We do not carry sinopower or their mosfet # SM1A50NHF. For an alternate option, please consider Digi-Key # IRFB4321PBF-ND (Infineon Technologies # IRFB4321PBF).
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The TechForum Cross Reference category is for parts that Digi-Key does not sell or parts that have gone obsolete. Our Engineers and Techs have reviewed the specifications for these parts and made a recommendation for a replacement. Please review the suggested part to ensure it will work for your application.