What Components do you use? - Electronic Circuits Projects Diagrams Free

AtomSoft · 1st July 2008, 03:53 PM

Hey im trying to get a nice little setup going for future projects. Im not rich so i wanted to know if some of the people on the forum can give me some sort of listing of commonly used components and there values. This can include but is not limited to:

Resistors
Capacitors
Switches (tactile types pushbutton)
Relays (solid or not)
Triacs
Transistors (value as 2n2222 or something)
Common uCs (PIC or ATMEL any or)
Common ICs ( bridges, 555s, 485s, 232s etc)
Parts like Sockets and there different types
Leds (3mm or 5mm or quare)
conductors
connectors like polarized and non-polarized
plain Crystals or Oscillators or resonators

You dont have to know about all but info on whats commonly used on at least 1 part from above would be nice. Like what are the most commonly used resistor values? 1k, 22k, 4.7k etc...

Thanks again. I know it actually depends on the project you are working on but whenever i seem to start a project i tend to stray... nay add something to it. I would just like to be prepared and not have to order 1 thing at a time only and wait like 1 month to finish 1 project.

I have no local sources for these parts that can even compare to the online prices and availability and selection. So any help would be GREATLY! appreciated.

3v0 · 1st July 2008, 03:56 PM

This question is asked and answered on a regular basis. The last good thread I recall was started by Krunlink.
I for resistors I suggest getting an assortment from the people on EBAY. For digital work you do not need a wide variety of caps. If you plan to do much analog work then get an asortment of the types you tend to use. To figure out what you want/need look at projects of the sort that you might want to build.

Pommie · 1st July 2008, 03:56 PM

Breadboards and voltage regs.

Mike.

3v0 · 1st July 2008, 04:06 PM

When I started I purchased two ceramic osc in the most common freqs. Mosty 2 MHz steps from 4 to 20. They are great for breadboarding or if your app does not require an exact clock you use one part instead of three. They are good enough for communication but not good enough to generate video signals.

Most modern PICs have internal oscs so they are not as useful as they once where.

I stock the common crystals and required caps.

ericgibbs · 1st July 2008, 04:16 PM

hi atom,
A few low cost OPA's [NOT 741's] , I use the CA3140 single and CA3240 dual opa,
they have a reasonable spec and the can go close to zero on the output.

Comparators , low cost LM393's.

Dont forget a pnp version of the 2N2222 and say a couple of 2N7000 NMOSFET's

You have listed leds, but also 7seg leds are handy and also a 4 line * 16 LCD.

AtomSoft · 1st July 2008, 07:16 PM

Wow thanks a bunch guys!

Quote:

Pommie:
Breadboards and voltage regs.

How could i forget those

Thanks

3v0 love the info

ericgibbs Thanks a bunch!

Looking into that other post from 3v0 bbs

picbits · 1st July 2008, 07:18 PM

I started making a database of all my components.

Got to around 20,000 components (individual ones, not individual types) and got bored.

AtomSoft · 1st July 2008, 07:42 PM

lol cool tho... Sounds like fun to have that many you should be prepared more or less for many projects.

3v0 · 1st July 2008, 08:00 PM

Quote:

Originally Posted by picbits

I started making a database of all my components.

Got to around 20,000 components (individual ones, not individual types) and got bored.

I do not have near the inventory but made a database just the same. The key is to start when your inventory is small. If you wait till you have 20K parts to enter you will never finish.

There are some things I do not inventory. Mostly resistors and caps. When I see that the supply of a value is getting low I add it to my current order. Values like 1K and 10K are used so frequently in digital work that I order them 200 at a time and get a good price break. Again for sets go to Ebay.

With Mouser I start my next order almost as soon as I hit the confirm button on the current one. The open order is online for months if needed. Filled orders also stay online so you can lookup the number of that part when you forget what it was. DigiKey and Newark are possibly about the same here.

picbits · 1st July 2008, 08:15 PM

Quote:

Originally Posted by AtomSoft

lol cool tho... Sounds like fun to have that many you should be prepared more or less for many projects.

I've got a terrible memory so can never remember if I have the right parts or not. I tend to order a couple of hundred resistors or capacitors at a time then find a box of them sitting where I would never have thought of looking for them.

This ROHS business was good for stocking up as well - I bought maybe 10,000 surplus non-ROHS compliant components for a fraction of the price they should have been.

AtomSoft · 1st July 2008, 11:40 PM

Dont be upset but i dont even know what ROHS is and ive seen the logos so many times. Im about to look it up.

EDIT: Found info @ RoHS - Home. I guess mostly a UK thing (EU)

Quote:

The RoHS Directive stands for "the restriction of the use of certain hazardous substances in electrical and electronic equipment". This Directive bans the placing on the EU market of new electrical and electronic equipment containing more than agreed levels of lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyl (PBB) and polybrominated diphenyl ether (PBDE) flame retardants.

Manufacturers need to understand the requirements of the RoHS Directive to ensure that their products, and their components, comply.

AtomSoft · 2nd July 2008, 12:25 AM

Quote:

Originally Posted by 3v0

I do not have near the inventory but made a database just the same. The key is to start when your inventory is small. If you wait till you have 20K parts to enter you will never finish.

There are some things I do not inventory. Mostly resistors and caps. When I see that the supply of a value is getting low I add it to my current order. Values like 1K and 10K are used so frequently in digital work that I order them 200 at a time and get a good price break. Again for sets go to Ebay.

With Mouser I start my next order almost as soon as I hit the confirm button on the current one. The open order is online for months if needed. Filled orders also stay online so you can lookup the number of that part when you forget what it was. DigiKey and Newark are possibly about the same here.

Do you use a special program to keep track of what you own? Like MS Access.

3v0 · 2nd July 2008, 01:56 AM

Quote:

Originally Posted by AtomSoft

Do you use a special program to keep track of what you own? Like MS Access.

I run a mysql server on my linux web server. I talk to the database from my XP PC with a database query browser called mySQL from the mySQL website,

Writting the queries by had keeps me from forgetting everything about DB.

Not exactly the sort of thing thing I would suggest for everyone. But it is powerful.

When we talked about this earlier some people said they used a spread sheet instead of a database. That should work too.

AtomSoft · 2nd July 2008, 02:56 AM

yeah i know some MySQL im using it on my personal web server along side php. I guess i could setup a database with some tables with common information im going to need on parts... ex:

Table: Resistance
Fields:
Autoid
Type: Metal / carbon / pot etc / network
Resistance: in ohms and have it calculated through php
Tolerance
Quantity

Something like that and just make a nice page for adding parts (just like i did for my site)

and make a nice page for viewing with a search engine and categories.

I bet it will take me only like 2 hrs to make it

i love PHP/MySQL so simple to work with.

Dean Huster · 2nd July 2008, 05:09 AM

For the transistors, I prefer the very common (and probably most-often found in schematics) 2N3904 and 2N3906 NPN/PNP pair. I also use the TIP120 power darlington a lot, but only because I have bunches from an acquisition. Keep lots of 10µF 25v aluminum electrolytics on hand as well as a few billion 0.01µF and 0.1µF ceramic types, all for bulk capacitance.

In general, rather than stock up on bunches of what everyone else thinks you need, just order more of what's actually required for a project and slowly build up your stock. Harvesting used parts from a circuit board is a good idea, but buying 40 assorted values of a type of part can be very wasteful. You're better off putting your money to better use on what you know you need now.

Dean

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1st July 2008, 03:53 PM	#1
AtomSoft	What Components do you use? Hey im trying to get a nice little setup going for future projects. Im not rich so i wanted to know if some of the people on the forum can give me some sort of listing of commonly used components and there values. This can include but is not limited to: Resistors Capacitors Switches (tactile types pushbutton) Relays (solid or not) Triacs Transistors (value as 2n2222 or something) Common uCs (PIC or ATMEL any or) Common ICs ( bridges, 555s, 485s, 232s etc) Parts like Sockets and there different types Leds (3mm or 5mm or quare) conductors connectors like polarized and non-polarized plain Crystals or Oscillators or resonators You dont have to know about all but info on whats commonly used on at least 1 part from above would be nice. Like what are the most commonly used resistor values? 1k, 22k, 4.7k etc... Thanks again. I know it actually depends on the project you are working on but whenever i seem to start a project i tend to stray... nay add something to it. I would just like to be prepared and not have to order 1 thing at a time only and wait like 1 month to finish 1 project. I have no local sources for these parts that can even compare to the online prices and availability and selection. So any help would be GREATLY! appreciated. __________________ AtomSofts eBay Store AtomSoftTech: C18 TIPS & TRICKS v9 PDF Nokia 6100 Driver/Software My Name: Jason Lopez http://atomsofttech.info/ \| My YouTube Videos! My Favorite Store: dipmicro Electronics

1st July 2008, 03:56 PM	#2
3v0	This question is asked and answered on a regular basis. The last good thread I recall was started by Krunlink. I for resistors I suggest getting an assortment from the people on EBAY. For digital work you do not need a wide variety of caps. If you plan to do much analog work then get an asortment of the types you tend to use. To figure out what you want/need look at projects of the sort that you might want to build. __________________ Please post questions to the forums. PM's are for personal communication. BCHS/3v0's Tutorials Junebug USB PIC programmer kit., USB Bit Whacker, The 15 Minute Printed Circuit Board! (+drill time) Last edited by 3v0; 1st July 2008 at 04:00 PM.

1st July 2008, 03:56 PM	#3
Pommie	Breadboards and voltage regs. Mike.

1st July 2008, 04:06 PM	#4
3v0	When I started I purchased two ceramic osc in the most common freqs. Mosty 2 MHz steps from 4 to 20. They are great for breadboarding or if your app does not require an exact clock you use one part instead of three. They are good enough for communication but not good enough to generate video signals. Most modern PICs have internal oscs so they are not as useful as they once where. I stock the common crystals and required caps. __________________ Please post questions to the forums. PM's are for personal communication. BCHS/3v0's Tutorials Junebug USB PIC programmer kit., USB Bit Whacker, The 15 Minute Printed Circuit Board! (+drill time)

1st July 2008, 04:16 PM	#5
ericgibbs	hi atom, A few low cost OPA's [NOT 741's] , I use the CA3140 single and CA3240 dual opa, they have a reasonable spec and the can go close to zero on the output. Comparators , low cost LM393's. Dont forget a pnp version of the 2N2222 and say a couple of 2N7000 NMOSFET's You have listed leds, but also 7seg leds are handy and also a 4 line * 16 LCD. __________________ Eric " Good enough is Perfect " I will NOT answer PM's requesting technical help, please use the Forum PIC tutorials: Nigel's www.winpicprog.co.uk/ Bill's: www.blueroomelectronics.com/ Last edited by ericgibbs; 1st July 2008 at 04:17 PM.

1st July 2008, 07:18 PM	#7
picbits	I started making a database of all my components. Got to around 20,000 components (individual ones, not individual types) and got bored.

1st July 2008, 07:42 PM	#8
AtomSoft	lol cool tho... Sounds like fun to have that many you should be prepared more or less for many projects. __________________ AtomSofts eBay Store AtomSoftTech: C18 TIPS & TRICKS v9 PDF Nokia 6100 Driver/Software My Name: Jason Lopez http://atomsofttech.info/ \| My YouTube Videos! My Favorite Store: dipmicro Electronics

2nd July 2008, 02:56 AM	#14
AtomSoft	yeah i know some MySQL im using it on my personal web server along side php. I guess i could setup a database with some tables with common information im going to need on parts... ex: Table: Resistance Fields: Autoid Type: Metal / carbon / pot etc / network Resistance: in ohms and have it calculated through php Tolerance Quantity Something like that and just make a nice page for adding parts (just like i did for my site) and make a nice page for viewing with a search engine and categories. I bet it will take me only like 2 hrs to make it i love PHP/MySQL so simple to work with. __________________ AtomSofts eBay Store AtomSoftTech: C18 TIPS & TRICKS v9 PDF Nokia 6100 Driver/Software My Name: Jason Lopez http://atomsofttech.info/ \| My YouTube Videos! My Favorite Store: dipmicro Electronics Last edited by AtomSoft; 2nd July 2008 at 02:58 AM.

2nd July 2008, 05:09 AM	#15
Dean Huster	For the transistors, I prefer the very common (and probably most-often found in schematics) 2N3904 and 2N3906 NPN/PNP pair. I also use the TIP120 power darlington a lot, but only because I have bunches from an acquisition. Keep lots of 10µF 25v aluminum electrolytics on hand as well as a few billion 0.01µF and 0.1µF ceramic types, all for bulk capacitance. In general, rather than stock up on bunches of what everyone else thinks you need, just order more of what's actually required for a project and slowly build up your stock. Harvesting used parts from a circuit board is a good idea, but buying 40 assorted values of a type of part can be very wasteful. You're better off putting your money to better use on what you know you need now. Dean __________________ Dean Huster, Electronics Curmudgeon Contributing Editor emeritus, "Q & A", of the former "Poptronics" magazine (formerly "Popular Electronics" and "Electronics Now" magazines). R.I.P.