Datasheet

NXP Semiconductors
PBSS4240X
40 V, 2 A NPN low VCEsat (BISS) transistor
PBSS4240X All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved
Product data sheet 15 October 2012 4 / 12
006aac680
10
1
10
2
10
3
Z
th(j-a)
(K/W)
10
- 1
10
- 5
1010
- 2
10
- 4
10
2
10
- 1
t
p
(s)
10
- 3
10
3
1
0
duty cycle = 1
0.01
0.02
0.05
0.1
0.2
0.33
0.5
0.75
FR4 PCB, standard footprint
Fig. 2. Transient thermal impedance from junction to ambient as a function of pulse duration; typical values
006aac681
10
1
10
2
10
3
Z
th(j-a)
(K/W)
10
- 1
10
- 5
1010
- 2
10
- 4
10
2
10
- 1
t
p
(s)
10
- 3
10
3
1
0
duty cycle = 1
0.01
0.02
0.05
0.1
0.2
0.33
0.5
0.75
FR4 PCB, mounting pad for collector 1 cm
2
Fig. 3. Transient thermal impedance from junction to ambient as a function of pulse duration; typical values