Anyone know what kind of electronic part this is?

[aphex]

In my build there is something listed as a 270UH that I'm unable to locate.

I came across this part that doesn't seem to fit anywhere else;
Pic 1
Pic 2

Any ideas if that's what it is?

It kinda looks like a capacitor, but its rubber and the top is a bit different.

 

[MrPickins]

UH is micro-Henry, I think. Should be a coil (inductor).

Edit: "Henries" is wrong it seems. Plural is just "Henry"

 

[Red Squirrel]

I'm thinking it is in fact a capacitor, I've seen odd shapped ones before. There are actually some that are flat and look kind of like a whopie cushion. I don't really know much about electronics though so best to wait till someone better in that field chimes in.

 

[aphex]

Well the spot the 270UH is supposed to go is the exact opposite side of the board from where the arrow is pointing; (The blue part on the far left)
Pic of Board

 

[frostedflakes]

Yup, it's an inductor.

 

[Mark R]

It's a filter inductor - specifically a 220 µH one. No idea what the current rating would be.

Placement in the power circuit, as suggested by the description of the placement, woudl be appropriate.

 

[aphex]

Thanks guys. So if the design is calling for a 270uH and he provided a 220uH, would there be any problems?

 

[Eli]

Originally posted by: aphex
Thanks guys. So if the design is calling for a 270uH and he provided a 220uH, would there be any problems?

No real way to tell, but it must be within spec.

 

[finite automaton]

Originally posted by: Eli

Originally posted by: aphex
Thanks guys. So if the design is calling for a 270uH and he provided a 220uH, would there be any problems?

No real way to tell, but it must be within spec.

or the guy effed up

 

[soydios]

Originally posted by: RedSquirrel
There are actually some that are flat and look kind of like a whopie cushion.

Those are ceramic capacitors.

uH does stand for micro-Henry. thus it is an inductor.

 

[BehindEnemyLines]

Originally posted by: aphex
Well the spot the 270UH is supposed to go is the exact opposite side of the board from where the arrow is pointing; (The blue part on the far left)
Pic of Board

Looks like a small development board, possibly with motor controls. I have used the larger version of the PIC16F microcontroller before.

Are you working on some particular project?

 

[dighn]

I believe aphex is working on a nixie clock which contains a boost DC/DC convertor. my gut feeling is that a slightly smaller inductor should not matter especially since the nixie tubes won't have strict voltage/current requirements, and a smaller one is probably safer than a larger one. but it's best to look up the convertor chip datasheet and see what kind of inductor it calls for.

 

[BehindEnemyLines]

That sounds interesting. I have been looking for an affordable microcontroller programmer, but they're all pretty expensive.

 

[dighn]

Originally posted by: BehindEnemyLines
That sounds interesting. I have been looking for an affordable microcontroller programmer, but they're all pretty expensive.

if you decide on a microcontroller type to use, you can get dedicated programmers for tens of dollars. heck you can get the official in-circuit programmer from atmel (for the AVR) for like 40 bucks (it's in circuit mind you, but that makes it more convenient imo).