POSEICO
POSEICO SPA
POwer SEmiconductors Italian COrporation
POSEICO SPA
Via N. Lorenzi 8, 16152 Genova - ITALY
Tel. +39 010 6556234 - Fax +39 010 6557519
Sales Office:
Tel. +39 010 6556775 - Fax +39 010 6442510
FAST RECOVERY DIODE
FOR IGBT, IEGT, GCT APPLICATIONS
SNUBBERLESS OPERATION
LOW LOSSES SOFT RECOVERY
ARF681
Repetitive voltage up to
Mean forward current
Surge current
4500
V
1145
A
25
kA
TARGET SPECIFICATION
mar 03 - ISSUE : 2
Symbol
Characteristic
Conditions
Tj
[°C]
Value
Unit
BLOCKING
V
V
I
V
RRM
RSM
RRM
DC LINK
Repetitive peak reverse voltage
Non-repetitive peak reverse voltage
Repetitive peak reverse current
Permanent DC voltage
V=VRRM
125
125
125
125
4500
4600
150
2800
V
V
mA
V
CONDUCTING
I
I
I
F (AV)
F (AV)
FSM
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
Forward current = =2000 A
125
1145
1185
25
3125 x1E3
125
125
125
3.55
1.95
0.800
A
A
kA
A²s
V
V
mohm
I² t
V
V
r
FM
F(TO)
F
SWITCHING
Q rr
I rr
t rr
Q rr
I rr
s
E
V
OFF
FR
Reverse recovery charge
Peak reverse recovery current
Reverse recovery time
Reverse recovery charge
Peak reverse recovery current
Softness (s-factor), min
Turn off energy dissipation
Peak forward recovery
IF=
VR =
IF=
di/dt=
VR =
1000 A
100 V
2100 A
1000 A/µs
1800 V
di/dt=
250 A/µs
125
125
1500
730
µC
A
µs
2200
125
1150
µC
A
J
di/dt=
400 A/µs
125
V
MOUNTING
R
th(j-h)
R
th(c-h)
T
F
j
Thermal impedance
Thermal impedance
Operating junction temperature
Mounting force
Mass
Junction to heatsink, double side cooled
Case to heatsink, double side cooled
14.0
6.0
-30 / 125
35.0 / 40.0
850
°C/kW
°C/kW
°C
kN
g
ORDERING INFORMATION : ARF681 S 45
standard specification
VRRM/100
ARF681 FAST RECOVERY DIODE
TARGET SPECIFICATION
mar 03 - ISSUE : 2
POSEICO
POSEICO SPA
POwer SEmiconductors Italian COrporation
FORWARD CHARACTERISTIC
Tj = 125 °C
3500
3000
2500
20
ITSM [kA]
2000
1500
1000
500
0
1.2
2.2
3.2
4.2
Forward Voltage [V]
30
25
SURGE CHARACTERISTIC
Tj = 125 °C
Forward Current [A]
15
10
5
0
1
10
n° cycles
100
TRANSIENT THERMAL IMPEDANCE
DOUBLE SIDE COOLED
16.0
14.0
12.0
Zth j-h [°C/kW]
10.0
8.0
6.0
4.0
2.0
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 uniform
clamping force, cleaned and lubricated heatsink, surfaces with flatness < .03 mm and
roughness < 2 µm.
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.
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