Datasheet

PDTC123J_SER All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 7 — 21 December 2011 5 of 17
NXP Semiconductors
PDTC123J series
NPN resistor-equipped transistors; R1 = 2.2 k, R2 = 47 k
FR4 PCB, standard footprint
Fig 2. Transient thermal impedance from junction to ambient as a function of pulse duration for
PDTC123JE (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
PDTC123JM (SOT883); typical values
006aac781
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
006aac782
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