PHB33NQ20T 查看數據表（PDF） - Philips Electronics

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PHB33NQ20T

N-channel TrenchMOS™ standard level FET

Philips Electronics 

Philips Semiconductors

PHP/PHB33NQ20T

N-channel TrenchMOS™ standard level FET

5. Thermal characteristics

Table 4: Thermal characteristics

Symbol Parameter

Conditions

Rth(j-mb)

Rth(j-a)

thermal resistance from junction to mounting base Figure 4

thermal resistance from junction to ambient

SOT78

vertical in free air

SOT404

mounted on a printed-circuit

board; minimum footprint;

vertical in still air

5.1 Transient thermal impedance

Min Typ Max Unit

-

-

0.65 K/W

-

60 -

K/W

-

50 -

K/W

10

Zth(j-mb)

(K/W)

1

δ = 0.5

10-1

0.2

0.1

0.05

0.02

10-2

single pulse

03ao09

P

δ = tp

T

10-3

10-5

10-4

10-3

10-2

tp

t

T

10-1

1

tp (s)

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

9397 750 14003

Product data sheet

Rev. 01 — 8 November 2004

© Koninklijke Philips Electronics N.V. 2004. All rights reserved.

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