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| ANSALDO Ansaldo Trasporti s.p.a. Unita' Semiconduttori 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 - FAST RECOVERY DIODE ARF676 Repetitive voltage up to Mean forward current Surge current 4800 V 1515 A 18 kA FINAL SPECIFICATION feb 97 - ISSUE : 03 Symbol Characteristic Conditions Tj [C] Value Unit BLOCKING V RRM V RSM I RRM Repetitive peak reverse voltage Non-repetitive peak reverse voltage Repetitive peak reverse current V=VRRM 140 140 140 4800 4900 100 V V mA CONDUCTING I I I F (AV) Mean forward current Mean forward current Surge forward current I t Forward voltage Threshold voltage Forward slope resistance 180 sin ,50 Hz, Th=55C, double side cooled 180 square,50 Hz,Th=55C,double side cooled Sine wave, 10 ms reapplied reverse voltage up to 50% VRSM 140 1515 1535 18 1620 x1E3 A A kA As V V mohm F (AV) FSM I t V FM V F(TO) r F Forward current = 1570 A 25 140 140 2.4 1.25 0.500 SWITCHING t rr Q rr I rr s V FR Reverse recovery time Reverse recovery charge Peak reverse recovery current Softness (s-factor), min Peak forward recovery di/dt= 400 A/s 140 I F = 1000 A di/dt= VR = 250 A/s 100 V 800 0.5 40 V A 140 6 2000 s C MOUNTING R th(j-h) T F j Thermal impedance Operating junction temperature Mounting force Mass Junction to heatsink, double side cooled 18 -30 / 140 22.0 / 24.5 300 C/kW C kN g ORDERING INFORMATION : ARF676 S 48 standard specification VRRM/100 ARF676 FAST RECOVERY DIODE FINAL SPECIFICATION feb 97 - ISSUE : 03 ANSALDO DISSIPATION CHARACTERISTICS SQUARE WAVE 5000 4500 4000 Power Dissipation [W] 90 120 180 DC DC 3500 60 3000 30 2500 2000 1500 1000 500 0 0 500 1000 1500 2000 2500 Mean Forward Current [A] SINE WAVE 5000 4500 4000 Power Dissipation [W] 90 120 180 DC 3500 3000 2500 2000 1500 1000 500 0 0 500 30 60 1000 1500 2000 2500 Mean Forward Current [A] ARF676 FAST RECOVERY DIODE FINAL SPECIFICATION feb 97 - ISSUE : 03 ANSALDO SWITCHING CHARACTERISTICS FORWARD RECOVERY VOLTAGE 80 70 60 Tj = 140 C 50 VFR [V] 40 30 Tj = 25 C IF VFR 20 VF 10 0 0 200 400 600 di/dt [A/s] 800 1000 1200 REVERSE RECOVERY CHARGE Tj = 140 C 2500 1000 A REVERSE RECOVERY CURRENT Tj = 140 C 1000 1000 A 500 A 2000 500 A 800 250 A 1500 Qrr [C] 250 A 600 Irr [A] 400 200 0 0 100 200 di/dt [A/s] 300 400 0 100 200 di/dt [A/s] 300 400 1000 500 0 ta = Irr / (di/dt) tb = trr - ta 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 ARF676 FAST RECOVERY DIODE FINAL SPECIFICATION feb 97 - ISSUE : 03 ANSALDO FORWARD CHARACTERISTIC Tj = 140 C SURGE CHARACTERISTIC Tj = 140 C 18 5000 4500 4000 Forward Current [A] 3500 3000 2500 2000 1500 1000 500 0 0.6 1.6 2.6 3.6 Forward Voltage [V] 4 2 0 1 10 n cycles 100 ITSM [kA] 0.01 0.1 t[s] 1 10 100 16 14 12 10 8 6 TRANSIENT THERMAL IMPEDANCE DOUBLE SIDE COOLED 18.0 16.0 14.0 Zth j-h [C/kW] 12.0 10.0 8.0 6.0 4.0 2.0 0.0 0.001 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 |
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