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PSKT250 Datasheet(PDF) 4 Page - Powersem GmbH |
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PSKT250 Datasheet(HTML) 4 Page - Powersem GmbH |
4 / 4 page 2002 POWERSEM reserves the right to change limits, test conditions and dimensions POWERSEM GmbH, Walpersdorfer Str. 53 D - 91126 Schwabach Phone: 09122 - 9764 - 0 FAX: 09122 - 9764 - 20 Fig. 7 Three phase AC-controller: Power dissipation versus RMS output current and ambient temperature 10-3 10-2 10-1 100 101 102 0.00 0.05 0.10 0.15 0.20 10-3 10-2 10-1 100 101 102 0.00 0.05 0.10 0.15 t s Z thJK K/W t s Z thJC K/W 30° DC 30° DC 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: dR thJC (K/W) DC 0.129 180°C 0.131 120°C 0.131 60°C 0.132 30°C 0.132 Constants for Z thJC calculation: iR thi (K/W) t i (s) 1 0.0035 0.099 2 0.0165 0.168 3 0.1091 0.456 R thJK for various conduction angles d: dR thJK (K/W) DC 0.169 180°C 0.171 120°C 0.172 60°C 0.172 30°C 0.173 Constants for Z thJK calculation: iR thi (K/W) t i (s) 1 0.0033 0.099 2 0.0159 0.168 3 0.1053 0.456 4 0.04 1.36 3xPSKT 250 or 3xPSKH 250 |
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