ISP621-4

Transistor, Photovoltaic Output Optoisolators Overview

The ISP621-4 is a high-density, four-channel phototransistor optocoupler manufactured by Isocom Components 2004 LTD. It integrates an infrared emitting diode and NPN silicon phototransistors within a single 16-pin DIP package. The device provides electrical isolation with a rated voltage of 5300Vrms. It supports DC input signals and offers a collector-emitter voltage rating of 55V. Typical switching characteristics include a rise time of 2μs and a fall time of 3μs. The unit operates reliably across a temperature range from -30°C to 100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Four independent channels integrated into a compact 16-pin dual in-line package for space-efficient circuit design
• High-voltage electrical isolation capability suitable for separating signal grounds between circuits
• Utilizes NPN silicon phototransistor output technology for reliable digital signal transmission

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring multi-channel signal isolation
• Power supply units needing feedback loop isolation
• Data communication interfaces for noise immunity
• Microprocessor input/output expansion modules

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm pinout compatibility and insulation class. Ensure the procurement source provides valid traceability records. Confirm that the component meets the required isolation voltage ratings for your specific safety standards before integration into final equipment designs.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multiple isolated channels are required in a limited footprint. The 16-pin DIP format facilitates through-hole mounting on standard PCB layouts. Consider the 5300Vrms isolation rating for applications demanding robust separation between high-voltage and low-voltage domains. Evaluate the switching speed requirements against the typical 2μs rise time specifications.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the ISP621 series, which focuses on providing cost-effective solutions for multi-channel isolation needs. Isocom Components positions these devices as alternatives to discontinued or hard-to-find industry-standard optocouplers. The series maintains compliance with global safety standards while offering flexible manufacturing options.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The TLP621-4GB is a confirmed substitute part number for this component. Verify mechanical dimensions and electrical parameters against the original datasheet to ensure functional equivalence in the target application.