DCR1277SD View Datasheet(PDF) - Dynex Semiconductor
Part Name
Description
Manufacturer
DCR1277SD Datasheet PDF : 9 Pages
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1.0
Conduction Effective thermal resistance
Junction to case ˚C/W
d.c.
Halfwave
3 phase 120˚
6 phase 60˚
Double side
0.020
0.022
0.024
0.027
Anode side
0.036
0.038
0.040
0.043
0.1
0.01
DCR1277SD
Anode side cooled
Double side cooled
0.001
0.001
0.01
0.1
1
10
Time - (s)
Fig.5 Maximum (limit) transient thermal impedance - junction to case
50
VR = 0
I2t = Î2 x t
VR = 50% VRRM
2
2.8
40
2.6
2.4
2.2
30
2.0
1.8
20
1.6
1.4
1.2
10
I2t
1.0
0.8
0
0.6
1
10 1
2 3 45
50
ms
Cycles at 50Hz
Duration
Fig.6 Surge (non-repetitive) on-state current vs time at Tcase 125˚C
7/9
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