ISP521-4XBLG

Transistor, Photovoltaic Output Optoisolators Overview

The ISP521-4XBLG is a four-channel optically coupled isolator manufactured by Isocom Components. It integrates infrared light-emitting diodes with NPN silicon phototransistors within a space-efficient dual in-line plastic package. The device provides high-density mounting capabilities and features a minimum current transfer ratio of 50%. It supports a high isolation voltage of 5.3kV RMS and offers a minimum collector-emitter breakdown voltage (BVCEO) of 55V. All electrical parameters are subjected to 100% testing during manufacturing.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Four-channel configuration for high-density circuit integration
• High isolation voltage rating of 5.3kV RMS
• NPN silicon phototransistor output structure
• Minimum current transfer ratio of 50%

Transistor, Photovoltaic Output Optoisolators Applications

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

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'BLG' against official Isocom documentation to confirm lead spread, surface mount status, or tape-and-reel packaging details. Ensure the part number matches the exact datasheet revision. Confirm UL recognition status and RoHS compliance requirements for your specific application environment before finalizing procurement.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multi-channel isolation is required in a compact DIP footprint. The 50% minimum CTR suits applications needing moderate signal transfer efficiency. Verify that the 55V BVCEO meets the load voltage requirements. Consider the 5.3kV isolation rating for safety barrier designs. Compare pinout compatibility with existing PCB layouts if replacing legacy parts.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the ISP/TLP521 series of phototransistor optocouplers from Isocom Components. These devices are designed as replacements for standard industry optocouplers, offering flexible manufacturing options including custom electrical selections. The series emphasizes high isolation performance and reliability for industrial and commercial electronic circuits.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Publicly confirmed substitute part numbers for ISP521-4XBLG are not available in the provided source material. Cross-reference with TLP521-4 variants only if official equivalence data is verified.