IS2801-1

Overview

The IS2801-1 is a single-channel optically coupled isolator from the IS280 series, manufactured by Isocom Components. It integrates a Gallium Arsenide (GaAs) infrared light-emitting diode and an NPN silicon phototransistor within a compact plastic SSOP package. Designed for high-density mounting applications, the device provides electrical isolation between input and output circuits. The component features a half-pitch of 1.27 mm, facilitating surface-mount assembly on printed circuit boards.

Feature Summary

• Integrates a GaAs LED and NPN phototransistor for optical signal transmission
• Compact SSOP package with 1.27 mm half-pitch for high-density mounting
• Includes shielding effect to cut off ambient light interference

Applications

• Hybrid substrates requiring high-density mounting
• Programmable controllers
• General-purpose digital isolation

Procurement Notes

Verify the specific manufacturer designation, as the PS2801 series is often associated with Renesas Electronics while the IS2801 series is linked to Isocom Components. Confirm that the requested part number corresponds to the Isocom Components datasheet rather than the Renesas equivalent to ensure correct sourcing and documentation alignment.

Selection Notes

Select this component when a single-channel isolation solution with a narrow SSOP footprint is required. The 1.27 mm pitch makes it suitable for space-constrained designs. Ensure the application does not require the four-channel configuration offered by the IS2801-4 variant.

Part Context

The IS2801-1 belongs to the IS280 series of compact optocouplers. This family is characterized by its small plastic SSOP packages available in 4-pin and 16-pin configurations. The series is engineered to support high-density electronic assemblies where board space is limited.

Replacement Considerations

The PS2801-1 is a functionally similar single-channel optocoupler in an SSOP-4 package. Verify pinout compatibility and isolation voltage ratings before substitution.