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MBRS140LT3 Fiches technique(PDF) 3 Page - Motorola, Inc |
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MBRS140LT3 Fiches technique(HTML) 3 Page - Motorola, Inc |
3 / 4 page MBRS140LT3 3 Rectifier Device Data Figure 7. Capacitance Figure 8. Typical Operating Temperature Derating* Figure 9. Thermal Response — Junction to Lead Figure 10. Thermal Response — Junction to Ambient 30 0 VR, REVERSE VOLTAGE (VOLTS) 1000 100 10 VR, DC REVERSE VOLTAGE (VOLTS) 25 40 0 105 85 75 65 15 5.0 10 20 25 35 40 30 35 5.0 10 20 15 95 115 125 * Reverse power dissipation and the possibility of thermal runaway must be considered when operating this device under any re- verse voltage conditions. Calculations of TJ therefore must include forward and reverse power effects. The allowable operating TJ may be calculated from the equation: TJ = TJmax – r(t)(Pf + Pr) where r(t) = thermal impedance under given conditions, Pf = forward power dissipation, and Pr = reverse power dissipation This graph displays the derated allowable TJ due to reverse bias under DC conditions only and is calculated as TJ = TJmax – r(t)Pr, where r(t) = Rthja. For other power applications further calculations must be performed. Rtja = 94°C/W 44 °C/W 63 °C/W 80 °C/W 24 °C/W TJ = 25°C 0.1 0.00001 t, TIME (s) 1.0E+00 1.0E–01 1.0E–02 1.0E–03 1.0E–04 0.0001 0.001 0.01 1.0 10 100 1000 50% 20% 10% 5.0% 2.0% 1.0% Rtjl(t) = Rtjl*r(t) 0.1 0.00001 t, TIME (s) 1.0E+00 1.0E–01 1.0E–02 1.0E–03 1.0E–04 0.0001 0.001 0.01 1.0 10 100 1000 50% 20% 10% 5.0% 2.0% 1.0% Rtjl(t) = Rtjl*r(t) |
Numéro de pièce similaire - MBRS140LT3 |
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Description similaire - MBRS140LT3 |
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