Questions tagged [sourcing]
The sourcing tag has no usage guidance.
43
questions
39
votes
9
answers
4k
views
Parts shortage, no stock, what now? (canonical reference question)
As a small business, student, or hobbyist, sometimes the parts I need are unavailable (no stock anywhere). Maybe authorized distributor will take order but they will not ship for 10, 20, 30 weeks, ...
- 14.9k
21
votes
6
answers
13k
views
current sourcing, current sinking
I'm a student studying electronics and I'm having trouble understanding the concept behind current sourcing and current sinking. We've covered it in a lab using a 7404 and an LED and all that. Just ...
- 211
17
votes
6
answers
913
views
How can I evaluate or speculate on a part's production lifetime for long term part sourcing?
Suppose I have an idea for a product, where if it were successful, would be in production for 5-10 years. How can I make decisions on what parts to use now such that they will still be available to ...
- 4,258
15
votes
4
answers
501
views
What to expect when sourcing parts
I know about SparkFun.com, but their product line is limited to general appeal for the average hobbyist. I appreciate them for that. But when I want a specialized component, I'm not sure if vendors ...
- 225
12
votes
8
answers
53k
views
Sinking and sourcing current
I have been reading that NPN transistors are sinking and PNP are sourcing devices. I do not really understand this concept. It says current source device connects load to Vcc and current sinking ...
- 153
9
votes
2
answers
2k
views
How to redesign a circuit to use a current sinking IC rather than a current sourcing IC
I'm building a serial servo controller to learn about electronics and assembly language as part of my hexapod robot project. Quite early on I decided that I needed more I/O channels than my ATTiny2313 ...
- 1,078
7
votes
4
answers
2k
views
Who is the main manufacturer of jelly bean parts?
Why do some parts like opamps and mosfets of different companies have same part number but they just change the initial letters. Does it mean that these are actually manufactured by just one company ...
7
votes
4
answers
2k
views
Export restrictions when sourcing parts for PCB assembly in foreign country
If a company has a PCB design and wishes to assemble them economically, a natural choice is China. Some Chinese companies are asking for the parts (or some of them) to be shipped to them. This means ...
- 8,529
7
votes
6
answers
5k
views
Where can I source extra long headers from [closed]
I have recently purchased a sparkfun protoboard that I wish to stack above an ethernet shield. (I have 2 different ethernet shields, an Arduino one and a seeed studio enc28j60 shield.)
The problem I ...
- 235
7
votes
5
answers
520
views
Good motor supplier?
I'm looking to start a few different projects and stock up on some basic components - I was just wondering if anyone knows a good supplier of DC motors, stepper motors and servos?
I'm in vicinity of ...
- 403
7
votes
1
answer
2k
views
Proprietary Kinect connector [closed]
I'm looking for a source for the mating part to the proprietary USB connector on the Kinect, which includes standard USB signalling and power, and also the special 12V supply rail. The cable version ...
- 389
6
votes
3
answers
4k
views
Determining End-Of-Life for electronic components
What is the best way to determine the end-of-life time-line for ICs other than contacting the manufacturer directly? Is there a central registry or service where I can subscribe and get EOL ...
- 465
6
votes
2
answers
4k
views
what kind of tape is used in electronic devices
I repair quite a few devices and one thing that bothers me is that when I remove some of the tape pieces they never go back down right. I was looking for some replacement tape and didn't know what to ...
- 205
5
votes
4
answers
2k
views
Source for flexible, stranded wire
Can someone suggest a source and part number for insulated, stranded small-gauge wire (around 22AWG) that is flexible and doesn't hold its shape? Something along the lines of the wire found on ...
- 2,564
5
votes
4
answers
269
views
Prototype building route
Assume that you have a couple of ideas that you think are good enough to prototype into demonstrable devices. What option would you take and why?
Option 1 - Build everything from scratch including ...
- 718