FAST RECOVERY DIODE
ARF221
Repetitive voltage up to
1400
V
Mean forward current
415
A
Surge current
5
kA
FINAL SPECIFICATION
ott 97 - ISSUE : 02
Symbol
Characteristic
Conditions
Tj
[C]
Value
Unit
BLOCKING
V
RRM
Repetitive peak reverse voltage
125
1400
V
V
RSM
Non-repetitive peak reverse voltage
125
1500
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
415
A
I
F (AV)
Mean forward current
180 square,50 Hz,Th=55C,double side cooled
410
A
I
FSM
Surge forward current
Sine wave, 10 ms
125
4.5
kA
I t
I t
reapplied reverse voltage up to 50% VRSM
101 x1E3
As
V
FM
Forward voltage
Forward current = 600 A
125
1.47
V
V
F(TO)
Threshold voltage
125
1.05
V
r
F
Forward slope resistance
125
0.70
mohm
SWITCHING
t rr
Reverse recovery time
I F =
200 A
2.0
s
Q rr
Reverse recovery charge
di/dt =
40 A/s
125
50
C
I rr
Peak reverse recovery current
VR =
50 V
50
A
s
Softness (s-factor), min
V
FR
Peak forward recovery
V
MOUNTING
R
th(j-h)
Thermal impedance
Junction to heatsink, double side cooled
95
C/kW
T
j
Operating junction temperature
-30 / 125
C
F
Mounting force
4.5 / 5.0
kN
Mass
55
g
ORDERING INFORMATION : ARF221 S 14
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
ARF221 FAST RECOVERY DIODE
FINAL SPECIFICATION ott 97 - ISSUE : 02
DISSIPATION CHARACTERISTICS
SQUARE WAVE
DC
SINE WAVE
DC
DC
180
120
90
60
30
0
100
200
300
400
500
600
700
800
0
100
200
300
400
500
600
Mean Forward Current [A]
Power Dissipation [
W
]
ANSALDO
180
120
90
60
30
0
100
200
300
400
500
600
700
800
0
100
200
300
400
500
600
Mean Forward Current [A]
Power Dissipation [
W
]
ARF221 FAST RECOVERY DIODE
FINAL SPECIFICATION ott 97 - ISSUE : 02
SWITCHING CHARACTERISTICS
ANSALDO
REVERSE RECOVERY CHARGE
Tj = 125 C
0
20
40
60
80
100
120
140
160
0
100
200
300
400
di/dt [A/s]
Qrr [C]
250 A
500 A
REVERSE RECOVERY CURRENT
Tj = 125 C
0
50
100
150
200
250
0
100
200
300
400
di/dt [A/s]
Irr [A]
250 A
500 A
FORWARD RECOVERY VOLTAGE
0
5
10
15
20
25
30
35
40
0
200
400
600
800
1000
1200
di/dt [A/s]
VFR [V]
Tj = 125 C
Tj = 25 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
ARF221 FAST RECOVERY DIODE
FINAL SPECIFICATION ott 97 - ISSUE : 02
Distributed by
FORWARD CHARACTERISTIC
Tj = 125 C
0
200
400
600
800
1000
1200
1400
0.6
1.1
1.6
2.1
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
70.0
80.0
90.0
100.0
0.001
0.01
0.1
1
10
100
t[s]
Zth j-h [C/kW]
SURGE CHARACTERISTIC
Tj = 125 C
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
1
10
100
n cycles
ITSM [kA]
ANSALDO
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.
PDF 
ZIP