ISP521-2XBL

Transistor, Photovoltaic Output Optoisolators Overview

The ISP521-2XBL is a dual-channel transistor output optocoupler manufactured by Isocom Components. It integrates an infrared emitting diode and an NPN silicon phototransistor within a surface-mount plastic package. The device provides high isolation voltage of 5300Vrms between input and output circuits. It features a minimum current transfer ratio of 50% and a collector-emitter breakdown voltage of 55V. The component operates within a temperature range of -30°C to 100°C and includes UL recognition for safety compliance.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel configuration with integrated infrared LED and NPN phototransistor
• High electrical isolation capability for safe signal transmission across potential differences
• Surface-mount packaging design optimized for space-efficient circuit board layouts

Transistor, Photovoltaic Output Optoisolators Applications

• Computer terminal data transmission systems
• Industrial system controllers requiring signal isolation
• Measuring instruments needing impedance matching
• Signal transmission between systems of different potentials

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'BL' against official Isocom documentation, as standard datasheets typically list 'SM' or 'SMT&R' for surface mount variants. Confirm that the 'BL' designation does not imply a non-standard parameter set or restricted availability. Ensure the ordering information matches the exact package dimensions and lead finish specified in the manufacturer's latest release notes.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when dual-channel isolation is required in a compact surface-mount form factor. The 5300Vrms isolation rating makes it suitable for applications demanding robust separation between control and power circuits. Consider the 50% minimum CTR for driving logic inputs directly. Verify thermal management requirements given the operating temperature range up to 100°C.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the TLP521 series family of high-density mounting phototransistor optically coupled isolators. The series is characterized by its use of infrared LEDs and NPN silicon phototransistors in efficient plastic packages. Isocom Components positions these devices as alternatives to industry-standard optocouplers, offering customizable electrical selections and various lead form options including through-hole and surface-mount configurations.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Publicly confirmed substitute part numbers for the specific 'BL' suffix variant are not available in the provided source material. Standard equivalents within the TLP521 series may include TLP521-2GB or TLP521-2XGB, but verification of pinout and electrical parameters against the original design is essential before substitution.