CTR: 80...600 %. Diode IF: 50mA. Courant IF Diode (peak): 1A. Diode Power: 60mW. Diode threshold voltage: 1.1V. Collector current: 50mA. Output: transistor output. Number of terminals: 4. Pitch: 7mm. Pd (Power Dissipation, Max): 120mW. RoHS: yes. Assembly/installation: surface-mounted component (SMD). Tf (type): 5us. Housing: SO-4. Housing (according to data sheet): SO-4. Tr: 3us. Operating temperature: -55...+100°C. Saturation voltage VCE(sat): 0.3V. Collector/emitter voltage Vceo: 80V. Vrms: 2500V. Spec info: High-speed switching (tr=3us TYP, tf=5us TYP)