Power line chokes Current-compensated E core double chokes 250 V AC, 0.3 … 1.8 A, 3.3 … 100 mH Series/Type: B82731T %BUB4IFFU October 2008 Date: © EPCOS AG 2008. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without EPCOS’ prior express consent is prohibited. Power line chokes B82731T Current-compensated E core double chokes Rated voltage 250 V AC Rated current 0.3 A to 1.8 A Rated inductance 3.3 mH to 100 mH Construction ■ ■ ■ ■ ■ ■ Current-compensated double choke Closed E ferrite core Closed PET coil former with 4 sections (UL 94 V-0) Without encapsulation 4-section winding Clearances > 2.5 mm, creepage distances > 3 mm Features ■ ■ ■ ■ ■ ■ ■ ■ High resonance frequency due to 2-section winding High pulse strength Low whirring noise Approx. 2% stray inductance for symmetrical interference suppression Suitable for wave soldering Design complies with EN 60938-2 (VDE 0565-2) VDE and UL approval RoHS-compatible Applications ■ Suppression of common-mode interferences ■ Electronic ballasts for lamps ■ Switch-mode power supplies for consumer electronics Terminals ■ Pins 0.64 × 0.64 (mm) ■ Lead spacing 10 × 10 (mm) Marking Manufacturer, rated current, rated inductance, approvals, pin 1 marking, ordering code, date of manufacture (YYWW), production place Delivery mode Blister tray in cardboard box Please read Cautions and warnings and Important notes at the end of this document. 2 10/08 Power line chokes B82731T Current-compensated E core double chokes Dimensional drawing and pin configuration 3 1 3 6 4 10±0.2 1 6 10±0.2 4 IND0360-U _ 0.7 3.5 +0.0 21.1 max. 21.5 max. ø1.45±0.05 6 4 13.5 max. 10 0.64 Marking of pin 1 1 3 10 Recommended hole arrangement (view in mounting direction) IND0359-Z-E IND0361-L-E Dimensions in mm Please read Cautions and warnings and Important notes at the end of this document. 3 10/08 Power line chokes B82731T Current-compensated E core double chokes Technical data and measuring conditions Rated voltage VR 250 V AC (50/60 Hz) Test voltage Vtest 1500 V AC, 2 s (line/line) Rated temperature TR 40 °C Rated current IR Referred to 50 Hz and rated temperature Rated inductance LR Measured with Agilent 4284A at 10 kHz, 0.1 mA, 20 °C Inductance is specified per winding. Inductance tolerance −30/+50% at 20 °C Inductance decrease ΔL/L0 < 10% at DC magnetic bias with IR, 20 °C Stray inductance Lstray,typ Measured with Agilent 4284A at 10 kHz, 5 mA, 20 °C, typical values DC resistance Rtyp Measured at 20 °C, typical values, specified per winding Solderability (lead-free) Sn96.5Ag3.0Cu0.5: (245 ±5) °C, (3 ±0.3) s Wetting of soldering area ≥ 95% (to IEC 60068-2-20, test Ta) Resistance to soldering heat (wave soldering) (260 ±5) °C, (10 ±1) s (to IEC 60068-2-20, test Tb) Climatic category 40/125/56 (to IEC 60068-1) Storage conditions (packaged) –25 °C … +40 °C, ≤ 75% RH Weight Approx. 15 g Approvals EN 60938-2, UL 1283 Please read Cautions and warnings and Important notes at the end of this document. 4 10/08 Power line chokes B82731T Current-compensated E core double chokes Characteristics and ordering codes IR LR Lstray,typ Rtyp Ordering code Approvals A mH μH mΩ 0.30 100 2000 6600 B82731T2301A020 0.35 68 1300 4400 B82731T2351A020 0.45 47 950 2800 B82731T2451A020 0.55 39 800 2200 B82731T2551A020 0.65 27 550 1600 B82731T2651A020 0.8 15 300 950 B82731T2801A020 1.0 10 200 630 B82731T2102A020 1.3 6.8 140 370 B82731T2132A020 1.8 3.3 65 200 B82731T2182A020 × × × × × × × × × × × × × × × × × × × = approval granted Sample kit available. Ordering code: B82731X002 For more information refer to chapter “Sample kits”. Impedance |Z| versus frequency f measured with windings in parallel at 20 °C typical values Current derating Iop/IR versus ambient temperature TA IND0363-B 10 7 B82731 Ω I op I R 1.2 |Z| 10 6 10 5 T2551A020 T2451A020 T2351A020 T2301A020 1.0 TR = 40 ˚C 0.8 0.6 10 4 0.4 T2182A020 T2132A020 T2102A020 T2801A020 T2651A020 10 3 10 2 4 10 IND0373-A-E 1.4 10 5 10 6 0.2 0 Hz 10 7 f Please read Cautions and warnings and Important notes at the end of this document. 0 20 40 60 80 100 ˚C 140 TA 5 10/08 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 10/08 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