FAST RECOVERY DIODE
ARF322
Repetitive voltage up to
1600
V
Mean forward current
740
A
Surge current
11
kA
FINAL SPECIFICATION
ott 97 - ISSUE : 04
Symbol
Characteristic
Conditions
Tj
[C]
Value
Unit
BLOCKING
V
RRM
Repetitive peak reverse voltage
125
1600
V
V
RSM
Non-repetitive peak reverse voltage
125
1700
V
I
RRM
Repetitive peak reverse current
V=VRRM
125
50
mA
CONDUCTING
I
F (AV)
Mean forward current
180 sin ,50 Hz, Th=55C, double side cooled
740
A
I
F (AV)
Mean forward current
180 square,50 Hz,Th=55C,double side cooled
740
A
I
FSM
Surge forward current
Sine wave, 10 ms
125
11
kA
I t
I t
reapplied reverse voltage up to 50% VRSM
605 x1E3
As
V
FM
Forward voltage
Forward current =1200 A
25
1.65
V
V
F(TO)
Threshold voltage
125
0.90
V
r
F
Forward slope resistance
125
0.500
mohm
SWITCHING
t rr
Reverse recovery time
I F = 1000 A
2.0
s
Q rr
Reverse recovery charge
di/dt=
60 A/s
125
60
C
I rr
Peak reverse recovery current
VR =
50 V
70
A
s
Softness (s-factor), min
0.5
V
FR
Peak forward recovery
di/dt=
100 A/s
4
V
MOUNTING
R
th(j-h)
Thermal impedance
Junction to heatsink, double side cooled
52
C/kW
T
j
Operating junction temperature
-30 / 125
C
F
Mounting force
8.4 / 9.4
kN
Mass
280
g
ORDERING INFORMATION : ARF322 S 16
standard specification
VRRM/100
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 -
ANSALDO
Ansaldo Trasporti s.p.a.
Unita' Semiconduttori
ARF322 FAST RECOVERY DIODE
FINAL SPECIFICATION ott 97 - ISSUE : 04
DISSIPATION CHARACTERISTICS
SQUARE WAVE
DC
SINE WAVE
DC
DC
180
120
90
60
30
0
200
400
600
800
1000
1200
1400
0
200
400
600
800
1000
Mean Forward Current [A]
Power Dissipation [
W
]
ANSALDO
180
120
90
60
30
0
200
400
600
800
1000
1200
1400
0
200
400
600
800
1000
Mean Forward Current [A]
Power Dissipation [
W
]
ARF322 FAST RECOVERY DIODE
FINAL SPECIFICATION ott 97 - ISSUE : 04
SWITCHING CHARACTERISTICS
ANSALDO
REVERSE RECOVERY CHARGE
Tj = 125 C
0
20
40
60
80
100
120
140
160
180
0
100
200
300
400
di/dt [A/s]
Qrr [C]
250 A
500 A
1000 A
REVERSE RECOVERY CURRENT
Tj = 125 C
0
50
100
150
200
250
0
100
200
300
400
di/dt [A/s]
Irr [A]
1000 A
500 A
250 A
FORWARD RECOVERY VOLTAGE
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10.00
0
50
100
150
200
250
300
350
di/dt [A/s]
VFR [V]
Tj = 125 C
I
F
V
FR
V
F
ta
ta = Irr / (di/dt) tb = trr - ta
Softness (s factor) s = tb / ta
Energy dissipation during recovery Er = Vr (Qrr - Irr ta / 2 )
Irr
Vr
tb
I
F
d i/d t
ARF322 FAST RECOVERY DIODE
FINAL SPECIFICATION ott 97 - ISSUE : 04
Distributed by
FORWARD CHARACTERISTIC
Tj = 125 C
0
500
1000
1500
2000
2500
0.6
1.1
1.6
2.1
2.6
Forward Voltage [V]
Forward Current [A]
TRANSIENT THERMAL IMPEDANCE
DOUBLE SIDE COOLED
0.0
10.0
20.0
30.0
40.0
50.0
60.0
0.001
0.01
0.1
1
10
100
t[s]
Zth j-h [C/kW]
SURGE CHARACTERISTIC
Tj = 125 C
0
2
4
6
8
10
12
1
10
100
n cycles
ITSM [kA]
All the characteristics given in this data sheet are guaranteed only with uniform
clamping force, cleaned and lubricated heatsink, surfaces with flatness < .03 mm
and roughness < 2 m.
In the interest of product improvement ANSALDO reserves the right to change
any data given in this data sheet at any time without previous notice.
If not stated otherwise the maximum value of ratings (simbols over shaded
background) and characteristics is reported.
ANSALDO
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