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STD70GK24 Scheda tecnica(PDF) 4 Page - Sirectifier Semiconductors |
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STD70GK24 Scheda tecnica(HTML) 4 Page - Sirectifier Semiconductors |
4 / 4 page Thyristor-Diode Modules Fig. 7 Three phase AC-controller: Power dissipation versus RMS output current and ambient temperature Fig. 8 Transient thermal impedance junction to case (per thyristor or diode) Fig. 9 Transient thermal impedance junction to heatsink (per thyristor or diode) R thJC for various conduction angles d: d R thJC (K/W) DC 0.3 180oC 0.31 120oC 0.33 60oC 0.35 30oC 0.37 Constants for Z thJC calculation: iR thi (K/W) t i (s) 1 0.008 0.0019 2 0.054 0.047 3 0.238 0.3 R thJK for various conduction angles d: d R thJK (K/W) DC 0.5 180oC 0.51 120oC 0.53 60oC 0.55 30oC 0.57 Constants for Z thJK calculation: iR thi (K/W) t i (s) 1 0.008 0.0019 2 0.054 0.047 3 0.238 0.3 4 0.2 1.25 3 x STD/SDT70 STD/SDT70 STD/SDT70 STD70GKXX P4 ©2008 SIRECTIFIER All rights reserved, Tel: +86-519-86800000 Fax: +86-519-88019019 E-mail: sales@sirectifier.com www.sirectifier.com |
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