Questions tagged [sourcing]
The sourcing tag has no usage guidance.
43
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What is this SMD common mode choke?
A pair of components was accidentally destroyed on my Korg Volca Modular synth:
Through the magic of getting another identical synth, I was able to see how it is supposed to be on a working unit:
...
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7
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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 ...
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3
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"Source", "sink" or both?
Having solved the mystery of "pulling" and "pushing" devices, it would be interesting to do the same with "sourcing" and "sinking" devices.
Background
A ...
- 17.5k
39
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9
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4k
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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, ...
- 14.7k
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Least amount of parts to switch a resistive load [closed]
Excuse me for not being able to provide a schematic right now as I’m on mobile but my question is fairly straightforward.
I’m trying to drive a bunch of resistive loads fairly quickly in a constrained ...
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1
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390
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Will this optocoupler circuit work for sensor and DC motor?
I am working on a project in which I need to operate a DC motor and some ultrasonic sensors.
I want to operate the motor using motor driver DRV 8871 by giving logic signals and read sensor value on ...
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1
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69
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Can't secure supply of 32mhz Automotive grade oscillator - why is this?
This is my first automotive PCB. I designed in a high temp crystal from Digikey. Stock then went to 0 with big lead times, and then my alternate went EOL. I then spun the board with a TCXO. All three ...
- 2,496
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2
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514
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How to find a Pin-to-Pin Replacement for TL-081, but with higher VCC? [closed]
After ordering and assembling one of those¹ "red" 0-30V/0-3A power supplies from eBay/AliExpress and taking a bit of a closer look at it, I'd like to replace the TL081CP op-amps. It's ...
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234
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Sourcing Transformer with Specific Turns Ratio
I am looking at a building an electronics project that calls for a transformer with a specific turns ratio '1:4:50', and am trying to source a component. I am working on the project from this tutorial:...
- 495
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2
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4k
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Load Cell ADC HX711 Alternatives?
Looking for an HX711 ADC alternative. Sparkfun sells a pricey breakout board with the chip, but I cannot source the IC anywhere online for some reason 🤷♂️. Are there any ADCs out there that have a ...
- 433
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5k
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Where to get a USB type E front panel motherboard header?
I'm designing a product that will need to have USB type C ports on its front panel, and due to physical constraints with the design, I would like to use a USB type E connector in conjunction with a ...
- 372
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0
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499
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Fixing or finding a replacement for a Potentiometer
I am trying to do a little home repair on an older set of CH Pro Rudder Pedals. These are a 3-axis USB game controller, and I have isolated the problem to one of the potentiometers in the right break ...
- 135
2
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1
answer
448
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What does DS18B20 stand for?
We are looking to purchase DS18B20 temperature sensors from a supplier who claims to manufacture them themselves - but I cannot work out if DS18B20 is a product name for Dallas instruments (i.e. ...
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3k
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Matching sensor output with PLC input
I am trying to add a height captor for a line of my production where I work. I found this Banner captor (QS30LLPQ) and it has 2 bipolar discrete outputs (PNP and NPN). Now, I am trying to decide which ...
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1
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Rotary Encoder - Power Source for small Fork Light Barriers with NI 9401 [closed]
Task
In order to measure the angle and calculate the angular velocity and acceleration of a large metal wheel with a rotational frequency \$f = 0.01 \ldots 1.00~Hz\$, I try to build a custom rotary ...
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