20CTQ... Series
2
Bulletin PD-20056 rev. A 12/01
www.irf.com
T
J
T
stg
R
thJC
Max. Thermal Resistance Junction
to Case (Per Leg)
R
thJC
Max. Thermal Resistance Junction
to Case (Per Package)
R
thCS
Typical Thermal Resistance, Case
to Heatsink
wt
Approximate Weight
T
Mounting Torque
Max. Junction Temperature Range
-55 to 175
°C
Max. Storage Temperature Range
-55 to 175
°C
3.25
°C/W DC operation
* See Fig. 4
1.63
°C/W DC operation
0.50
°C/W Mounting surface , smooth and greased
2 (0.07)
6 (5)
12 (10)
g (oz.)
Kg-cm
(Ibf-in)
Min.
Max.
Thermal-Mechanical Specifications
V
FM
Max. Forward Voltage Drop
(Per Leg) * See Fig. 1
0.64
0.76
0.57
0.68
2
V
V
V
V
@ 10A
@ 20A
@ 10A
@ 20A
T
J
= 25 °C
T
J
= 125 °C
V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25°C
Measured lead to lead 5mm from package body
(1)
I
RM
Max. Reverse Leakage Current
mA
(Per Leg) * See Fig. 2
Max. Junction Capacitance (Per Leg)
Typical Series Inductance (Per Leg)
dv/dt Max. Voltage Rate of Change
(Rated V
R
)
(1)
15
900
8.0
10000
mA
pF
nH
V/ μs
C
T
L
S
T
J
= 25 °C
T
J
= 125 °C
Electrical Specifications
(1) Pulse Width < 300μs, Duty Cycle <2%
V
R
= rated V
R
Absolute Maximum Ratings
Following any rated
load condition and with
rated V
RRM
applied
Parameters
20CTQ
Units
Conditions
I
F(AV)
Max. Average Forward Current
* See Fig. 5
20
A
50% duty cycle @ T
C
= 145°C, rectangular wave form
I
FSM
Max. Peak One Cycle Non-Repetitive
1060
5μs Sine or 3μs Rect. pulse
Surge Current (Per Leg) * See Fig. 7
265
10ms Sine or 6ms Rect. pulse
E
AS
Non-Repetitive Avalanche Energy
(Per Leg)
13
mJ
T
J
= 25 °C, I
AS
= 2.0 Amps, L = 6.5 mH
I
AR
Repetitive Avalanche Current
(Per Leg)
2.0
A
Current decaying linearly to zero in 1 μsec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
A
Part number
20CTQ035
20CTQ040
20CTQ045
V
R
V
RWM
Max.
Working Peak Reverse Voltage (V)
Max.
DC Reverse Voltage (V)
Voltage Ratings
35
40
45
Parameters
20CTQ
Units
Conditions
Parameters
20CTQ
Units
Conditions