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40L45CW
40V 40A Schottky Common Cathode Diode in a TO-247AC package
International
Tiallit, Rectifier
Bulletin PD-20566 rev.B 07/02
4OL4OCW
40L45CW
SCHOTTKY RECTIFIER
Major Ratings and Characteristics
Description! Features
2 x 20 Amps
. . . The 40L..CW centertap Schottky rectifier has been optimized
Characteristics 40L..CW Units forvery Iowforward voltage drop, with moderate leakage. The
proprietary barriertechnology allows for reliable operation up
IRA Rectangular 40 A to 150° C junction temperature. Typical applications are in
waveform switching power supplies.
vRRM 40-45 V . 150° C To operation
. Center tap TO-247 package
|FSM @tp = 5 us sine 1240 A . High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
VF @20Apk, TJ=125°C 0.42 V . Very low forward voltage drop
(per leg, Typical) . High frequency operation
a o Guard ring for enhanced ruggedness and long term
T_, -55 to 150 C reliability
Case Styles
40L..CW
Common
Cathode
L 1 i 3
Anode Anode
Common
Cathode
TO-247AC
1
40L4OCW, 40L45CW
International
Bulletin PD-20566 rev. B 07/02 IEER Rectifier
Voltage Ratings
Part number 40L4OCW 40L45CW
VR Max. DC Reverse Voltage (V) 40 45
VRWM Max. Working Peak Reverse Voltage (V)
Absolute Maximum Ratings
Parameters 40L..CW Units Conditions
IFW) Max.Average Forward (PerLeg) 20 A 50% duty cycle@Tc= 122''C, rectangularwaveform
Current *See Fig. 5 (PerDevice) 40
|FSM Max. PeakOneCycleNon-Repetitive 1240 A 5ps Sine or3ps Rect. pulse 2lt)tr1fyt1igy/i.1nti.dwith
Surge Current (Per Leg) "See Fig. 7 350 10ms Sine or6ms Rect. pulse rated VRRM applied
EAS Non-RepetitiveAvalancheEnergy 20 mJ T, = 25°C, IAS = 3Amps, L=4.4mH
(Per Leg)
I AR RepetitiveAvaIancheCurrent 3 A Currentdecayinglinearlytozeroin1usec
(Per Leg) Frequencylimited by TJ m:ax.VA=1.5xVR typical
Electrical Specifications
Parameters 40L..CW Units Conditions
Typ. Max.
VFM Forward Voltage Drop 0.48 0.53 V @ 20A T = 25 cc
(Per Leg) * See Fig. 1 (1) 0.61 0.69 V @ 40A J
0.42 0.49 V @20A T = 125 °C
0.60 0.70 v @ 40A J
IR,, Reverse Leakage Current - 1.5 mA TJ = 25 C VR = rated VR
(Per Leg) * See Fig. 2 (1) 20 80 mA T: = 100 ''C
VF(TO) Threshold Voltage 0.27 V T J = T J max.
rt Forward Slope Resistance 8.72 mn
c, Max. Junction Capacitance (Per Leg) - 1500 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C
LS Typical Series Inductance (Per Leg) 7.5 - nH Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change 10000 VI us (Rated VR)
(1) Pulse l/With < 300ps, Duty Cycle <2%
Thermal-Mechanical Specifications
Parameters 40L..CW Units Conditions
T J Max.Junction Temperature Range -55to150 ''C
Tsig Max. StorageTemperature Range -55to150 ''C
Rch Max. Thermal Resistance Junction 1.6 °C/W DC operation * See Fig. 4
to Case (Per Leg)
Rch Max.ThermalResistanceJunction 0.8 "C/W DC operation
to Case (Per Package)
Rmcs Typical Thermal Resistance, Case 0.24 °C/W Mounting surface , smooth and greased
to Heatsink
wt Approximate Weight 6(0.21) g(oz.)
T MountingTorque Min. 6(5) Kg-cm Non-Iubricatedthreads
Max. 12(10) (Ibf-in)
CaseStyle TO-247AC(TO-3P) JEDEC
2
