CAT5119TBI50T-MP

Digital Potentiometers Overview

The CAT5119TBI50T-MP is a single-channel digital potentiometer from onsemi, featuring a 50 kΩ resistance value and 32 adjustable taps. It utilizes a 2-wire serial interface for control and operates within a supply voltage range of 2.7 V to 5.5 V. The device employs volatile memory, requiring power restoration to retain settings. Packaged in a compact SC-70-6 surface-mount format, it supports an operating temperature range from -40 °C to +85 °C with a linear taper characteristic.

Digital Potentiometers Feature Summary

• Single-channel digital potentiometer with 50 kΩ nominal resistance
• 32-tap resolution controlled via 2-wire serial interface
• Volatile wiper memory retains setting only while powered
• SC-70-6 package suitable for space-constrained PCB designs

Digital Potentiometers Applications

• Volume control in portable audio equipment
• Gain adjustment in sensor signal conditioning circuits
• Voltage reference trimming in measurement systems

Digital Potentiometers Procurement Notes

Verify the specific suffix 'MP' against official onsemi documentation to confirm if it denotes a manufacturing or packaging variant distinct from standard commercial parts like CAT5119SDI50GT3. Ensure the component matches the required 50 kΩ resistance and 32-tap specification before integration.

Digital Potentiometers Selection Notes

Select this component when a 50 kΩ linear digital potentiometer with 32 positions is required. The 2-wire interface minimizes pin count compared to I2C alternatives. Note that the volatile memory requires a power-up initialization sequence to set the desired resistance level after power loss.

Digital Potentiometers Part Context

This part belongs to the CAT511x family of 32-tap digital potentiometers. It shares the same core architecture as the CAT5110 and CAT5125 but differs in resistance value and configuration (variable resistor vs. potentiometer). The TBI suffix typically indicates the SC-70-6 package option.

Digital Potentiometers Replacement Considerations

CAT5119SDI50GT3: Verified equivalent with identical electrical specifications and SC-70-6 package. CAT5119TBI-50-T3: Alternative reel-packaged version of the same device.