The Nexperia TL431ACDBZR is a precision three-terminal shunt regulator from the TL431 family, offering a programmable output voltage from Vref (2.495 V) up to 36 V using just two external resistors. This A‑Grade device features a tight reference voltage tolerance of 1% (B‑Grade also available at 0.5%), with a typical temperature drift of only 9 mV from 0 °C to 70 °C. It supports a wide sink current range from 1 mA to 100 mA and provides low output noise along with a typical output impedance of 0.2 Ω. Qualified to AEC-Q100 Grade 1, the TL431ACDBZR is ideal for automotive and industrial applications such as shunt regulation, precision current limiting, constant current sinking, and isolated feedback loops in switch-mode power supplies (SMPS).