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ISP321-1XSMT&R is listed in the Transistor, Photovoltaic Output Optoisolators range at ChipApex. The manufacturer field lists Isocom Components 2004 LTD. Its product description is OPTOISOLTR 5.3KV 1CH TRANS 4-SMD. Review the specifications below when checking this part for your BOM.
The ISP321-1XSMT&R is a single-channel optocoupler manufactured by Isocom Components 2004 LTD. It features a surface-mount SMPDIP-4 package with four pins. The device provides an isolation voltage of 5.3 kVrms and supports a maximum forward current of 50 mA. It utilizes a transistor output configuration, ensuring reliable signal transmission across isolated circuits while maintaining high voltage withstand capabilities for industrial applications.
Verify the exact suffix 'SMT&R' to confirm surface-mount tape-and-reel packaging. Ensure compatibility with the specified 5.3 kVrms isolation rating for your circuit requirements. Confirm pinout alignment with the SMPDIP-4 footprint during PCB layout. Check RoHS compliance status if required by your manufacturing standards.
Select this component when a compact, surface-mount solution is needed for single-channel isolation. The 5.3 kVrms rating suits applications requiring robust electrical separation. Consider the transistor output type for digital switching interfaces. Verify thermal management needs based on the 50 mA forward current limit.
Isocom Components specializes in infrared optoelectronic devices, including optocouplers and phototransistors. The ISP321 series represents their standard replacement offerings for common commercial optocoupler types. These components are designed to meet global industry standards and provide alternatives for obsolete parts from other manufacturers.
Direct substitutes may include equivalent single-channel transistor-output optocouplers in SOP-4 or DIP-4 packages with similar 5 kV+ isolation ratings. Verify pin-to-pin compatibility and CTR specifications before substitution.
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