3 V shunt reference in SOT-23-3 — selection anchor
It operates as a two-terminal shunt device, requiring only a series resistor from the supply to set the bias current — no external bypass capacitor needed for stability. The 15 mA output current and 82 µA cathode current define the operating window: the series resistor must be chosen so the cathode current stays above 82 µA to maintain regulation, while the total load plus bias current does not exceed 15 mA.
Temperature drift and noise floor
Broadband noise is specified at 35 µVrms over 10 Hz to 10 kHz, making it suitable for low-noise analog rails and ADC references where the noise budget is a few hundred microvolts.
Package and mounting — SOT-23-3
Housed in a 3-lead SOT-23-3 package (also known as TO-236-3 / SC-59), this part is a surface-mount device with a 0.95 mm pin pitch. The small footprint suits space-constrained boards, but the thermal dissipation is limited — the 15 mA output at 3 V means the device dissipates up to 45 mW, which is within the SOT-23-3's capability at 85°C with standard PCB copper.