TS4041DILT-1.2

Overview

The TS4041DILT-1.2 is a micropower shunt voltage reference manufactured by STMicroelectronics, providing a stable fixed output of 1.225V. It operates within an industrial temperature range of -40°C to +85°C and features a maximum temperature coefficient of 150ppm/°C. The device offers high precision with tolerances of ±1% at 25°C and maintains stability under capacitive loads. It is housed in a compact SOT-23-3 surface-mount package, drawing a typical cathode current of 70 µA and capable of sourcing up to 12 mA.

Feature Summary

• Micropower operation with ultra-low operating current suitable for power-restricted designs
• High precision initial accuracy available in multiple tolerance grades including ±1%
• Stable performance when used with capacitive loads
• Industrial temperature range coverage from -40°C to +85°C

Applications

• Portable battery-powered equipment requiring low quiescent current
• Space-constrained circuit designs utilizing surface-mount technology
• Precision measurement systems requiring stable reference voltages
• Data acquisition systems needing accurate analog-to-digital conversion references

Procurement Notes

Verify the specific suffix DILT-1.2 to confirm the 1.225V output voltage and ±1% tolerance grade, as the TS4041 family includes other voltage options and accuracy levels. Ensure the SOT-23-3 package matches your PCB footprint requirements. Confirm RoHS compliance status if required for your manufacturing process. Check the latest datasheet for any packaging or labeling changes that may affect assembly.

Selection Notes

Select this component when a low-cost, space-saving shunt reference is needed for industrial applications. The 1.225V output is ideal for driving ADCs or comparators where a precise low-voltage reference is required. Consider the 150ppm/°C temperature coefficient against your system's thermal environment. The SOT-23-3 package offers a small footprint compared to larger through-hole alternatives.

Part Context

The TS4041 series belongs to STMicroelectronics' portfolio of micropower shunt voltage references designed for cost-sensitive and space-limited applications. These devices provide a stable reference voltage without the need for external components, making them suitable for integration into various analog circuits. The series is characterized by its low operating current and robust performance across the industrial temperature range.

Replacement Considerations

LM4041DYM3-1.2-TR is a confirmed substitute part number from Microchip Technology offering similar functionality.