TLP321-4

Transistor, Photovoltaic Output Optoisolators Overview

The TLP321-4 is a high-density mounting phototransistor optically coupled isolator manufactured by Isocom Components 2004 LTD. It features four independent channels within a single 16-pin DIP package, integrating an infrared light emitting diode with an NPN silicon photo transistor for each channel. The device provides a rated isolation voltage of 5300Vrms and supports a maximum forward input current of 50 mA. It operates reliably across a temperature range from -30°C to 100°C and holds UL certification.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates four independent optical isolation channels in a compact 16-pin DIP package
• Provides high-voltage electrical isolation between input and output circuits
• Utilizes NPN silicon phototransistor technology for signal transmission

Transistor, Photovoltaic Output Optoisolators Applications

• High-density circuit board designs requiring multiple isolated channels
• Industrial control systems
• Power supply protection circuits

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix (e.g., GB) against the datasheet to confirm pinout and packaging variations. Ensure the required isolation voltage rating of 5300Vrms meets system safety standards. Confirm that the 16-pin DIP form factor fits the target PCB layout constraints before finalizing procurement.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when four separate galvanic isolation paths are needed in a space-constrained application. Compare the 5300Vrms isolation capability against other series like TLP521 if higher density is not the primary constraint. Verify that the NPN phototransistor output type aligns with the downstream logic requirements.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the TLP321 series, which focuses on high-density mounting solutions. Unlike the single-channel TLP321 or dual-channel TLP321-2, the TLP321-4 consolidates four channels into one package, reducing footprint while maintaining standard phototransistor performance characteristics typical of the manufacturer's optocoupler portfolio.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The TLP321-4GB is a verified equivalent variant within the same series offering identical functional specifications.