X9C103SIZT2

Overview

The X9C103SIZT2 is a single-channel digital potentiometer IC from the X9C10 series, manufactured by Renesas Electronics. It features a 10 kΩ end-to-end resistance with a linear taper and 100 tap points. The device utilizes a non-volatile memory architecture to store wiper positions, enabling power-on recall. It operates on a 5 V supply (4.5 V to 5.5 V range) with a maximum active current of 1 mA. The component interfaces via a 3-wire serial protocol and is housed in an 8-lead SOIC package.

Feature Summary

• Non-volatile memory retains wiper position data for 100 years
• 100-tap resolution with ±20% resistance tolerance
• 3-wire serial interface (CS, U/D, INC)
• Operates within -40°C to +85°C temperature range

Applications

• Parameter adjustment in control circuits
• Signal processing applications requiring programmable resistance
• Volume control in audio circuits

Procurement Notes

The X9C103SIZT2 is listed as a discontinued product by Renesas Electronics. Availability is limited to existing stock or secondary market sources. Verification of authenticity and lot traceability is critical when sourcing from distributors other than authorized channels due to the obsolescence status.

Selection Notes

Select this component for applications requiring a simple 3-wire interface and non-volatile storage without SPI complexity. Ensure the 10 kΩ resistance value and 100-tap resolution meet circuit requirements. Verify that the 5 V supply voltage aligns with the system design, as the device does not support lower voltage operation down to 2.7 V like newer XDCP models.

Part Context

This part belongs to the X9C10 family of digitally controlled potentiometers, which also includes variants such as X9C102, X9C104, and X9C503. These devices share similar architectural features but differ in resistance values and specific interface implementations. The X9C103 specifically denotes the 10 kΩ resistance variant within this lineage.

Replacement Considerations

Direct replacements may include X9C103SZ or X9C103SIZT1, which share identical electrical specifications and pinouts. For updated features, consider the X9110 series, though it requires an SPI interface and offers higher resolution.