The bpw34 features an elevated speed photodiode with good photo sensitivity. It responds to visible and near infrared radiation. Like all photo diode, The bpw34 is normally operated in series with a resistor and the current flowing though it is contingent upon the degree of light falling atop it. The intensity of light is measured in luminance. Technical specification reverse breakdown voltage 60vswitching speed 20nsdiode capacitance 70pf 1mhz, Vr=0v open circuit voltage 350mvrise and fall time 100ns each features high photo sensitivity high radiant sensitivity suitable for visible and near infrared radiation fast response timesapplications switching circuits isolation circuits coupling circuits