Sometimes the correct heatsink choice is not always clear. To help address this, Eravant matches each part’s package with an associated heatsink. To determine what heatsink works with your device there is a straightforward process.

 

 Figure 1. Process flow for determining correct heatsink

 

To illustrate an example, we will walkthrough SBP-5037033518-VFVF-S1. First, we look at the product datasheet. Under Mechanical Specifications we see that the outline is BG-SC-1. We then move up to the Electrical Specifications section to determine what is the Maximum DC Voltage and DC Supply Current. In our example this is 15 VDC and 0.65 A multiplying these two quantities and 1.5 for headroom we obtain 14.625 W. We then take these two quantities (BG-SC-1 and 14.625W) and look at our table.

 

Figure 2. Table to determine Heatsink selection We can see that BG-SC-1 is found in multiple columns; however, the correct column would be the 45W list as this is well above the 14.625W maximum. If customers would like to accept the risk of choosing a lower power dissipation, they can elect to go with the SUA-15-S5 but Eravant would propose the SUA-45-S5 for this example. While the list below is expansive it is not comprehensive and there may be outlines with heat sinks that do not appear here, if there is an outline on our datasheet but no related heatsink please email support@eravant.com as there may already be a heatsink that works with said outline that we can quote. Click Here to download the full chart.