X9C103ST1

Overview

The X9C103ST1 is a non-volatile digital potentiometer IC manufactured by Renesas Electronics Corporation. It features a single circuit with a total resistance of 10 kOhms and 100 taps, offering linear taper characteristics. The device utilizes an Up/Down (U/D, INC, CS) serial interface for control and operates on a 5V supply voltage. Packaged in an 8-SOIC surface-mount format, it supports a commercial operating temperature range of 0°C to 70°C. The component exhibits a typical temperature coefficient of ±300ppm/°C and a contact resistance of 40 Ohms.

Feature Summary

• Non-volatile memory retains wiper position data without power
• Serial three-wire interface for simplified system integration
• Linear resistance taper for precise analog signal adjustment

Applications

• Volume control in audio equipment
• Gain adjustment in instrumentation circuits
• Voltage reference setting in power supplies

Procurement Notes

Verify the obsolete status of this specific part number before procurement planning. Confirm if the manufacturer has issued a formal discontinuation notice or if the component is simply out of production. Ensure that any replacement strategy accounts for long-term availability constraints associated with legacy components.

Selection Notes

Select this component only if a 10kOhm resistance value and 100-tap resolution are required. Verify compatibility with the 5V logic level and SOIC-8 footprint. Consider the non-volatile feature necessity versus volatile alternatives. Check RoHS compliance requirements against the specific manufacturing batch date codes available.

Part Context

This component belongs to the X9C10 series of digital potentiometers from Renesas. It shares architectural similarities with other members like the X9C102 and X9C104, differing primarily in total resistance values. The ST1 suffix indicates a specific tape-and-reel packaging configuration within the broader product family.

Replacement Considerations

• X9C103SZT1