PHP47NQ10T Datasheet, PDF (4/14 Pages) NXP Semiconductors – N-channel enhancement mode field-effect transistor

Philips Semiconductors
PHP47NQ10T; PHB47NQ10T
N-channel enhancement mode field-effect transistor
7. Thermal characteristics
Table 4: Thermal characteristics
Symbol Parameter
Conditions
R_th(j-mb)
thermal resistance from junction to mounting Figure 5
base
R_th(j-a)
R_th(j-a)
thermal resistance from junction to ambient
thermal resistance from junction to ambient
SOT78 package; vertical in still air.
SOT404 package; mounted on
printed circuit board; minimum
footprint.
7.1 Transient thermal impedance
Value Unit
0.9
K/W
60
K/W
50
K/W
1
Zth _(j-mb)
(K/W)
10-1
10-2
δ=
0.5
0.2
0.1
0.05
0.02
Single pulse
003aaa099
P
δ = ^tp
T
10-3
10-7
10-6
10-5
10-4
10-3
10-2
tp
t
T
10-1
1
10
tp (s)
Fig 5. Transient thermal impedance from junction to mounting base as a function of
pulse duration.
9397 750 08243
Product data
Rev. 01 — 16 May 2001
© Philips Electronics N.V. 2001. All rights reserved.
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