
Nexperia
BC807RA
45 V, 500 mA PNP/PNP general-purpose double transistors
BC807RA All information provided in this document is subject to legal disclaimers.
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Nexperia B.V. 2017. All rights reserved
Product data sheet 16 June 2017 4 / 11
9. Thermal characteristics
Table 6. Thermal characteristics
Symbol Parameter Conditions Min Typ Max Unit
Per transistor
R
th(j-a)
thermal resistance
from junction to
ambient
in free air [1] - - 358 K/W
Per device
R
th(j-a)
thermal resistance
from junction to
ambient
in free air [1] - - 250 K/W
[1] Device mounted on an FR4 PCB, single-sided copper, tin-plated and standard footprint.
aaa-025825
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
0.01
0
0.02
0.05
0.10
0.20
0.50
0.75
0.33
FR4 PCB, standard footprint
Fig. 2. Transient thermal impedance from junction to ambient as a function of pulse duration; typical values