Questions tagged [dimensions]
The dimensions tag has no usage guidance.
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What are the footprint dimensions for a GX-16 8-pin ("aviation") connector?
I would like to make through-holes in a PCB to mount a GX16 8-pin connector. I have looked everywhere but cannot find a source for the pin dimensions---and they are not consistent. I've measured with ...
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Lithium polymer battery size versus energy density
I am building a small device that needs to use a rechargeable lithium polymer battery. The dimensions I am looking for are 351125 { 35 mm (H) x 11 mm (W) x 25 mm (L) }, which is the standard way these ...
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Faston/Lucar blade thickness
Does the blade thickness of Lucar/Faston-type connectors vary methodically with both blade width and "colour" i.e. wire rating?
I'm looking at some UPS cells with blades which appear to be 0....
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Alternative to pull-up resistor
I am building this AND gate, and I managed to get it to work properly. However, I had to increase the value of the pull-up resistor to 3 megohms which is too big for what I need. However if I don't ...
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Capacitor taping Vs straight leads
I can't understand what means in the datasheet below where it writes "Lead Space: Taping or Straight". With taping means that the leads have outside bend in order to increase the pitch ...
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Does anyone know the physical dimensions of the Microchip PICkit4 programmer?
Does anyone know the physical dimensions of the Microchip PICkit4 programmer (PG164140)? It would be useful to know so that I can leave proper clearance on my PCB around the programming header.
I ...
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What is the maximum height (thickness) per slot for a finished (soldered/populated) PCI express card?
The main question is:
Defined by maximum allowable height from the surface of the PCB on both sides (soldered pins and components), or whatever metric experts think would be most useful in decoding an ...
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AutoCad Eagle: dimension markings not rotating correctly
I have a library component in AutoCAD Eagle. I want to include dimension markings on the Reference layer.
I opened the component library, and used the Dimension tool to mark the dimensions I need. I ...
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Have AAA batteries gotten shorter? [closed]
I'm finding that the standard AAA battery from most manufacturers (including Duracell and Energizer) have gotten shorter and don't fit as tightly in my alarm clock and HP-48 calculator. The old ...
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Does the length of a pad's edge include the radius?
I'm making a footprint for a part, and I'm unsure how the length of an edge is defined.
I've circled in red the two dimensions that are confusing me.
For example, does the 0.1 indicate the length of ...
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Cable dimension for different loads
I have 40 loads connected to the same power supply. If every load draws 0.5 A in current and all of them 20 A.
According to this I need cable dimension of 2.5 mm² for the main cable and then 1.5 mm² ...
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Find a commercial transistor with known channel width, channel length, dielectric thickness, etc for experimental purposes?
I want to buy a commercial transistor, with known dimensions (channel width/length, dielectric thickness, materials etc.) This data is necessary to select a transistor most compatible with my ...
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Ideal dimensions for an electromagnet?
I've been working on a design for an electromagnet.
I've exprimented various lengths of core, and figured the height of the windings for 6 different gauges of magnet wire based on the maximum current ...
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Why is 'density' different for current?
Considering an N-type semiconductor, when we talk about carrier density, it means number of electrons per unit volume. But, when we define current density(J), it is measured as total current per unit ...
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ψ used as diameter, which unit is this?
I am designing a PCB footprint for this part: https://www.meanwell.com/productPdf.aspx?i=685
On page 4, the pins diameters are indicated as: diameter:1ψ and diameter:2ψ
Also, on the quotes, they are ...
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