0.1

1

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

0.01

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.1

0.01

1

PT491/PT491F/PT493/PT493F

vs. Irradiance

Fig.10 Collector-emitter Saturation Voltage

vs. Irradiance

Fig. 9 Collector-emitter Saturation Voltage

Please refer to the chapter “ Precautions for Use.”

( PT491/PT493 )( PT491F/PT493F )