WeEn Semiconductors
BT131-600
4Q Triac
BT131-600 All information provided in this document is subject to legal disclaimers.
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WeEn Semiconductors Co., Ltd. 2016. All rights reserved
Product data sheet 4 October 2016 6 / 13
8. Thermal characteristics
Table 5. Thermal characteristics
Symbol Parameter Conditions Min Typ Max Unit
full cycle; Fig. 6 - - 60 K/WR
th(j-lead)
thermal resistance
from junction to lead
half cycle; Fig. 6 - - 80 K/W
R
th(j-a)
thermal resistance
from junction to
ambient free air
printed circuit board mounted: lead
length = 4 mm
- 150 - K/W
003aab045
1
10
- 1
10
10
2
Z
th(j-lead)
(K/W)
10
- 2
t
p
(s)
10
- 5
1 1010
- 1
10
- 2
10
- 4
10
- 3
t
p
P
t
(1)
(2)
(1) Unidirectional (half cycle)
(2) Bidirectional (full cycle)
Fig. 6. Transient thermal impedance from junction to lead as a function of pulse width