Vishay Intertechnology, Inc. 5.3kV 55V 125mA Bipolar Transistor ILQ55

4-Ch Darlington Optocoupler, 5.3kV Isolation, 55V VCEO, 125mA Output Product overview: ILQ55 from Vishay 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 5.3kV, 55V, 125mA. Search-friendly keywords include transistor, BJT, switching, amplification, 5.3kV, 55V, 125mA, 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-ILQ55 can be used for catalog matching and distributor lookup.