■ Features
1. High sensitivity
(PT550 IC : MIN.3mA at E e = 0.1mW/cm 2 PT550F IC : MIN.3mA at E e = 1mW/cm 2)
2. Narrow acceptance : PT550 (∆ θ : TYP. ± 6˚ )
Wide acceptance : PT550F (∆ θ : TYP. ± 50˚ )
3. TO - 18 type standard package
■ Applications
1. Optoelectronic switches, optoelectronic counters
2. Smoke detectors
3. Infrared applied systems