IS661G

Transistor, Photovoltaic Output Optoisolators Overview

The IS661G is a high-voltage optically coupled isolator manufactured by Isocom Components. It features a single channel with an NPN Darlington transistor output, housed in a 6-pin DIP package for through-hole mounting. The device provides a minimum isolation voltage of 5300 Vrms and supports a maximum forward voltage of 1.65V. Key electrical parameters include a typical rise time of 2µs, a typical fall time of 11µs, and a maximum input current of 60 mA. The current transfer ratio ranges from a minimum of 200% to a maximum of 400%, ensuring reliable signal transmission across isolated circuits.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High-voltage Darlington output configuration for robust switching capabilities
• Optical isolation barrier providing significant separation between input and output circuits
• Single-channel design integrated into a standard DIP package

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring galvanic isolation
• Power supply feedback loops
• Solid-state relay driver circuits

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'G' against official manufacturer documentation to confirm compliance details and pinout compatibility. Ensure that the required isolation voltage ratings align with your system's safety standards before integration. Cross-reference the datasheet for any updates regarding environmental certifications or material composition declarations.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high output voltage swing and substantial current drive are necessary within an isolated environment. The Darlington configuration offers higher gain compared to standard phototransistors, making it suitable for direct interface with logic inputs without additional amplification stages. Consider the thermal characteristics and package constraints during PCB layout planning.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the IS661 series of high-voltage optocouplers designed for demanding industrial applications. The series emphasizes durability and high isolation performance, catering to environments where electrical noise and potential differences pose risks to sensitive control electronics.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Consult official substitution lists for equivalent high-voltage Darlington optocouplers. Verify pin compatibility and electrical parameter overlaps before replacing the original component to ensure circuit functionality remains intact.