SMT power inductors Size 12.5 x 12.5 x 8.5 (mm) Series/Type: Ordering code: B82477R4 Date: June 2012 Content of header bars 1 and 2 of data sheet will be automatically entered in headers and footers! Please fill in the table and then change the color to "white". This ensures that the table disappears (invisible) for the customer PDF. Don't change formatting when entering or pasting text in the table and don't add any cell or line in and to it! Identification/Classification 1 (header 1 + top left bar): SMT power inductors Identification/Classification 2 (header 2 + bottom left header bar): Size 12.5 x 12.5 x 8.5 (mm) Ordering code: (top right header bar) Series/Type: (bottom right header bar) B82477R4 Preliminary data (optional): (if necessary) Department: Date: June 2012 EPCOS AG 2012. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without EPCOS' prior express consent is prohibited. SMT power inductors Size 12.5 x 12.5 x 8.5 (mm) B82477R4 Rated inductance 0.82 ... 1000 µH Construction Ferrite core Magnetically shielded Winding: enamel copper wire Winding soldered to terminals Injection molded base Features High mechanical stability Temperature range up to +150 °C High rated current Increased current handling capability compared to B82477P4 series (Isat +30%) Suitable for lead-free reflow soldering as referenced in JEDEC J-STD 020D RoHS-compatible Halogen Free in the meaning of Cl 900ppm, Br 900pm, Cl+Br 1500ppm Applications Filtering of supply voltages Coupling, decoupling DC/DC converters Automotive electronics Terminals Base material Cu (L ≤10 µH), CuSn6P (L >15 µH) Layer composition Ni, Sn (lead-free) Electro-plated Marking Marking on component: Manufacturer, L value (µH, coded), manufacturing date (YWWD) Minimum data on reel: Manufacturer, ordering code, L value, quantity, date of packing Delivery mode and packing unit 24-mm blister tape, wound on 330-mm reel Packing unit: 350 pcs./reel June 2012 Please read Cautions and warnings and Important notes at the end of this document. Page 2 of 8 SMT power inductors Size 12.5 x 12.5 x 8.5 (mm) B82477R4 Dimensional drawing and layout recommendation Dimensions in mm Taping and packing Blister tape Dimensions in mm June 2012 Please read Cautions and warnings and Important notes at the end of this document. Page 3 of 8 SMT power inductors Size 12.5 x 12.5 x 8.5 (mm) B82477R4 Technical data and measuring conditions Rated inductance LR Measured with LCR meter Agilent 4284A at frequency fL, 0.1 V, +20 °C Rated temperature TR +85 °C Rated current IR Saturation current ISat Max. permissible DC with temperature increase of ≤40 K measured at +85°C Max. permissible DC with inductance decrease ∆L/L0 of approx. 10% DC resistance Rmax Measured at +20 °C Solderability (lead-free) Dip and look method Sn95.5Ag3.8Cu0.7: +(245 5) °C, (3 0.3) s Wetting of soldering area 90% (based on IEC 60068-2-58) Resistance to soldering heat +260 °C, 40 s (as referenced in JEDEC J-STD 020D) Climatic category 55/150/56 (to IEC 60068-1) Storage conditions Mounted: –55 °C … +150 °C Packaged: –25 °C … +40 °C, ≤75% RH Weight Approx. 4 g June 2012 Please read Cautions and warnings and Important notes at the end of this document. Page 4 of 8 SMT power inductors Size 12.5 x 12.5 x 8.5 (mm) B82477R4 Characteristics and ordering codes LR µH 0.82 1.50 2.00 3.00 3.60 4.70 5.60 6.80 10 15 22 33 47 68 100 150 220 330 470 680 1000 Tolerance fL MHz 20% = M 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 IR A 11.5 9.75 8.90 8.25 8.05 7.50 7.25 6.60 5.90 5.00 4.20 3.38 3.20 2.65 2.25 1.80 1.35 1.12 1.02 0.80 0.65 Isat A (min) A (typ) 27.0 38.0 20.0 27.0 18.0 24.0 15.5 18.0 13.0 16.0 12.2 14.25 11.0 12.75 10.5 12.0 8.75 10.25 7.25 8.75 6.10 7.25 5.20 6.00 4.30 4.90 3.55 3.90 2.90 3.25 2.40 2.80 2.00 2.20 1.70 1.80 1.35 1.50 1.10 1.25 0.95 1.05 Rmax mΩ 5.0 6.5 8.0 9.0 10.0 11.0 11.5 15.0 18.5 25.0 32.0 50.0 60.0 85.0 120 175 290 425 605 860 1350 Ordering code B82477R4821M100 B82477R4152M100 B82477R4202M100 B82477R4302M100 B82477R4362M100 B82477R4472M100 B82477R4562M100 B82477R4682M100 B82477R4103M100 B82477R4153M100 B82477R4223M100 B82477R4333M100 B82477R4473M100 B82477R4683M100 B82477R4104M100 B82477R4154M100 B82477R4224M100 B82477R4334M100 B82477R4474M100 B82477R4684M100 B82477R4105M100 Current derating Iop/IR versus ambient temperature TA (rated temperature TR = +85°C) June 2012 Please read Cautions and warnings and Important notes at the end of this document. Page 5 of 8 SMT power inductors Size 12.5 x 12.5 x 8.5 (mm) B82477R4 Typical curves: Inductance vs. DC superposition measured with LCR meter Agilent 4284A at Ta=+20 °C 820nH 1.2 3µH 5.0 1.0 4.0 L/µH 0.8 L / µH 3.0 0.6 2.0 0.4 1.0 0.2 0.0 0.0 0 5000 10000 15000 20000 25000 30000 35000 0 40000 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 Idc [mA] Idc [mA] 10µH 33µH 15.0 50 L/µH L/µH 12.5 10.0 40 30 7.5 20 5.0 10 2.5 0.0 0 0 2000 4000 6000 8000 10000 12000 14000 0 1000 2000 3000 4000 Idc [mA] 100µH 150 5000 6000 7000 8000 9000 10000 Idc [mA] 330µH 500 125 L/µH 400 100 L/µH 300 75 200 50 100 25 0 0 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 Idc [mA] 0 500 1000 1500 2000 2500 3000 Idc [mA] 1000µH 1500 L/µH 1250 1000 750 500 250 0 0 200 400 600 800 1000 1200 1400 1600 Idc [mA] June 2012 Please read Cautions and warnings and Important notes at the end of this document. Page 6 of 8 SMT power inductors Size 12.5 x 12.5 x 8.5 (mm) B82477R4 Cautions and warnings ■ Please note the recommendations in our Inductors data book (latest edition) and in the data sheets. – Particular attention should be paid to the derating curves given there. – The soldering conditions should also be observed. Temperatures quoted in relation to wave soldering refer to the pin, not the housing. ■ If the components are to be washed varnished it is necessary to check whether the washing varnish agent that is used has a negative effect on the wire insulation, any plastics that are used, or on glued joints. In particular, it is possible for washing varnish agent residues to have a negative effect in the long-term on wire insulation Washing processes may damage the product due to the possible static or cyclic mechanical loads (e.g. ultrasonic cleaning). They may cause cracks to develop on the product and its parts, which might lead to reduced reliability or lifetime. ■ The following points must be observed if the components are potted in customer applications: – Many potting materials shrink as they harden. They therefore exert a pressure on the plastic housing or core. This pressure can have a deleterious effect on electrical properties, and in extreme cases can damage the core or plastic housing mechanically. – It is necessary to check whether the potting material used attacks or destroys the wire insulation, plastics or glue. – The effect of the potting material can change the high-frequency behaviour of the components. ■ Ferrites are sensitive to direct impact. This can cause the core material to flake, or lead to breakage of the core. ■ Even for customer-specific products, conclusive validation of the component in the circuit can only be carried out by the customer. June 2012 Please read Cautions and warnings and Important notes at the end of this document. Page 7 of 8 Important notes The following applies to all products named in this publication: 1. 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. 2. 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. 3. The warnings, cautions and product-specific notes must be observed. 4. 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. 5. 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. 6. 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). 7. The trade names EPCOS, BAOKE, Alu-X, CeraDiode, CeraLink, CSMP, CSSP, CTVS, DeltaCap, DigiSiMic, DSSP, FilterCap, 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. Page 8 of 8