TL431AMSDT,215

Overview

The TL431AMSDT,215 is a three-terminal shunt adjustable precision reference manufactured by NXP Semiconductors. It operates within an output voltage range of 2.4 V to 36 V and supports a maximum cathode current of 100 mA with a maximum input voltage of 37 V. The device features an initial accuracy of 0.5% and functions across a temperature range of -40 °C to +125 °C. Packaged in the SOT-23 (TO-236-3) surface-mount format, it utilizes a tape and reel supply method.

Feature Summary

• Provides stable reference voltage via external resistor setting
• Ensures high precision with 0.5% initial accuracy tolerance
• Supports wide operating temperature range for industrial use

Applications

• Precision power supplies
• Voltage regulation circuits
• Portable equipment power management

Procurement Notes

Verify the specific suffix '215' corresponds to the required tape and reel packaging configuration. Confirm that the 0.5% accuracy grade meets system requirements. Ensure the SOT-23 footprint matches the target PCB layout. Validate RoHS compliance status against current regulatory standards.

Selection Notes

Select this component when precise voltage referencing is required in space-constrained designs. The SOT-23 package offers compact surface-mount integration. The wide temperature range suitability makes it appropriate for demanding environments where standard commercial grades may fail.

Part Context

This part belongs to the widely adopted TL431 family of programmable shunt regulators. It serves as a direct replacement for legacy discrete zener diode references, offering superior stability and lower dynamic impedance. The device integrates a bandgap reference and error amplifier into a single three-terminal package.

Replacement Considerations

Compatible substitutes include the TL431BMSDT,215 for identical performance with potentially different batch characteristics. The TL431CMSDT,215 provides a 1% accuracy variant if tighter tolerances are not required.