TL4051C12QDCKT

Overview

The TL4051C12QDCKT is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 1.225V with an initial tolerance of ±0.5%. The device operates within an extended temperature range of -40°C to +125°C and utilizes a compact SC-70-5 surface-mount package. Designed for low-power applications, it maintains stability across a wide operating current range without requiring external output capacitors.

Feature Summary

• Fixed 1.225V output option with ±0.5% initial tolerance
• Extended industrial temperature range from -40°C to +125°C
• Micropower operation suitable for battery-supplied equipment
• Stable under all capacitive load conditions without external compensation

Applications

• Data acquisition systems
• Portable instrumentation
• Battery-powered devices
• Process control loops

Procurement Notes

Verify the specific suffix 'DCKT' corresponds to the SC-70-5 tape-and-reel packaging configuration. Confirm the 'Q' designation indicates the extended temperature grade (-40°C to +125°C) required for your environmental specifications. Ensure the C-grade tolerance (±0.5%) meets your circuit accuracy requirements before finalizing procurement.

Selection Notes

Select this component when a stable 1.225V reference is needed in space-constrained designs. The SC-70-5 package offers a smaller footprint compared to SOT-23 alternatives. Choose this part over adjustable variants if a fixed reference simplifies the bill of materials. Verify that the micropower consumption aligns with the system's energy efficiency targets.

Part Context

This device belongs to the TL4051 family of precision shunt voltage references. The family includes both fixed and adjustable output versions available in SOT-23 and SC-70 packages. The TL4051 series is designed to replace bulkier reference solutions while maintaining high accuracy and low noise performance in portable and industrial applications.

Replacement Considerations

Check for direct pin-compatible equivalents within the same family, such as other TL4051 variants with different tolerances or temperature grades. Verify that any substitute matches the SC-70-5 package dimensions and electrical characteristics.