ISP521-4BLG

Transistor, Photovoltaic Output Optoisolators Overview

The ISP521-4BLG is a four-channel optoisolator manufactured by Isocom Components 2004 LTD. It features transistor outputs and provides an isolation voltage of 5300Vrms. The device is housed in a 16-pin DIP package with a 10mm lead spacing. It utilizes infrared light emitting diodes coupled with NPN silicon phototransistors to ensure signal transmission across isolated circuits.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Four independent channels for multi-signal isolation
• High isolation voltage rating of 5300Vrms
• Transistor output configuration for digital switching
• Standard 16-pin DIP packaging with wide lead spacing

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring galvanic isolation
• Signal interfacing between microcontrollers and high-voltage loads
• Noise reduction in data communication lines
• Power supply feedback loops

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix BLG against official Isocom documentation to confirm pinout and insulation class requirements. Ensure the 10mm lead spacing matches the target PCB footprint. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm that the 5300Vrms isolation rating meets the safety standards of the end application.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when four isolated channels are required in a single package. The 16-DIP form factor suits through-hole assembly processes. Consider the 5300Vrms isolation level for applications demanding robust electrical separation. Verify that the NPN transistor output characteristics align with the load requirements of the receiving circuitry.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the ISP521 series of optocouplers from Isocom Components 2004 LTD. The series includes variants with different channel counts and package types, such as the ISP521-1X and ISP521-4XSM. The ISP521-4BLG specifically denotes the four-channel version in a 16-pin DIP configuration with extended lead spacing.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes include other four-channel DIP optocouplers with comparable isolation ratings. Verify pin compatibility and current transfer ratios before substitution. Generic replacements may require schematic adjustments if output configurations differ.