ISD203SM

Transistor, Photovoltaic Output Optoisolators Overview

The ISD203SM is a single-element transistor output optocoupler manufactured by Isocom Components. It features a surface mount plastic package with six pins and provides high isolation voltage of 5300 Vrms. The device includes an infrared LED coupled to an NPN silicon phototransistor. Key electrical specifications include a minimum collector-emitter breakdown voltage (BVCEO) of 70 V, a nominal current transfer ratio of 100%, and a maximum forward current of 50 mA. The component is RoHS compliant and UL recognized.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High isolation voltage capability for safe signal transmission between different potentials
• Surface mount configuration for space-efficient circuit board integration
• NPN silicon phototransistor output for reliable switching applications

Transistor, Photovoltaic Output Optoisolators Applications

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

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'SM' confirms the surface mount plastic package variant rather than the standard DIP or hermetic ceramic versions. Confirm RoHS compliance status and UL recognition details against the latest official datasheet from Isocom Components. Ensure the ordering code matches the required lead spread or tape-and-reel options if applicable, as suffixes define physical packaging and handling characteristics.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage and compact surface mount form factor are required. The 70 V minimum BVCEO rating supports moderate voltage switching needs. Consider the 100% tested electrical parameters for quality assurance in critical industrial or computer terminal applications. Evaluate thermal management requirements based on the surface mount plastic package constraints.

Transistor, Photovoltaic Output Optoisolators Part Context

The ISD203SM belongs to the IS20*, ISD20*, and ISQ20* series of optically coupled isolators from Isocom Components. This family utilizes infrared light emitting diodes paired with NPN silicon photo transistors. The series offers various packaging options including dual in-line plastic, surface mount, and tape-and-reel configurations to suit different assembly requirements.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs by matching isolation voltage, current transfer ratio, and package dimensions before considering alternative components.