WeEn Semiconductors
9. Thermal characteristics
Table 6. Thermal characteristics
Symbol Parameter
Rth(j-mb)
thermal resistance
from junction to
mounting base
Rth(j-a)
thermal resistance
from junction to
ambient
Conditions
full cycle; Fig 6
half cycle; Fig 6
in free air
BT139-600E
4Q Triac
Min Typ Max Unit
-
-
1.2
K/W
-
-
1.7
K/W
-
60
-
K/W
(1) Unidirectional (half cycle)
(2) Bidirectional (full cycle)
Fig. 6. Transient thermal impedance from junction to mounting base as a function of pulse width
BT139-600E
Product data sheet
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22 March 2018
© WeEn Semiconductors Co., Ltd. 2018. All rights reserved
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