ISOCOM ISP817XSM Optocoupler, 1 Channel SMD DIP, 5.3kV, 50mA, 50% CTR

The ISOCOM ISP817XSM is a high-performance, 1-channel optically coupled isolator designed for modern, compact electronic applications. This surface-mount device integrates an infrared light emitting diode (LED) with an NPN silicon phototransistor to provide robust electrical isolation and reliable signal transmission between circuits of differing potentials and impedances.

Engineered for high-density mounting, this optocoupler is an essential component for protecting sensitive control circuits from voltage spikes, ground loops, and electrical noise. Its primary function is to transfer electrical signals using light, thereby creating a galvanic isolation barrier that enhances system safety and integrity.

Key Features & Applications

The ISP817XSM is built to meet rigorous industrial standards, with all critical electrical parameters 100% tested to ensure consistent performance. It features a high isolation voltage of 5.3kV, making it suitable for harsh environments where safety and reliability are paramount. With a forward current rating of 50mA and a minimum current transfer ratio (CTR) of 50%, it delivers efficient and dependable signal coupling.

Its compact SMD DIP package saves valuable board space, making it ideal for a wide range of applications. It is commonly used in industrial system controllers, programmable logic controllers (PLCs), and power supply feedback circuits. It is also perfectly suited for computer peripherals, test and measurement equipment, and general signal processing tasks where electrical isolation is required.

Technical Specifications

The device offers a collector-emitter voltage (V(br)ceo) of 35V and a high minimum breakdown voltage (BVCEO) of 80V. It has a low reverse voltage of 6V and a total power dissipation of 200mW. This combination of specifications ensures stable operation and long-term durability in demanding electronic designs.

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