Author Topic: Assorted Resistor Kit (Read 11615 times)

DW1961 · « **on:** May 24, 2021, 07:37:06 pm »

I've been ask when testing things "use a resistor" a few times, but I don't have any and I wouldn't know which to buy for a "general assortment." I have the chance to get free a couple different assortments of resistors, but not all of them. Which one looks like the better choice? I'm assuming the 1-4W option would be better than the others that are all 1/4W?

(1) https://www.amazon.com/dp/B08NY3XR96

(2) https://www.amazon.com/dp/B08PF3HNMD

(3) https://www.amazon.com/dp/B08VGQ6LBH

(4) https://www.amazon.com/dp/B08YWYBZ3P (1-4W option)

These are also available:

Diode:
https://www.amazon.com/dp/B08VDH8H35

Transistors:
https://www.amazon.com/dp/B088FTKCGK

RichC · « **Reply #1 on:** May 24, 2021, 09:49:37 pm »

Those are all 1/4W kits, they have just added spaces for some reason in one of the listings.
I don't think it will make much difference which you buy from a quality perspective.

Renate · « **Reply #2 on:** May 24, 2021, 10:27:26 pm »

Consider 1/8 W resistors. I mostly use them nowadays for through-hole.
Consider a typical highest power use on a µC.
5V supply, 2.5V LED, 470Ω, 5mA = 13 mW
I'd trust an 1/8 W to that.

ledtester · « **Reply #3 on:** May 24, 2021, 11:25:38 pm »

Get carbon film resistors because they have that classic resistor look!

Ok, they are only 5%, but that shouldn't matter too much. And 4-band resistors are easier to read.

DW1961 · « **Reply #4 on:** May 25, 2021, 12:22:48 am »

Quote from: RichC on May 24, 2021, 09:49:37 pm

Those are all 1/4W kits, they have just added spaces for some reason in one of the listings.
I don't think it will make much difference which you buy from a quality perspective.

I must be losing it. i thought I saw 1 - 4 W not 1 / 4 W on the one I marked. Sheesh.

DW1961 · « **Reply #5 on:** May 25, 2021, 12:25:19 am »

Quote from: edavid on May 24, 2021, 11:42:23 pm

Quote from: ledtester on May 24, 2021, 11:25:38 pm
Get carbon film resistors because they have that classic resistor look!

Ok, they are only 5%, but that shouldn't matter too much. And 4-band resistors are easier to read.

The values of these generic Chinese resistors should always be checked before use - they are mostly marked correctly, but once in a while you get one that is way off.

Hey edavid,
I would never use them if I were building something of value. I'm just going to use them to add resistance to things I need to test, via requests here. I just don't have any at all.

ledtester · « **Reply #6 on:** May 25, 2021, 01:48:56 am »

Another thing about the 1% resistors you find on aliexpress/ebay/Banggood ...

Too good to be true: Banggood's 3000pcs 30 kinds 1% 1/4W resistor deal
https://youtu.be/oL71C68AVEM

Everything is summarized in the description if you don't want to watch the entire video.

SmallCog · « **Reply #7 on:** May 25, 2021, 02:20:28 am »

As well as an assortment of resistors, grab a couple of pots and solder some wires with either dupont pins or aligator clips to them

Handy for when you don't have the value you need or want the convenience of turning a knob til it "works"

SpecialK · « **Reply #8 on:** May 25, 2021, 02:31:58 am »

Quote from: ledtester on May 24, 2021, 11:25:38 pm

Get carbon film resistors because they have that classic resistor look!

Ok, they are only 5%, but that shouldn't matter too much. And 4-band resistors are easier to read. (Attachment Link)

I was thinking the same thing myself. As I approach 50 years old, I really don't enjoy looking at the five colour bands on 1/4W metal film resistors. Plus the leads are too thin for reliable breadboard connections. I tend to use the 1W carbon film resistors for breadboarding.

rfclown · « **Reply #9 on:** May 25, 2021, 02:45:49 am »

My 2 cents.

*IF* you are using solderless breadboards, some of those resistor kits have parts with really thin leads which don't make good contact in the sockets. For solderless breadboards, I want to use the older style 5% 1/4 watt with thicker leads.

Secondly, the 1% color ring coding is not easy to read. Again, I like the older 5% style. I can have the resistors in a pile on my bench and easily spot the 1k, 10k, 3.3k, 22k etc. With the 1% type, I have no idea and have to measure them.

For most stuff, 1% isn't needed. I do have 1% and 5% kits, but for the reasons I mentioned, I only use the 1% when there is a need (which isn't often). For SMT resistors, neither of my complaints with the 1% leaded kits apply, and I get 1% kits.

For the common 10x values: 10, 100, 1k, 10k (and similarly capacitors 10uF, 1uF, 0.1uf, 0.01uF, 0.001uF) I just buy 100 of each from Digikey or Mouser. (for SMT I might buy 250 of each)

DW1961 · « **Reply #10 on:** May 25, 2021, 03:11:04 am »

Quote from: SpecialK on May 25, 2021, 02:31:58 am

Quote from: ledtester on May 24, 2021, 11:25:38 pm
Get carbon film resistors because they have that classic resistor look!

Ok, they are only 5%, but that shouldn't matter too much. And 4-band resistors are easier to read. (Attachment Link)

I was thinking the same thing myself. As I approach 50 years old, I really don't enjoy looking at the five colour bands on 1/4W metal film resistors. Plus the leads are too thin for reliable breadboard connections. I tend to use the 1W carbon film resistors for breadboarding.

So skip the 1/4 watt and go for 1W?

SpecialK · « **Reply #11 on:** May 25, 2021, 03:47:06 am »

Quote from: DW1961 on May 25, 2021, 03:11:04 am

So skip the 1/4 watt and go for 1W?

I have 1W carbon film assortment that I use for restoring old radios. The body is kind of large which easy to read but maybe a little clumsy/cluttered if your circuits are a little more complex.

https://www.justradios.com/reskits.html#kit9B

So they serve double duty.

bobbydazzler · « **Reply #12 on:** May 25, 2021, 04:14:18 am »

Depends if you want to use them on a solderless breadboard, if you are I would try to get at least 1/2w metal film resistors or maybe 1/4w carbon(the 1/4w carbon resistors I have have thick enough leads). If you're going to use for soldering to perfboard etc I would also consider 1/8w resistors for their smaller footprint.
I think metal film are in general better than carbon for a few reasons - they're smaller for equal power ratings, they're cheaper for me, they have higher temperature tolerance. Though I do like the old timey appearance of carbon film resistors which is why I have them as well.

Anthocyanina · « **Reply #13 on:** May 25, 2021, 04:20:42 am »

I've gotten a few of the bojack resistors and inductor kits and like them because each value is packed in a marked ziplock bag and they have all been correctly marked. i like this one cause it comes with 25 resistors for most values and 50 resistors for the most commonly used ones. https://www.amazon.com/BOJACK-Resistor-Ohm-5-6M-Resistors-Assortment/dp/B07P3MFG5D/ but the quality of the resistors i'm sure is the same as that of any other kits you can find, they do come with thin leads, but i haven't had much trouble using them in breadboards or the ocasional not super important project. If you can only get one of the kits you linked, i would go with one with the most values and amount of resistors per value, the loreso branded one you linked would be the one i get from those you linked, it has each value in bags, has 25 of each, and it's 38 values, it sounds convenient enough.

Old Printer · « **Reply #14 on:** May 25, 2021, 12:56:52 pm »

Recently I needed some 1% resistors for a project, and was surprised to see that Amazon had them in lots of 100 for the same price as Mouser. With my Prime membership there was no shipping cost and they would be here the next day. So I took a chance. Everything turned out to be true, except the 1% part, not even close. I only needed 4 at that tolerance so I just measured a bunch of them and got 4 within the first 30 or so I tested. Many were between 5 & 10%. So in the end, no big deal, but certainly not as advertised. When it comes to actives, or passives that I cannot accurately measure, I always go with brand names from a reliable source like Mouser or DigiKey.

Zero999 · « **Reply #15 on:** May 25, 2021, 01:13:36 pm »

I personally won't touch 5% tolerance resistors. Even though they're find for most applications, 1% isn't more expensive and genrally has lower noise. If you find the colour code difficult, 1% resistors are available with the old four band code.

HB9EVI · « **Reply #16 on:** May 25, 2021, 01:32:25 pm »

go for metal film 1% tolerance; sooner or later you want the lower tolerance for a certain circuit
so far I had no negative experience with the metal film Rs from China; a while ago I bought some to complete my E24 repositories; E12 was already complete

maybe consider an assorted box with 0805 SMD resistors too; basically I use nothing but SMD Rs and Cs on my through-hole solder boards; it's just comes in handier

rstofer · « **Reply #17 on:** May 25, 2021, 02:02:23 pm »

I have the resistor kit from Jameco and I have been using it for probably 20 years. I replenish the values I use by purchasing multiples of 100 from DigiKey. It's just handy having resistors around. I can't imagine not begin able to just grab some out of the cabinet.

https://www.jameco.com/z/00081832-Jameco-Valuepro-540-Piece-1-4-Watt-5-Carbon-Film-Resistor-Component-Kit_81832.html

I also have the Capacitor kit and the Electrolytic Capacitor kit. Most of the costs for these kits are for the cabinet but so be it. I'll depreciate the cost over the last 20 years.

https://www.jameco.com/z/81867-Jameco-Valuepro-240-Piece-Radial-Capacitor-Component-Kit_81867.html

https://www.jameco.com/z/81859-Jameco-Valuepro-520-PIECE-CERAMIC-DISC-CAPACITOR-COMPONENT-KIT_81859.html

The capacitor kits seem expensive, I might not do that today but they sure are handy to have around.

OTOH, maybe I should add the transistor kit at some point:

https://www.jameco.com/z/TRANSISTOR-KIT-Jameco-Valuepro-560-Piece-Transistor-Component-Kit_82595.html

I don't even bother trying to read the color bands on small resistors. I have a DMM for that.

Sooner or later, it becomes imperative to have some kind of storage cabinet. There are many around and the Jameco cabinets are at the upper end of construction and price but I like them.

Electro Fan · « **Reply #18 on:** May 25, 2021, 02:03:47 pm »

The Jameco cabinet boxing looks good.

Joe Knows Resistors on Amazon is a little more expensive than some of the low cost alternatives but the way the nice quality bags with labels are stacked (vertically instead of horizontally) for easy storage/retrieval filing in the box like index cards plus the reasonable quality of the resistors makes them worth consideration.

rstofer · « **Reply #19 on:** May 25, 2021, 02:04:21 pm »

Dave sells a very nice envelope scheme for storing SMDs on strips:

https://www.eevblog.com/product/usleeve/

Old Printer · « **Reply #20 on:** May 25, 2021, 04:34:12 pm »

MP Jones is an electronics dealer in south Florida that sell mostly off-brand import type components. They have a variety of resistor, capacitor, inductor, transistor/ic type assortments that go on sale on a regular basis. I have used them over the years to build a stock of jellybean type components at good prices. Every Thursday they have an email sale flyer with prices good for a week. I am learning hobby level electronics at the University of YouTube, All About Circuits etc, and not having the generic components to put together an instructional circuit is very frustrating. It took a while, but after a couple years I can now build almost any basic instructional circuit I come across from parts I have on hand. Amazon is becoming a surprising well stocked electronics supplier as well, if you have Prime, but you have to watch their prices on some things.

https://mpja.us9.list-manage.com/track/click?u=2b09559a01d02ecc913387081&id=56e8771a8f&e=018c95bb51

DW1961 · « **Reply #21 on:** May 25, 2021, 05:56:41 pm »

Thanks for all of the input.

Two of the options were already unavailable. I went with the LORESO option that Anthocyanina recommended.
https://www.amazon.com/dp/B08NY3XR96

These were also more expensive, but a reviewer said he spot tested many of the resistors and they were well within tolerance.

MathWizard · « **Reply #22 on:** May 26, 2021, 07:09:57 pm »

Where do people actually buy resistor kits, besides ebay/amazon ? Do Mouser/etc sell kit's or is it all choose yourself ?

The last batch of resistor I bought fro ebay ages ago, was marked 1% , but were only 5%....I should have reported it.

Last time I was looking for SMD resistor booklets, they were insanely expensive. I couldn't believe it.

tooki · « **Reply #23 on:** May 26, 2021, 07:25:45 pm »

Quote from: DW1961 on May 25, 2021, 05:56:41 pm

Thanks for all of the input.

Two of the options were already unavailable. I went with the LORESO option that Anthocyanina recommended.
https://www.amazon.com/dp/B08NY3XR96

These were also more expensive, but a reviewer said he spot tested many of the resistors and they were well within tolerance.

I got an assortment off eBay a few years back. No problems whatsoever with tolerance, but the thin leads are maddening as fuck.

Now that I live a 5 min walk from the only electronics parts shop in the city (heck, it’s probably the last mom-and-pop electronics shop in the country…), I just buy real ones as needed. Standard values I stock up from Digi-Key, etc.

Grandchuck · « **Reply #24 on:** May 26, 2021, 09:21:56 pm »

Quote from: MathWizard on May 26, 2021, 07:09:57 pm

Where do people actually buy resistor kits, besides ebay/amazon ? Do Mouser/etc sell kit's or is it all choose yourself ?

The last batch of resistor I bought fro ebay ages ago, was marked 1% , but were only 5%....I should have reported it.

Last time I was looking for SMD resistor booklets, they were insanely expensive. I couldn't believe it.

https://www.digikey.com/en/products/filter/resistor-kits/653?s=N4IgTCBcDaIE4FMDOBLJAXA9nABAQySW3QFsEA7dEAXQF8g


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Author Topic: Assorted Resistor Kit (Read 11615 times)

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