Questions tagged [reliability]
The reliability tag has no summary.
176 questions
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How reliable using this LED under its rated specs?
I want to control the built in LED of this switch by an MCU GPIO pin which 3.3V. The datasheet of the switch is given here.
Since there is almost no detail but the "Voltage & Rating: 12V @ ...
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How to use the military handbook for reliability prediction of electronic equipment
I want to predict the reliability of the components for which I am using the Military Handbook — Reliability Prediction of Electronic Equipment (MIL-HDBK-217F, 1991, Department of Defense). Is there ...
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PCB dimensions: size and length/width ratio limitations?
I'm currently in the pre-design phase of a rather huge complex PCB.
I'm expecting a size of about 13 * 48 cm (or maybe even 13 * 55 cm), with 14-18 layers (HDI design, but including a few high current ...
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How to perform a simple DIY test for secure electronics enclosure during transport?
This is not directly related to electronics design but I was looking for how one can perform a testing procedure on a built electronic enclosure to check for potential issues during transportation, ...
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Repeaters for transatlantic communications cables
The repeaters for the first transatlantic telephone cable TAT-1 were build with special vacuum tubes developed for that purpose. TAT-1 was in service between 1956 and 1978.
A few years later TAT-2 (...
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Solid polymer electrolytic capacitor storage reliability
I am specifying a solid polymer capacitor (Panasonic 80SXV47M)
in a power supply application required for a long service life. Does this component degrade when stored powered off for long periods of ...
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How do I select a correct BGA underfill?
Several products we manufacture use fine (0.4mm) pitch BGA devices. In order to improve reliability, we are (by hand) applying BGA underfill to these devices. This is a type of adhesive which flows ...
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PCB footprint design for minimum solder use [closed]
Are there any studies that show how to design a footprint for minimum solder use?
I'm looking at an application where many millions of solder points per day will be running.
Obviously there's a ...
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Are voltage ratings defined differently for capacitors and light bulbs?
The voltage rating of a capacitor is the maximum operating voltage, while the voltage rating of a light bulb is its normal operating voltage. Are there two different definitions of voltage ratings, or ...
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Concerns about Exceeding Current Rating on SN74HC595N to drive LEDs
I am currently working on a project where I am utilizing SN74HC595N shift registers to drive multiple LEDs. According to the datasheet, the maximum output per pin is specified as 35 mA, with a maximum ...
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How to add "cold-reset" MOSFET to a I²C chip? Should it be a P-MOS or N-MOS?
Background
I have a device which sports a couple of "IMU" chips - ICM-20602 and LIS3MDL - which both do not have reset functionality on a pin. They do have the ability to be rebooted by a ...
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How do you choose the right load for reliability testing?
I am an automotive reliability and test engineer. I do environmental or electrical tests and during these tests I need to load my products. By load I mean, for example, there is a mosfet driven by a ...
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Reliable fail-safe optoisolator
I would like to add an extra fail-safe to a optocoupler. My current approach is to transmit a pulse of very specific frequency and pulsewidth on a clock on the high voltage side through the ...
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Why is a MEMS device affected by helium but not hydrogen?
It seems that MEMS is very sensitive to helium, but only helium. This Link stated that hydrogen does not affect MEMS, which surprised me. Does anybody know why it's just helium, or what's really going ...
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How reliable are screw terminal blocks when the connected cables are allowed to sway a little bit?
2.54 Screw terminal blocks are a really convenient way to wire up devices without the need to solder a port or a jack connector.
However, with all their convenience, how reliable are screw terminal ...
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