Inductor Question

Twoforty

It's on a unlicensed NES Micro Machines pcb with switch and the inductor (the grey one in between the 2 black capacitors) looks bad. It plays but it has some little glitches and I think replacing that might help It says 15 M H nothing else. Thank you in advance

MrWunderful

Thats a capacitor I believe.

SNESNESCUBE64

I'd make the assumption that it is a 15mH inductor based on what is written on the inductor. Just go on mouser or digikey and find an inductor that is the same size and dimensions and call it good. I would check to make sure that it is actually bad, here's a good article on how to check: http://www.learningaboutelectronics.com/Articles/How-to-test-an-inductor

leatherrebel5150

Maybe its just the picture but it looks like the inductor and cap to the right were melted a bit? Did you put a soldering iron in there by accident?

bunnyboy

That is for the lockout stunner, cutting it out will probably be the same as replacing if you have lockout disabled.

MrWunderful

I thought circuit board inductors look like little coil wrapped rings.

Twoforty

BootGods image of the same board has a green inductor with orange, white, red and white bands on L1 and when I calculate it i'm getting 3900µH at +-5% tolerance. Not sure if i'm right i've never had to do this before. http://www.learnabout-electronics.org/ac_theory/inductors04.php



~SNESNESCUBE64: I Ohm'd it and i got 2.6



~leatherrebel5150: I haven't touched it with a iron yet this is how it looked when I opened it up.



~BunnyBoy: You're right it is part of the lockout but I would prefer to replace it rather then cut it out.



~MrWunderful: Inductors can be in many forms it seems



When i go to convert 15mH to µH it comes to 15000µH I'm easily geting confused.

 

Twoforty

Nevermind its orange, white, brown and silver I'm blind AF! So its 390µH with a +/-10% tolerance.

 

~Orange = 3

~White = 9

~Brown = x10

~Silver = +/-10% tolerance

39 x 10 = 390μH with +/-10% tolerance