TL431CLPRE3

Overview

The TL431CLPRE3 is an adjustable shunt voltage reference from Texas Instruments, housed in a TO-92-3 through-hole package. It provides an output voltage range of 2.495 V to 36 V with an initial accuracy of ±2%. The device features a maximum temperature coefficient of 92 ppm/°C and supports a maximum cathode current of 100 mA. It operates within a temperature range of -40°C to +125°C and has a maximum input voltage of 36 V.

Feature Summary

• Adjustable shunt regulation topology for precision voltage referencing
• Wide operating temperature range suitable for industrial environments
• Through-hole TO-92-3 packaging for standard board integration

Applications

• Precision voltage references in power supply circuits
• Programmable linear regulators
• Battery management systems requiring stable reference voltages

Procurement Notes

Verify component authenticity against the manufacturer's official datasheet specifications. Confirm that the received parts match the exact part number TL431CLPRE3, as suffixes indicate specific packaging or quality grades. Check for end-of-life status notifications from Texas Instruments prior to final procurement decisions to ensure long-term availability.

Selection Notes

Select this component when a through-hole adjustable reference with ±2% accuracy is required. Ensure the design accommodates the -40°C to +125°C operating range. Verify that the circuit can handle the 100 mA maximum cathode current. Consider alternative packages if surface-mount space is limited, as this model uses TO-92-3.

Part Context

This component belongs to the TL431 series of programmable shunt regulators. It serves as a low-cost, high-performance alternative to fixed voltage references. The device integrates a bandgap reference and error amplifier to maintain precise output voltage control across varying load and temperature conditions.

Replacement Considerations

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