The STTH4R02 ultrafast recovery diode features very low conduction losses, negligible switching losses, low forward and reverse recovery times, and high junction temperature. It is specially suited for switching mode base drive and transistor circuits. Packaged in TO-220AC, TO-220FPAC, DPAK, SMB, SMC, and DO-201AB, this device is intended for use in low voltage, high frequency inverters, free wheeling and polarity protection.