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PHP14NQ20T

TrenchMOS™ standard level FET

Philips Electronics 

Philips Semiconductors

PHP/PHB/PHD14NQ20T

TrenchMOS™ standard level FET

4. Thermal characteristics

Table 3: Thermal characteristics

Symbol Parameter

Rth(j-mb) thermal resistance from junction to mounting

base

Rth(j-a) thermal resistance from junction to ambient

Conditions

Figure 4

Min Typ

--

vertical in still air; SOT78 package

- 60

SOT404 and SOT428 packages;

- 50

SOT404 minimum footprint; mounted on

a PCB

Max Unit

1.2 K/W

- K/W

- K/W

4.1 Transient thermal impedance

10

Zth (j-mb)

(K/W)

003aaa220

1

10-1

δ = 0.5

δ = 0.2

δ = 0.1

δ = 0.05

δ = 0.02

single pulse

10-2

10-6

10-5

10-4

10-3

10-2

P

δ

=

tp

T

10-1

tp

t

T

1

10

tp (s)

Fig 4. Transient thermal impedance from junction to mounting base as a function of pulse duration.

9397 750 09535

Product data

Rev. 03 — 11 March 2002

© Koninklijke Philips Electronics N.V. 2002. All rights reserved.

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