Page 1
Tj
Forward current =
ANSALDO
查询ARF340供应商
Ansaldo Trasporti s.p.a.
Unita' Semiconduttori
FAST RECOVERY DIODE ARF340
Repetitive voltage up to 2600 V
Mean forward current 775 A
Surge current 6.4 kA
FINAL SPECIFICATION
lug 98 - ISSUE : 01
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 -
Symbol Characteristic Conditions
[°C]
Value Unit
BLOCKING
V RRM Repetitive peak reverse voltage 150 2600 V
V RSM Non-repetitive peak reverse voltage 150 2700 V
I RRM Repetitive peak reverse current V=VRRM 150 50 mA
CONDUCTING
I F (AV) Mean forward current 180° sin ,50 Hz, Th=55°C, double side cooled 775 A
I F (AV) Mean forward current 180° square,50 Hz,Th=55°C,double side cooled 780 A
I FSM Surge forward current Sine wave, 10 ms 150 6,4 kA
I² t I² t
V FM Forward voltage
V F(TO) Threshold voltage 150 1,15 V
r F Forward slope resistance 150 0,685 mohm
reapplied reverse voltage up to 50% VRSM
205 x1E3 A²s
1200 A 25 2,3 V
SWITCHING
t rr Reverse recovery time I F = 350 A 4 µs
Q rr Reverse recovery charge
I rr Peak reverse recovery current
s Softness (s-factor), min 0,4
V FR Peak forward recovery di/dt= 400 A/µs 150 20 V
di/dt= 80 A/µs
VR = 100 V
150 260 µC
140 A
MOUNTING
R th(j-h) Thermal impedance Junction to heatsink, double side cooled 50 °C/kW
T j Operating junction temperature -30 / 150 °C
F Mounting force 8.0 / 9.0 kN
Mass 85 g
ORDERING INFORMATION : ARF340 S 26
standard specification
VRRM/100
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ARF340 FAST RECOVERY DIODE
FORWARD CHARACTERISTIC
SURGE CHARACTERISTIC
ANSALDO
FINAL SPECIFICATION lug 98 - ISSUE : 01
Tj = 150 °C
2500
2000
1500
1000
Forward Current [A]
500
0
1 1,5 2 2,5 3
Forward Voltage [V]
TRANSIENT THERMAL IMPEDANCE
DOUBLE SIDE COOLED
Tj = 150 °C
7
6
5
4
3
ITSM [kA]
2
1
0
1 10 100
n° cycles
60,0
50,0
40,0
30,0
Zth j-h [°C/kW]
20,0
10,0
0,0
0,001 0,01 0,1 1 10 100
t[s]
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.
Distributed by
Page 3
ARF340 FAST RECOVERY DIODE
ANSALDO
FINAL SPECIFICATION lug 98 - ISSUE : 01
DISSIPATION CHARACTERISTICS
2000
1800
1600
1400
1200
1000
800
600
Power Dissipation [W]
60°
30°
SQUARE WAVE
120°
90°
DC
180°
400
200
0
0 200 400 600 800 1000 1200
Mean Forward Current [A]
SINE WAVE
2000
1800
180°
1600
120°
90°
1400
60°
1200
30°
1000
800
600
Power Dissipation [W]
400
200
0
0 200 400 600 800 1000 1200
Mean Forward Current [A]
Page 4
ARF340 FAST RECOVERY DIODE
ANSALDO
Qrr [µC]
Irr [A]
500 A
VFR [V]
ta
Energy dissipation during recovery Er = Vr (Qrr - Irr ta /
tb
FINAL SPECIFICATION lug 98 - ISSUE : 01
SWITCHING CHARACTERISTICS
FORWARD RECOVERY VOLTAGE
40
35
30
25
20
15
10
5
0
0 200 400 600 800 1000 1200
REVERSE RECOVERY CHARGE
1000
900
800
700
600
500
400
300
200
100
0
0 100 200 300 400
Tj = 150 °C
Tj = 25 °C
di/dt [A/µs]
Tj = 150 °C
250 A
di/dt [A/µs]
1000 A
500 A
VF
REVERSE RECOVERY CURRENT
Tj = 150 °C
600
550
500
450
400
350
300
250
200
150
100
50
0
0 100 200 300 400
di/dt [A/µs]
1000
250 A
ta = Irr / (di/dt) tb = trr - ta
Softness (s factor) s = tb / ta
IF
d i/d t
Irr
Vr
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