TL4051B12IDCKT

Overview

The TL4051B12IDCKT is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 1.225V with an initial accuracy tolerance of ±0.2%. The device operates within an extended industrial temperature range from -40°C to +125°C and utilizes a compact SC-70 (SOT-323) surface-mount package. Designed for low-power applications, it requires minimal operating current while maintaining stability across various capacitive loads without the need for external output capacitors.

Feature Summary

• Fixed 1.225V output voltage with high precision
• Extended industrial temperature operation capability
• Micropower consumption suitable for battery systems
• Stable performance without requiring output capacitors

Applications

• Data acquisition systems
• Portable instrumentation
• Battery-powered equipment
• Process control systems

Procurement Notes

Verify that the specific part number matches the required package type and temperature grade. Confirm the suffix indicates the correct reel quantity and tape configuration for automated assembly processes. Ensure compliance with RoHS standards and lead-free requirements as specified in the official datasheet documentation before finalizing procurement orders.

Selection Notes

Select this component when a fixed 1.225V reference is required with ±0.2% initial accuracy. It is suitable for designs needing extended temperature operation up to 125°C. Consider the SC-70 package size for space-constrained layouts. Compare against adjustable variants if voltage flexibility is needed instead of a fixed output.

Part Context

This part belongs to the TL4051 family of precision micropower shunt voltage references. The family offers fixed and adjustable output options with varying accuracy grades. The TL4051 series is designed to replace higher power zener diodes in low-voltage applications, providing superior noise performance and lower temperature coefficients compared to traditional reference solutions.

Replacement Considerations

Compatible substitutes include TL4051A12IDCKT for tighter accuracy or TL4051C12IDCKT for cost-sensitive applications. Verify pinout compatibility and thermal characteristics when transitioning between different accuracy grades within the same package family.