Page 1
Tj
-30 /
standard specification
ANSALDO
Ansaldo Trasporti s.p.a.
Unita' Semiconduttori
PHASE CONTROL THYRISTOR AT1228
Repetitive voltage up to 3200 V
Mean on-state current 1275 A
Surge current 20 kA
FINAL SPECIFICATION
feb 97 - ISSUE : 06
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 3200 V
V RSM Non-repetitive peak reverse voltage 125 3300 V
V DRM Repetitive peak off-state voltage 125 3200 V
I RRM Repetitive peak reverse current V=VRRM 125 100 mA
I DRM Repetitive peak off-state current V=VDRM 125 100 mA
CONDUCTING
I T (AV) Mean on-state current 180° sin, 50 Hz, Th=55°C, double side cooled 1275 A
I T (AV) Mean on-state current 180° sin, 50 Hz, Tc=85°C, double side cooled 1100 A
I TSM Surge on-state current sine wave, 10 ms 125 20 kA
I² t I² t without reverse voltage 2000 x1E3 A²s
V T On-state voltage On-state current = 2900 A 25 2.5 V
V T(TO) Threshold voltage 125 1.2 V
r T On-state slope resistance 125 0.450 mohm
SWITCHING
di/dt Critical rate of rise of on-state current, min. From 75% VDRM up to 1300A, gate 10V 5ohm 125 200 A/µs
dv/dt Critical rate of rise of off-state voltage, min. Linear ramp up to 70% of VDRM 125 1000 V/µs
td Gate controlled delay time, typical VD=100V, gate source 25V, 10 ohm , tr=.5 µs 25 1 µs
tq Circuit commutated turn-off time, typical dV/dt = 20 V/µs linear up to 75% VDRM 200 µs
Q rr Reverse recovery charge di/dt=-20 A/µs, I= 870 A 125 µC
I rr Peak reverse recovery current VR= 50 V A
I H Holding current, typical VD=5V, gate open circuit 25 300 mA
I L Latching current, typical VD=5V, tp=30µs 25 700 mA
GATE
V GT Gate trigger voltage VD=5V 25 3.5 V
I GT Gate trigger current VD=5V 25 300 mA
V GD Non-trigger gate voltage, min. VD=VDRM 125 0.25 V
V FGM Peak gate voltage (forward) 30 V
I FGM Peak gate current 10 A
V RGM Peak gate voltage (reverse) 5 V
P GM Peak gate power dissipation Pulse width 100 µs 150 W
P G Average gate power dissipation 2 W
MOUNTING
R th(j-h) Thermal impedance, DC Junction to heatsink, double side cooled 21 °C/kW
R th(c-h) Thermal impedance Case to heatsink, double side cooled 6 °C/kW
T j Operating junction temperature
F Mounting force 22.0 / 24.5 kN
Mass 520 g
ORDERING INFORMATION : AT1228 S 32
VDRM&VRRM/100
125 °C
Page 2
AT1228 PHASE CONTROL THYRISTOR
ANSALDO
FINAL SPECIFICATION feb 97 - ISSUE : 06
DISSIPATION CHARACTERISTICS
SQUARE WAVE
Th [°C]
130
120
110
100
90
80
70
60
50
PF(AV) [W]
3500
3000
2500
2000
30°
60°
90°
120°
180°
DC
0 500 1000 1500 2000
IF(AV) [A]
180°
120°
90°
60°
30°
DC
1500
1000
500
0
0 500 1000 1500 2000
IF(AV) [A]
Page 3
AT1228 PHASE CONTROL THYRISTOR
ANSALDO
ANSALDO
FINAL SPECIFICATION feb 97 - ISSUE : 06
DISSIPATION CHARACTERISTICS
SINE WAVE
Th [°C]
130
120
110
100
90
30°
80
70
60
50
0 500 1000 1500 2000
60°
90°
120°
180°
PF(AV) [W]
3500
3000
2500
2000
1500
1000
500
0
IF(AV) [A]
180°
120°
90°
30°
60°
0 500 1000 1500 2000
IF(AV) [A]
Page 4
AT1228 PHASE CONTROL THYRISTOR
ON-STATE CHARACTERISTIC
On-state Current [A]
Zth j-h [°C/kW]
SURGE CHARACTERISTIC
ITSM [kA]
ANSALDO
FINAL SPECIFICATION feb 97 - ISSUE : 06
Tj = 125 °C
4000
3500
3000
2500
2000
1500
1000
500
0
0.6 1.1 1.6 2.1 2.6
On-state Voltage [V]
Tj = 125 °C
20
18
16
14
12
10
8
6
4
2
0
1 10 100
n° cycles
TRANSIENT THERMAL IMPEDANCE
DOUBLE SIDE COOLED
25.0
20.0
15.0
10.0
5.0
0.0
0.001 0.01 0.1 1 10 100
t[s]
Cathode terminal type DIN 46244 - A 4.8 - 0.8
Gate terminal type AMP 60598 - 1
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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