ANSALDO Ansaldo Trasporti s.p.a. Unita' Semiconduttori FAST RECOVERY DIODE Via N. Lorenzi 8 - I 16152 GENOVA - ITALY Tel. int. +39/(0)10 6556549 - (0)10 6556488 Fax Int. +39/(0)10 6442510 Tx 270318 ANSUSE I - ARF422 Repetitive voltage up to Mean forward current Surge current 1600 V 940 A 14 kA TARGET SPECIFICATION feb 97 - ISSUE : 02 Symbol Characteristic Tj [°C] Conditions Value Unit BLOCKING V RRM Repetitive peak reverse voltage 125 1600 V V RSM Non-repetitive peak reverse voltage 125 1700 V I Repetitive peak reverse current 125 50 mA RRM V=VRRM CONDUCTING I F (AV) Mean forward current 180° sin ,50 Hz, Th=55°C, double side cooled 940 A I F (AV) Mean forward current 180° square,50 Hz,Th=55°C,double side cooled 930 A I FSM Surge forward current Sine wave, 10 ms reapplied reverse voltage up to 50% VRSM 14 kA 125 I² t I² t V FM Forward voltage V F(TO) Threshold voltage 125 1.20 V r Forward slope resistance 125 0.350 mohm F 980 x1E3 Forward current =1200 A 125 1.57 A²s V SWITCHING t rr Reverse recovery time Q rr Reverse recovery charge I F = 1000 A di/dt= 60 A/µs VR = 50 V 125 3.5 µs 200 µC A I rr Peak reverse recovery current 120 s Softness (s-factor), min 0.5 V FR Peak forward recovery di/dt= 100 A/µs 125 5 V 37 °C/kW MOUNTING R th(j-h) Thermal impedance T Operating junction temperature -30 / 125 °C Mounting force 11.8 / 13.2 kN F j Junction to heatsink, double side cooled Mass 300 ORDERING INFORMATION : ARF422 S 16 standard specification VRRM/100 g ANSALDO ARF422 FAST RECOVERY DIODE TARGET SPECIFICATION feb 97 - ISSUE : 02 SURGE CHARACTERISTIC Tj = 125 °C 3000 14 2500 12 10 2000 ITSM [kA] Forward Current [A] FORWARD CHARACTERISTIC Tj = 125 °C 1500 8 6 1000 4 500 2 0 0 0.6 1.1 1.6 2.1 2.6 1 Forward Voltage [V] 10 n° cycles TRANSIENT THERMAL IMPEDANCE DOUBLE SIDE COOLED 40.0 35.0 Zth j-h [°C/kW] 30.0 25.0 20.0 15.0 10.0 5.0 0.0 0.001 0.01 0.1 1 10 100 t[s] Distributed by All the characteristics given in this data sheet are guaranteed only with clamping force, cleaned and lubricated heatsink, surfaces with flatness < and roughness < 2 µm. In the interest of product improvement ANSALDO reserves the right to any data given in this data sheet at any time without previous notice. If not stated otherwise the maximum value of ratings (simbols over background) and characteristics is reported. uniform .03 mm change shaded 100