© Nexperia B.V. 2017. All rights reserved

BC54_55_56PAS_SER

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

Product data sheet

Rev. 1 — 11 November 2014

6 of 14

Nexperia

BC54PAS; BC55PAS; BC56PAS

45V/60V/80V, 1A NPN medium power transistors

FR4 PCB, 4-layer copper, tin-plated and standard footprint

Fig 3.

Transient thermal impedance from junction to ambient as a function of pulse duration; typical values

FR4 PCB, single-sided copper, tin-plated and mounting pad for collector 1 cm2

Fig 4.

Transient thermal impedance from junction to ambient as a function of pulse duration; typical values

006aac686

10

1

102

103

Zth(j-a)

(K/W)

10–1

10–5

10

10–2

10–4

102

10–1

tp (s)

10–3

103

1

0

duty cycle = 1

0.01

0.05

0.1

0.2

0.33

0.5

0.75

0.02

0.25

006aac684

10

1

102

103

Zth(j-a)

(K/W)

10–1

10–5

10

10–2

10–4

102

10–1

tp (s)

10–3

103

1

0

duty cycle = 1

0.01

0.05

0.1

0.2

0.33

0.5

0.75

0.02

0.25