01930194| Datasheet

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VHF Chokes
General

Overview EPCOS VHF chokes are leaded EMI suppression chokes with insulating sleeves. Their outstanding feature is their compact size.
s B82131 ... 134 types are available in four different sizes. They consist of a cylindrical carbonyl

s s s s

iron core with the leads cemented in place. The single-layer winding is connected to the leads using a high-temperature solder. The B82111-E-C design has the same construction, except that it has a ferrite core. For higher rated currents, type B82111-B-C, consisting of an enamel copper wire coil with a ferrite core cemented into it, is available (in three different sizes). B82500, which is manufactured with a low-capacitance multilayer winding, is used to achieve high inductance values. For broadband EMI suppression in the frequency range 50 ... 200 MHz, VHF chokes with sixaperture ferrite cores are available.

In addition to these standard choke series, customized designs consisting of a self-supporting winding with a ferrite core cemented into them and without insulating sleeves, are available. Designs with article number B82111-B-A are mainly used in automotive electronics. Typical applications On account of their insulating sleeves, VHF chokes are predestined for line voltage applications. They are required for
s Blocking and filtering high frequencies s Suppression of EMI interference in small appliances s Decoupling in telecommunications and entertainment electronics

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