Derating curve, Transient thermal impedance, Pulse power dissipation – Diodes FZT591 User Manual
Page 3: Fzt591, Thermal characteristics and derating information
FZT591
Document number: DS33142 Rev. 4 - 2
3 of 7
December 2012
© Diodes Incorporated
FZT591
A Product Line of
Diodes Incorporated
Thermal Characteristics and Derating Information
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
ax
P
o
wer
Di
ss
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
ax
P
o
wer
Di
ss
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
a
l R
e
sis
tanc
e (°
C/
W)