UART Optoisolator Selection

✅ Component type/category matches: Optocoupler in DigiKey category Logic Output Optoisolators.
✅ Output Type: Open Collector, Schottky Clamped; satisfies required Open Collector output.
✅ Number of Channels: 1; matches requirement.
✅ Voltage - Isolation: 3750Vrms; exceeds the minimum 3000Vrms requirement.
✅ Data Rate: 10Mbps; exceeds the required minimum 1MHz and is more than sufficient for 115200 baud UART.
✅ Propagation Delay tpLH / tpHL (Max): 90ns, 75ns; well within the maximum 10µs limit.
✅ Current - Output / Channel: 50mA; exceeds the required minimum 10mA.
✅ Voltage - Forward (Vf) (Typ): 1.4V; within the maximum 1.5V requirement.
✅ Current - DC Forward (If) (Max): 50mA; exceeds the required minimum 30mA.
✅ Voltage - Supply: 3V ~ 5.5V; includes 3.3V as required for MCU-side operation.
✅ Mounting Type: Surface Mount; matches requirement.
✅ Package / Case: 8-SOIC; matches required compact SOIC-8 SMD package.
✅ Operating Temperature: -40°C ~ 85°C; meets the required industrial temperature range.
✅ RoHS Compliance: ROHS3 Compliant; satisfies requirement.
All required specifications are satisfied. This component is approved for the isolated UART TX application.