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PDTC143Z_SER

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Product data sheet

Rev. 8 — 5 December 2011

5 of 17

Nexperia

PDTC143Z series

NPN resistor-equipped transistors; R1 = 4.7 k

, R2 = 47 k

FR4 PCB, standard footprint

Fig 2.

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

PDTC143ZE (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

PDTC143ZM (SOT883); typical values

006aac781

10-5

10

10-2

10-4

102

10-1

tp (s)

10-3

103

1

102

10

103

Zth(j-a)

(K/W)

1

duty cycle = 1

0.75

0.5

0.33

0.2

0.1

0.05

0.02

0.01

0

006aac782

10-5

10

10-2

10-4

102

10-1

tp (s)

10-3

103

1

102

10

103

Zth(j-a)

(K/W)

1

duty cycle = 1

0.75

0.5

0.33

0.2

0.1

0.05

0.02

0.01

0