ISQ203G

Transistor, Photovoltaic Output Optoisolators Overview

The ISQ203G is a high-density phototransistor optically coupled isolator manufactured by Isocom Components. It integrates an infrared light-emitting diode and an NPN silicon phototransistor within a surface-mount plastic package. The device provides electrical isolation with a maximum isolation voltage of 5.3 kVrms and 7.5 kV peak. Key electrical characteristics include a minimum collector-emitter breakdown voltage (BVCEO) of 70 V and a typical rise time of 2 µs. The unit supports a maximum forward input current of 60 mA and operates with DC input signals.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates an infrared LED and NPN silicon phototransistor for signal transmission
• Provides high electrical isolation between input and output circuits
• Features high collector-emitter breakdown voltage capability
• 100% tested to ensure all electrical parameters meet specifications

Transistor, Photovoltaic Output Optoisolators Applications

• Computer terminal interfaces
• Industrial system controllers
• Signal transmission between systems of different potentials and impedances

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'G' against official Isocom documentation to confirm it denotes the 10mm lead spread option or other custom configuration, as standard part numbers may differ. Ensure the procurement source provides valid RoHS compliance certificates and IECQ-CECC component specification references if high-reliability standards are required for the application.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when surface-mount packaging is required alongside high isolation voltage ratings. The 70 V BVCEO rating makes it suitable for applications requiring robust output switching capabilities. Verify that the 2 µs rise time meets the speed requirements of the target circuit, as slower response times may be necessary for high-frequency digital signals.

Transistor, Photovoltaic Output Optoisolators Part Context

The ISQ203G belongs to the ISQ20* series of optically coupled isolators from Isocom Components. This family utilizes space-efficient dual in-line plastic packages. The 'Q' suffix typically indicates a surface-mount variant within the broader IS20/ISD20/ISQ20 product line, distinguishing it from through-hole equivalents while maintaining similar electrical performance profiles.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Cross-reference with Isocom IS203G or ISD203G for pin-compatible alternatives. Check manufacturer datasheets for equivalent parts from other suppliers offering similar 5.3 kVrms isolation and phototransistor output configurations.