X9C103SZT2

Overview

The X9C103SZT2 is a non-volatile digital potentiometer IC from the X9C10 series, manufactured by Renesas Electronics. It features a single potentiometer with a nominal resistance of 10 kOhms and a linear taper. The device provides 100 tap points for precise resistance adjustment and utilizes a serial 3-wire interface (INC/UD/CS) for control. Powered by a 5 V supply, it operates within an industrial temperature range of -40°C to +85°C. The component is housed in an SOIC-8 surface-mount package and includes non-volatile memory to retain wiper position settings upon power cycling.

Feature Summary

• Non-volatile EEPROM storage retains wiper position data without external power
• 100-tap linear resistive element with ±20% end-to-end resistance tolerance
• Simple 3-wire serial control interface requiring minimal GPIO resources
• Industrial operating temperature range from -40°C to +85°C

Applications

• Analog signal conditioning and gain adjustment circuits
• Bias voltage regulation in sensor interfaces
• Audio volume or tone control systems
• LED brightness calibration and current limiting

Procurement Notes

Verify component authenticity through authorized distributors as the X9C10 series has undergone manufacturing site changes. Confirm RoHS compliance status via official datasheets. Check current availability as lead times may vary due to production cycles. Ensure the specific suffix 'T2' corresponds to the required reel packaging quantity of 2500 units.

Selection Notes

Select this model for applications requiring 10 kOhm resistance with 100 discrete steps. The SOIC-8 package suits surface-mount PCB designs. Verify that the 3-wire interface timing constraints meet the microcontroller's GPIO capabilities. Consider the -40°C to +85°C temperature rating for industrial environments compared to commercial grade alternatives.

Part Context

The X9C103SZT2 belongs to the XDCP™ family of solid-state potentiometers. It serves as a CMOS-compatible replacement for mechanical potentiometers, offering higher reliability and immunity to vibration. The part integrates resistor arrays, wiper switches, and control logic into a compact 8-pin form factor.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.