POSEICO ARF678S45 Datasheet

Tj
Forward current =
ANSALDO
Ansaldo Trasporti s.p.a.
Unita' Semiconduttori
FAST RECOVERY DIODE ARF678
Repetitive voltage up to 4500 V Mean forward current 1690 A Surge current 27 kA
FINAL SPECIFICATION
apr 97 - ISSUE : 01
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 -
Symbol Characteristic Conditions
Value Unit
BLOCKING
V RRM Repetitive peak reverse voltage 150 4500 V V RSM Non-repetitive peak reverse voltage 150 4600 V
I RRM Repetitive peak reverse current V=VRRM 150 150 mA
CONDUCTING
I F (AV) Mean forward current 180° sin ,50 Hz, Th=55°C, double side cooled 1690 A
I F (AV) Mean forward current 180° square,50 Hz,Th=55°C,double side cooled 1735 A
I FSM Surge forward current Sine wave, 10 ms 150 27 kA I² t I² t V FM Forward voltage V F(TO) Threshold voltage 150 1.30 V
r F Forward slope resistance 150 0.650 mohm
reapplied reverse voltage up to 50% VRSM
2880 x1E3 A²s
2000 A 25 2.40 V
SWITCHING
t rr Reverse recovery time I F = 1000 A 4.2 µs
Q rr Reverse recovery charge
I rr Peak reverse recovery current s Softness (s-factor), min 0.5
V FR Peak forward recovery di/dt= 400 A/µs 150 40 V
di/dt= 250 A/µs
VR = 50 V
150 1350 µC
650 A
MOUNTING
R th(j-h) Thermal impedance Junction to heatsink, double side cooled 14.0 °C/kW
T j Operating junction temperature -30 / 150 °C
F Mounting force 35.0 / 40.0 kN
Mass 850 g
ORDERING INFORMATION : ARF678 S 45
standard specification
VRRM/100
ARF678 FAST RECOVERY DIODE
Power Dissipation [W]
ANSALDO
Power Dissipation [W]
FINAL SPECIFICATION apr 97 - ISSUE : 01
DISSIPATION CHARACTERISTICS
7000
SQUARE WAVE
DC
6000
90°
120°
180°
5000
60°
4000
30°
3000
2000
1000
0
0 500 1000 1500 2000 2500
Mean Forward Current [A]
SINE WAVE
7000
180°
6000
5000
60°
30°
90°
120°
4000
3000
2000
1000
0
0 500 1000 1500 2000 2500
Mean Forward Current [A]
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