ISD204XG

Transistor, Photovoltaic Output Optoisolators Overview

The ISD204XG is a single-channel optically coupled isolator manufactured by Isocom Components. It integrates an infrared emitting diode with an NPN silicon phototransistor in a space-efficient dual-in-line plastic package. The device provides high isolation voltage of 5.3 kVrms and 7.5 kV peak, ensuring robust signal transmission between systems with different potentials. Key electrical characteristics include a minimum current transfer ratio of 50% and a collector-emitter breakdown voltage (BVCEO) of at least 70V. Designed for low input current operation at 0.5mA IF, it supports applications requiring reliable galvanic isolation in industrial and computing environments.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates an infrared LED with an NPN silicon phototransistor for efficient optical coupling
• Provides high isolation voltage capability to protect circuits across potential differences
• Features low input current requirements for energy-efficient signal transmission
• Offers high current transfer ratio for reliable output switching

Transistor, Photovoltaic Output Optoisolators Applications

• Computer terminals
• Industrial system controllers
• Signal transmission between systems of different potentials and impedances

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix configuration against official Isocom documentation to ensure correct lead spread or mounting type. Confirm compliance certifications such as UL or VDE if required for your target market. Cross-reference the datasheet for thermal derating curves and absolute maximum ratings before finalizing the design. Ensure the packaging format matches your assembly requirements.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage and low input current are critical. The NPN phototransistor output suits digital logic interfacing. Consider the DIP package constraints for PCB layout. Compare current transfer ratio specifications against load requirements to ensure adequate noise margin in noisy industrial environments.

Transistor, Photovoltaic Output Optoisolators Part Context

The ISD204 series belongs to Isocom's family of low input current phototransistor optocouplers. It shares functional similarities with the IS204 and ISQ204 variants, differing primarily in package style or specific mechanical dimensions. This series is designed for general-purpose isolation where compact size and high reliability are prioritized over high-speed switching capabilities.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Check for direct pin-compatible substitutes within the ISOCOM portfolio, such as IS204XG or ISQ204XG, verifying package and electrical parameter equivalence. External replacements require matching isolation voltage, CTR, and BVCEO specs.