DISCRETE SEMICONDUCTORS DATA SHEET M3D319 BA891 Band-switching diode Product specification Supersedes data of 1998 Aug 31 2002 Jan 25 Philips Semiconductors Product specification Band-switching diode BA891 FEATURES PINNING * Ultra small plastic SMD package PIN DESCRIPTION * Low diode capacitance: max. 1.05 pF 1 cathode * Low diode forward resistance: max. 0.7 2 anode * Small inductance. APPLICATIONS * Low loss band-switching in VHF television tuners * Surface mount band-switching circuits. handbook, halfpage DESCRIPTION 1 2 Top view The BA891 is a planar high performance band-switching diode in the ultra small SOD523 SMD plastic package. MAM405 The marking band indicates the cathode. MARKING TYPE NUMBER MARKING CODE BA891 Fig.1 Simplified outline (SOD523) and symbol. 7 LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 60134). SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT VR continuous reverse voltage - 35 V IF continuous forward current - 100 mA Ptot total power dissipation - 715 mW Tstg storage temperature -65 +150 C Tj junction temperature -65 +150 C 2002 Jan 25 Ts = 90 C 2 Philips Semiconductors Product specification Band-switching diode BA891 THERMAL CHARACTERISTICS SYMBOL PARAMETER Rth j-s VALUE UNIT 85 K/W thermal resistance from junction to soldering point CHARACTERISTICS Tj = 25 C unless otherwise specified. SYMBOL PARAMETER MAX. UNIT - 1 V reverse current VR = 30 V - 20 nA diode capacitance f = 1 MHz; note 1; see Fig.2 VR = 1 V 0.8 1.05 pF VR = 3 V 0.65 0.9 pF IF = 3 mA 0.42 0.7 IF = 10 mA 0.28 0.5 0.6 - nH forward voltage IR Cd diode forward resistance LS TYP. IF = 10 mA VF rD CONDITIONS f = 100 MHz; note 1; see Fig.3 series inductance Note 1. Guaranteed on AQL basis; inspection level S4, AQL 1.0. MGL479 1 MGL478 10 handbook, halfpage handbook, halfpage Cd (pF) rD () 0.8 0.6 1 0.4 0.2 10-1 10-1 0 0 10 20 VR (V) 30 f = 1 MHz; Tj = 25 C. f = 100 MHz; Tj = 25 C. Fig.2 Fig.3 Diode capacitance as a function of reverse voltage; typical values. 2002 Jan 25 3 1 IF (mA) 10 Diode forward resistance as a function of forward current; typical values. Philips Semiconductors Product specification Band-switching diode BA891 PACKAGE OUTLINE Plastic surface mounted package; 2 leads SOD523 A c v M A HE A D 1 E 0 0.5 1 mm scale 2 DIMENSIONS (mm are the original dimensions) bp (1) UNIT A bp c D E HE v mm 0.7 0.5 0.35 0.25 0.2 0.1 1.3 1.1 0.9 0.7 1.7 1.5 0.15 Note 1. The marking bar indicates the cathode. OUTLINE VERSION SOD523 2002 Jan 25 REFERENCES IEC JEDEC EIAJ SC-79 4 EUROPEAN PROJECTION ISSUE DATE 98-11-25 Philips Semiconductors Product specification Band-switching diode BA891 DATA SHEET STATUS DATA SHEET STATUS(1) PRODUCT STATUS(2) DEFINITIONS 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. 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. 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. Changes will be communicated according to the Customer Product/Process Change Notification (CPCN) procedure SNW-SQ-650A. 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. DEFINITIONS DISCLAIMERS 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. 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. 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. Right to make changes Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. 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. 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. 2002 Jan 25 5 Philips Semiconductors Product specification Band-switching diode BA891 NOTES 2002 Jan 25 6 Philips Semiconductors Product specification Band-switching diode BA891 NOTES 2002 Jan 25 7 Philips Semiconductors - a worldwide company Contact information For additional information please visit http://www.semiconductors.philips.com. Fax: +31 40 27 24825 For sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com. SCA74 (c) Koninklijke Philips Electronics N.V. 2002 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 without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. Printed in The Netherlands 613512/03/pp8 Date of release: 2002 Jan 25 Document order number: 9397 750 09281