SC431LC5SK-2TR

Overview

The SC431LC5SK-2TR is an adjustable shunt voltage reference manufactured by Semtech. It operates within a cathode voltage range of 1.24 V to 16 V and provides an initial accuracy of ±2%. The device supports a maximum cathode current of 100 mA with a minimum operating current of 100 µA. It is housed in a SOT-23-3 surface-mount package and functions reliably across a temperature range of 0°C to +70°C.

Feature Summary

• Adjustable output voltage capability via external resistive divider
• High precision initial accuracy for stable reference applications
• Low power consumption suitable for battery-operated systems

Applications

• Portable equipment requiring precise voltage regulation
• Battery-powered instrumentation circuits
• General-purpose voltage reference sources

Procurement Notes

Verify component status as obsolete through official Semtech channels. Confirm availability of surplus stock or alternative sourcing methods. Ensure compatibility with existing PCB footprints if replacing active inventory. Validate RoHS compliance documentation prior to procurement.

Selection Notes

Select this component when a low-cost, adjustable shunt reference is required in a compact SOT-23-3 package. Consider the ±2% initial accuracy and 16 V maximum voltage limit against circuit requirements. Evaluate thermal performance within the specified 0°C to +70°C operating range for the intended application environment.

Part Context

This part belongs to the SC431 series of adjustable shunt regulators. It serves as a cost-effective solution for voltage referencing in consumer electronics. The SOT-23-3 packaging allows for space-constrained designs. It competes with industry-standard zener-based references offering improved stability.

Replacement Considerations

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