onsemi 5kV 50mA Bipolar Transistor FOD2743B

1-Ch Phototransistor Optocoupler, 5kV Isolation, 50mA Output Product overview: FOD2743B from onsemi is a Bipolar Transistor for signal amplification, switching, driver stages, discrete power control, and general electronic circuit design. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 5kV, 50mA. Search-friendly keywords include transistor, BJT, switching, amplification, 5kV, 50mA, Bipolar Transistor, Transistor, Photovoltaic Output Optoisolators. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 903-FOD2743B can be used for catalog matching and distributor lookup.