2.49 V shunt reference — the spec that sets the rail
The LM336MX-2.5/NOPB is a precision 2.49 V shunt voltage reference from Texas Instruments, in an 8-SOIC surface-mount package. It delivers a fixed 2.49 V output with ±4% tolerance, making it a drop-in reference for ADC bias, comparator thresholds, or regulator feedback dividers where a stable 2.5 V-class rail is needed.
Output current and cathode bias — load and minimum current
The shunt can source up to 10 mA of output current, which covers most low-power reference loads — a typical ADC reference input draws under 1 mA.
Temperature range and environment — indoor use only
It is not specified for industrial or automotive environments where extended temperature or AEC-Q qualification is required.