2Ӱ1/2 PARAMETER Forward Voltage Reverse Current Peak Emission Wavelength Dominant Wavelength Viewing Angle TEST COND. I F = 20 mA V R = 5V I F = 20 mA I F = 20 mA I F = 20 mA к MIN. TYP. 3.3 520 525 110/50 MAX. 4.0 10 UNIT V ӴA nm nm Deg BIN GRADE LIMITS ( I F = 20 mA ) LUMINOUS INTENSITY / m.