ISP521-4GBSM

Transistor, Photovoltaic Output Optoisolators Overview

The ISP521-4GBSM is a high-density mounting phototransistor optically coupled isolator manufactured by Isocom Components. It consists of four infrared light emitting diodes and NPN silicon photo transistors in an 8-pin surface mount plastic package. The device provides 5300V isolation voltage and features a minimum current transfer ratio of 50%. It is RoHS compliant and designed for applications requiring compact optical isolation.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Four-channel configuration with integrated infrared LEDs and NPN silicon phototransistors
• High isolation voltage capability for robust circuit protection
• Surface mount packaging for high-density board layouts
• Compliant with international safety standards including UL and VDE

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems
• Power supply units
• Signal isolation in communication interfaces
• Microcontroller input/output isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'GBSM' against the manufacturer's official datasheet to confirm lead frame material, plating finish, and tape-and-reel specifications. Ensure the procurement documentation explicitly states compliance with relevant safety certifications such as UL and VDE required for the target application environment.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a quad-channel isolation solution is required in a small footprint. It serves as a direct replacement for standard TLP521-4 series devices. Consider the 5300V isolation rating and 50% CTR minimum when designing circuits that demand reliable signal transmission across isolated boundaries without excessive drive current.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the ISP521 series of high-density phototransistor optocouplers from Isocom Components. The series is engineered to replace legacy components like the TLP521 family. The 'G' suffix typically denotes specific lead form or approval variations, while 'SM' indicates surface mount technology. It is part of Isocom's portfolio of general-purpose optoisolators.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Publicly confirmed substitute part numbers include TLP521-4GBSM and TLP521-4XSM. Verify pinout compatibility and electrical parameters before substitution.