NXP Semiconductors
BCP69
20 V, 1 A PNP medium power transistor
102
Rth(j-a)
(K/W)
10
duty cycle = 1
0.5
0.2
0.05
0.75
0.33
0.1
0.02
0.01
1
0
006aab402
P
t1
δ=
t2
10−1
10−5
10−4
10−3
10−2
10−1
1
t1
t
t2
10
102
103
tp (s)
FR4 PCB, mounting pad for collector 6 cm2
Fig 2. Transient thermal impedance from junction to ambient as a function of pulse duration; typical values
BCP69_6
Product data sheet
Rev. 06 — 2 December 2008
© NXP B.V. 2008. All rights reserved.
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