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 - ARF240 Repetitive voltage up to Mean forward current Surge current 2500 V 280 A 3 kA FINAL SPECIFICATION feb 97 - ISSUE : 04 Symbol Characteristic Tj [C] Conditions Value Unit BLOCKING V RRM Repetitive peak reverse voltage 150 2500 V V RSM Non-repetitive peak reverse voltage 150 2600 V I Repetitive peak reverse current 150 50 mA RRM V=VRRM CONDUCTING I F (AV) Mean forward current 180 sin ,50 Hz, Th=55C, double side cooled 280 A I F (AV) Mean forward current 180 square,50 Hz,Th=55C,double side cooled 285 A I FSM Surge forward current Sine wave, 10 ms reapplied reverse voltage up to 50% VRSM 3 kA I t I t V FM Forward voltage V F(TO) r F 150 45 x1E3 Forward current =1000 A As 25 4.8 V Threshold voltage 150 1.50 V Forward slope resistance 150 3.00 mohm 2.0 s 90 C A SWITCHING t rr Reverse recovery time Q rr Reverse recovery charge IF = di/dt = VR = 200 A 80 A/s 150 100 V I rr Peak reverse recovery current 90 s Softness (s-factor), min 0.4 V FR Peak forward recovery di/dt = 400 A/s 150 30 V 95 C/kW MOUNTING R th(j-h) Thermal impedance T Operating junction temperature -30 / 150 C Mounting force 4.5 / 5.0 kN F j Junction to heatsink, double side cooled Mass 55 ORDERING INFORMATION : ARF240 S 25 standard specification VRRM/100 g ANSALDO ARF240 FAST RECOVERY DIODE FINAL SPECIFICATION feb 97 - ISSUE : 04 DISSIPATION CHARACTERISTICS SQUARE WAVE 1200 Power Dissipation [W] 1000 DC 120 800 DC 180 90 60 30 600 400 200 0 0 50 100 150 200 250 300 350 400 350 400 Mean Forward Current [A] SINE WAVE 1000 180 900 DC 120 Power Dissipation [W] 800 90 60 700 30 600 500 400 300 200 100 0 0 50 100 150 200 250 Mean Forward Current [A] 300 ANSALDO ARF240 FAST RECOVERY DIODE FINAL SPECIFICATION feb 97 - ISSUE : 04 SWITCHING CHARACTERISTICS FORWARD RECOVERY VOLTAGE 60 50 Tj = 150 C VFR [V] 40 30 IF VFR 20 VF 10 0 0 200 400 600 800 1000 1200 di/dt [A/s] REVERSE RECOVERY CHARGE Tj = 150 C REVERSE RECOVERY CURRENT Tj = 150 C 180 300 250 A 250 A 160 250 140 200 100 Irr [A] Qrr [C] 120 80 60 150 100 40 50 20 0 0 0 100 200 300 400 0 100 di/dt [A/s] ta = Irr / (di/dt) tb = trr - ta 200 300 400 di/dt [A/s] IF d i/d t ta tb Softness (s factor) s = tb / ta Energy dissipation during recovery Er = Vr * (Qrr - Irr *ta / 2 ) Irr Vr ANSALDO ARF240 FAST RECOVERY DIODE FINAL SPECIFICATION feb 97 - ISSUE : 04 FORWARD CHARACTERISTIC Tj = 150 C SURGE CHARACTERISTIC Tj = 150 C 900 3 800 2.5 600 2 ITSM [kA] Forward Current [A] 700 500 400 300 1.5 1 200 0.5 100 0 0 0.6 1.6 2.6 3.6 4.6 1 Forward Voltage [V] 10 n cycles TRANSIENT THERMAL IMPEDANCE DOUBLE SIDE COOLED 100.0 90.0 80.0 Zth j-h [C/kW] 70.0 60.0 50.0 40.0 30.0 20.0 10.0 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 m. 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