SC431LC5SK-1TRT.P2

Overview

The SC431LC5SK-1TRT.P2 is an adjustable shunt voltage reference manufactured by Semtech Corporation. It operates within a cathode current range of 100 µA to 100 mA and provides an adjustable output voltage from 1.24 V to 16 V. The device features an initial accuracy tolerance of ±0.5% and is housed in a SOT-23-3 surface-mount package. It is designed for industrial temperature ranges, though specific thermal limits vary by variant.

Feature Summary

• Adjustable shunt regulation with wide operating current range
• High precision initial accuracy tolerance
• Low dynamic output impedance for stable performance
• Compatible with standard SOT-23-3 surface mount packaging

Applications

• Linear regulators
• Adjustable power supplies
• Switching power supplies
• Battery operated computers
• Instrumentation systems

Procurement Notes

Verify component authenticity through authorized Semtech distributors or certified partners. Confirm the exact suffix matches the required tolerance and packaging specifications. Check for obsolescence status as availability may be limited. Ensure compliance with RoHS and WEEE directives if required for your region. Validate datasheet revisions against the manufacturing date code.

Selection Notes

Select this component when precise voltage referencing is required in space-constrained designs. The SOT-23-3 package offers a compact footprint suitable for dense PCB layouts. Consider the ±0.5% accuracy for applications demanding tighter tolerances than standard zener diodes. Evaluate the 100 mA maximum cathode current against load requirements. Verify thermal stability needs against the specified operating temperature range.

Part Context

This part belongs to the SC431 family of three-terminal adjustable shunt regulators. It serves as a direct replacement for industry-standard references like TL431 and LM431. The series is known for trimmed bandgap design and low dynamic output impedance. Semtech manufactures these components to meet rigorous quality standards for power management applications.

Replacement Considerations

Direct substitutes include TL431, LM431, AS431, and LT1431 variants. Verify pinout compatibility and electrical parameters before substitution. Ensure the alternative device supports the required output voltage range and current capabilities. Check package dimensions for mechanical fit in existing designs.