BAS16L 100V Small Signal Fast Switching Diodes Vishay Semiconductors BAS16L Small Signal Fast Switching Diodes are fast switching, silicon epitaxial planar diodes in a leadless ultra small DFN1006-2A package. The BAS16L Small Signal Fast Switching Diodes deliver more reliable power dissipation than SOT-23. The Vishay BAS16L Diodes are offered in a surface-mounted device (SMD) plastic package with visible and sidewall plated / wettable flanks.