Where to get components?

Forum 2005-2010 (read only) General Frequently-Asked Questions
1

No sure if this is allowed to ask but where in general are you guys/gays getting parts need to assemble shield, etc?

I am looking to get the following parts but am going crazy having to search several sites to complete my list. Is there any sites in particular that ships most of what you are looking for quicking and accurately?

BNC PCB SOCKET 1

R 10 2K7 All Resistors .25w or .4w or .6w 1
R 3 4k7 Metal Film 1% - if possible 1
R 12 8k2 1
R 2 10K 1
R 11 15 K 1
R 4,5,6,7 22k 4
R 8,9 100K 2
R 1 150k 1
RV1 100K Preset 18/22 turn cermet top trimmer 1
RV2 5K Preset 18/22 turn cermet top trimmer 1
C 2 3p3 Ceramic capacitor 1
C 3 5p6 1
C 1 150 p 1
C 4,5,6,7 100 nf Polyester or similar capacitor 4
C 8,9 220 nf 2
C 13,16 330 nf 220nf or 470nf also ok 2
C 10,11,12,14,15 10 uf 16 or 25v Electrolytic capacitor 5
IC1 LF356 1
IC2 TL084 1
IC3 ICL7660 or ICL7660A Either version ok 1
IC4 78L05 100ma +5v Regulator 1
IC5 79L05 100ma -5v Regulator 1
D 1,2,3,4, 1N4148 or 1N914 Diode 4
IC SOCKET 14 PIN DIL 2
IC SOCKET 8 PIN DIL 1

The complete thread, schematic and parts is here:

Thanks

2

digikey

3

I tried them first. Almost made my head explode :o with all of the options that came up for a simple .25 part.

I looked at Jameco and they seem a bit easier to navigate through but I wanted to feed back before I sent an order over to any online source. The locak 'Shack has nothing in the way of parts. :-/

Any oher advice or do I just take a few Advil and give Digikey a shot?

4

jameco is fine, but they only offer ups shipping, which sucks when you want a 3$ bag of resistors and it cost 9 in shipping (and ups takes 8-10 days to get to my house)

digikey's site is actually easier to find what you need, if you know what you need

start with resistor, just type resistor in in the search, you already have some of the spec's

All Resistors .25w or .4w or .6w 1

go with quarter watt, find that filter and apply it

now

Metal Film 1% - if possible

theres a filter for tolerance AND material

the magic trick here is to click 1 filer at a time and you can narrow it down, so lets say 1% is first found, apply it and look for metal film

once your filtered down to quarter watt 1% metal film then look for values, place em all in the cart and move on to the next group of components (which in this case is capacitors)

on the other hand jameco sends you a catalog every few months

5

Some of the better places to buy from are those with a huge selection. So take those advile and a couple of redbulls and make a night of it.

6

Mouser might also do you well

7

Allied is another good one.

Thing i like about mouser and allied is they still have a physical catalog. Too me its allot easier to thumb threw the catalog then order online.

This place has been recommended in other threads as a good source for bulk parts.
http://www.goldmine-elec.com/

I've been considering rolling the dice on one of there surprise boxes and see what i get.
http://www.goldmine-elec-products.com/prodinfo.asp?number=G9321

8

Allied seems to have most of what I need in stock.

However after going over the parts and all of the different options, I am thinking I may need to get a better understanding of electronics before tackling this part of my project.

Is there a good source or book any one would recommend to get started?

9

What about RS?

10

Is there a good source or book any one would recommend to get started?

There are a great many sources and books on this topic. It can also get quite in depth mathematically. I doesn't take long before the books and sources start getting into Ohm's Law and all of that. Fortunately your looking at reproducing something that has already been designed so all of that isn't really needed. So just Google the parts to get a better understanding of the,.. Wikipedia should be a decent source to learn about them.

I use to take electronic classes back in high school. But have forgotten most of what little i learned over the past 12 years. So as a refresher before buying the arduino i picked up a helpful little kit. Comes with a project book, some components and a breadboard. The project book was good about teaching some of the basics without diving into all too much of the math behind it all.

Part of the wide variety of parts is different manufactures but most of the verity is in there specs. You need to have a pretty good understanding of you circuit and the power needs across it. But the project your working on tells you all the specifics you need. So enter there full descriptions into the catalog search and see what comes up. Then choose the cheapest one that's inside the parameters you need.

11

Yeah, I thought about it and figured I would research each of the parts I was not sure of.

What stumped me was that one of the parts I needed was this an electrolytic capacitor 10uf 16v or 25v. I could not locate this on the allied site but did find this part:

CAPACITOR, AL ELECTROLYTIC; 10 uF; 0 TO 25 WVDC; -75%, -10% AND 50%, -10%; BB

Link:
http://www.alliedelec.com/search/productdetail.aspx?SKU=5071057

Not knowing if this will work or not is the problem.

Since I am in no rush to get this up and running (I am waiting on a few other shields and parts) I will orde what I can understand and ask about what I don't (After searching of course).

12

Yes that will work. The important part is the 10uF and the fact that it can handle the required voltage.

13

Thanks.

Ordering some parts now.

14

Also try Octopart when searching for hard to find parts.
Shows parts from multiple sources.
http://octopart.com/

15

I'm usually not real picky where I get parts... BGMICRO, ALLELECTRONICS and others are great to deal with... but if I had to pick who I keep going back to the most... I'd say my orders for stuff are done mostly through Mouser... easy process, fast delivery and they nearly always have exactly what I'm looking for.

16

hows shipping?

17

Surplus:
All Electronics
BG Micro
Electronics Goldmine
eBay (assorted delaers)

New and Branded:
Mouser
Digikey
Jameco (at least, they're trying. Last time I bought from them they were still mainly surplus)

Mouser has been edging out digikey recently, if only because they let you sort search results by price... Both Mouser and Digikey have really nice search capabilities.

18

Ordered everything from Mouser except the two items they are out of stock on:

Mouser #: 523-31-5431-10RFX
Mfr. #: 31-5431-10RFX
Desc.: RF Connectors PC R/A BLHD JCK Ni WHITE
HOUSING
2 $1.60 $3.20 2 Pending Pending -

Mouser #: 649-DILB8P223TLF
Mfr. #: DILB8P-223TLF
Desc.: IC & Component Sockets 8P IC SOCKET
2 $0.12 $0.24 2 Pending Pending -

Mouser #: 855-D2814-01
Mfr. #: D2814-01
Desc.: IC & Component Sockets 14 PIN DIL IC SOCKET
VERT PC TAIL
2 $0.63 $1.26 2 Pending Pending -

Mouser #: 512-1N4148
Mfr. #: 1N4148
Desc.: Rectifiers 100V Io/200mA BULK
8 $0.03 $0.24 8 Pending Pending -

Mouser #: 863-MC79L05ABDG
Mfr. #: MC79L05ABDG
Desc.: Linear Regulators - Standard 5V 100mA
Negative
2 $0.38 $0.76 2 Pending Pending -

Mouser #: 595-UA78L05CD
Mfr. #: UA78L05CD
Desc.: Linear Regulators - Standard 5.0V 100mA
2 $0.48 $0.96 2 Pending Pending -

Mouser #: 700-ICL7660CPA
Mfr. #: ICL7660CPA+
Desc.: DC/DC Switching Controllers IC VOLTAGE
CONVERTER
2 $1.61 $3.22 2 Pending Pending -

Mouser #: 511-TL084IN
Mfr. #: TL084IN
Desc.: Op Amps Quad Gen Purp JFET
2 $0.84 $1.68 2 Pending Pending -

Mouser #: 594-2222-304-54224
Mfr. #: BFC230454224
Desc.: Polyester Film Capacitors 220nF 5% 400volts
4 $0.50 $2.00 4 Pending Pending -

Mouser #: 80-C410C151K5G5CA
Mfr. #: C410C151K5G5CA
Desc.: Multilayer Ceramic Capacitors (MLCC) - Leaded
50volts 150pF 10%
2 $0.25 $0.50 2 Pending Pending -

Mouser #: 80-C315C569D2G
Mfr. #: C315C569D2G5TA
Desc.: Multilayer Ceramic Capacitors (MLCC) - Leaded
C315 5.6pF 200volts C0G +/-0.5pF
2 $0.33 $0.66 2 Pending Pending -

Mouser #: 581-SR152A3R3DAA
Mfr. #: SR152A3R3DAA
Desc.: Multilayer Ceramic Capacitors (MLCC) - Leaded
200volts 3.3pF C0G
2 $0.28 $0.56 2 Pending Pending -

Mouser #: 72-T93XB-5K
Mfr. #: T93XB502KT20
Desc.: Trimmer Resistors - Multi Turn 3/8 SQ H/ADJ 5K
1 $1.51 $1.51 1 Pending Pending -

Mouser #: 652-3299W-1-104LF
Mfr. #: 3299W-1-104LF
Desc.: Trimmer Resistors - Multi Turn 100Kohms
Standoffs Vertical Adjust 3/8
1 $2.63 $2.63 1 Pending Pending -

Mouser #: 660-MF1/4CC1503F
4 $0.14 $0.56 4 Pending Pending -

1/25/2010 11:11 PM
Mfr. #: MF1/4CC1503F
Desc.: Metal Film Resistors 150K 1% 50PPM

Mouser #: 71-CMF55100K00BHEK
Mfr. #: CMF55100K00BHEK
Desc.: Metal Film Resistors 1/4watt 100Kohms .1%
4 $0.36 $1.44 4 Pending Pending -

Mouser #: 660-MF1/4CCT52R2202F
Mfr. #: MF1/4CCT52R2202F
Desc.: Metal Film Resistors 1/4 WATT 22K OHM 1%
4 $0.08 $0.32 4 Pending Pending -

Mouser #: 71-CMF5515K000FKEK
Mfr. #: CMF5515K000FKEK
Desc.: Metal Film Resistors 1/4watt 15Kohms 1%
2 $0.25 $0.50 2 Pending Pending -

Mouser #: 71-CMF5510K000FEEB
Mfr. #: CMF5510K000FEEB
Desc.: Metal Film Resistors 1/4watt 10Kohms 1%
8 $0.36 $2.88 8 Pending Pending -

Mouser #: 71-CMF558K2500FHEK
Mfr. #: CMF558K2500FHEK
Desc.: Metal Film Resistors 1/4watt 8.25Kohms 1%
4 $0.10 $0.40 4 Pending Pending -

Mouser #: 71-CCF558K25FKE36
Mfr. #: CCF558K25FKE36
Desc.: Metal Film Resistors 1/4watt 8.25Kohms 1%
Rated to 1/2watt
2 $0.04 $0.08 2 Pending Pending -

Mouser #: 71-CMF554K7000FKEK
Mfr. #: CMF554K7000FKEK
Desc.: Metal Film Resistors 1/4watt 4.7Kohms 1%
2 $0.25 $0.50 2 Pending Pending -

The only thing they were missing is the LF356 and the 220 nf capacitors.

The total order came to $26.10.

Now to order the blank shield boards from Adafruit. ;D

On the very up side, I got my Tellymate shield in the mail today!!! ;D

19

Is there a good source or book any one would recommend to get started?

I would highly recommend the book, "Teach Yourself Electricity and Electronics, 4th Edition" by Stan Gibilisco (ISBN 0071459332 or 9780071459334). The cover of the book is a little hokey, but the content is excellent, starting with basic electron theory and will take you all the way through analog and digital concepts to computers.

20

Both Mouser and Digikey have really nice search capabilities.

jameco used to have that system, then somewhere along the line they turned to what they have now, so for me it takes for ever to find something just to get stuck with a 9$ shipping bill.

I was asking about mousers shipping cause last time i checked they did not offer usps, so therefore I keep going to digikey (usps shipping is like 2.5 bucks on small items, even on a rather large package it was only 4)