Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers



Laser Pointer Store

Pin polarities

abikutn

New member
Joined
Oct 30, 2012
Messages
37
Likes
0
Points
0
Hi I am a little confused with what should be postive and negative in this pin configuration.



I tried 1 -> positive and 2 -> Gnd. But I dint see any light at the threshold current and operating voltage.

Could anyone help me out on this.
 

Speedy78

New member
Joined
Dec 17, 2012
Messages
2,084
Likes
134
Points
0
What diode is it? From that illustration 3 is your positive and 1 is your ground. 2 is your case pin.
 

Zom-B

New member
Joined
Mar 25, 2008
Messages
897
Likes
28
Points
0
I don't know where you two learned electronics, but that stuff is dangerous to say.

1 is negative, 2 is case positive.

3 is the photo diode that no one I've ever heard of ever utilizes.

There's even a chance you blew your diode as they are very sensitive to reverse biasing (above 4V).
 
Last edited:

Speedy78

New member
Joined
Dec 17, 2012
Messages
2,084
Likes
134
Points
0
Ah well then I misinterpreted the illistration then. Good to know. My electroc skills are as far as 18436572.
 




Top