NXP Semiconductors
PMXB43UNE
20 V, N-channel Trench MOSFET
103
Zth(j-a)
(K/W)
102
duty cycle = 1
0.75
0.5
0.33
0.25 0.2
0.1
0.05
0.02
10
0
0.01
aaa-008918
Fig. 5.
1
10-3
10-2
10-1
1
FR4 PCB, standard footprint
10
102
103
tp (s)
Transient thermal impedance from junction to ambient as a function of pulse duration; typical values
103
Zth(j-a)
(K/W)
duty cycle = 1
0.75
0.5
0.33
aaa-008919
102
10
0.25
0.02
0.2
0.01
0.1
0
0.05
Fig. 6.
1
10-3
10-2
10-1
1
FR4 PCB, mounting pad for drain 6 cm2
10
102
103
tp (s)
Transient thermal impedance from junction to ambient as a function of pulse duration; typical values
PMXB43UNE
Product data sheet
All information provided in this document is subject to legal disclaimers.
19 September 2013
© NXP N.V. 2013. All rights reserved
5 / 15