View stta2512p datasheet:

STTA2512P STTA5012TV1/2 ® TURBOSWITCH ? ULTRA-FAST HIGH VOLTAGE DIODE MAIN PRODUCT CHARACTERISTICS K2 A2 A2 K1 I 25A F(AV) V 1200V RRM t (typ) 60ns rr K1 A1 K2 A1 STTA5012TV1 STTA5012TV2 V (max) 1.9V F FEATURES AND BENEFITS ULTRA-FAST, SOFT RECOVERY. VERY LOW OVERALL POWER LOSSES IN BOTH THE DIODE AND THE COMPANION K TRANSISTOR. HIGH FREQUENCY AND/OR HIGH PULSED ISOTOPTM CURRENT OPERATION. HIGH REVERSE VOLTAGE CAPABILITY. A LOW INDUCTANCE PACKAGE < 5 nH. K INSULATED PACKAGE : ISOTOPTM Electrical insulation : 2500V RMS SOD93 Capacitance : < 45pF. STTA2512P DESCRIPTION TURBOSWITCH 1200V drastically cuts losses in operations. all high voltage operations which require extremely They are particularly suitable in Motor Control fast, soft and noise-free power