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
ARF221
Repetitive voltage up to
Mean forward current
Surge current
1400
V
415
A
5
kA
FINAL SPECIFICATION
ott 97 - ISSUE : 02
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
125
125
125
1400
1500
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
125
415
410
4.5
101 x1E3
A
A
kA
A²s
V
V
mohm
F (AV)
FSM
I² t
V
FM
V
F(TO)
r
F
Forward current = 600 A
125
125
125
1.47
1.05
0.70
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
V
IF =
di/dt =
VR =
200 A
40 A/µs
50 V
50
A
125
2.0
50
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 / 125
4.5 / 5.0
55
°C/kW
°C
kN
g
ORDERING INFORMATION : ARF221 S 14
standard specification
VRRM/100
ARF221 FAST RECOVERY DIODE
FINAL SPECIFICATION
ott 97 - ISSUE : 02
ANSALDO
SWITCHING CHARACTERISTICS
FORWARD RECOVERY VOLTAGE
40
35
Tj = 125 °C
30
25
VFR [V]
20
Tj = 25 °C
15
10
I
F
V
FR
V
F
5
0
0
200
400
600
di/dt [A/µs]
800
1000
1200
REVERSE RECOVERY CHARGE
Tj = 125 °C
REVERSE RECOVERY CURRENT
Tj = 125 °C
160
500 A
250
500 A
250 A
140
200
120
100
Qrr [µC]
80
60
40
50
20
0
0
100
200
di/dt [A/µs]
300
400
0
0
100
200
di/dt [A/µs]
300
Irr [A]
100
250 A
150
400
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
ARF221 FAST RECOVERY DIODE
FINAL SPECIFICATION
ott 97 - ISSUE : 02
ANSALDO
FORWARD CHARACTERISTIC
Tj = 125 °C
SURGE CHARACTERISTIC
Tj = 125 °C
1400
1200
1000
Forward Current [A]
4.5
4
3.5
3
ITSM [kA]
0.6
1.1
1.6
2.1
800
600
400
2.5
2
1.5
1
200
0.5
0
Forward Voltage [V]
0
1
10
n° cycles
100
TRANSIENT THERMAL IMPEDANCE
DOUBLE SIDE COOLED
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
0.0
0.001
0.01
0.1
t[s]
1
10
100
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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