d a t a sh eet product speci?cation supersedes data of 2002 nov 18 2004 mar 29 discrete semiconductors bb145b low-voltage variable capacitance diode
2004 mar 29 2 philips semiconductors product speci?cation low-voltage variable capacitance diode bb145b 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. pinning pin description 1 cathode 2 anode 12 top view sym008 fig.1 simplified outline (sod523; sc-79) and symbol. marking code: z. orientation of marking code as shown. cathode side indicated by a bar. z ordering information limiting values in accordance with the absolute maximum rating system (iec 60134). electrical characteristics t j =25 c unless otherwise speci?ed. type number package name description version bb145b - plastic surface mounted package; 2 leads sod523 symbol parameter conditions min. max. unit v r continuous reverse voltage - 6v v rm peak reverse voltage in series with a 10 k w resistor - 8v i f continuous forward current - 20 ma t stg storage temperature - 55 +150 c t j operating junction temperature - 55 +150 c symbol parameter conditions min. max. unit i r reverse current v r = 6 v; see fig.3 - 10 na v r =6v; t j =85 c; see fig.3 - 200 na r s diode series resistance f = 470 mhz; v r =1v - 0.6 w c d diode capacitance v r = 1 v; f = 1 mhz; see figs 2 and 4 6.4 7.2 pf v r = 4 v; f = 1 mhz; see figs 2 and 4 2.55 2.95 pf capacitance ratio f = 1 mhz 2.2 - c d1v () c d4v () ----------------
2004 mar 29 3 philips semiconductors product speci?cation low-voltage variable capacitance diode bb145b graphical data handbook, full pagewidth 0 10 2 4 6 8 mcd782 10 - 1 1 v r (v) c d (pf) 10 fig.2 diode capacitance as a function of reverse voltage; typical values. f = 1 mhz; t j =25 c. mlc816 10 2 10 10 3 i r (na) 1 t j ( c) 0 100 80 40 60 20 fig.3 reverse current as a function of junction temperature; maximum values. handbook, halfpage 10 - 3 10 - 4 mgs352 10 - 1 110 tc d (k - 1 ) v r (v) fig.4 temperature coefficient of diode capacitance as a function of reverse voltage; typical values.
2004 mar 29 4 philips semiconductors product speci?cation low-voltage variable capacitance diode bb145b 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 12 h e e b p a c v m a a unit b p cd e v mm ah e 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
2004 mar 29 5 philips semiconductors product speci?cation low-voltage variable capacitance diode bb145b 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 speci?cation for product development. philips semiconductors reserves the right to change the speci?cation in any manner without notice. ii preliminary data quali?cation this data sheet contains data from the preliminary speci?cation. supplementary data will be published at a later date. philips semiconductors reserves the right to change the speci?cation 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 speci?cation. 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 noti?cation (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 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 ? applications that are described herein for any of these products are for illustrative purposes only. philips semiconductors make no representation or warranty that such applications will be 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 semiconductors customers using or selling these products 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.
? koninklijke philips electronics n.v. 2004 sca76 all rights are reserved. reproduction in whole or in part is prohibited without the prior written consent of the copyright owne r. 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 without notice. no liability will be accepted by the publisher for any consequence of its use. publication thereof does not con vey nor imply any license under patent- or other industrial or intellectual property rights. philips semiconductors C a worldwide company contact information for additional information please visit http://www.semiconductors.philips.com . fax: +31 40 27 24825 for sales of?ces addresses send e-mail to: sales.addresses@www.semiconductors.philips.com . printed in the netherlands r77/03/pp 6 date of release: 2004 mar 29 document order number: 9397 750 12974
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