Datasheet

PEMD48_PUMD48 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Product data sheet Rev. 6 — 24 January 2012 4 of 16
NXP Semiconductors
PEMD48; PUMD48
NPN/PNP resistor-equipped transistors
6. Thermal characteristics
SOT363 and SOT666; FR4 PCB, standard footprint
Fig 1. Per device: Power derating curve
T
amb
(°C)
-75 17512525 75-25
006aac749
200
100
300
400
P
tot
(mW)
0
FR4 PCB, standard footprint
Fig 2. Transient thermal impedance from junction to ambient as a function of pulse duration for
PEMD48 (SOT666); typical values
006aac751
10
-5
1010
-2
10
-4
10
2
10
-1
t
p
(s)
10
-3
10
3
1
10
2
10
10
3
Z
th(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