TL431KC-TP

Overview

The TL431KC-TP is a programmable precision shunt voltage reference manufactured by Micro Commercial Components (MCC). It operates within a cathode-to-anode voltage range of up to 36 V and provides an adjustable output voltage starting from a minimum fixed reference of 2.495 V. The device supports a maximum sink current of 50 mA with a typical cathode current of 1 mA. It features a tight initial accuracy tolerance of ±0.4% and is housed in a surface-mount SOT-23 package. The component is rated for operation across an extended temperature range from -40°C to 125°C.

Feature Summary

• Provides high-precision programmable voltage regulation with low dynamic output impedance characteristics
• Offers wide operational flexibility through adjustable output voltage settings using external resistors
• Ensures thermal stability and reliable performance across extended industrial temperature ranges

Applications

• Precision voltage references in power supply circuits
• Shunt regulators for linear and switching power supplies
• Portable equipment requiring compact surface-mount solutions

Procurement Notes

Verify the specific suffix and marking codes against official MCC documentation to confirm the ±0.4% tolerance variant. Ensure compatibility with SOT-23 footprint requirements during PCB layout. Confirm RoHS compliance status and REACH registration details prior to final procurement decisions.

Selection Notes

Select this component when precise voltage referencing is required in space-constrained designs. The SOT-23 package offers a compact form factor suitable for dense layouts. Consider the ±0.4% tolerance for applications demanding higher accuracy than standard variants. Verify that the 50 mA sink current capability meets the circuit's load requirements.

Part Context

This part belongs to the TL431 family of programmable shunt regulators, widely used as voltage references and error amplifiers. The KC suffix typically denotes specific tolerance and packaging variations within the MCC portfolio. It serves as a direct replacement for industry-standard TL431 devices in various power management applications.

Replacement Considerations

TL431K-TP is listed as a discontinued alternative; verify functional equivalence before substitution.