Questions tagged [heatsink]
A heatsink dissipates heat into the surrounding air and thus provides cooling.
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Heatsink can cause a shortcircuit what kind of problem occurs?
I'm not sure what will happen in this kind of scenario I'll share the photo of two diodes and basic connections below.
These two diodes tab points are actually connecting same node because of tab is ...
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How large would my heatsink need to be for the IRLB4132 at 12.6 V and 60 A
I'm building a power distribution board (PDB) for my drone, which is powering 4 ESCs and an Arduino 33 BLE Sense Rev2.
I’m using a 3s LiPo battery which provides 12.6V at max charge. My ESCs are rated ...
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Troubles in understanding the TGA2214-CP microwave power amplifier datasheet
The datasheet of the Qorvo microwave amplifier is here.
I have troubles with the following points:
In p. 9, they give a schematic of the way to mount the amplifier (I believe).
But at the end of the ...
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Generic thermal resistance values for a heatsink
I am building a linear power supply, and I would like to know roughly how big my heatsinks need to be. Is there a rule of thumb for the thermal resistance of a heatsink given its dimensions and ...
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How to remove an old epoxy-like thermoconductive compound?
I'm not sure if this is the place to ask or it would be better suited for retrocomputing.
I'm salvaging some old components from old boards and I came across a very hard blue thermal compound that a ...
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What's the purpose of a large thermal pad without a heatsink?
I found this thermal pad on a controller board for SATA to USB enclosure. It's stuck on the SATA to USB bridge ICs. You can see 2 ICs to the left of it. There was an identical thermal pad adhered ...
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how to make heat sink under heat pads in kicad 7
Retired user here that have not designed a circuit in the last 3 years.
So I got myself KiCad 7 and boy oh boy things have changed!
Mostly for the better, but some things I used to do are now a real ...
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IC thermal pad: Place heat sink directly over bottom-side thermal pad and thermal vias
If a VQFN package (below) has a thermal pad and thermal vias beneath it, the bottom layer should have an identical pad to act as a heat sink.
Is it typical to surface mount a heatsink on the bottom-...
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IC thermal pad: Duplicate zone in inner layers also?
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For a passively-cooled portable device (fanless, ambient cooling), what are typical methods to supplement the thermal pad of an IC to mitigate device temperature rise, (beyond efficient ...
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Understanding semiconductor thermal resistance
Most datasheets I read through have a thermal resistance rating attached to the particular package the semiconductor comes in (i.e. TO-220, D2PAK, TO-3P, etc), usually in the form of θJA (junction-to-...
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Thermal conductivity of 1600W/m·K?
I am comparing different thermal conductivities in the market and found that the thermal conductivity goes up to 1600W/m·K for a thermal sheet, but a thermal paste is still 0.65 W/m·K.
Does it make a ...
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Cooling IAUC90N10S5N062 MOSFET from the top
I design a sync - buck converter, and I need to cool down my top side and bottom side MOSFETs. For mechanical reasons, it is easier for me to place a heat sink on top of plastic housing of MOSFETs (...
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Mounting an 11W SCR with a Flat Profile
I have two SCRs in my design that will be switching up to 15A at 120-240VAC. The two devices will split the power, with each one conducting a half cycle. I'm considering using the S6025 by Littelfuse.
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Spice model for a heatsink/mounting hole/test-point/connector pin - devices with one or no connection points - using Altium simulator
I am setting up a simulation model in Altium with SPICE models and have no idea how to provide a model for a single connection device (connector pin, test-point) or a no-connection device like a ...
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Heat sink calculation for multiple heat sources connected to a single copper plate
I have 2 switches, both are thermally connected to one copper plate. One switch has heat resistance - junction to copper plate = 1.09 C/W and dissipates 6 W of heat. The other has heat resistance - ...
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