ISP521-1BL

Transistor, Photovoltaic Output Optoisolators Overview

The ISP521-1BL is a single-channel optocoupler manufactured by Isocom Components 2004 LTD. It features an infrared LED input paired with an NPN silicon phototransistor output, housed in a compact 4-pin DIP package. The device provides high-density mounting capabilities and offers electrical isolation rated at 5300Vrms. Designed for general-purpose signal transmission, it supports DC input operation and delivers transistor-based output suitable for various industrial and commercial applications requiring reliable galvanic isolation.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Single-channel configuration with integrated infrared LED and NPN silicon phototransistor
• High-density 4-pin DIP packaging for efficient board space utilization
• Robust electrical isolation capability rated at 5300Vrms
• DC input operation compatible with standard logic interfaces

Transistor, Photovoltaic Output Optoisolators Applications

• General-purpose signal isolation in industrial control systems
• Power supply feedback loops and protection circuits
• Data communication interface isolation
• Microcontroller I/O isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'BL' against official Isocom documentation to confirm exact binning or testing criteria, as suffixes may denote specific parameter ranges or manufacturing revisions. Ensure the procurement source provides valid traceability and authenticity certificates. Confirm that the 4-pin DIP form factor matches the target PCB footprint requirements before finalizing orders.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single-channel isolation solution with high voltage withstand capability is required in a small footprint. The NPN output type is suitable for sinking current loads. Compare the 5300Vrms isolation rating against system safety standards. Consider the DIP-4 package constraints for thermal management and mechanical stability during assembly processes.

Transistor, Photovoltaic Output Optoisolators Part Context

Isocom Components 2004 LTD specializes in high-performance infrared optoelectronic devices, including optocouplers and photo-switches. The company has a history dating back to the 1980s, originally evolving from Litronix operations. They are known for providing alternative sources for legacy components and offering flexible manufacturing options, including custom parameter selection and reel packaging upon request.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The ISP521 series is often designed as a direct replacement for other industry-standard 4-pin transistor-output optocouplers. Verify pinout compatibility and electrical parameters such as CTR and isolation voltage against existing designs. Cross-reference with similar models like TLP521-1 if functional equivalence is required, ensuring all critical specifications match.