20TQ... Series
2
Bulletin PD-20241 rev. B 12/01
www.irf.com
VFM Max. Forward Voltage Drop (1) 0.57 V @ 20A
* See Fig. 1 0.73 V @ 40A
0.51 V @ 20A
0.67 V @ 40A
IRM Max. Reverse Leakage Current (1) 2.7 mA TJ = 25 °C
* See Fig. 2 105 mA TJ = 125 °C
CTMax. Junction Capacitance 1400 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25 °C
LSTypical Series Inductance 8.0 nH Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change 10000 V/ µs
(Rated VR)
TJ = 25 °C
TJ = 125 °C
VR = rated VR
Electrical Specifications
Parameters 20TQ Units Conditions
(1) Pulse Width < 300µs, Duty Cycle < 2%
TJMax. Junction Temperature Range -55 to 150 °C
Tstg Max. Storage Temperature Range -55 to 150 °C
RthJC Max. Thermal Resistance Junction 1.50 °C/W DC operation * See Fig. 4
to Case
RthCS Typical Thermal Resistance, Case to 0.50 °C/W Mounting surface , smooth and greased
Heatsink
wt Approximate Weight 2 (0.07) g (oz.)
T Mounting Torque Min. 6 (5)
Max. 12 (10)
Thermal-Mechanical Specifications
Parameters 20TQ Units Conditions
IF(AV) Max. Average Forward Current 20 A 50% duty cycle @ TC = 116° C, rectangular wave form
* See Fig. 5
IFSM Max. Peak One Cycle Non-Repetitive 1800 5µs Sine or 3µs Rect. pulse
Surge Current * See Fig. 7 400 10ms Sine or 6ms Rect. pulse
EAS Non-Repetitive Avalanche Energy 27 mJ TJ
= 25 °C, IAS
= 4 Amps, L = 3.4 mH
IAR Repetitive Avalanche Current 4 A Current decaying linearly to zero in 1 µsec
Frequency limited by TJ max. VA = 1.5 x VR typical
Parameters 20TQ Units Conditions
Absolute Maximum Ratings
A
Following any rated
load condition and
with rated VRRM applied
Kg-cm
(Ibf-in)
Voltage Ratings
Part number 20TQ035 20TQ040 20TQ045
VRMax. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V) 35 40 45