ISP824

Overview

The ISP824 is a high-density AC input phototransistor optically coupled isolator manufactured by Isocom Components 2004 Ltd. This dual-channel device features a maximum insulation voltage of 5300 V and operates within a temperature range of -55 °C to 100 °C. It supports a maximum forward current of 50 mA and provides a minimum current transfer ratio of 20%. The collector-emitter breakdown voltage is rated at 35 V, ensuring reliable signal isolation in demanding electronic environments.

Feature Summary

• High-density AC input phototransistor design for efficient space utilization
• Dual-channel configuration providing independent signal isolation paths
• Robust electrical isolation capability with high insulation voltage rating
• Polarity insensitive input operation simplifying circuit integration

Applications

• Industrial control systems requiring galvanic isolation
• Signal transmission between microprocessors and peripheral devices
• Power supply feedback loops for noise immunity
• Solid-state relay driver circuits

Procurement Notes

Verify the specific package variant (DIP or SMD) required for your assembly process, as the ISP824 series includes both through-hole and surface-mount options. Confirm that the 5.3 kVrms isolation rating meets your safety standards. Ensure the operating temperature range aligns with your environmental conditions. Check for tape and reel availability if automated placement is planned.

Selection Notes

Select this component when dual-channel isolation with AC input compatibility is necessary. The 50 mA forward current limit suits standard logic-level driving applications. Consider the 35 V collector-emitter voltage for low-voltage output switching tasks. The wide operating temperature range makes it suitable for industrial environments where thermal stability is critical for long-term reliability.

Part Context

The ISP824 belongs to the ISP824X family of optocouplers from Isocom Components 2004 Ltd. This series focuses on providing cost-effective solutions for optoelectronic isolation needs. The manufacturer specializes in infrared optoelectronic devices, leveraging over four decades of industry expertise to produce reliable components for global electronics markets.

Replacement Considerations

Direct substitutes may include other dual-channel phototransistor optocouplers with similar 5.3 kV isolation ratings. Verify pinout compatibility before substitution. Alternative models from the same manufacturer, such as those in the ISP814X series, offer comparable performance characteristics.