1.9mm Round Subminiature Axial Infrared LED

The device is spectrally matched with silicon photodiode and phototransistor. 
 
Features  :   
Small double-end package
High reliability
Low forward voltage
Good spectral matching to Si photodetector
Pb free
The product itself will remain within RoHS compliant version. 
 
Application  :  
PCB mounted infrared sensor
Infrared emitting for miniature light barrier
Floppy disk drive
Optoelectronic switch
Smoke detector
 

Product Name  :  1.9mm Round Subminiature Axial Infrared LED 
 
Description  :  
IR91-21C is an infrared emitting diode in miniature SMD package which is molded in a water clear plastic with spherical top view lens.