The LM385AYZ-2.5 is a shunt voltage reference diode designed for precision voltage regulation. It has a fixed output voltage of 2.5V with a tolerance of ±3%. The temperature coefficient is 20ppm/°C, ensuring stable performance over a wide temperature range of 0°C to 70°C. The LM385AYZ-2.5 can provide an output current of 20mA and has a low cathode current of 20μA. This voltage reference diode is housed in a TO-92-3 package, allowing for easy through-hole mounting. With a noise level of 120μVrms in the frequency range of 10Hz to 10kHz, it offers excellent noise performance. The LM385AYZ-2.5 is an active product and is widely used in integrated circuits for power management and voltage reference applications.