Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [buying]

Questions seeking recommendations for specific products or places to purchase them are off-topic as they are rarely useful to others and quickly obsolete. Instead, describe your situation and the specific problem you're trying to solve.

44 questions
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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, which is a very long time to wait. If I search on…
MarkU
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5 answers

How to find socket for ThinkPad keyboard ribbon cable connector?

I am looking for a socket which is able to receive the connector of the ThinkPad X41's keyboard ribbon cable. How do I identify the socket so that I can find it on the (German) market? Background: I want to build a custom keyboard controller, to…
feklee
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5 answers

How Do You Decide Between Analog Chip Manufacturers?

I'm an electronics beginner and I find myself often needing to pick an IC for an analog application with no prior knowledge. In the domain of microcontrollers, it's very clear that I should use Atmel AVR since many hobbyists use the…
terrace
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6 answers

Can LabVIEW be used instead of an oscilloscope to measure signals?

I've been thinking about buying an oscilloscope for self usage. However, searching for oscilloscopes on Google reveals that they are very expensive - the cheapest I found was about $200. It turns out, however, that my university provides a license…
Carl
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What does "ku" or "kU" mean with regards to procuring ICs? (not about RF)

NB: This is not referring to RF subject matter. I'm seeing 1ku and 10ku on procurement documentation for purchasing motor driver ICs (TI DRV8811 and some others). Does this mean "one-thousand units"? Sometimes I also see it written as kU (10kU) in…
bento
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4 answers

Are more expensive parts worth it?

The prices of components of supposedly the same type and with the same parameters vary strongly between manufacturers. Assuming my use does not come close to the absolute maximum ratings, is it worth paying extra for more expensive brands, or do the…
Duoran
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2 answers

Doubts related to the Arduino Ethernet with PoE

I implemeted a system by using the Arduino Uno and the Ethernet Shield without PoE. Now, I am thinking to use the Ethernet with PoE but I have following doubts, even if I read the Official Documentation: Is the Ethernet with PoE a Shield? or not?…
Backo
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What does EE10 or EE15 mean for transformer cores?

I have been studying about transformers. When I went to buy some transformer cores from Alibaba for research, I saw different names like EE 15 transformer. What does the EE10 or EE15 transformer code mean? Does that apply to any core?
Hrittickkumar Hazra
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3 answers

IC Price Discrepancies (General Information)

Looking for some insight into what drives IC price discrepancies across suppliers. Espcially comparing places like digikey and mouser to aliexpress For example: I'm looking into buying Maxim Integrated ICs to control LEDs. I've bought some Dot…
Dani
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2 answers

Searching for electronics components in mouser.com

I'm trying to get into electronics and read that mouser is a good place. I wanted to buy a couple of leds, just like this one. But searching for "led" or "simple led" yields pages and pages of results. How do I search for components in this kind of…
mishap
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4
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2 answers

How to buy difficult-to-find electronic parts?

A RF receiver project I'm working on calls for a very specific SAW bandpass filter. I've checked all the usual sources here in the US (Jameco, Mouser, Digikey, Newark, etc) without success. What I'm finding is that the part I'm looking for is highly…
Flier Frog
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4
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Building An E-Ink Wall

The Idea When I heard about Mirasol and Electrowetting the first time, I considered this techniques to be useful for building a wall-hung touch screen where you can show notes, calendarings, drawings and so forth. The advantage would be that you can…
fdj815
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What's the difference between EMSE vs. IMSE when buying components? (Linear Technology parts?)

For example, see this page for buying a LTC3388 step-down regulator, and note the difference between the LTC3388EMSE-1#PBF and LTC3388IMSE-1#PBF. What's the difference? Is this notation specific just to components from Linear Technology? Why is one…
Christina
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Beginner question: what does it mean for a TinyFPGA BX to be sold without pins?

This might come across as a really silly question for some of you, but to give more context - I want to buy a gift for someone else and I have found a TinyFPGA BX, but it says "without pins". What does that mean? As far as I know, pins are quite…
NewToCoding
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"Electromagnet 5kg DC 3V 5V 6V 12V" - what do these multiple voltages mean?

I wanna buy an electromagnet from aliexpress and many of them are lifter magnets and have 6V, 12V, 24V and 5kg. So if i choose the 6V option does that mean the magnet can lift 5kg at 6V? Why would anyone buy the other options then (same price)?
Luka Kostic
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