ISP521-4SM

Transistor, Photovoltaic Output Optoisolators Overview

The Isocom Components ISP521-4SM is a high-density mounting phototransistor optically coupled isolator. It integrates an infrared light emitting diode and an NPN silicon photo transistor within a compact Dual In Line Plastic Package. The device provides electrical isolation between input and output circuits via optical transmission. Key parameters include a maximum forward voltage of 1.3V, a typical rise time of 4μs, and a typical fall time of 3μs. It supports a maximum input current of 50mA and offers a minimum isolation voltage of 5300Vrms. The component operates within a temperature range of -30°C to 100°C and features a single channel configuration with four pins.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates an infrared LED and NPN silicon phototransistor for signal isolation
• Designed for high-density mounting applications in space-constrained environments
• Provides robust electrical isolation through optical coupling mechanism

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring circuit isolation
• Power supply units needing feedback isolation
• Communication interfaces for noise immunity

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the manufacturer part number against official Isocom Components documentation to ensure authenticity. Confirm that the package type and pin configuration match the required PCB layout specifications. Check for specific suffix variations that may indicate different packaging or compliance standards. Ensure the component meets the necessary safety certifications for the intended application environment before procurement.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when space efficiency and high isolation voltage are critical requirements. Consider the operating temperature range and speed characteristics for timing-sensitive applications. Evaluate the compatibility with existing circuit designs regarding input current limits and output transistor capabilities. Compare alternative models within the TLP521 series if specific parameter adjustments are needed for the target system.

Transistor, Photovoltaic Output Optoisolators Part Context

The ISP521-4SM belongs to the broader family of phototransistor optocouplers manufactured by Isocom Components. This series is characterized by its use of infrared LEDs and NPN phototransistors in plastic DIP packages. The component serves as an isolation device in electronic circuits, replacing traditional transformer-based solutions with smaller, more efficient optical alternatives suitable for modern electronics manufacturing.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

TLP521-4XSM