IS204SM

Transistor, Photovoltaic Output Optoisolators Overview

The IS204SM is a single-channel phototransistor optically coupled isolator manufactured by Isocom Components. It integrates an infrared LED with an NPN silicon phototransistor in a surface-mount plastic package. Key electrical specifications include a minimum current transfer ratio of 50%, a maximum forward input current of 0.5mA, and a high collector-emitter breakdown voltage of 70V minimum. The device supports an isolation voltage of 5.3kVRMS and 7.5kVPK. Operating temperature ranges from -55°C to 125°C. It complies with RoHS standards and features UL recognition for safety certification.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Low input current requirement of 0.5mA IF
• High isolation voltage capability of 5.3kVRMS
• High current transfer ratio with a minimum of 50%
• High collector-emitter breakdown voltage of 70V min

Transistor, Photovoltaic Output Optoisolators Applications

• Computer terminals
• Industrial systems controllers
• Signal transmission between systems of different potentials and impedances

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix configuration when ordering, as the base part number allows for variations such as lead spread (G), tape and reel (SMT&R), or standard surface mount (SM). Confirm that the selected variant matches the required packaging format and pin spacing for the target PCB layout. Ensure compliance with RoHS directives and check for any specific UL file numbers required by the end-application safety standards before finalizing procurement.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component for applications requiring low drive current and high isolation reliability. The surface-mount package suits automated assembly processes. Consider the 50% minimum CTR for logic interfacing where moderate gain is sufficient. The wide operating temperature range makes it suitable for industrial environments. Verify that the 70V BVCEO meets the load voltage requirements of the output circuit.

Transistor, Photovoltaic Output Optoisolators Part Context

The IS204 series belongs to Isocom's line of low input current phototransistor optocouplers. The SM suffix denotes the surface-mount version of the dual-in-line plastic package. This family provides space-efficient solutions for signal isolation. Isocom manufactures these components to replace common industry standard types, offering flexible manufacturing options and short production lead times for global supply chains.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not explicitly listed in the provided source material for the IS204SM. Cross-reference checks should be performed against generic phototransistor optocoupler specifications if direct substitutes are needed.