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ISL43L420IRZ is listed in the Analog Switches, Multiplexers, Demultiplexers range at ChipApex. The manufacturer field lists Renesas Electronics Corporation. Its product description is IC SWITCH SPDT X 4 450OHM 16QFN. Review the specifications below when checking this part for your BOM.
The ISL43L420IRZ is a quad single-pole double-throw (SPDT) analog switch manufactured by Renesas Electronics Corporation. It features ultra-low on-resistance and operates from a single supply voltage ranging from +1.1V to +4.5V. The device integrates four independent bidirectional switches within a compact 16-pin QFN package, designed for low-voltage applications requiring minimal signal distortion.
This component is officially obsolete and no longer manufactured by Renesas Electronics Corporation. Procurement should focus on verified substitute part numbers listed in official cross-reference documents. Availability is limited to existing stock or third-party distributors; verify authenticity and condition carefully before purchase.
Select this component only if its specific +1.1V to +4.5V single-supply range and quad SPDT topology match the design requirements. Due to obsolescence, engineers must evaluate alternative parts with compatible electrical parameters and pinout configurations to ensure seamless integration into new or replacement designs.
The ISL43L420IRZ belongs to the Intersil/Renesas ISL43L4xx series of low-voltage analog switches. This family is characterized by CMOS technology optimized for portable and battery-operated equipment. The device represents a transition period product from the Intersil acquisition era, now managed under Renesas Electronics.
Public confirmed substitutes include Analog Devices Inc. ADG1213YCPZ-500RL7. Verify pin compatibility and electrical specifications when transitioning to alternative manufacturers to maintain circuit performance.
No, the ISL43L420IRZ is obsolete and no longer manufactured by Renesas Electronics Corporation.
The device operates from a single supply voltage up to +4.5V.
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