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| PDTC143XT.215 Datasheet, PDF (6/17 Pages) NXP Semiconductors – NPN resistor-equipped transistors; R1 = 4.7 kΩ, R2 = 10 kΩ | |||
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NXP Semiconductors
PDTC143X series
NPN resistor-equipped transistors; R1 = 4.7 kï, R2 = 10 kï
103
Zth(j-a)
(K/W)
duty cycle = 1
0.75
0.5
0.33
102
0.2
0.1
0.05
0.02
10
0.01
0
006aac779
1
10-5
10-4
10-3
10-2
10-1
1
10
102
103
tp (s)
Fig 4.
FR4 PCB, standard footprint
Transient thermal impedance from junction to ambient as a function of pulse duration for
PDTC143XT (SOT23); typical values
103
Zth(j-a)
(K/W)
102
duty cycle = 1
0.75
0.5
0.33
0.2
0.1
0.05
0.02
10
0.01
006aac780
0
1
10-5
10-4
10-3
10-2
10-1
1
10
102
103
tp (s)
Fig 5.
FR4 PCB, standard footprint
Transient thermal impedance from junction to ambient as a function of pulse duration for
PDTC143XU (SOT323); typical values
PDTC143X_SER
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 11 â 9 December 2011
© NXP B.V. 2011. All rights reserved.
6 of 17
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