PHR-803T Other diode

[cbrian4]

I have extracted this completely and i believe that this is an infrared diode but im unsure. It has four pins on it and I did some tests on it with a digital multimeter and the only time the meter responded was when i had the probes on the ground pin and the top pin, see picture. I did not see any light coming out of the diode so i thought i would hook up a fully charged cr123 (i did not care about the diode). I saw a little light but definitely not a lot of light ( i might have fried it instantly) i held there for only a few seconds, at which point the diode got very hot and scalded my fingers. I repeated a couple times (and burned my finger each time) ;D Until the point that i accidentally shorted the pins. I now no longer get any reading from the multimeter nor does it heat up when power is applied. It is most certainly dead as i abused it quite a bit, or was it the other way around : It might be a red as others have stated and it is to be noted that i never tried the negative probe on any other pin except the ground pin. In my next sled i will try other pins. Hope this is of some contribution.

 

[IgorT]

Well, there should be two diodes in there. A red and an IR.

The red can take 100mA i heard. You should ask DanQ how he connected it.

 

[Dr_Evil]

The 803T has one red and one violet diode. I have that diode sitting in front of me. I don't know what pin does what or how much power it needs or can take.

 

[IgorT]

Since you know the ground pin, you can just try the other pins with safe currents, till you get red. One will be IR, one will be PD (or not used) and the last will be red..

If you use under 100mA it should work fine.

 

[GooeyGus]

Ok, so if you're looking at the diode with the case pin (with no black circle around it) facing the botttom (6 o'clock) then the pin to the left (9 o'clock) is going to be your infrared +, and the pin to the right (3 o'clock) is going to be your red +

Hope that helped