IS203XG

Transistor, Photovoltaic Output Optoisolators Overview

The IS203XG is a single-channel phototransistor optocoupler manufactured by Isocom Components. It integrates an infrared emitting diode with an NPN silicon phototransistor in a surface-mount plastic package with six terminals. The device provides high isolation voltage of 5.3 kVrms and 7.5 kV peak. It features a minimum collector-emitter breakdown voltage (BVCEO) of 70 V. Typical rise time is 2 µs, and typical fall time is 11 µs. Maximum forward voltage is 1.65 V, and maximum input current is 60 mA. Current transfer ratio ranges from 40% to 80%.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Optically coupled isolation between infrared LED and NPN phototransistor for signal transmission across potential differences.
• High dielectric isolation capability ensuring safety in industrial and computer terminal applications.
• Surface-mount configuration designed for space-efficient dual in-line plastic packaging.

Transistor, Photovoltaic Output Optoisolators Applications

• Computer terminals requiring isolated signal interfaces.
• Industrial systems controllers needing impedance matching between different potentials.
• Signal transmission circuits operating between systems with varying electrical potentials.

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'XG' against official Isocom documentation to confirm exact tape-and-reel specifications or custom electrical selections. Ensure compliance with RoHS directives as indicated for the series. Cross-reference datasheet parameters such as CTR range and isolation voltage with design requirements before finalizing procurement orders.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when surface-mount topology is required for single-channel isolation. Consider the 70 V BVCEO rating for appropriate load switching capabilities. Verify that the 5.3 kVrms isolation meets system safety standards. Evaluate the 40-80% CTR range against drive circuit requirements to ensure sufficient output current.

Transistor, Photovoltaic Output Optoisolators Part Context

The IS203XG belongs to the IS20* series of high-density phototransistor optically coupled isolators. This family includes variants with different lead spreads and mounting options. The series is characterized by 100% tested electrical parameters and availability of custom electrical selections. It serves as a standard solution for galvanic isolation in compact electronic designs.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes within the same manufacturer line include IS203SM for surface mount or IS203G for 10mm lead spread. Generic equivalents like MCT6 or TIL191 may offer similar functionality but require verification of pinout compatibility and electrical parameter margins.