ISP521-4XGB

Transistor, Photovoltaic Output Optoisolators Overview

The ISP521-4XGB is a surface mount phototransistor optocoupler manufactured by Isocom Components. It integrates an infrared emitting diode and four NPN silicon phototransistors in a compact plastic package. The device provides high isolation voltage of 5300Vrms and 7500VPK, ensuring robust electrical separation between input and output circuits. It features a minimum current transfer ratio of 50% and a collector-emitter breakdown voltage (BVCEO) of at least 55V. All electrical parameters are 100% tested to guarantee performance consistency.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates four independent NPN phototransistor channels for high-density mounting applications
• Provides high electrical isolation with 5300Vrms and 7500VPK dielectric strength
• Ensures reliable signal transmission with a minimum current transfer ratio of 50%
• Features high collector-emitter breakdown voltage of 55V minimum for robust operation

Transistor, Photovoltaic Output Optoisolators Applications

• Computer terminals and peripheral interface systems
• Industrial system controllers and automation logic
• Measuring instruments requiring potential isolation
• Signal transmission between systems with different potentials and impedances

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix configuration when ordering. The 'SM' designation indicates surface mount packaging, while 'SMT&R' specifies tape and reel delivery. Confirm that the required lead spread matches standard or 10mm spacing if applicable. Ensure the procurement documentation aligns with the exact part number variant to avoid package or testing discrepancies during integration.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component for designs requiring multiple isolated channels within a single footprint. The four-channel configuration reduces board space compared to discrete solutions. Verify that the 55V BVCEO meets the load requirements. Consider the 50% minimum CTR for drive capability. This device serves as a direct replacement for industry-standard TLP521-4 series components in existing layouts.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the TLP521 series of phototransistor optocouplers produced by Isocom Components. The series includes variants with one, two, and four channels. The ISP521-4XGB specifically denotes the four-channel surface mount version. Isocom manufactures these devices to meet global industry standards, offering custom electrical selections and various packaging options including DIP and SMD formats.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The ISP521-4XGB is designed as a direct substitute for the TLP521-4 series from other manufacturers. When replacing, ensure the pinout compatibility and package dimensions match the original design. Verify that the isolation voltage and current transfer ratio specifications of the original component are met or exceeded by this Isocom variant.