BUY PC929 https://www.utsource.net/itm/p/12357459.html
Description: PC929 is an optically coupled isolator consisting of an infrared emitting diode and a phototransistor.
Features:
High isolation voltage between input and output (Viso = 5300 Vrms)
High speed response time (tPHL = 0.7μs, tPLH = 0.7μs)
Low input current (Iin = 0.5mA)
Low output saturation voltage (VCE(sat) = 0.2V (Max))
High collector-emitter voltage (VCEO = 80V)
Compact SOP-14 package
Applications:
Isolation amplifier
Switch regulator
Telecommunication
Industrial equipment
Computer peripheral interface
(For reference only)