ISP621-1BLG

Transistor, Photovoltaic Output Optoisolators Overview

The ISP621-1BLG is a single-channel optically coupled isolator manufactured by Isocom Components. It integrates an infrared light-emitting diode with an NPN silicon phototransistor within a compact dual in-line plastic package. The device provides high-density mounting capabilities and features a minimum current transfer ratio of 50%. It offers a high isolation voltage of 5.3 kVrms and a peak isolation voltage of 7.5 kV. The phototransistor collector-emitter breakdown voltage is specified at a minimum of 55V. All electrical parameters are 100% tested to ensure reliability.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates an infrared LED with an NPN silicon phototransistor for signal transmission between isolated circuits
• Provides high isolation voltage capability with 5.3 kVrms rating and 7.5 kV peak withstand
• Ensures high current transfer efficiency with a minimum ratio of 50%
• Features high collector-emitter breakdown voltage of 55V minimum for robust operation

Transistor, Photovoltaic Output Optoisolators Applications

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

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'BLG' against official Isocom documentation, as standard datasheets typically list 'G' for lead spread or 'SM' for surface mount options. Confirm that the 'B' designation does not indicate a custom electrical selection or specific packaging variant not covered in general public specifications. Ensure the component matches the required pinout and package dimensions for your design.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high-density mounting is required alongside reliable galvanic isolation. The 5.3 kVrms isolation rating makes it suitable for applications requiring significant potential differences between input and output sides. The 50% minimum current transfer ratio ensures adequate signal coupling for standard logic interfaces. Verify thermal limits and operating temperature ranges against your specific environmental requirements.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the TLP621 series of high-density mounting phototransistor optically coupled isolators produced by Isocom Components. The series is designed to replace common industry-standard optocouplers while offering space-efficient packaging. Isocom specializes in providing alternatives for components no longer available from original manufacturers, often with customized parameter selections to meet specific circuit design needs.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Publicly confirmed substitute part numbers for the specific suffix configuration are not available in the provided source material. General equivalents within the TLP621 family may exist, but direct substitution requires verification of pin compatibility and electrical parameter alignment with the original design specifications.