Diodes FMMT459Q - Manual (Page 3)

FMMT459Q
Document number: DS37019 Rev. 1 - 2
3 of 7
www.diodes.com
March 2014
© Diodes Incorporated
FMMT459Q
A Product Line of
Diodes Incorporated
Thermal Characteristics and Derating Information
100m 1 10 100
1m
10m
100m
1
100µ 1m 10m 100m 1 10 100 1k
1
10
100
Single Pulse T
amb
=25°C
100µs
1ms
10ms
100ms
1s
DC
Safe Operating Area
I C
Co
lle
ct
o
r C
u
rre
nt
(A
)
V
CE
Collector-Emitter Voltage (V)
0 20 40 60 80 100 120 140 160
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
we
r Di
ssi
pat
io
n (W
)
100µ 1m 10m 100m 1 10 100 1k
0
50
100
150
200
Pulse Power Dissipation Transient Thermal Impedance
D=0.5
D=0.2
D=0.1
Single Pulse
D=0.05
T
her
m
a
l Resi
st
anc
e (°
C/
W)
Pulse Width (s)
Ma
xi
mu
m Po
w
e
r (
W
)
Pulse Width (s)
Single Pulse
T
amb
=25°C