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
ARF240
Repetitive voltage up to
Mean forward current
Surge current
2500
V
280
A
3
kA
FINAL SPECIFICATION
feb 97 - ISSUE : 04
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
150
150
150
2500
2600
50
V
V
mA
CONDUCTING
I
I
I
F (AV)
Mean forward current
Mean forward current
Surge forward current
I² t
Forward voltage
Threshold voltage
Forward slope resistance
180° sin ,50 Hz, Th=55°C, double side cooled
180° square,50 Hz,Th=55°C,double side cooled
Sine wave, 10 ms
reapplied reverse voltage up to 50% VRSM
150
280
285
3
45 x1E3
A
A
kA
A²s
V
V
mohm
F (AV)
FSM
I² t
V
FM
V
F(TO)
r
F
Forward current =
1000 A
25
150
150
4.8
1.50
3.00
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/µs
150
IF =
di/dt =
VR =
200 A
80 A/µs
100 V
90
0.4
30
V
A
150
2.0
90
µs
µC
MOUNTING
R
th(j-h)
T
F
j
Thermal impedance
Operating junction temperature
Mounting force
Mass
Junction to heatsink, double side cooled
95
-30 / 150
4.5 / 5.0
55
°C/kW
°C
kN
g
ORDERING INFORMATION : ARF240 S 25
standard specification
VRRM/100
ARF240 FAST RECOVERY DIODE
FINAL SPECIFICATION
feb 97 - ISSUE : 04
ANSALDO
SWITCHING CHARACTERISTICS
FORWARD RECOVERY VOLTAGE
60
50
Tj = 150 °C
40
VFR [V]
30
I
F
20
V
FR
10
V
F
0
0
200
400
600
di/dt [A/µs]
800
1000
1200
REVERSE RECOVERY CHARGE
Tj = 150 °C
180
250 A
REVERSE RECOVERY CURRENT
Tj = 150 °C
300
250 A
160
250
140
120
Qrr [µC]
Irr [A]
0
100
200
di/dt [A/µs]
300
400
100
80
60
40
50
20
0
0
0
100
200
di/dt [A/µs]
300
400
200
150
100
ta = Irr / (di/dt)
tb = trr - ta
I
F
d i/d t
ta
tb
Softness (s factor) s = tb / ta
Energy dissipation during recovery Er = Vr · (Qrr - Irr ·ta / 2 )
Irr
Vr
ARF240 FAST RECOVERY DIODE
FINAL SPECIFICATION
feb 97 - ISSUE : 04
ANSALDO
FORWARD CHARACTERISTIC
Tj = 150 °C
SURGE CHARACTERISTIC
Tj = 150 °C
900
800
3
2.5
700
Forward Current [A]
600
500
400
300
200
0.5
100
0
0.6
1.6
2.6
Forward Voltage [V]
3.6
4.6
0
1
10
n° cycles
100
ITSM [kA]
TRANSIENT THERMAL IMPEDANCE
DOUBLE SIDE COOLED
0.0
0.001
0.01
0.1
t[s]
1
10
100
2
1.5
1
100.0
90.0
80.0
70.0
Zth j-h [°C/kW]
60.0
50.0
40.0
30.0
20.0
10.0
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
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