B82498B1681J EPCOS Inc, B82498B1681J Datasheet
B82498B1681J
Specifications of B82498B1681J
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B82498B1681J Summary of contents
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General Technical Information 1 Inductive components for electronic equipment Especially in this age of fully-electronic and highly-integrated equipment, inductive components are indispensable. They are used to store energy intermittently in switch-mode power supplies and DC/DC converters, as parts of high-frequency ...
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General Technical Information 1.3 Switch-mode power supplies, DC/DC converters Inductive components are used for magnetic energy storage in all kinds of switch-mode power sup- plies and DC/DC converters. For example, the SIMID 1812 product range is used in low-power step- ...
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General Technical Information Unsymmetrical interference: – This term is used to describe interference on a single line, relative to the reference potential (fig. 1c) 1.4.2 Characteristics of interferences In order to be able to choose the correct EMC measures, we ...
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General Technical Information 2 Electromagnetic compatibility (EMC) 2.1 Introduction For as long as electronic transmission equipment such as radio, television, and telephone has been in existence, it has had a history of susceptibility to interference from other electronic devices. Legal ...
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General Technical Information EMC components are used to reduce conducted electromagnetic interference to the limits in an EMC plan or to reduce this interference below the limit values specified in the EMC regulations. These components may be installed either in ...
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General Technical Information 2.2 Interference sources and disturbed equipment Interference source An interference source is an electrical device or electrical equipment which emits electromagnetic interference. We can differentiate between two main groups of interference sources corresponding to the type of ...
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General Technical Information Disturbed equipment Electrical devices, equipment and/or systems subject to interference and which can be adversely affected by it are termed disturbed equipment. In the same way as interference sources, disturbed equipment can also be categorized correspond- ing ...
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General Technical Information Netzzuführung Stromwandler Power supply Current Voltage probe Tastkopf probe Netz- Line impedance V U int stabilization S Nachbildung network Messempfänger Selective voltmeter Spektrumanalysator Spectrum analyzer Speicheroszillograph Storage oscilloscope Transientenrekorder Transient recorder int Stabantenne Rod ...
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General Technical Information The following standards and regulations form the framework of the conformity tests: EMC standards Generic standards define the EMC environment in which a device is to operate according to its intended use Emission residential industrial Susceptibility residential ...
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General Technical Information The following table shows the most important standards in the field of immunity to interference. Standard Test characteristics Conducted interference EN 61000-4-4 5/50 ns (single impulse) IEC 61000-4-4 15 kHz burst EN 61000-4-5 1 ...
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General Technical Information An interference source which floating potential primarily emits differential-mode, i.e. symmet- rical interference which is propagated along the connected lines. On power lines, the interference current will flow towards the disturbed equipment on one ...
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General Technical Information It is, therefore, necessary to find out the internal impedances so that optimum filter circuit designs as well as economical solutions can be implemented. The internal impedances of the power networks under consideration are usually known from ...
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General Technical Information When using off-the-shelf filters, observe the following rules: Ensure a proper electrically conductive connection between the filter case and/or filter ground and the metallic case of the interference source or disturbed equipment, and provide sufficient RF decoupling ...
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General Technical Information 7 Electrical characteristics Rated voltage V 7.1 R The rated voltage V is the maximum voltage which can be continuously applied to the R component at temperatures between the lower category temperature T temperature ...
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General Technical Information 7.8 Stray inductance L S The stray inductance L (also termed leakage inductance) is the inductance measured through S both coils when a current-compensated choke is short-circuited at one end. This affects symmetri- cal interference. Fig. 11 ...
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General Technical Information 7.14 Insertion loss The insertion loss is a criterium for the effectivity of interference suppression components, as measured by using a standardized measurement circuit Reference measurement Insertion loss measurement Fig. 12 Definition of insertion loss The input ...
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General Technical Information 8 Mechanical properties 8.1 Potting (economy potting, complete potting) We distinguish between economy potting and complete potting. Economy potting is used to fix the the core and windings in the case and the windings on the core. ...
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General Technical Information Multilayer winding ...
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General Technical Information 8.3 RF characteristics of various types of winding Figure 13 shows the relation between the impedance and the frequency for two chokes of equal in- ductance. One of the chokes has a two-layer winding and the other ...
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General Technical Information Manually wound Machine wound Fig. 14 Impedance | Z | versus frequency f Reproducibility and scatter achieved by manual and by machine winding techniques. 9 Climatic characteristics 9.1 Upper and lower category temperature T The upper category ...
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General Technical Information 9.4 IEC climatic category lEC 60068 -1, Appendix A, defines a method of specifying the climatic category by three groups of numbers delimited by slash characters. Example: 55/085/56 – days 1st ...
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General Technical Information 11 Dangerous substances in components Dangerous substances (as defined by the German regulation “Gefahrstoffverordnung”) are only used in our production and to an extent where the state of the art leaves us no alternative. Wherever possible, we ...