Diodes FMMT634Q - Manual (Page 3)

FMMT634Q
Document number: DS37051 Rev. 1 - 2
3 of 7
www.diodes.com
March 2014
© Diodes Incorporated
A Product Line of
Diodes Incorporated
FMMT634Q
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
a
x P
o
wer Di
ss
ip
at
io
n (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
al
Resi
st
an
ce
(°
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)
Max
imum P
o
w
e
r (
W
)