TLP621-4SM

Transistor, Photovoltaic Output Optoisolators Overview

The TLP621-4SM is a high-density mounting phototransistor optically coupled isolator manufactured by Isocom Components 2004 LTD. This component features four channels of signal isolation within a single 16-SMD, Gull Wing package. It utilizes infrared light emitting diodes paired with NPN silicon photo transistors to provide electrical isolation between input and output circuits. The device supports surface mount technology for automated assembly processes.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Four-channel optical isolation architecture
• Surface mount packaging configuration
• NPN silicon phototransistor output structure

Transistor, Photovoltaic Output Optoisolators Applications

• Computer terminals
• Industrial systems controllers
• Measuring instruments
• Signal transmission between systems of different potentials and impedances

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm the exact package variant and tape-and-reel specifications. Ensure that the ordering information matches the required lead spread or mounting type options documented in the datasheet. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement to align with manufacturing standards.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multi-channel isolation is required in a compact surface mount footprint. Consider the voltage isolation ratings and current transfer ratio specifications relative to the target circuit design. Evaluate the thermal performance and operating temperature range to ensure compatibility with the intended application environment and system constraints.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the TLP621 series of high-density mounting phototransistor optically coupled isolators. The series includes variants such as TLP621-2X and TLP621-4X, offering different channel counts and package types. The TLP621-4SM specifically denotes the four-channel surface mount version, providing a space-efficient solution for modern electronic designs requiring multiple isolated signals.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes include other TLP621 series variants like TLP621-4X for through-hole applications. Verify pinout compatibility and electrical parameters before replacing with generic optocouplers. Consult official cross-reference lists for confirmed equivalent parts from other manufacturers.