Diodes FZT489 - Manual (Page 3)

FZT489
Document Number DS33134 Rev. 4 - 2
3 of 7
www.diodes.com
October 2012
© Diodes Incorporated
A Product Line of
Diodes Incorporated
FZT489
Thermal Characteristics and Derating Characteristics
100µ 1m 10m 100m 1 10 100 1k
0
10
20
30
40
50
60
70
0 20 40 60 80 100 120 140 160
0.0
0.5
1.0
1.5
2.0
2.5
3.0
50mm x 50mm
2oz FR4
25mm x 25mm
2oz FR4
Derating Curve
Temperature (°C) M
a
x
P
o
wer
Di
s
s
ipat
ion (W)
100µ 1m 10m 100m 1 10 100 1k
0
10
20
30
40
50
T
amb
=25°C
25mm x 25mm
2oz FR4
Transient Thermal Impedance
D=0.5
D=0.2
D=0.1
Single Pulse
D=0.05
T
herm
a
l Res
is
tance (°
C/
W)
Pulse Width (s)
100µ 1m 10m 100m 1 10 100 1k
1
10
100
25mm x 25mm
2oz FR4
50mm x 50mm
2oz FR4
Single Pulse
T
amb
=25°C
Pulse Power Dissipation
Pulse Width (s) M
a
x
P
o
wer
Di
s
s
ipat
ion (W)
D=0.1
D=0.05
Single Pulse
D=0.2
D=0.5
T
amb
=25°C
50mm x 50mm
2oz FR4
Transient Thermal Impedance
Pulse Width (s) T
her
m
al
R
esis
tanc
e (°
C/
W)