The LN451YPX from Panasonic Corporation is a LED with Forward Voltage 2.2 to 2.8 V, Forward Current 30 mA, Luminous Intensity cd 0.00075 to 0.002 cd, Luminous Intensity mcd 0.75 to 2.0 mcd, Reverse Current 10 µA. More details for LN451YPX can be seen below.