LM431SCCMFX

Product Overview

The LM431SCCMFX from onsemi is an Active, surface-mount shunt voltage reference IC with adjustable output. It provides a minimum/fixed output voltage of 2.495 V and a maximum output voltage of 36 V. The device is specified with 100 mA output current, 1 mA cathode current, ±0.5% tolerance, and a typical temperature coefficient of 50 ppm/°C. It operates from -25°C to 85°C (TA) and is supplied in an SOT-23-3 flat leads package, with supplier device package SOT-23F-3.

Key Features

• Adjustable shunt reference with 2.495 V minimum/fixed output and 36 V maximum output.
• 100 mA output current and 1 mA cathode current.
• ±0.5% tolerance with 50 ppm/°C typical temperature coefficient.
• Surface-mount package: SOT-23-3 flat leads, supplier device package SOT-23F-3.
• Operating temperature range: -25°C to 85°C (TA).

Applications

• Adjustable reference voltage for analog measurement and signal-conditioning circuits.
• Reference input for power-supply control and voltage-monitoring circuits.
• Surface-mount shunt reference for space-constrained electronic assemblies.

Design & Procurement Notes

When selecting the LM431SCCMFX, verify that the circuit requirements match an adjustable shunt reference with a 2.495 V minimum/fixed output and a 36 V maximum output. Confirm that the load current remains within the 100 mA output current specification and that the 1 mA cathode current is compatible with the intended biasing or shunt operating point. The ±0.5% tolerance and 50 ppm/°C typical temperature coefficient should be compared with the stability needed across the -25°C to 85°C (TA) operating range. Because the device is surface-mount SOT-23-3 flat leads with supplier device package SOT-23F-3, check the PCB land pattern and assembly constraints. The Active status should be considered for long-term procurement planning.