ISP817A

Transistor, Photovoltaic Output Optoisolators Overview

The ISP817A is a single-channel phototransistor optocoupler from the ISP series, designed for high-density mounting applications. It features a plastic DIP-4 package with through-hole or surface-mount configurations. The device provides electrical isolation with a maximum insulation voltage of 5300 Vrms and operates within a temperature range of -55°C to 100°C. Key electrical parameters include a typical rise time of 4µs, a typical fall time of 3µs, and a maximum collector-emitter breakdown voltage of 35V. The component supports a maximum forward current of 50mA and complies with UL recognition standards.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides galvanic isolation between input and output circuits using infrared light transmission.
• Features a compact plastic package design suitable for high-density PCB mounting.
• Delivers fast switching performance with optimized rise and fall times for signal integrity.

Transistor, Photovoltaic Output Optoisolators Applications

• Logic-to-logic isolation in noisy industrial environments
• Line receiver circuits for data communication
• Programmable current level sensing

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify that the specific ordering suffix matches the required lead form (e.g., straight pins for DIP or gull-wing for SMD) as the base part number may not specify the physical termination style. Confirm compliance requirements such as UL certification file numbers if safety isolation is critical for the end application. Ensure the selected variant aligns with the intended mounting technology on the target printed circuit board.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single channel of optical isolation is required with moderate speed capabilities. Consider the operating temperature range and insulation voltage ratings against the system's electrical stress levels. Evaluate the package dimensions to ensure compatibility with available board space constraints compared to alternative optocoupler families.

Transistor, Photovoltaic Output Optoisolators Part Context

The ISP817A belongs to the ISP family of high-density phototransistor optically coupled isolators manufactured by Isocom Components. This series is engineered to serve as a direct replacement for common industry standard components, offering flexible parameter selection to meet specific circuit design needs while maintaining global industry standard certifications.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers include TLP521, TLP621, SFH615A, and H11L1. Verify pinout compatibility and electrical specifications before substitution.