Broadcom, ACPL-217-56CE Transistor Output Photocoupler, Surface Mount, 4-Pin

The Broadcom ACPL-217 is a DC-input single-channel half-pitch phototransistor opto -coupler that contains a light-emitting diode optically coupled to a phototransistor. It is packaged in a 4-pin SO package.

Current transfer ratio (CTR: 50% (min) at IF = 5 mA, VCC = 5V)
High input-output isolation voltage (VISO = 3750VRMS)
Non-saturated Response time (tr: 2 μs (typ) at VCC = 10V, I C = 2 mA, RL= 100Ω)
SO package
CMR 10 kV/μs (typical)