Datasheet

BUK7E04-40A All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved.
Product data sheet Rev. 03 — 15 June 2010 5 of 14
NXP Semiconductors
BUK7E04-40A
N-channel TrenchMOS standard level FET
5. Thermal characteristics
Table 5. Thermal characteristics
Symbol Parameter Conditions Min Typ Max Unit
R
th(j-mb)
thermal resistance from junction
to mounting base
see Figure 4 --0.5K/W
R
th(j-a)
thermal resistance from junction
to ambient
vertical in still air - 60 - K/W
Fig 4. Transient thermal impedance from junction to mounting base as a function of pulse duration
03ne69
Single Shot
0.2
0.1
0.05
0.02
10
−3
10
−2
10
−1
1
10
−6
10
−5
10
−4
10
−3
10
−2
10
−1
1
t
p
(s)
Z
th(j-mb)
(K/W)
δ = 0.5
t
p
t
p
T
P
t
T
δ =