ISQ204XSM

Transistor, Photovoltaic Output Optoisolators Overview

The ISQ204XSM is a high-density, four-channel transistor output optically coupled isolator manufactured by Isocom Components. It integrates infrared light-emitting diodes with NPN silicon phototransistors in a space-efficient dual-in-line plastic package. The device provides electrical isolation between input and output circuits with a minimum collector-emitter breakdown voltage of 70V and an insulation voltage of 5300Vrms. Designed for robust performance, it operates within a temperature range of -25°C to 100°C and features a rated current transfer ratio of 75%.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Four independent channels integrated into a single compact package for high-density circuit design
• High isolation voltage capability ensuring safe signal transmission between disparate potentials
• Low input current requirements combined with high current transfer ratio for efficient operation

Transistor, Photovoltaic Output Optoisolators Applications

• Computer terminals requiring multi-channel signal isolation
• Industrial system controllers needing robust data transmission
• Signal transmission between systems of different potentials and impedances

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'XSM' against official manufacturer documentation to confirm surface mount configuration and tape-and-reel packaging details. Ensure compatibility with automated assembly processes if reel packaging is required. Cross-reference lead times and availability directly with authorized distributors as stock levels fluctuate.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multiple isolated channels are required in a limited board area. The four-channel architecture reduces component count compared to discrete single-channel solutions. Verify that the 70V collector-emitter breakdown voltage meets the load requirements of the target application circuit.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the IS204/ISD204/ISQ204 series of high-density phototransistor optically coupled isolators. The series offers various packaging options including through-hole and surface mount variants. These devices are designed to replace obsolete components while providing enhanced reliability and standardized pinouts for industrial applications.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes include other four-channel DIP-16 phototransistor optocouplers from major manufacturers such as Vishay or Broadcom. Verify pinout compatibility and isolation voltage ratings before substitution. Surface mount equivalents may require adapter boards or reflow profile adjustments.