PDTC144E_SER

All information provided in this document is subject to legal disclaimers.

© NXP B.V. 2011. All rights reserved.

Product data sheet

Rev. 9 — 15 November 2011

5 of 17

NXP Semiconductors

PDTC144E series

NPN resistor-equipped transistors; R1 = 47 k

, R2 = 47 k

FR4 PCB, standard footprint

Fig 2.

Transient thermal impedance from junction to ambient as a function of pulse duration for

PDTC144EE (SOT416); typical values

FR4 PCB, 70

m copper strip line

Fig 3.

Transient thermal impedance from junction to ambient as a function of pulse duration for

PDTC144EM (SOT883); typical values

006aac781

10

1

10

(K/W)

1

duty cycle = 1

0.75

0.5

0.33

0.2

0.1

0.05

0.02

0.01

0

006aac782

10

1

10

(K/W)

1

duty cycle = 1

0.75

0.5

0.33

0.2

0.1

0.05

0.02

0.01

0