NXP Semiconductors
5. Thermal characteristics
Table 4.
Symbol
Rth(j-lead)
Rth(j-a)
Thermal characteristics
Parameter
Conditions
thermal resistance from junction to
lead
thermal resistance from junction to printed-circuit board mounted;
ambient
lead length = 4 mm
BT169 series
Thyristor logic level
Min
Typ
Max Unit
-
-
60
K/W
-
150
-
K/W
102
Zth(j-lead)
(K/W)
10
001aab451
1
10−1
10−2
10−5
10−4
10−3
10−2
10−1
Fig 6. Transient thermal impedance as a function of pulse width.
P
δ = tp
T
tp
t
T
1
10
tp (s)
BT169_SER
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 30 September 2011
© NXP B.V. 2011. All rights reserved.
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