OHMITE MV-102-55E HEAT SINK; THERMAL RESISTANCE:6¦C/W; PACKAGES COOLED:TO-247, TO-264; EXTERNAL WIDTH - METRIC:34.1MM; EXTERNAL HEIGHT - METRIC:38.6MM; EXTERNAL LENGTH - METRIC:55MM; EXTERNAL DIAMETER

hello and welcome to polar electronics and in this video we're going to talk about thermal considerations for power electronic devices specifically we're going to look at an example using a MOSFET and our example will apply to other devices such as diodes quick overview of where we're going to go first we're going to present a simplified thermal model for analyzing the energy flow there are more complicated models based on using thermal capacitance we're going to do a very static simplified model and we're going to look at the energy flow out of an electronic package then we're going to illustrate this thermal analysis be an example using a MOSFET and at to-220 package let's look at a simplified model there are a couple of things that are defined in our model the first one is P sub D and P sub D is the dissipated power within the device itself you for example Aetna MOSFET that dissipate