20FQ Datasheet, PDF (2/4 Pages) International Rectifier – SCHOTTKY RECTIFIER

20FQ... Series
PD-2.033 rev. E 12/97
Voltage Ratings
Part number
V_R Max. DC Reverse Voltage (V)
V_RWM Max. Working Peak Reverse Voltage (V)
20FQ035
35
20FQ040
40
20FQ045
45
Absolute Maximum Ratings
Parameters
I_F(AV) Max.AverageForwardCurrent
* See Fig. 5
I_FSM Max.PeakOneCycleNon-Repetitive
Surge Current * See Fig. 7
E_AS Non-RepetitiveAvalancheEnergy
I_AR RepetitiveAvalancheCurrent
20FQ Units
Conditions
30
A 50%dutycycle@T_C =111°C,rectangularwaveform
7800
800
40
6
5µs Sine or 3µs Rect. pulse ^{Following any rated}
A
load condition and
10ms Sine or 6ms Rect. pulse with rated V_RRMapplied
mJ T_J = 25 °C, I_AS= 6 Amps, L = 2.2 mH
A Currentdecayinglinearlytozeroin1µsec
Frequency limited by T_J max. V_A = 1.5 x V_R typical
Electrical Specifications
Parameters
20FQ Units
Conditions
V_FM Max. Forward Voltage Drop (1)
0.53
* See Fig. 1
0.65
0.47
0.61
I_RM Max. Reverse Leakage Current (1)
4
* See Fig. 2
150
C_T Max. Junction Capacitance
L_S Typical Series Inductance
dv/dt Max. Voltage Rate of Change
(Rated V_R)
(1) Pulse Width < 300µs, Duty Cycle < 2%
1850
6.5
10,000
Thermal-Mechanical Specifications
V @ 30A
V @ 60A
T_J = 25 °C
V @ 30A
V @ 60A
T_J = 125 °C
mA T_J = 25 °C
mA T_J = 125 °C
V_R = rated V_R
pF V_R = 5V_DC, (test signal range 100Khz to 1Mhz) 25 °C
nH Measured from top of terminal to mounting plane
V/ µs
Parameters
20FQ Units
Conditions
T_J Max.JunctionTemperatureRange
T_stg Max.StorageTemperatureRange
R_thJC Max.ThermalResistanceJunction
to Case
R_thCS TypicalThermalResistance,Caseto
Heatsink
-65to150 °C
-65to150 °C
1.25 °C/W DCoperation
* See Fig. 4
0.50 °C/W Mountingsurface,smoothandgreased
wt ApproximateWeight
5.8(0.2) g(oz.)
T MountingTorque
Min.
Max.
14(12) _Kg-cm Non-lubricatedthreads
23(20) ^(Ibf-in)
Case Style
DO-203AA(DO-4) JEDEC
2
www.irf.com