The STTH4R02 uses ST's new 200 V planar Pt doping technology, and it is specially suited for
switching mode base drive and transistor circuits  Packaged in DPAK, SMB and SMC, this device is intended for use in low voltage, high frequency inverters, freewheeling and polarity protection

Features
 Negligible switching losses
 High junction temperature
 Very low conduction losses
 Low forward and reverse recovery times