IS725

Transistor, Photovoltaic Output Optoisolators Overview

The IS725 is a single-channel optically coupled isolator featuring an infrared LED input and a high-voltage NPN silicon photodarlington output. It integrates an internal base-emitter resistor to optimize switching speed and elevated temperature performance. The device provides high isolation voltage of 5.3kVRMS (7.5kVPK) and a minimum current transfer ratio of 1000%. It supports a collector-emitter breakdown voltage of 300V minimum with low dark current. Available in standard 6-pin DIP, surface mount, or tape-and-reel configurations.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates an internal base-emitter resistor on the photodarlington output to enhance switching speed and thermal stability.
• Delivers high isolation capability with 5.3kVRMS insulation voltage and 7.5kVPK peak rating.
• Features high current transfer ratio with a minimum specification of 1000% for efficient signal transmission.
• Supports high collector-emitter breakdown voltage of 300V minimum with low dark current characteristics.

Transistor, Photovoltaic Output Optoisolators Applications

• Modems
• Copiers and facsimiles
• Numerical control machines
• Signal transmission between systems of different potentials and impedances

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific package variant required for production, as the IS725 series offers multiple configuration options including standard through-hole DIP, surface mount (SM suffix), and tape-and-reel (SMT&R suffix). Confirm that the selected variant meets the mechanical constraints of the target PCB layout. Ensure the ordering part number explicitly reflects the chosen packaging style to avoid fulfillment errors regarding lead times or handling requirements.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select the IS725 when high current transfer ratio and high voltage isolation are critical for the application. The integrated base-emitter resistor makes it suitable for applications requiring faster switching speeds compared to standard phototransistors. Consider the 300V BVCEO rating for high-side switching or interface isolation tasks. Evaluate the available package options, including surface mount variants, to align with assembly processes and spatial constraints within the electronic design.

Transistor, Photovoltaic Output Optoisolators Part Context

The IS725 belongs to Isocom Components' portfolio of high-voltage Darlington output optocouplers. It is designed to replace generic industrial standard models, offering direct compatibility with common market requirements. The component utilizes a plastic dual in-line package structure, available in various pin counts and mounting styles to support diverse manufacturing needs across industrial and consumer electronics sectors.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Cross-reference with other high-voltage Darlington optocouplers such as the H11G1 series if alternative sourcing is needed. Verify pinout compatibility and electrical parameters like CTR and BVCEO before substitution. Check for equivalent surface mount or tape-and-reel availability from other manufacturers to ensure supply chain flexibility without compromising isolation or switching performance specifications.