MSS50 ST Microelectronics, MSS50 Datasheet - Page 3

• Manufacturer Part Number: MSS50
• Description: (MSS40 / MSS50) BACK TO BACK SCR MODULE
• Manufacturer: ST Microelectronics

OTHER INFORMATION
Note: xxx = voltage
MSS40-xxx
MSS50-xxx
Fig. 1: Maximum power dissipation versus RMS
on-state current.
Fig. 3: Relative variation of thermal impedance
junction to case versus pulse duration.
1.0
0.5
0.2
0.1
100
1E-3
90
80
70
60
50
40
30
20
10
0
K = [Zth(j-c)/Rth(j-c)]
Part Number
0
P(W)
= 180°
10
1E-2
20
30
MSS40-xxx
MSS50-xxx
IT(RMS)(A)
tp(s)
1E-1
40
MSS40
Marking
50
1E+0
60
MSS50
70
180°
1E+1
80
Weight
27.0 g
27.0 g
Fig. 2: RMS on-state current versus case
temperature.
Fig. 4: Relative variation of gate trigger current,
holding current and latching current versus
junction temperature (typical values).
80
70
60
50
40
30
20
10
2.5
2.0
1.5
1.0
0.5
0.0
0
-40 -20
0
IT(RMS)(A)
IGT,IH,IL [Tj] / IGT ,IH,IL [Tj = 25 °C]
IH & IL
IGT
25
Base Quantity
0
MSS40
MSS50
20
50
10
10
40
Tcase(°C)
Tj(°C)
75
60
MSS40 / 50 Series
80
100
Packing mode
100 120 140 160
Tube
Tube
125
=180°
150
3/5