TS4061BILT-1.25

Overview

The TS4061BILT-1.25 is a high-precision shunt voltage reference manufactured by STMicroelectronics, providing a fixed output of 1.25 V with an initial accuracy tolerance of ±0.2%. It operates within an industrial temperature range of -40°C to +85°C and features a maximum temperature coefficient of 35 ppm/°C. The device draws a typical operating current of 10 µA at 25°C and supports a cathode current up to 12 µA, with a maximum output current capability of 15 mA. Packaged in the compact SOT-323 (SC-70) surface-mount format, it exhibits low low-frequency noise characteristics, specified as 10 µVp-p from 0.1 Hz to 10 Hz.

Feature Summary

• Delivers stable fixed output voltage across the full industrial temperature range
• Provides high precision with tight initial accuracy tolerance for critical measurement applications
• Maintains stability when driving capacitive loads without oscillation
• Enables power-efficient designs through ultra-low quiescent operating current

Applications

• Portable battery-powered instrumentation requiring minimal standby drain
• Precision data acquisition systems demanding low noise references
• Space-constrained embedded circuits utilizing small footprint packages
• Industrial sensor signal conditioning interfaces

Procurement Notes

Verify the specific suffix 'I' indicates the SOT-323 package variant distinct from other pinouts. Confirm the '-1.25' designation matches the required 1.25 V output level rather than the alternative 1.225 V version. Check manufacturer documentation for any recent product change notices regarding lead-free compliance or moisture sensitivity levels before finalizing procurement specifications.

Selection Notes

Select this component when system design requires a balance between ultra-low power consumption and high DC accuracy. The SOT-323 package is suitable for applications where board space is limited compared to larger SOT-23 options. Ensure the load capacitance remains within stable operating limits defined in the datasheet to prevent potential instability issues during transient response conditions.

Part Context

This part belongs to the TS4061 family of micropower shunt voltage references designed for industrial environments. The series offers selectable accuracy grades, with the 'B' suffix denoting the ±0.2% tolerance tier. It serves as a compact alternative to traditional bandgap references, integrating precision regulation into a three-terminal surface-mount configuration optimized for modern PCB layouts.

Replacement Considerations

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