1. I do not understand the IR LED power ratings
   The following Hyperlink is to an application note that covers this topic.
2. Can I use Cyanoacrylates (Crazy Glue, Super Glue, etc.) on your switches?
   No, only use epoxy adhesives on our products.
3. How much torque should I use to fasten down a switch?
   3 to 4 lb-in.
4. What kind of plastics are OPTEK's switch housings made of?
   The materials most commonly used are polycarbonate and polysulfone.
5. How do I select a slotted optical switch?
   Design considerations of speed, resolution, length of optical path, environment, performance, and cost impinge upon the proper selection of interruptive assemblies. OPTEK offers a wide selection of assemblies to meet design requirements. OPTEK’s slotted optical switches feature the following options.
   • Phototransistor (OPB380 Series) or Photologic (OPB480 Series) output
   • Gallium arsenide or gallium aluminum arsenide IR LEDs
   • Dual channel encoder devices (OPB822) in side-by-side or over-under configurations for speed, direction or movement, and relative position sensing
   • Various slot widths and depths
   • Different aperture widths in front of the sensor and emitter
   • Different mounting configurations
6. How do I get technical assistance?
   If further help is needed to determine which slotted optical switch will meet your design requirements, contact technical assistance at:
   email: techsupport@optekinc.com or call: 972.323.2308

Application Information:

• Description of Gallium Aluminum Arsenide Die
• Linear and Rotary Encoders
• Understanding Infrared Diode Power Ratings
• Connecting an Optoelectronic LED and Sensor
• Interfacing Sensors With A Microprocessor
• Maximizing Power Output Using the OP232W