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SMT power inductors
Size 12.3 x 12.3 x 6.0 (mm)
Series/Type: Date: B82477G2 March 2008
Data Sheet
EPCOS AG 2008. 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 12.3 x 12.3 x 6.0 (mm)
Rated inductance 1 H to 1000 H Rated current 0.4 A to 9 A Construction

B82477G2
Ferrite core Magnetically shielded Winding: enamel copper wire Winding soldered to terminals
Features

Temperature range up to 125 C High rated current Low DC resistance Suitable for lead-free reflow soldering Qualification based on AEC-Q200 RoHS-compatible
Applications

Filtering of supply voltages Coupling, decoupling DC/DC converters Industrial electronics EDP (Electronic Data Processing) Consumer electronics
Terminals
Base material
Cu (L 10 H), CuSn6P (L 15 H) Layer composition Ni, Sn (lead-free) Electro-plated Marking
Marking on component:
Manufacturer, L value (H, 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: 600 pcs./reel
Please read Cautions and warnings and Important notes at the end of this document.
2
03/08
SMT power inductors Size 12.3 x 12.3 x 6.0 (mm)
Dimensional drawing and layout recommendation
1.50.2
1) 1)
B82477G2
50.2
7 12.6
IND0491-M
8.50.2
6 max.
Marking
12.3 max.
12.3 max.
1) Soldering area
IND0490-H-E
Dimensions in mm
Taping and packing Blister tape
1.750.1
40.1 Component
_0 1.5 +0.1
5.4
Reel
210.5 2.50.5 130.2
20.05
12.60.1
11.50.1
240.3
3301
30.4 max.
IND0348-6
1.5 min. 6.9 max. 160.1 Direction of unreeling
IND0390-W-E
Dimensions in mm
Please read Cautions and warnings and Important notes at the end of this document.
3
03/08
751
1.0
SMT power inductors Size 12.3 x 12.3 x 6.0 (mm)
Technical data and measuring conditions Rated inductance LR Rated temperature TR Rated current IR DC resistance Rmax Solderability (lead-free)
B82477G2
Measured with LCR meter Agilent 4284A at frequency fL, 0.1 V, 20 C 85 C Max. permissible DC with temperature increase of 40 K at rated temperature Measured at 20 C Dip and look method Sn95.5Ag3.8Cu0.7: (245 5) C, (5 0.3) s Wetting of soldering area 90% (based on IEC 60068-2-58) 260 C, 10 s (based on IEC 60068-2-58) 55/125/56 (to IEC 60068-1) Mounted: -55 C ... +125 C Packaged: -25 C ... +40 C, 75% RH Approx. 4 g
Resistance to soldering heat Climatic category Storage conditions Weight
Characteristics and ordering codes LR H 1.0 1.3 2.2 3.3 4.7 6.8 7.5 10 12 15 22 33 47 68 100 20%
^
Tolerance M
fL MHz 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001
IR A 9.0 8.7 7.0 6.0 5.0 4.4 4.2 4.0 3.5 3.3 2.8 2.1 1.8 1.5 1.3
Rmax 0.009 0.010 0.014 0.017 0.020 0.022 0.023 0.025 0.027 0.030 0.036 0.057 0.075 0.120 0.160
Ordering code B82477G2102M000 B82477G2132M000 B82477G2222M000 B82477G2332M000 B82477G2472M000 B82477G2682M000 B82477G2752M000 B82477G2103M000 B82477G2123M000 B82477G2153M000 B82477G2223M000 B82477G2333M000 B82477G2473M000 B82477G2683M000 B82477G2104M000
Please read Cautions and warnings and Important notes at the end of this document.
4
03/08
SMT power inductors Size 12.3 x 12.3 x 6.0 (mm)
Characteristics and ordering codes LR H 150 220 330 470 680 1000 20%
^
B82477G2
Tolerance M
fL MHz 0.001 0.001 0.001 0.001 0.001 0.001
IR A 1.0 0.80 0.68 0.58 0.48 0.40
Rmax 0.23 0.40 0.51 0.77 1.20 1.53
Ordering code B82477G2154M000 B82477G2224M000 B82477G2334M000 B82477G2474M000 B82477G2684M000 B82477G2105M000
Sample kit available. Ordering code: B8247XX001 For more information refer to chapter "Sample kits".
Current derating Iop/IR versus ambient temperature TA (rated temperature TR = 85 C)
1.2 I op IR
IND0508-Z
1.0
0.8
0.6
0.4
0.2
0
0
20
40
60
80 100 120 C 150 TA
Please read Cautions and warnings and Important notes at the end of this document.
5
03/08
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.
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.
Please read Cautions and warnings and Important notes at the end of this document.
6
03/08
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, CSMP, CSSP, CTVS, DSSP, MiniBlue, MKK, MLSC, MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, SIFERRIT, SIFI, SIKOREL, SilverCap, SIMDAD, 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. 7 03/09

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