Motore di ricerca datesheet componenti elettronici |
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BC54-16PA Scheda tecnica(PDF) 10 Page - EPCOS |
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BC54-16PA Scheda tecnica(HTML) 10 Page - EPCOS |
10 / 22 page 18 04/00 The following table shows the most important standards in the field of immunity to interference. The IEC 1000 or EN 61000 series of standards are planned as central EMC standards into which all EMC regulations (e.g. IEC 801, IEC 555) are to be integrated in the next few years. 2.5 Propagation of conducted interference In order to be able to choose suitable interference suppression components, the way in which con- ducted interference is propagated needs to be known (fig. 8). Fig. 8 Common-mode and differential-mode interference Standard Test characteristics Phenomena Conducted interference EN 61000-4-4 IEC 61000-4-4 5/50 ns (single impulse) 15 kHz burst Burst Cause: switching processes EN 61000-4-5 IEC 61000-4-5 1,2 / 50 ms (open-circuit voltage) 8 / 20 ms (short-circuit current) Surge (high-energy transients) Cause: lightning strikes mains lines, switching processes EN 61000-4-6 (ENV 50141) IEC 801-6 1 V, 3 V, 10 V 150 kHz … 80 MHz High-frequency coupling Narrow-band interference Radiated interference EN 61000-4-3 (ENV 50140) IEC 801-3 3 V/m, 10 V/m 80 … 1000 MHz High-frequency interference fields Electrostatic discharge (ESD) EN 61000-4-2 IEC 61000-4-2 Up to 8 kV 5 / 50 ns Electrostatic discharge Voltage dips, short interruptions and variations EN 61000-4-11 IEC 61000-4-11 0,4 VR 1 … 50 ms 0,7 VR optional VR = 0 10 ms Electrostatic discharge Cp: Parasitic capacitance R: Resistance Common-mode interference current Differential-mode interference current Interference source Disturbed equipment General Technical Information |
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