The onsemi HCPL0611R2 is a single-channel optoisolator in an 8-SOIC surface-mount package, delivering 3750Vrms galvanic isolation between a DC-input LED and an open-collector output. Rated for 10Mbps data rate with 75ns max propagation delay (tpLH/tpHL), it suits isolated digital communication links where timing margin matters — think fieldbus interfaces or PLC digital I/O modules that need to pass 10Mbps signals across a safety barrier.
Isolation and transient immunity for industrial noise
The 3750Vrms isolation rating meets basic safety isolation requirements per IEC 60950-1 for reinforced insulation in mains-connected equipment — a common threshold for industrial power supplies and motor drives. Common-mode transient immunity of 15kV/µs minimum means the output stays clean when a fast voltage spike jumps across the isolation barrier, such as from a switching MOSFET on the high-voltage side of a half-bridge gate driver.
Output drive and timing for logic-level interfaces
Typical rise/fall times of 50ns and 12ns respectively, combined with 75ns max propagation delay, keep the signal edge sharp enough for 10Mbps NRZ data without excessive jitter accumulation across a multi-drop bus.