Questions tagged [cables]
Questions about cable types, properties, ratings and construction.
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What is the best antenna and cable for my project?
I am building radio controlled small submarine which includes 1 ESP32 CAM Module inside with external antenna. I would have a remote controller on my hands which also contains some microcontroller ...
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4
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611
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Why does the voltage double at the end of line in a open transmission line (physical explanation)
I'm seaching a way to explain physically what happens in a wave reflection in a transmission line, if we apply a DC voltage in a open circuit transmission line, the voltage at the doubled.
I saw this ...
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Suggest appropriate substitute for cable glands
I have a 3.3 mm cable coming from a sensor (3.3 V) and going to an instrument.
I would not like any joints in the path in the form of connectors which could make problems for the sensor if the ...
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1
answer
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How to connect heaters and RTD sensors from an EMC perspective
I have a PCB that drives an external system with simple resistance heaters and Resistance Temperature Detector (RTD) sensors for temperature readings placed close to them. The PCB includes a typical ...
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3
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Shield termination techniques on military-style connectors
References such as PT06A-10-6S (see image bellow) are military-style connectors. I would like to connect my cable's foil and braid shielding to the chassis ground of my connector pannel via the PT06A ...
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Choosing a durable 4 wire connection coming from the edge of a cylinder [closed]
I am making a set of electronic bagpipes, and i need to connect the PCB holding the optical sensors for the fingers to a synthesizer board through a cable of a couple of meters. For the moment i haven'...
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1
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What is the appropriate VCC to apply to a Schmitt trigger?
I would like to transport a SPI signal over 1 meter, at a 10 MHz clock rate, with each SPI wire twisted with a ground wire, no differential signal, 33 Ohms terminations, ESD protection with chip ...
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Cable current ratings
Which of these current ratings is used as the standard current ratings for cable:
Cyclic, Sustained or Distribution.
For example;
A 630mm2 Cu cable (dry XLPE type) has a "Winter SUSTAINED Current ...
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Cable type selection for 128 channel signal transfer [closed]
I want to use a cable to be connected (soldered) to my PCB, my PCB has 128 pads on it as follows:
The signal that will be transfer to cable is @3 MHz to 6 MHZ, in range of 150 uA.
The width of the ...
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3
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Can an FFC cable be fold to make a 90° angle?
I'm talking about a standard flexible FFC cable, like this one as example.
I need to make a planar 90 degrees angle: the connectors are on the same PCB but rotated of a right angle.
I tried with a ...
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1
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Mobile Power Distribution Unit: Mains Cable Size
I'm currently working on constructing a mobile power distribution unit and I need some assistance with a specific aspect of it.
The unit is designed to accommodate both types of power networks found ...
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Wire size for 64 VDC starter
I volunteer for a organization that is restoring a tugboat. The starter motor cables for the main diesel engine need replaced as the insulation is no longer in good condition.
The old cable had ...
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What is the meaning of a 28k pull-up resistor in an USB A-to-C cable?
Since that debacle a few years ago, I assembled a small test harness where I plug every new A-to-C cable that I get to check for the 56k pull-up resistor between CC and Vin and toss out the ones that ...
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2
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Cable current rating for high frequency applications
I am looking for power cables for high-speed motors, with frequencies up to 700Hz. All the tables that I find online are referred to 50/60Hz applications. I am not able to find derating factors ...
2
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1
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My HDMI cable is outputting constant current, is that normal?
I bought two cheap monitors in a local shop. They are basically the same model, and both came with an ungrounded external power supply.
After getting a few shocks from the HDMI cable I realized it is ...