ISP521-4XGBG

Transistor, Photovoltaic Output Optoisolators Overview

The ISP521-4XGBG is a quad-channel optically coupled isolator manufactured by Isocom Components. It integrates four 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 a peak value of 7.5kV. The collector-emitter breakdown voltage is rated at a minimum of 55V. All electrical parameters are subjected to 100% testing during manufacturing.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates four independent channels for compact circuit design
• Provides high isolation voltage for safe potential separation
• Ensures signal integrity through 100% electrical parameter testing
• Utilizes NPN silicon phototransistor output technology

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 configuration against official datasheets to confirm lead spread, surface mount availability, or tape-and-reel packaging options. Ensure the selected variant matches the required isolation voltage and current transfer ratio specifications for the target application environment.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multiple isolated channels are required in a single package footprint. Consider the 5.3kV RMS isolation rating for applications demanding robust noise immunity. Verify that the NPN phototransistor output characteristics align with the downstream logic interface requirements.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the TLP521/ISP521 series of high-density mounting phototransistor optically coupled isolators. The series is designed to replace standard industry components while offering customizable electrical selections. Isocom Components manufactures these devices to meet global safety standards including UL recognition.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers: TLP521-4, TLP521-4BLSM.