Maximum ratings, Thermal characteristics, Thermal characteristics and derating information – Diodes 2DC4672 User Manual
Page 2: Derating curve, Transient thermal impedance, Pulse power dissipation

2DC4672
Document number: DS31636 Rev. 4 - 2
2 of 6
February 2013
© Diodes Incorporated
2DC4672
A Product Line of
Diodes Incorporated
Maximum Ratings
(@T
A
= +25°C, unless otherwise specified.)
Characteristic Symbol
Value
Unit
Collector-Base Voltage
V
CBO
60 V
Collector-Emitter Voltage
V
CEO
50 V
Emitter-Base Voltage
V
EBO
7 V
Continuous Collector Current
I
C
3 A
Peak Pulse Current
I
CM
6 A
Base Current
I
B
500 mA
Thermal Characteristics
(@T
A
= +25°C, unless otherwise specified.)
Characteristic Symbol
Value
Unit
Power Dissipation
(Note 5)
P
D
1
W
(Note 6)
2
Thermal Resistance, Junction to Ambient Air
(Note 5)
R
θJA
125
°C/W
(Note 6)
62.5
Thermal Resistance, Junction to Leads
(Note 7)
R
θJL
5.73 °C/W
Operating and Storage Temperature Range
T
J,
T
STG
-55 to +150
°C
Notes:
5. For a device surface mounted on 15mm x 15mm x 0.6mm FR4 PCB with high coverage of single sided 1 oz copper, in still air conditions; the device is
measured when operating in steady state condition.
6. Same as note (5), except the device is mounted on 40mm x 40mm x 1.6mm FR4 PCB
7. Thermal resistance from junction to solder-point (on the exposed collector pad).
Thermal Characteristics and Derating Information
0
25
50
75
100
125
150
0.0
0.2
0.4
0.6
0.8
1.0
Derating Curve
Temperature (°C)
M
a
x
P
o
w
e
r Di
ssi
p
a
ti
o
n
(
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
T
h
e
rm
a
l R
e
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
Pulse Power Dissipation
Pulse Width (s)
M
a
x
P
ower Di
s
s
ip
at
ion (W
)