [1] the marking bar indicates the cathode. 3. ordering information BB179BLX uhf variable capacitance diode rev. 01 29 january 2009 product data sheet table 1. pinning pin description simpli?ed outline graphic symbol 1 cathode [1] 2 anode transparent top view 2 1 sym008 table 2. ordering information type number package name description version BB179BLX - leadless ultra small plastic package; 2 terminals; body 1.0 0.6 0.4 mm sod882t
BB179BLX_1 ? nxp b.v. 2009. all rights reserved. product data sheet rev. 01 29 january 2009 2 of 7 nxp semiconductors BB179BLX uhf variable capacitance diode 4. marking 5. limiting values 6. characteristics table 3. marking codes type number marking code BB179BLX l5 table 4. limiting values in accordance with the absolute maximum rating system (iec 60134). symbol parameter conditions min max unit v r reverse voltage - 32 v i f forward current - 20 ma t stg storage temperature - 55 +150 c t j junction temperature - 55 +125 c table 5. characteristics symbol parameter conditions min typ max unit i r reverse current see figure 3 v r =30v - - 10 na v r =30v; t j =85 c - - 200 na r s diode series resistance f = 470 mhz at c d = 9 pf; see figure 2 - 0.65 - w c d diode capacitance f = 1 mhz; see figure 1 and figure 4 v r = 1 v 18.22 - 20 pf v r = 28 v 1.9 2.1 2.25 pf c d(1v) /c d(2v) diode capacitance ratio (1 v to 2 v) f = 1 mhz - 1.27 - c d(1v) /c d(28v) diode capacitance ratio (1 v to 28 v) f = 1 mhz 8.45 9 10.9 c d(25v) /c d(28v) diode capacitance ratio (25 v to 28 v) f = 1 mhz - 1.05 - d c d /c d diode capacitance matching v r = 1 v to 28 v; in sequence of 5 diodes (gliding) --2%
BB179BLX_1 ? nxp b.v. 2009. all rights reserved. product data sheet rev. 01 29 january 2009 3 of 7 nxp semiconductors BB179BLX uhf variable capacitance diode f = 1 mhz; t j =25 c. f = 470 mhz; t j =25 c. fig 1. diode capacitance as a function of reverse voltage; typical values fig 2. diode serial resistance as a function of reverse voltage; typical values t j =0 c to 85 c. fig 3. reverse current as a function of junction temperature; maximum values fig 4. temperature coef?cient of diode capacitance as a function of reverse voltage; typical values 001aaj480 10 20 30 c d (pf) 0 v r (v) 10 - 1 10 2 10 1 001aaj481 0.4 0.2 0.6 0.8 r s ( w ) 0 v r (v) 10 - 1 10 2 10 1 001aaj482 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 001aaj483 10 - 3 10 - 4 10 - 2 tc cd (k - 1 ) 10 - 5
BB179BLX_1 ? nxp b.v. 2009. all rights reserved. product data sheet rev. 01 29 january 2009 4 of 7 nxp semiconductors BB179BLX uhf variable capacitance diode 7. package outline fig 5. package outline sod882t references outline version european projection issue date iec jedec jeita sod882t sod882t 04-12-14 06-04-12 note 1. the marking bar indicates the cathode unit a mm 0.40 0.36 0.55 0.45 0.65 0.55 1.05 0.95 0.30 0.22 a 1 max dimensions (mm are the original dimensions) leadless ultra small plastic package; 2 terminals; body 1 x 0.6 x 0.4 mm a b y e 1 wb m l 1 (2 ) a 1 a b (2 ) (2 ) (2 ) d e (1) 0 0.5 1 mm scale 0.04 b d e e 1 0.65 l 1 w 0.1 y 0.03 2 1 wa m
BB179BLX_1 ? nxp b.v. 2009. all rights reserved. product data sheet rev. 01 29 january 2009 5 of 7 nxp semiconductors BB179BLX uhf variable capacitance diode 8. abbreviations 9. revision history table 6. abbreviations acronym description smd surface mounted device uhf ultra high frequency table 7. revision history document id release date data sheet status change notice supersedes BB179BLX_1 20090129 product data sheet - -
BB179BLX_1 ? nxp b.v. 2009. all rights reserved. product data sheet rev. 01 29 january 2009 6 of 7 nxp semiconductors BB179BLX uhf variable capacitance diode 10. legal information 10.1 data sheet status [1] please consult the most recently issued document before initiating or completing a design. [2] the term short data sheet is explained in section de?nitions. [3] 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 dev ices. the latest product status information is available on the internet at url http://www .nxp .com . 10.2 de?nitions draft the document is a draft version only. the content is still under internal review and subject to formal approval, which may result in modi?cations 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 of?ce. in case of any inconsistency or con?ict with the short data sheet, the full data sheet shall prevail. 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 speci?cations 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 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 customers 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 speci?ed use without further testing or modi?cation. limiting values stress above one or more limiting values (as de?ned 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/pro? le/ter ms , 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 con?ict 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. quick reference data the quick reference data is an extract of the product data given in the limiting values and characteristics sections of this document, and as such is not complete, exhaustive or legally binding. 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 of?ce addresses, please send an email to: salesad dresses@nxp.com document status [1] [2] product status [3] de?nition objective [short] data sheet development this document contains data from the objective speci?cation for product development. preliminary [short] data sheet quali?cation this document contains data from the preliminary speci?cation. product [short] data sheet production this document contains the product speci?cation.
nxp semiconductors BB179BLX uhf variable capacitance diode ? 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: 29 january 2009 document identifier: BB179BLX_1 please be aware that important notices concerning this document and the product(s) described herein, have been included in section legal information. 12. contents 1 product pro?le . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 general description. . . . . . . . . . . . . . . . . . . . . . 1 1.2 features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.3 applications . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 pinning information . . . . . . . . . . . . . . . . . . . . . . 1 3 ordering information . . . . . . . . . . . . . . . . . . . . . 1 4 marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 5 limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 2 6 characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 2 7 package outline . . . . . . . . . . . . . . . . . . . . . . . . . 4 8 abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 9 revision history . . . . . . . . . . . . . . . . . . . . . . . . . 5 10 legal information. . . . . . . . . . . . . . . . . . . . . . . . 6 10.1 data sheet status . . . . . . . . . . . . . . . . . . . . . . . 6 10.2 de?nitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 10.3 disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 10.4 trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 11 contact information. . . . . . . . . . . . . . . . . . . . . . 6 12 contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
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