IR
TLP521 Series Optocoupler with GaAs IR-LED & Photo-Transistor
The Toshiba TLP521-1 consists of a photo-transistor optically coupled to a gallium arsenide infrared emitter diode.
CSL1501RW- Ultra-Compact Side-Emitting Infrared LED for IoT and VR/MR/AR Applications
ROHM has introduced CSL1501RW, an ultra-compact side-emitting infrared LED that is ideal for head-mounted displays, industrial headsets, and VR/MR/AR (xR, virtual reality) gaming systems.
TCRT5000 IR Sensor
Pin Configuration
1
Collector
The collector of the phototransistor is connected to +5V
2
Emitter
IR LED (Infrared LED)
Pin Configuration
The IR LED or Infrared LED has polarity i.e.it has a positive and negative pin. The pin which is long is the positive pin (anode) and the pin which is short is the negative pin (cathode) as shown in the above IR LED pinout.
TSOP1738 IR Receiver
TSOP1738 Pin Configuration
Pin Number
Pin Name
Description