Page 1
Tj
Forward current =
ANSALDO
Ansaldo Trasporti s.p.a.
Unita' Semiconduttori
FAST RECOVERY DIODE ARF526
Repetitive voltage up to 1600 V
Mean forward current 1345 A
Surge current 20 kA
TARGET SPECIFICATION
feb 97 - ISSUE : 02
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 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=55°C, double side cooled 1345 A
I F (AV) Mean forward current 180° square,50 Hz,Th=55°C,double side cooled 1350 A
I FSM Surge forward current Sine wave, 10 ms 125 20 kA
I² t I² t
V FM Forward voltage
V F(TO) Threshold voltage 125 1.00 V
r F Forward slope resistance 125 0.300 mohm
reapplied reverse voltage up to 50% VRSM
2000 x1E3 A²s
2000 A 125 1.6 V
SWITCHING
t rr Reverse recovery time I F = 1000 A 3.5 µs
Q rr Reverse recovery charge
I rr Peak reverse recovery current
s Softness (s-factor), min 0.5
V FR Peak forward recovery di/dt= 100 A/µs 125 15 V
di/dt= 100 A/µs
VR = 50 V
125 250 µC
145 A
MOUNTING
R th(j-h) Thermal impedance Junction to heatsink, double side cooled 26 °C/kW
T j Operating junction temperature -30 / 125 °C
F Mounting force 18.0 / 20.0 kN
Mass 500 g
ORDERING INFORMATION : ARF526 S 16
standard specification
VRRM/100
Page 2
ARF526 FAST RECOVERY DIODE
Power Dissipation [W]
ANSALDO
Power Dissipation [W]
TARGET SPECIFICATION feb 97 - ISSUE : 02
DISSIPATION CHARACTERISTICS
3000
2500
2000
SQUARE WAVE
DC
DC
180°
120°
90°
1500
30°
60°
1000
500
0
0 200 400 600 800 1000 1200 1400 1600 1800
Mean Forward Current [A]
SINE WAVE
3000
2500
120°
DC
180°
2000
90°
1500
30°
60°
1000
500
0
0 500 1000 1500 2000
Mean Forward Current [A]
Page 3
ARF526 FAST RECOVERY DIODE
FORWARD CHARACTERISTIC
Forward Current [A]
Zth j-h [°C/kW]
SURGE CHARACTERISTIC
ITSM [kA]
ANSALDO
TARGET SPECIFICATION feb 97 - ISSUE : 02
Tj = 125 °C
4500
4000
3500
3000
2500
2000
1500
1000
500
0
0.6 1.1 1.6 2.1 2.6
Forward Voltage [V]
TRANSIENT THERMAL IMPEDANCE
DOUBLE SIDE COOLED
Tj = 125 °C
20
18
16
14
12
10
8
6
4
2
0
1 10 100
n° cycles
30.0
25.0
20.0
15.0
10.0
5.0
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.
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