Thermal characteristics, Safe operating area, Derating curve – Diodes ZX5T1951G User Manual
Page 3: Transient thermal impedance, Pulse power dissipation
ZX5T1951G
Datasheet Number: DS35304 Rev. 4 - 2
3 of 7
April 2011
© Diodes Incorporated
A Product Line of
Diodes Incorporated
ZX5T1951G
Thermal Characteristics
100m
1
10
100
10m
100m
1
10
Single Pulse. T
amb
=25°C
52x52x1.6(mm) borad
V
CE(sat)
Limit
100µs
1ms
10ms
100ms
1s
DC
Safe Operating Area
-I
C
Co
lle
ct
o
r Current
(A
)
-V
CE
Collector-Emitter Voltage (V)
0
20
40
60
80
100 120 140 160
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Mounted on 25x25x1.6(mm)
FR4 PCB 2oz coppor
Mounted on 52x52x1.6(mm)
FR4 PCB 2oz coppor
Derating Curve
Temperature (°C)
M
a
x P
o
we
r Di
ssi
p
a
ti
o
n
(W
)
100µ
1m
10m 100m
1
10
100
1k
0
10
20
30
40
Mounted on 52x52x1.6(mm)
FR4 PCB 2oz coppor
)
Transient Thermal Impedance
D=0.5
D=0.2
D=0.1
Single Pulse
D=0.05
T
h
e
rm
a
l Re
si
st
a
n
ce
(°
C/
W
)
Pulse Width (s)
100µ
1m
10m 100m
1
10
100
1k
1
10
100
Single Pulse. T
amb
=25°C
52x52x1.6(mm) borad
Pulse Power Dissipation
Pulse Width (s)
Ma
x
Po
w
e
r
D
is
s
ip
a
ti
o
n
(
W
)