NJU7301D

Overview

The NJU7301D is a quad SPST analog switch IC manufactured by Nisshinbo Micro Devices Inc. It features four independent channels with a maximum on-resistance of 200 ohms and supports dual supply voltages up to ±15V, with an absolute maximum rating of 44V across the supply rails. The device utilizes CMOS technology and includes TTL or CMOS compatible inputs. Key electrical parameters include a maximum turn-on time of 600ns, a maximum turn-off time of 450ns, and a charge injection of 20pC. It operates within a temperature range of 0°C to +70°C and is housed in a 16-DIP package.

Feature Summary

• High breakdown voltage capability up to 44V for robust operation
• CMOS technology ensuring compatibility with standard logic families
• Quad single-pole single-throw (SPST) configuration for signal routing

Applications

• Signal multiplexing and demultiplexing in data acquisition systems
• Audio and video signal switching applications
• Test and measurement equipment requiring isolated signal paths

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches the required package type, as DIP variants are designated as Not Recommended for New Design (NRND). Ensure compliance with RoHS directives if applicable to your manufacturing process. Request official datasheets and quality certificates prior to finalizing orders to guarantee specification adherence.

Selection Notes

Select this component when a quad SPST switch with moderate on-resistance is required. Consider the NRND status of the DIP package for long-term design viability; alternative surface-mount packages like DMP-16 may be preferred for new designs. Evaluate power dissipation limits relative to ambient temperature and ensure input thresholds align with the control logic voltage levels used in the system.

Part Context

The NJU7301 belongs to the NJU7301 series of analog switches from Nisshinbo Micro Devices. This series is part of the company's broader portfolio of interface ICs designed for general-purpose signal switching. The manufacturer, formed from the integration of New Japan Radio and Ricoh Micro Devices, specializes in analog solutions including operational amplifiers and power management ICs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Note that the DIP16 package version is classified as Not Recommended for New Design (NRND) as of February 2023. Designers should evaluate the DMP-16 surface mount variant or other compatible quad SPST switches from the manufacturer's current lineup for new projects.