Fcx493a, Thermal characteristics and derating information, Safe operating area – Diodes FCX493A User Manual
Page 3: Derating curve, Transient thermal impedance, Pulse power dissipation
FCX493A
Document number: DS36573 Rev. 1 - 2
3 of 7
December 2013
© Diodes Incorporated
FCX493A
A Product Line of
Diodes Incorporated
Thermal Characteristics and Derating Information
100m
1
10
10m
100m
1
Single Pulse. T
amb
=25°C
V
CE(sat)
Limited
100µs
1ms
10ms
100ms
1s
DC
Safe Operating Area
I
C
Co
lle
ct
o
r Cu
rre
n
t (A
)
V
CE
Collector-Emitter Voltage (V)
0
20
40
60
80 100 120 140 160
0.0
0.2
0.4
0.6
0.8
1.0
Derating Curve
Temperature (°C)
M
a
x P
o
w
e
r
D
is
si
pat
ion (W)
100µ
1m
10m 100m
1
10
100
1k
0
20
40
60
80
100
120
Transient Thermal Impedance
D=0.5
D=0.2
D=0.1
Single Pulse
D=0.05
Ther
m
a
l Res
is
tanc
e (
°C
/W)
Pulse Width (s)
100µ
1m
10m 100m
1
10
100
1k
1
10
100
Single Pulse. T
amb
=25°C
Pulse Power Dissipation
Pulse Width (s)
M
a
x P
o
wer
Di
ss
ipat
ion (
W
)
0
500
1000
1500
2000
2500
0
1
2
3
0
500
1000
1500
2000
2500
40.0
60.0
80.0
100.0
120.0
140.0
2oz copper
1oz copper
T
amb
=25°C
Copper Area (sqmm)
Ma
xi
mu
m Po
w
e
r (
W
)
2oz copper
1oz copper
T
amb
=25°C
Copper Area (sqmm)
T
he
rm
al
Re
si
st
an
ce
(
°C/
W
)