ISD74

Transistor, Photovoltaic Output Optoisolators Overview

The ISD74 is a dual-channel optocoupler from the Isocom ISD series, housed in an 8-pin PDIP package. It features DC input and logic IC output configurations with open collector outputs. The device provides high isolation voltage of 5.3kVrms and operates within a temperature range of -25°C to 100°C. Key electrical parameters include a maximum forward voltage of 1.65V, typical rise time of 2.6μs, and typical fall time of 2.2μs. Current transfer ratio ranges from 12.5% minimum to 400% maximum, supporting up to 50mA input current.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel configuration for independent signal isolation
• High isolation voltage capability for safety-critical applications
• Open collector output structure compatible with logic circuits
• Hermetically sealed ceramic construction for reliability

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring galvanic isolation
• Logic interface circuits between different voltage domains
• Signal transmission in noise-sensitive environments
• Power supply feedback loops for isolation monitoring

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm that the received parts match the specified ISD74 designation and packaging details. Check for proper labeling indicating compliance with CECC 0080, EN60950, UL, and VDE 0884 standards. Ensure storage conditions maintain the hermetic seal integrity and prevent moisture ingress before use.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when dual-channel isolation with high current transfer ratio is required. Consider the 5.3kVrms isolation rating for safety applications. Evaluate the operating temperature range suitability for the intended environment. Compare timing characteristics against system speed requirements. Verify package compatibility with existing PCB layouts and assembly processes.

Transistor, Photovoltaic Output Optoisolators Part Context

The ISD74 belongs to Isocom's ISD series of high-reliability optocouplers designed for demanding applications. These components utilize LED-to-phototransistor technology within ceramic packages for enhanced durability. The series emphasizes robust performance in industrial and commercial environments where long-term stability and isolation integrity are critical design factors.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Cross-reference with other Isocom ISD series variants for similar channel counts and isolation ratings. Verify pinout compatibility and electrical parameter overlaps before substitution. Consult official replacement lists for discontinued equivalents. Ensure any alternative maintains the same certification approvals if regulatory compliance is required.