Safe operating area, Derating curve, Transient thermal impedance – Diodes FMMT634 User Manual
Page 3: Pulse power dissipation, Co lle ct or cu rre nt (a ) v, Collector-emitter voltage (v), Temperature (°c) m ax p o wer di ss ip at ion (w), Therm a l res ist anc e (° c/ w) pulse width (s), Pulse width (s) ma xi mu m po w er ( w )
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FMMT634
Document number: DS33115 Rev. 3 - 2
3 of 7
March 2014
© Diodes Incorporated
A Product Line of
Diodes Incorporated
FMMT634
Thermal Characteristics and Derating information
100m
1
10
100
1m
10m
100m
1
10
Single Pulse
T
amb
=25°C
V
CE(sat)
Limited
100µs
1ms
10ms
100ms
1s
DC
Safe Operating Area
I
C
Co
lle
ct
or Cu
rre
nt
(A
)
V
CE
Collector-Emitter Voltage (V)
0
25
50
75
100
125
150
175
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Derating Curve
Temperature (°C)
M
ax
P
o
wer Di
ss
ip
at
ion (W)
100µ
1m
10m 100m
1
10
100
1k
0
20
40
60
80
100
120
140
160
180
200
220
T
amb
=25°C
Transient Thermal Impedance
D=0.5
D=0.2
D=0.1
Single Pulse
D=0.05
T
herm
a
l Res
ist
anc
e (°
C/
W)
Pulse Width (s)
100µ
1m
10m 100m
1
10
100
1k
0.1
1
10
100
Single Pulse
T
amb
=25°C
Pulse Power Dissipation
Pulse Width (s)
Ma
xi
mu
m Po
w
er
(
W
)
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