important notice dear customer, as from october 1st, 2006 philips semiconductors has a new trade name - nxp semiconductors, which will be used in future data sheets together with new contact details. in data sheets where the previous philips references remain, please use the new links as shown below. http://www.philips.semiconductors.com use http://www.nxp.com http://www.semiconductors.philips.com use http://www.nxp.com (internet) sales.addresses@www.semiconductors.philips.com use salesaddresses@nxp.com (email) the copyright notice at the bottom of each page (or elsewhere in the document, depending on the version) - ? koninklijke philips electronics n.v. (year). all rights reserved - is replaced with: - ? nxp b.v. (year). all rights reserved. - if you have any questions related to the data sheet, please contact our nearest sales of?ce via e-mail or phone (details via salesaddresses@nxp.com). thank you for your cooperation and understanding, nxp semiconductors BA891 band-switching diode rev. 04 8 january 2008 product data sheet
nxp semiconductor s p r oduct speci?cation band-s witc hing diode b a891 fea tures ultr a small plastic smd pac kage low diode capacitance: max. 1.05 pf low diode forward resistance: max. 0.7 w small inductance . applica tions low loss band-switching in vhf television tuners surface mount band-switching circuits. description the BA891 is a planar high performance band-switching diode in the ultra small sod523 smd plastic package. marking pinning type number marking code BA891 7 pin description 1 cathode 2 anode handbook, halfpage 12 top view mam405 the marking band indicates the cathode. fig.1 simplified outline (sod523) and symbol. limiting values in accordance with the absolute maximum rating system (iec 60134). symbol parameter conditions min. max. unit v r continuous reverse voltage - 35 v i f continuous forward current - 100 ma p tot total power dissipation t s =90 c - 715 mw t stg storage temperature - 65 +150 c t j junction temperature - 65 +150 c rev. 04 - 8 january 2008 2 of 6
nxp semiconductors product speci?cation band-s witching diode BA891 thermal chara cteristics chara cteristics t j = 2 5 c unless otherwise speci?ed. note 1. guaranteed on aql basis; inspection level s4, aql 1.0. symbol p arameter v alue unit r th j-s ther mal resistance from junction to solder ing point 85 k/w symbol p arameter conditions typ . max. unit v f f orw ard v oltage i f =1 0m a - 1v i r re v erse current v r =3 0v - 20 na c d diode capacitance f = 1 mhz; note 1; see fig.2 v r = 1 v 0.8 1.05 pf v r = 3 v 0.65 0.9 pf r d diode f orw ard resistance f = 100 mhz; note 1; see fig.3 i f = 3 ma 0.42 0.7 w i f = 1 0 m a 0.28 0.5 w l s ser ies inductance 0.6 - nh handbook, halfpage 0102030 1 0 0.8 0.6 0.4 0.2 mgl479 v r (v) c d (pf) fig.2 diode capacitance as a function of reverse voltage; typical values. f = 1 mhz; t j =25 c. handbook, halfpage 10 1 10 - 1 mgl478 10 - 1 110 i f (ma) r d ( w ) fig.3 diode forward resistance as a function of forward current; typical values. f = 100 mhz; t j =25 c. rev. 04 - 8 january 2008 3 of 6
nxp semiconductors product speci?cation band-s witching diode BA891 p a cka ge outline references outline version european projection issue date iec jedec jeita sod523 sc-79 02-12-13 06-03-16 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 rev. 04 - 8 january 2008 4 of 6
nxp semiconductors BA891 band-switching diode legal information 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 . 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. 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. trademarks notice: all referenced brands, product names, service names and trademarks are the property of their respective owners. contact information for additional information, please visit: http://www .nxp.com for sales of?ce addresses, 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. rev. 04 - 8 january 2008 5 of 6
nxp semiconductors BA891 band-switching diode ? nxp b.v. 2008. 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: 8 january 2008 document identifier: BA891_n_4 please be aware that important notices concerning this document and the product(s) described herein, have been included in section legal information. revision history revision history document id release date data sheet status change notice supersedes BA891_n_4 20080108 product data sheet - BA891_3 modi?cations: ? package outline on page 4 changed BA891_3 (9397 750 09281) 20020125 product speci?cation - BA891_2 BA891_2 (9397 750 04308) 19980831 product speci?cation - BA891_1 BA891_1 (9397 750 04193) 19980818 product speci?cation - -
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