BUY RT1P441C https://www.utsource.net/itm/p/11272775.html
RT1P441C PNP Bipolar Digital Transistor (BRT) -50V -100mA/-0.1A 50 0.15W/150mW SOT-23/SC-59 marking P3 switch inverter interface driver circuit
Description: 4-Channel Photocoupler Features: Isolation Voltage: 5000 Vrms Low Input Current: 0.5 mA (Max) High Output Voltage: 80 V (Max) High Speed Response: tpLH = tpHL = 4.0 μs (Typ) Low Output Saturation Voltage: 0.4 V (Max) Compact SOT-23 Package Lead Free Application: Power Supply Printer Office Automation Equipment Industrial Equipment Home Appliances Automotive Electronics (For reference only)