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STPS20L40CFSTN/a30avaiLOW DROP POWER SCHOTTKY RECTIFIER
STPS20L40CFP |STPS20L40CFPST N/a7000avaiLOW DROP POWER SCHOTTKY RECTIFIER


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STPS20L40CF-STPS20L40CFP
LOW DROP POWER SCHOTTKY RECTIFIER
STPS20L40CF/CW/CT/CFP
May 2001-Ed:3B
LOW DROP POWER SCHOTTKY RECTIFIER
Dual center tap Schottky rectifiers designedfor
high frequency switched mode power suppliesandtoDC converters.
These devicesare intendedfor useinlow voltage,
high frequency inverters, free-wheeling and
polarity protection applications.
DESCRIPTION
Low forward voltage drop meaning very small
conduction losses Low dynamic lossesasa resultofthe schottky
barrier Insulated package: ISOWATT220AB, TO-220FPAB
Insulating voltage= 200VDC
Capacitance= 12pF
FEATURES AND BENEFITS
ABSOLUTE RATINGS
(limiting values,per diode)
MAJOR PRODUCTS CHARACTERISTICS
dPtot
dTj Rthja< − thermal runaway conditionfora diodeonits own heatsink
STPS20L40CF/CW/CT/CFP
Pulsetest:*tp= 380μs,δ <2% evaluatethe conduction lossesusethe following equation:
P=0.28xIF(AV)+ 0.022IF2 (RMS)
STATIC ELECTRICAL CHARACTERISTICS
(per diode)
THERMAL RESISTANCES

PF(av)(W)
Fig.1:
Average forward power dissipation versus
average forward current (per diode). IF(av)(A)
Fig.2:
Average forward current versus ambient
temperature(δ= 0.5,per diode).
Whenthe diodes1 and2are used simultaneously: Tj(diode1)= P(diode1)x Rth(j-c)(Per diode)+ P(diode2)x Rth(c)
STPS20L40CF/CW/CT/CFP
1E-3 1E-2 1E-1 1E+00.0
Zth(j-c)/Rth(j-c)
Fig. 4-1: Relative variationof thermal impedance
junctionto case versus pulse duration (TO-220AB TO-247). 5 10 15 20 25 30 35 401E-3
1E-2
1E-1
1E+0
1E+1
1E+22E+2 IR(mA)
Fig.5:
Reverse leakage current versus reverse
voltage applied (typical values,per diode). 5 10 20 50100
C(pF)
Fig.6: Junction capacitance versus reverse
voltage applied (typical values,per diode).
1E-3 1E-2 1E-1 1E+0 1E+10.0
Zth(j-c)/Rth(j-c)
Fig. 4-2: Relative variationof thermal impedance
junction to case versus pulse duration
(ISOWATT220AB, TO-220FPAB).
1E-3 1E-2 1E-1 1E+00
IM(A)
Fig. 3-2: Non repetitive surge peak forward
current versus overload duration (maximum
values, per diode, ISOWATT220AB,
TO-220FPAB).
1E-3 1E-2 1E-1 1E+00
140 IM(A)
Fig. 3-1:
Non repetitive surge peak forward
current versus overload duration (maximum
values,per diode, TO-220AB/ TO-247).



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