Indrared LED emitter for simulating appliances remote control 2m lead with 2pin Weidmüller BLAC 2R OR 1578220000 connector *new*

Infrared blaster for creating remote controlled signals for your appliances. This nifty thing is mounted directly in front of equipment's IR receiver with double sided tape. This way when it is operated, it will operate the that particular device and not interfere with anything else.

Disregarding what on earth you are going to use these for here’s a few tips how to use it.

• Typical LED operating current is ~5...15mA, even though it can operate even up to 30mA current. LED brightness difference between 15mA and 30mA is so low that there is no point on flooring the LED on full blast.
• How to calculate current limiting series resistor for one LED:
  • R=U-U_{LED threshold voltage} / I_LED
  • In layman terms, subtract LED threshold voltage from your operating voltage (usually your power supply or device output’s voltage) (voltages in volts) and divide the result by your desired amount of current in amps. As a result you will get your resistor value in ohms
• How to calculate series resistor for multiple LED’s:
  • R=U-(U_{LED1 threshold voltage} + U_{LED2 threshold voltage....)} / I_LED
  • In layman terms same thing as bellow, but add up all of the LED’s threshold voltages together and subtract that from your operating voltage.
• Remember to check that the resistor power dissipation will not scorch the resistor, and here’s how to calculate the power dissipation of a resistor:
  • P=U_resistor*I
  • In layman terms, use the voltage you counted up previously and multiply it by the current in amps. Your result is in watt’s. Compare that result to your intended resistor’s max power rating. Typical small resistor power ratings are 1/8W (125mW), 1/4W (250mW), 1/2W (500mW), 1W and so on...
• And then remember the right polarity!... Or your creation shall not glow!

LED’ technical details:

• Color:
  • Infra red
• Threshold voltage:
  • 1,5VDC
• Max current:
  • 20mA
• Recommended forward current:
  • 5...15mA
• Beam angle:
  • 120°, diffused
• Polarity:
  • Pin 1:
    • Anode (+)
  • Pin 2:
    • Cathode (-)
• Luminous intensity:
  • Wild guess, somewhat shorter distance upon operating an appliance in a same manner as typical remote controller
• Wire length:
  • 2m
• Connector:
  • 2pin Weidmüller BLAC 2R OR, 1578220000
• Installation method:
  • 18x18mm piece is mounted right in front of equipment IR receiver with double sided tape (or just leave it hanging there the right way around)