Questions tagged [specifications]

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9
votes
1answer
4k views

What are the differences between optoisolator output styles?

Digikey lists optoisolators with several output types: Darlington Darlington with base Photo FET Photovoltaic Photovoltaic, linearized Transistor Transistor, with base What are the differences among ...
-6
votes
2answers
1k views

Can you safely exceed the nominal voltage of a supercapacitor?

From what I found the data sheets usually only specify the nominal voltage, not Absolute Maximum Value or similar. I need to use supercapacitors for a project where they will run for a total of ~20 ...
7
votes
2answers
10k views

Transformer labeled 120v-60hz-35va-12v - What exactly does it do?

I have a pool light whose bulb physically broke, but I've found a way to open the water-tight bulb enclosure to get at the actual bulb. I'm trying to either hunt down a replacement bulb (rather than ...
7
votes
1answer
5k views

Aside from cost, is there any disadvantage to using thicker wire than required?

Say I've calculated the minimum wire gauge necessary to give me an acceptable voltage drop over my length of cable run at the voltage and current my application will use. Are there any disadvantages ...
4
votes
1answer
993 views

What is the usable area (for connectors) of a PCI Express card bracket?

I have a number of awkwardly shaped connectors that I need to cram into a single PCI Express slot metal bracket without any of them colliding with the host PC case's metalwork. The connectors are a ...
1
vote
2answers
520 views

Peltier Module/TEG specs explainantion

I am looking for a Peltier module/TEG to power wearables and I'm not quite sure what specs I need or should be looking at. To be honest I am not quite sure what some of the specs even me. Essentially ...
1
vote
3answers
1k views

Any information on BLS, BLD, HU, etc connectors

There are a few similar types of connectors: BLS, BLD, HU, PHU. They are frequently encountered in electronic devices, but I couldn't find any information on them. Google only finds a bunch of places ...
0
votes
1answer
64 views

Component ID: AA3 03

I'm trying to identify a fault on a printed circuit board in a consumer product. So I tried to find a pin-out diagram, specifications, etc. for this surface mount component designated AA3 03: There ...
0
votes
1answer
725 views

How can I tell the full spec of my step motor just by looking ati it?

I have a retro CNC machine (EMCO F1P) in my garage that I am currently tinkering with. I would like to replace the old motor control but use the existing step motors. Unfortunately the documentation ...