SAW Components SAW filter Automotive telematics Series/type: Ordering code: B3912 B39242B3912U410 Date: Version: April 07, 2011 2.1 EPCOS AG 2011. Reproduction, publication and dissemination of this data sheet, enclosures hereto and the information contained therein without EPCOS’ prior express consent is prohibited. SAW Components B3912 SAW filter 2448.50 MHz Data sheet Application ■ Low-loss RF filter for automotive telematics Features ■ ■ ■ ■ ■ ■ ■ ■ ■ Package size 3.0 x 3.0 x 1.1 mm3 Package code DCC6C RoHS compatible Approximate weight 0.037 g Package for Surface Mount Technology (SMT) Ni, gold-plated terminals Lead free soldering compatible with J - STD20C AEC-Q200 qualified component family Electrostatic Sensitive Device (ESD) Pin configuration ■ 2 ■ 5 ■ 1,3,4,6 Input Output Case ground Please read cautions and warnings and important notes at the end of this document. 2 April 07, 2011 SAW Components B3912 SAW filter 2448.50 MHz Data sheet Characteristics Temperature range for specification: Terminating source impedance: Terminating load impedance: T = –40 ˚C to +85 ˚C 50 Ω and matching network ZS = ZL = 50 Ω and matching network min. max. — typ. @ 25 ˚C 2448.50 — MHz Maximum insertion attenuation αmax 2400.00 ... 2497.00 MHz — 1.7 3.0 dB Amplitude ripple (p-p) ∆α 2400.00 ... 2497.00 MHz — 0.7 2.0 dB VSWR Input Output — — 1.5 1.5 2.0 2.0 50.00 ... 2300.00 MHz 20 24 — dB 2600.00 ... 3500.00 MHz 3500.00 ... 5000.00 MHz 22 25 26 33 — — dB dB Center frequency fC 2400.00 ... 2497.00 MHz 2400.00 ... 2497.00 MHz α Attenuation Please read cautions and warnings and important notes at the end of this document. 3 April 07, 2011 SAW Components B3912 SAW filter 2448.50 MHz Data sheet Maximum ratings Operable temperature range T –45/+125 ˚C Storage temperature range DC voltage Source power –45/+125 ˚C 6 V 20 dBm Tstg VDC PS Please read cautions and warnings and important notes at the end of this document. 4 source impedance 50 Ω April 07, 2011 SAW Components B3912 SAW filter 2448.50 MHz Data sheet Matching network to 50 Ω (element values depend on pcb layout and equivalent circuit) Cp1 = 1.0 pF Ls2 = 2.7 nH Ls3 = 2.7 nH Cp4 = 1.0 pF Please read cautions and warnings and important notes at the end of this document. 5 April 07, 2011 SAW Components B3912 SAW filter 2448.50 MHz Data sheet Transfer function Transfer function (wideband) Please read cautions and warnings and important notes at the end of this document. 6 April 07, 2011 SAW Components B3912 SAW filter 2448.50 MHz Data sheet References Type B3912 Ordering code B39242B3912U410 Marking and package C61157-A7-A67 Packaging F61074-V8228-Z000 Date codes L_1126 S-parameters B3912_NB.s2p, B3912_WB.s2p see file header for port/pin assignment table Soldering profile S_6001 RoHS compatible defined as compatible with the following documents: "DIRECTIVE 2002/95/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 27 January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment. 2005/618/EC from April 18th, 2005, amending Directive 2002/95/EC of the European Parliament and of the Council for the purposes of establishing the maximum concentration values for certain hazardous substances in electrical and electronic equipment." Moldability Before using in overmolding environment, please contact your EPCOS sales office. Matching coils See Inductor pdf-catalog http://www.tdk.co.jp/tefe02/coil.htm#aname1 and Data Library for circuit simulation http://www.tdk.co.jp/etvcl/index.htm For further information please contact your local EPCOS sales office or visit our webpage at www.epcos.com . Published by EPCOS AG Systems, Acoustics, Waves Business Group P.O. Box 80 17 09, 81617 Munich, GERMANY EPCOS AG 2011. This brochure replaces the previous edition. For questions on technology, prices and delivery please contact the Sales Offices of EPCOS AG or the international Representatives. Due to technical requirements components may contain dangerous substances. For information on the type in question please also contact one of our Sales Offices. Please read cautions and warnings and important notes at the end of this document. 7 April 07, 2011 Important notes The following applies to all products named in this publication: 1. 2. 3. 4. 5. 6. 7. Some parts of this publication contain statements about the suitability of our products for certain areas of application. These statements are based on our knowledge of typical requirements that are often placed on our products in the areas of application concerned. We nevertheless expressly point out that such statements cannot be regarded as binding statements about the suitability of our products for a particular customer application. As a rule, EPCOS is either unfamiliar with individual customer applications or less familiar with them than the customers themselves. For these reasons, it is always ultimately incumbent on the customer to check and decide whether an EPCOS product with the properties described in the product specification is suitable for use in a particular customer application. We also point out that in individual cases, a malfunction of electronic components or failure before the end of their usual service life cannot be completely ruled out in the current state of the art, even if they are operated as specified. In customer applications requiring a very high level of operational safety and especially in customer applications in which the malfunction or failure of an electronic component could endanger human life or health (e.g. in accident prevention or life-saving systems), it must therefore be ensured by means of suitable design of the customer application or other action taken by the customer (e.g. installation of protective circuitry or redundancy) that no injury or damage is sustained by third parties in the event of malfunction or failure of an electronic component. The warnings, cautions and product-specific notes must be observed. In order to satisfy certain technical requirements, some of the products described in this publication may contain substances subject to restrictions in certain jurisdictions (e.g. because they are classed as hazardous). Useful information on this will be found in our Material Data Sheets on the Internet (www.epcos.com/material). Should you have any more detailed questions, please contact our sales offices. We constantly strive to improve our products. Consequently, the products described in this publication may change from time to time. The same is true of the corresponding product specifications. Please check therefore to what extent product descriptions and specifications contained in this publication are still applicable before or when you place an order. We also reserve the right to discontinue production and delivery of products. Consequently, we cannot guarantee that all products named in this publication will always be available. The aforementioned does not apply in the case of individual agreements deviating from the foregoing for customer-specific products. Unless otherwise agreed in individual contracts, all orders are subject to the current version of the “General Terms of Delivery for Products and Services in the Electrical Industry” published by the German Electrical and Electronics Industry Association (ZVEI). The trade names EPCOS, BAOKE, Alu-X, CeraDiode, CSMP, CSSP, CTVS, DeltaCap, DigiSiMic, DSSP, FormFit, MiniBlue, MiniCell, MKD, MKK, MLSC, MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, PhiCap, SIFERRIT, SIFI, SIKOREL, SilverCap, SIMDAD, SiMic, SIMID, SineFormer, SIOV, SIP5D, SIP5K, ThermoFuse, WindCap are trademarks registered or pending in Europe and in other countries. Further information will be found on the Internet at www.epcos.com/trademarks. 8 April 07, 2011