Broadcom 1-Channel Phototransistor Optocoupler, 50 mA, 3 kV

The Broadcom ACPL-217-56BE is a high-performance, single-channel phototransistor optocoupler designed for reliable signal isolation. It features an infra-red LED optically coupled to a silicon phototransistor, all housed in a compact half-pitch SOIC package. With an impressive isolation voltage rating of 3000V_rms, it provides robust protection against high voltage transients, ensuring safe and secure signal transfer between different circuit domains.

This component is engineered for speed, offering a typical non-saturated response time of just 2µs, making it suitable for demanding digital signal transmission. It boasts a high current transfer ratio (CTR) with a minimum of 130% at a standard input current of 5mA, ensuring efficient coupling. The forward current rating is 50mA, and it supports a collector-emitter voltage (V_(br)ceo) of 80V, providing a solid margin for various circuit designs.

Key Features

• High Isolation: 3000V_rms input-to-output isolation protects sensitive components.
• Fast Response: Typical 2µs non-saturated response time for high-speed switching.
• High Efficiency: Minimum 130% CTR ensures strong, reliable signal transfer.
• Robust Construction: Compact, 4-pin SOIC case style designed for surface mounting.

Its combination of speed, high isolation, and efficient coupling makes it an essential component for modern electronics where signal integrity and safety are paramount.