Photo Transistor(PT),the function is to change photo signal to electric signal。 PT is similar to Bipolar Junction Transistor with the function of magnification, whose photocurrent value is hundreds of times compared to PD.
Audio-visual equipment (TV, set-top box,DVD, stereo)
Household appliances (air conditioners,fans, lighting, etc.)
Remote control toys (aircraft, trains,vehicles, robots, etc.)
Other infrared remote control products
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