ISP321-4XSMT&R

Transistor, Photovoltaic Output Optoisolators Overview

The ISP321-4XSMT&R is a quad-channel transistor output optocoupler manufactured by Isocom Components 2004 LTD. It features a surface mount DIP package with 16 pins, designed for high-density circuit isolation. The device provides an isolation voltage of 5.3 kVrms and supports a maximum forward current of 50 mA. Key electrical parameters include a minimum Current Transfer Ratio (CTR) of 50% and a maximum CTR of 600% at 5 mA input. Typical switching times are 4 µs rise and 3 µs fall. The output voltage rating is 80 V, making it suitable for robust signal transmission in isolated environments.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Quad-channel configuration for multi-signal isolation within a single compact package
• High isolation voltage capability of 5.3 kVrms for enhanced safety and noise immunity
• Wide Current Transfer Ratio range to accommodate diverse drive conditions
• Fast switching characteristics with typical rise and fall times under 4 microseconds

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring multi-channel signal isolation
• Power supply units needing feedback loop isolation
• Data communication interfaces demanding high-speed digital transmission
• Medical equipment requiring strict galvanic isolation standards

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'SMT&R' confirms surface mount tape and reel packaging when ordering. Ensure compatibility with standard 16-pin SMD footprint dimensions during PCB layout. Confirm that the 5.3 kVrms isolation rating meets the safety requirements of the target application environment. Check for RoHS compliance status if required by regional regulations. Validate that the 80 V output voltage rating exceeds the load requirements of the receiving circuitry.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multiple isolated channels are needed in a space-constrained design. The wide CTR range allows flexibility in LED drive current selection. Consider the 5.3 kVrms isolation level for applications involving high potential differences between input and output circuits. The fast switching speed makes it suitable for data rates exceeding those of standard general-purpose optocouplers. Ensure the 16-pin SMD package aligns with available assembly capabilities.

Transistor, Photovoltaic Output Optoisolators Part Context

Isocom Components specializes in providing alternative optocoupler solutions, often replacing discontinued parts from major manufacturers. The ISP321 series represents their high-performance infrared optoelectronic devices. This specific model targets markets requiring reliable, high-isolation voltage components in a modern surface-mount format. The brand emphasizes short lead times and flexible manufacturing for these specialized electronic components.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct replacements may include other quad-channel transistor output optocouplers with similar 5.3 kVrms isolation and 16-pin SMD packages. Verify pinout compatibility before substitution. Compare CTR ranges and switching speeds to ensure functional equivalence. Check if alternative parts offer improved thermal performance or different packaging options while maintaining the same electrical specifications.