Datasheet

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