Vishay/ Isocom Transistor/ Darlington Output Optoisolators
- Isocom TLP621-4X, A quad transistor output optoisolator consisting of an infrared LED & NPN silicon photo transistor in a space efficient dual in line plastic packages. Used in computer terminals, industrial systems controllers, measuring instruments & signal transmission between systems of different potentials & impedances. Isocom TLP621-4X Quad Transistor Optoisolator