BUY HCPL-6N137 https://www.utsource.net/itm/p/11648207.html

Description: The HCPL-6N137 is an optically coupled isolator consisting of an AlGaAs LED and an integrated high gain photo detector. Features: -High speed: tPHL/tPLH = 4.5/4.5 ns (typical) -High input-output isolation voltage: Viso = 5000 Vrms (min) -Low input current: IIL = 0.5 mA (max) -Low output saturation voltage: VCE(sat) = 0.5 V (max) Applications: -Industrial control systems -Telecommunication systems -Computer systems -Measurement and instrumentation (For reference only)