The QLTP660CPD from Light in Motion is a Phototransistor with Collector Emitter Voltage (Breakdown) 30 V, Collector Emitter Voltage(Saturation) 0.4 V, On-State Collector Current 1.5 to 1.8 mA, Power Dissipation 75 mW, Wavelength(Spectral Sensitivity) 400 to 1200 nm. More details for QLTP660CPD can be seen below.