UART Optoisolator Selection

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