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IRFZ BVDSS = 60 V. RDS(on) = Ω. ID = 50 A. ± . .. Obsolete. This datasheet contains the design specifications for. IRFZ44 Transistor Datasheet, IRFZ44 Equivalent, PDF Data Sheets. MOSFET. Parameters and Characteristics. Electronic Component Catalog. Advanced HEXFET® Power MOSFETs from International. Rectifier utilize advanced processing techniques to achieve extremely low.

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Can you please link the datasheet? I can vouch for seeing it on a design I was asked to look at.

Within about a milli second, a hot spot can develop in the hexfet and a localized temperature of over centigrade results and blows a hole in it before the feedback loop can respond.

This is the thermal runaway I refer to.

IRFZ44 MOSFET. Datasheet pdf. Equivalent

Well, the mosfet died. However, I have tested it a lot at V and 1A. Email Required, but never shown.

Figure 1 and figure 2 describe the DC operations despite this measurement being made with a 20 us pulse: Extrapolating the points where the mosfet worked and did not work the imaginary DC operation line does not give me a line parallel to the other lines at difference pulse widths. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

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Vishay – IRFZ44, SiHFZ44 – Power MOSFET

Sign up using Email and Password. It was not even warm, maybe only at 35C or so. Sign up using Facebook. Expecting reliability at any more than 30W even with excellent cooling is unrealistic. On semi document on thermal instability. Nasa document explaining it. Yes, a MOSFET will go into thermal runaway if the gate-source voltage is below the zero-temperature-coefficient threshold. Tony EE rocketscientist 62k 2 21 The electronic load does work badly smoothed 40V DC 3A.

Chupacabras 3, 2 11 Indraneel 1, 4 This irf4z4 some theoretical annoyance that doesn’t really happen. By clicking “Post Your Answer”, you datasueet that you have read xatasheet updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. Case daatasheet does not go over 40C.

Added on APR The dc curve is a flat line at about 2A till 20V, and falls sharply after that to mA at 40V. Otherwise, I may have to change it all to a 2N and make a mess.

Post as a guest Name. I have a large heatsink with a fan on it. I couldn’t find anything at 0Hz linear operation. Datasheeet you not understand my answer with Temp rise?

So, they too may in reality be curving downwards much more at higher voltages i. This also means the SOA curves in the datasheet are probably not all correct. This one failed with only 2. Any idea what the max current might be at 30V and 40V so as not to cause damage? It should probably tolerate a lot if the Vds is limited to only about 10V. I have built an electronic load.


So that probably explains the missing dc line in the SOA curve. Sign up or log in Sign up using Google. Damage could be caused by overheat in your case DC load.

You have to work with power datqsheet figures.

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So to answer my own question VGS must be greater datqsheet 4V to lower Ron. This mosfet will fail at above 2A at all voltages below 20V. At the time I did not understand the SOA curves. Home Questions Tags Users Unanswered.

It is huge difference between 3A 40V and 3A 5V.