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STTH112-STTH112A-STTH112U
HIGH VOLTAGE ULTRAFAST RECTIFIER
STTH112/A/UJanuary 2003- Ed:2
HIGH VOLTAGE ULTRAFAST RECTIFIER
The STTH112, whichis using ST ultrafast high
voltage planar technology,is specially suited for
free-wheeling, clamping, snubbering, demagneti-
zationin power supplies and other power switching
applications.
DESCRIPTION Low forward voltage drop High reliability High surge current capability Soft switchingfor reduced EMI disturbances Planar technology
FEATURES AND BENEFITS
ABSOLUTE RATINGS (limiting values)
MAIN PRODUCT CHARACTERISTICS
STTH112/A/U evaluate the maximum conduction losses use the following equation:
P=1.35xIF(AV) +0.3xIF2 (RMS)
STATIC ELECTRICAL CHARACTERISTICS
THERMAL PARAMETERS
DYNAMIC ELECTRICAL CHARACTERISTICS
P(W)0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2
Fig.1: Conduction losses versus average current.
(A)FM0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Fig. 2: Forward voltage drop versus forward
current.
STTH112/A/U
Z/Rth(j-c) th(j-c)1.E-01 1.E+00 1.E+01 1.E+02 1.E+03
Fig. 3-1: Relative variationof thermal impedance
junction ambient versus pulse duration (epoxy
FR4, Lleads= 10mm) (DO-41).
Z/Rth(j-c) th(j-c)1.E-01 1.E+00 1.E+01 1.E+02 1.E+03
Fig. 3-2: Relative variationof thermal impedance
junction ambient versus pulse duration (epoxy
FR4) (SMA).
(°C/W)th(j-a)012 34567 89 10
Fig. 4-1: Thermal resistance junctionto ambient
versus copper surface under each lead (epoxy
printed circuit board FR4, copper thickness: 35μm)
(DO-41, SMB).
(°C/W)th(j-a)0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Fig. 4-2: Thermal resistance junctionto ambient
versus copper surface under each lead (epoxy
printed circuit board FR4, copper thickness: 35μm)
(SMA).
1.E-01 1.E+00 1.E+01 1.E+02 1.E+03
Z/Rth(j-c) th(j-c)
Fig. 3-3: Relative variationof thermal impedance
junction ambient versus pulse duration (epoxy
FR4)(SMB).
STTH112/A/U
PACKAGE MECHANICAL DATASMA
FOOTPRINT (in millimeters)
STTH112/A/U
PACKAGE MECHANICAL DATASMB
FOOTPRINT (in millimeters)
STTH112/A/U
PACKAGE MECHANICAL DATADO-41 Epoxy meets UL 94,V0
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