ISP817-1G

Transistor, Photovoltaic Output Optoisolators Overview

The ISP817-1G is a single-channel phototransistor optocoupler manufactured by Isocom Components. It features a DC input and an NPN phototransistor output housed in a 4-pin DIP package. Key electrical parameters include a maximum forward voltage of 1.4V, a maximum input current of 50mA, and an isolation voltage of 5300 Vrms. The device exhibits a typical rise time of 4µs and a typical fall time of 3µs. Current transfer ratios range from 200% to 600%, supporting high-density mounting applications with robust signal isolation capabilities.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides galvanic isolation between input and output circuits using optical transmission
• Features a compact 4-pin DIP package designed for high-density surface or through-hole mounting
• Utilizes an NPN phototransistor output stage for digital signal switching
• Ensures safety compliance with UL recognition and VDE approval standards

Transistor, Photovoltaic Output Optoisolators Applications

• Logic-to-logic isolation in noisy industrial environments
• Signal transmission in computer and peripheral interfaces
• Digital control circuits for motors and servo machines
• Programmable current level sensing applications

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix designation against official Isocom documentation to confirm pinout configuration and packaging type. Ensure that the selected variant matches the required isolation voltage and current transfer ratio specifications for the target circuit design. Cross-reference part numbers with authorized distributors to confirm authenticity and availability status prior to procurement.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single-channel isolation solution with moderate speed requirements is needed. The 5300 Vrms isolation rating suits general industrial and commercial applications. Consider the 200-600% CTR range for driving standard logic inputs. Verify thermal dissipation limits if operating near maximum current ratings.

Transistor, Photovoltaic Output Optoisolators Part Context

The ISP817 series belongs to Isocom's line of high-density mounting phototransistor optically coupled isolators. These devices are designed as industry-standard replacements for legacy components. The series includes various channel configurations and output types to support diverse isolation needs in power supplies and control systems.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Publicly confirmed substitute part numbers for ISP817-1G were not found in the provided source material. Users should consult official Isocom documentation or distributor cross-reference lists for verified equivalents.