BUK7105-40ATE_2

© NXP B.V. 2009. All rights reserved.

Product data sheet

Rev. 02 — 10 February 2009

5 of 15

NXP Semiconductors

BUK7105-40ATE

N-channel TrenchPLUS standard level FET

5.

Thermal characteristics

Table 5.

Thermal characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

thermal resistance from

junction to ambient

mounted on a printed-circuit board;

minimum footprint

-50

-

K/W

thermal resistance from

junction to mounting

base

see Figure 4

-

-

0.55

K/W

Fig 4.

Transient thermal impedance from junction to mounting base as a function of pulse duration

03ni64

10-3

10-2

10-1

1

10-6

10-5

10-4

10-3

10-2

10-1

1

10

tp(s)

Z th(j-mb)

(K/W)

tp

tp

T

P

t

T

δ = 0.5

0.1

0.05

0.02

single shot

0.2