BUK7105-40ATE Datasheet, PDF (4/16 Pages) NXP Semiconductors – TrenchPLUS standard level FET

Philips Semiconductors
BUK71/7905-40ATE
TrenchPLUS standard level FET
4. Thermal characteristics
Table 3: Thermal characteristics
Symbol Parameter
Conditions
R_th(j-a)
thermal resistance from junction to ambient
SOT263B
vertical in still air
SOT426
mounted on printed circuit
board; minimum footprint
R_th(j-mb) thermal resistance from junction to mounting Figure 4
base
4.1 Transient thermal impedance
Min Typ Max Unit
-
60 -
K/W
-
50 -
K/W
-
-
0.55 K/W
1
Z _th(j-mb)
(K/W)
δ = 0.5
10-1
10-2
0.2
0.1
0.05
0.02
single shot
10-3
10-6
10-5
10-4
10-3
10-2
03ni64
P
δ
=
tp
T
10-1
tp
t
T
1
t_p(s) ¹⁰
Fig 4. Transient thermal impedance from junction to mounting base as a function of pulse duration.
9397 750 11694
Product data
Rev. 01 — 20 August 2003
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
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