BU4507 Philips Semiconductors, BU4507 Datasheet - Page 5

• Manufacturer Part Number: BU4507
• Description: Silicon Diffused Power Transistor
• Manufacturer: Philips Semiconductors

Philips Semiconductors
August 1998
Silicon Diffused Power Transistor
120
110
100
90
80
70
60
50
40
30
20
10
0
Fig.13. Normalised power dissipation.
0
PD%
20
PD% = 100 P
40
60
Ths / C
80
Normalised Power Derating
D
/P
with heatsink compound
D 25˚C
100
120
140
5
0.001
0.01
0.1
10
1.0E-07
1
Fig.14. Transient thermal impedance.
Zth K/W
0.05
0.02
0.5
0.2
0.1
0
1.0E-05
1.0E-03
t / s
P
D
t
p
Product specification
T
1.0E-01
D =
BU4507AF
BU4507AF
t
T
p
t
Rev 1.100
1.0E+01