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    Stud mounted zener power dissipation

    Whats the use for stud mounting 3.5W zeners such as a 1N1595A or a 5W stud mounted zener when there are very small 5w axial packages available?

    Can they at least clamp and handle much higher peak power than axial parts?
    Last edited by Zak28; 29th April 2019 at 04:43.

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  2. #2
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    Re: Stud mounted zener power dissipation

    Benefits aside from thermal impedance to heatsink.



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    Re: Stud mounted zener power dissipation

    I'm not aware of in-production 3.5 or 5W stud mount zener diodes. They have usually 10W upwards. May there are some legacy types.

    Short time peak power depends on the die size, not the case.



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  4. #4
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    Re: Stud mounted zener power dissipation

    These do appear to be antiquated parts there are these https://www.ebay.com/itm/263722455074/ and a 3.5W stud mounted zener https://www.ebay.com/itm/223134043533 older semiconductors used to be made with quite large packages.

    Is continuous power dissipation rating indicative of a zeners die size?



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