question about infra red detectror

Hi all,
I have a infra red detector. the kind you can buy in radio shack. i don't know it's part code so i can't check it's data sheet. i was wondering how to calculate it's maximum and minimum resistance. all it says on the package is

Vceo collector to emitter: 70V
Veco Emitter to collector 5V
Ic Collector current: 50 mA
Total power dissipation: 150 mW
peak sensitivity wavelength: 850nm
spectral bandwidth range 620-980 nm
angle of half sensitivity: ± 20°

I am trying to design circuit that could be turned on by IR LED from scratch.
i also would like to know how to determine the maximum distance that IR LED will be able to effectively turn on my circuit.