The Isocom H21A2 is a high-performance phototransistor optocoupler designed for applications requiring electrical isolation between input and output circuits. This device features a collector-emitter voltage (Vce) of 70V and a current transfer ratio (CTR) between 50% and 600%, ensuring efficient signal transfer. Housed in a DIP-4 package, the H21A2 is easy to integrate into existing designs. Typical applications include signal transmission, power supply regulation, and digital logic isolation. Supreme Components International is an authorised distributor of Isocom components, guaranteeing genuine parts and reliable performance. Choose the H21A2 for robust and dependable isolation solutions.