ISP321-4

Transistor, Photovoltaic Output Optoisolators Overview

The ISP321-4 is a high-density, four-channel optically coupled isolator manufactured by Isocom Components 2004 LTD. It features a 16-pin Dual In-line Package (DIP) configuration designed for surface mount applications. The device integrates infrared light-emitting diodes with NPN silicon phototransistors to provide electrical isolation between input and output circuits. Key electrical specifications include an isolation voltage of 5300Vrms and a maximum forward current of 50mA. The unit offers a minimum Current Transfer Ratio of 100% at 1mA input current.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Four independent channels integrated into a single compact package
• High isolation voltage rating for robust circuit protection
• NPN silicon phototransistor output configuration
• Surface mount DIP form factor for space-constrained designs

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring multi-channel signal isolation
• Data communication interfaces needing galvanic separation
• Power supply feedback loops for noise reduction
• Microcontroller peripheral isolation in embedded systems

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix code (e.g., XSM, XGB) to confirm the exact package variant and tape-and-reel availability. Confirm that the required isolation voltage and channel count match the system design requirements before ordering. Ensure compatibility with standard surface mount reflow profiles for the selected package type.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multiple isolated channels are required within a limited board area. The 16-pin DIP format supports automated assembly processes. Consider the 5300Vrms isolation rating for applications involving high-voltage differentials. Verify that the NPN transistor output characteristics align with the downstream logic or driver requirements.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the ISP321 series of optocouplers from Isocom Components 2004 LTD. The series includes variants with one, two, and four channels, sharing similar internal LED and phototransistor technologies. The four-channel version maximizes integration density compared to discrete single-channel solutions.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The ILQ2-X007T is a documented obsolete equivalent previously manufactured by Vishay Semiconductor Opto Division. Alternative sources may list the ILQ2SM or ILQ2XSM as compatible replacements from Isocom Components. Verify pinout and electrical parameters against original specifications when substituting.