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| Purchasing parts and basic components for a new lab |
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| AnyNameWillDo:
Link to my first thread about equipment: https://www.eevblog.com/forum/beginners/my-purchase-list-for-my-new-lab-budget-$1000-thoughts/ Posting what components I am looking at today and could use some advice. I've included pictures in case those are easier to read (I know the text can get dense). The parts I am focusing on are more the actual pieces that are used on the board, connectors, leads, protoboards, wire, etc, things I have not yet purchased. Thought it would be easier to make a new thread since the focus is quite different. Here is what I've looked into getting so far: Resistors: 30 values, 300 pieces total, 1/4W, 1% metal. Values (10 of each): 10Ω、22Ω、 47Ω、100Ω、150Ω、200Ω、220Ω、270Ω、330Ω, 470Ω、510Ω、680Ω、1KΩ、2KΩ、2.2KΩ、3.3KΩ、4.7KΩ、5.1KΩ、6.8KΩ, 10KΩ、20KΩ、47KΩ、51KΩ、68KΩ、100KΩ、220KΩ、300KΩ、470KΩ、680KΩ、1MΩ Values (picture instead) https://www.ebay.com/itm/112341051881 (3 packs of the above) 64 values, 1280 pieces total, 1/4W, 1% metal Values (20 of each), picture: https://www.ebay.com/itm/261374861457 (1 pack) Ceramic Capacitors: 50 values, total 1000 pieces Values (20 of each): 1 pf (1), 2 pf (2), 3 pf (3), 4 pf (4), 5 pf (5), 6pf (6), 7pf (7), 8pf (8), 9pf (9), 10pf (10), 15pf (15), 18pf (18), 20pf (20), 22pf (22), 27pf (27), 30pf (30), 33pf (33), 40pf (40), 47pf (47), 50pf (50), 56pf (56), 68pf (68), 82pf (82), 100pf (101), 120pf (121), 140pf (141), 150pf (151), 180pf (181), 220pf (221), 300pf (301), 330pf (331), 470pf (471), 560pf (561), 680pf (681), 820pf (821), 1nF (102), 1.5nf (152), 2nf (202), 2.2nf (222), 3.3nf (332), 4.7nf (472), 6.8nf (682), 10nf (103), 15nf (153), 20nf (203), 22nf (223), 33nf (333), 47nf (473), 68nf (683), 100nf (104) Values (picture instead) https://www.ebay.com/itm/122542633519 (1 pack) Electrolytic Capacitors: 25 values, 125 pieces total Values (5 of each): 16V/47uF, 16V/100uF, 16V/220uF, 16V/470uF, 16V/1000uF, 25V/10uF, 25V/47uF, 25V/100uF, 25V/220uF, 25V/330uF, 25V/470u, 25V/1000uF, 25V/2200uF, 50V/1uF 50V/3.3uF, 50V/4.7uF, 50V/6.8uF, 50V/10uF, 50V/33uF, 50V/47uF, 50V/100uF, 50V/220uF, 50V/330uF, 50V/470uF, 50V/1000uF Values (picture instead): https://www.ebay.com/itm/152015420230 (1 pack) Polyester/Film Capacitors: 18 values, 180 pieces total Values (10 of each): 2A471J, 2A102J, 2A152J, 2A182J, 2A222J, 2A332J, 2A472J, 2A562J, 2A682J, 2A103J, 2A153J, 2A223J, 2A333J, 2A473J, 2A563J, 2A683J, 2A104J, 2A224J https://www.aliexpress.com/item/-/32857807794.html (1 pack) Diodes: 14 values, 200 pieces total Values: Rectifier Diode: 20 * 1N4001 (1A 50V), 20 * 1N4004 (1A 400V), 20 * 1N4007 (1A 1000V), 10 * RL207 (2A 1000V), 10 * 1N5404 (3A 400V), 10 * 1N5406 (3A 600V), 10 * 1N5408 (3A 1000V) Fast Recovery Diode: 10 * UF4007 (1A 1000V), 10 * FR107 (1A 1000V), 10 * FR207 (2A 1000V) Switching Diodes: 30 * 1N4148 (200mA 100V) Schottky Diodes: 10 * 1N5817 (1A 20V), 20 * 1N5819 (1A 40V), 10 * 1N5822 (3A 40V) Values (picture instead): https://www.ebay.com/itm/273315944592 (1 pack) LEDs: 5 colors (red yellow green blue white), 2 sizes, 150 pieces total (3V, 20mA) (Basically 15 of each) For red, yellow, green, 3mm and 5mm, it is 2V, 20mA, forward voltage 2 - 2.2V. For blue, white, 3mm and 5mm, it is 3V, 20mA, forward voltage 3 - 3.2V. https://www.ebay.com/itm/391368927437 (1 pack) Transistors: 15 value 600pcs Transistor TO-92 Assortment NPN PNP DIY kit Picture / Values: https://www.ebay.com/itm/222509491667 (1 pack...?) Male to Male Breadboard Wires: 65 pieces total Values: Wire Length (include pin part): 24CM (4PCS), 20CM (4PCS), 16CM (8PCS), 12CM (49PCS) https://www.aliexpress.com/item/High-Quality-65pcs-Male-To-Male-Breadboard-Wires-Jumper-Cable-Bread-Board-Wires/32800860317.html (3 packs...?) Protoboards: Really unsure what's good here, but I see this on Amazon: AUSTOR 36 Pieces Double Sided PCB Board Prototype Kit, 5 Sizes Universal Printed Circuit Protoboard with Free Box, for DIY Soldering and Electronic Project https://www.amazon.com/AUSTOR-Prototype-Universal-Protoboard-Electronic/dp/B074X2GDH2 ******************* Anyway this is as far as I've gotten today in terms of researching various components... I'd really appreciate any feedback. Should I get different components on any of these? Am I missing any crucial things? Should I get additional packs of any of these? Are there other components / items I should get? I haven't even looked at things like logic chips, MOSFETS (nor do I know if the transistors I have are BJT or FET... not sure what all these different categories mean yet), wire, clamps, leads, opamps(?), zener diodes(?), other things?, etc. Any guidance or advice is much appreciated. Thanks. |
| HB9EVI:
for the diodes you don't need from the same type different voltage ratings; just get a bunch of the highest rated 1N4007, 1N5408 a.s.o. the same goes for the schottky, and the 1N4148 is the general propose low power diode for every lab |
| sokoloff:
Transistors are BJT (NPN and PNP are BJTs; FETs will be N-channel or P-channel). That's a decent assortment. (Concur with HB9 on the diodes.) You're also going to have to get used to buying parts from US distributors if you're in any kind of a hurry. We have the luxury of having several good distributors who can ship parts often 1-2 days for reasonable prices, so don't go nuts trying to have every single part, even jellybean parts, on hand when you decide to start some project. Get somewhat used to buying parts for upcoming projects; anything else and your hobby will become "electronics part curator" rather than "electronics". I'd get more and different breadboard wires, specifically of the "Dupont" type. Get a mix of MM, MF, and FF. https://www.aliexpress.com/item/Free-shipping-Dupont-line-120pcs-20cm-male-to-male-male-to-female-and-female-to-female/1899750504.html I'd also splurge for the "good" breadboards. This is not a place to go cheap, IMO. 3M is a good brand. 3M's breadboards are actually made by Assembly Specialist, who also sell their own brand far cheaper than 3M brand. |
| AnyNameWillDo:
Breadboards I already bought some (as opposed to protoboards which I still have not), from here: https://www.ebay.com/itm/Solderless-MB-102-MB102-Breadboard-830-Tie-Point-PCB-BreadBoard-For-Arduino/170884671651 I did consider 3M ones but they were wayyyyyy more expensive than the cheapies so I balked at the time; I might get one if I find the cheapies are crap. --- Quote from: HB9EVI on July 24, 2018, 07:34:18 pm ---for the diodes you don't need from the same type different voltage ratings; just get a bunch of the highest rated 1N4007, 1N5408 a.s.o. the same goes for the schottky, and the 1N4148 is the general propose low power diode for every lab --- End quote --- I'm not sure I understand, since this pack comes with a variety and includes the one you're mentioning -- or are you saying most of these diodes are useless? Is there a better pack somewhere that has the more common ones? (most of the packs I am coming across just span the same general variety). Do you usually have to buy these individually/separately? --- Quote from: sokoloff on July 24, 2018, 07:37:06 pm ---I'd get more and different breadboard wires, specifically of the "Dupont" type. Get a mix of MM, MF, and FF. https://www.aliexpress.com/item/Free-shipping-Dupont-line-120pcs-20cm-male-to-male-male-to-female-and-female-to-female/1899750504.html --- End quote --- Nice! I had been looking for something like this (unsuccessfully). I guess I need to get better at knowing what to search for. How many are worth picking up? 3 packs? |
| sokoloff:
Start with minimum one 40-pack of each type. They're so cheap that you might get them in 10 and 20cm lengths. If you're doing a lot of module work with headers on the modules, it's worth getting an assortment of Dupont plastic headers. You can use the Dupont cables above, un-pin the single female connectors, and push the cables into multi-way female connectors. (You can do the same for males as well, but it's less common to need that.) This allows you to have more stable connections to the modules, as well as (nearly) eliminating the mis-cabling possibility. https://www.aliexpress.com/item/620Pcs-Dupont-Connector-2-54mm-Dupont-Cable-Jumper-Wire-Pin-Header-Housing-Kit-Male-Crimp-Pins/32884911697.html? |
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