Bourns Filters for SE/30 - where to buy?

[techknight]

You guys wont believe this....

The 3 samples from Bourns showed up today.... They are brand new with an april datecode of this year, They had to manufactured

They are 4120R-601-250/201

Even crazier is the fact that the box is 2 feet long, and 3 inches by 3 inches square.

The plastic tube was almost as long as the box, to contain only 3 chips. Weee, waste of packaging much?

 

[JDW]

You guys wont believe this...?

"Ask and ye shall receive" comes through once again. I must admit that after their last response to you I was skeptical. But it just goes to show that sheer act of asking, combined with persistence (and properly worded emails) pays off. It also shows that BOURNS is an honorable company that keeps it word. They posted "free sample availability" on their site, and despite being out of stock they manufactured these chips in order to keep their word. Astonishingly honorable.

You now have your hands full of BOURNS filters, technight!

 

[techknight]

yea.. They either manufactured a large amount them to stock other suppliers and sent the samples along the way, (more likely) or manufactured just the samples. (less likely)

 

[uniserver]

I found these network filters in 3 places.

#1

From Mouser

1: $3.52

10: $2.89

100: $2.59

1,000: $2.00

2,500: $1.84

http://www.mouser.com/ProductDetail/Bourns/4120R-601-250-201LF/?qs=sGAEpiMZZMsuSxY5Q00ZeVWOjREIxMRr

Their cheapest shipping is 4.99 USPS.

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#2

From Digikey

1 2.80000

10 2.50000

50 2.15000

100 1.85000

250 1.60000

500 1.45000

http://www.digikey.com/product-detail/en/4120R-601-250%2F201L/4120R-601-250%2F201L-ND/3593700

Do not know shipping, never ordered from

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#3

From TTI

Qty Price Ext Price

20 $1.739 $34.78

100 $1.613 $161.30

http://www.ttiinc.com/page/search_advpart.html?partsNumber=4120R-601-250%2f201LF&mfgShortname=BOU

Shipping:

Handling:

8.00

1.60

you must order at-least 20

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[JDW]

TechKnight, it's been about a year and a half since I shipped two of my non-functional Simasimac motherboards to you, along with those Bouns filters. As I recall you were waiting to obtain some other parts in order to make a repair. Have you been able to accomplish that? I am especially interested in getting back the socketed CPU board.

Many thanks!

 

[techknight]

One works. Other one I gave up on and put it on the back burner. BTW. This is something that should have been handled in a PM.

I could send it off to uniserver and let him take a stab at it

Thanks.

 

[James1095]

Even crazier is the fact that the box is 2 feet long, and 3 inches by 3 inches square.
The plastic tube was almost as long as the box, to contain only 3 chips. Weee, waste of packaging much?

On Semiconductor does this. More than once I have ordered samples from them, 5 SOIC-8 chips that came in a 18" long IC tube. The tube was inside an even longer sealed anti-static bag along with several packets of desiccant and a moisture sensing card. This was wrapped in butcher paper and stuck in a box roughly 8"x12"x24" which was sent UPS.

I have seen a similar deal where a friend of mine in the UK ordered some stuff from Farnell and one of the items happened to be 5 resistors that actually shipped from Newark over here in the US, sent overseas via UPS in a big box. 5 little resistors!

I think these companies get bulk deals on shipping as well as the packing supplies and it ends up being cheaper for them to use the same packaging for everything. Still seems like a waste though to UPS a big box with a little padded envelope would suffice.

 

[JDW]

BTW. This is something that should have been handled in a PM.

Sorry about that, I had no intention whatsoever to chastise or criticize you by my previous post here. I didn't think anything of making it public in light of the fact you and I have discussed this publicly before, and you also even posted a public

If Uniserver or anyone else would like to try, in light of the fact it's been 1.5 years and still hasn't been fixed, I'm eager for anyone to try. But I forewarn everyone. I tried it and failed, even though I have schematics. That's why I shipped it to TechKnight. He is a more savvy about highly technical logic board repairs than I am; and also, it's good to have another person's set of eyes to overlook the board. I thought he might find something I missed. Even though these boards are very old, they are still quite complex!

Anyway, I shipped 6 Bourns filters to TechKnight in May 2012 (kindly sold to me at the time by our very own Trag) because TechKnight needed to replace them on one or both of my boards. So if you replaced the Bourns on both logic boards, TechKnight, then whomever else would like to take a shot at the board can rest assured that the Bourns filters are not the root problem!

Anyone up to the challenge?

 

[techknight]

Yea, the first board (socketed). is fixed. I did fix that. caps rotted the RAM traces out.

The second board I think has bad GLU.

 

[techknight]

BTW. Its not a big deal, it was just at the spur-of-the-moment skim on your post basically made me feel slow. LOL

I am slow at doing things and getting things done damnit... LOLLOL

All joking aside. Its been awhile. thats for sure. Not a whole lot of time, and a project that was totally forgotten about. whoops.

 

[uniserver]

i am going to buy some of these little crappers!

i need some!

from TTI i think. 1.7 ea for 20

 

[uniserver]

will this work?

 

[uniserver]

OK THE "F" on the end of the part number just means lead free.

they not only charge shipping but handling as well.

 

[uniserver]

just got em, they are legit. Not a bad deal.

came a big box!

 

[JDW]

Meaning, if they were bourn outside Costa Rica, they are illegitimate?

:beige:

 

[uniserver]

Meaning, if they were bourn outside Costa Rica, they are illegitimate? :beige:

lol…

Anyways.

here is a SE/30 i am working on here that has the gangster stripes.

this board has some unique filters i have not seen before so i figured i would take a picture and share,

maybe this part number will come up even cheaper?

 

[uniserver]

98 cents here

http://www.onlinecomponents.com/dale-mdp1603470g.html?p=11218616