What this sensor does and where it fits
The AD22103KTZ is an analog-output temperature sensor from Analog Devices that delivers a linear voltage proportional to temperature at 28 mV/°C. It operates from a 2.7 V to 3.6 V supply. The sensing range is 0°C to 100°C. The through-hole TO-92-3 package is breadboard-friendly.
Accuracy over the range — ±2°C at 25°C, ±2.5°C worst-case
The datasheet specifies ±2°C accuracy at 25°C and ±2.5°C over the full 0°C to 100°C span. That is a single-point trimmed sensor with no external calibration required. For a BOM decision: if your system needs better than ±2°C across the band, you either add a software lookup correction or move to a higher-grade digital sensor. For simple over-temperature alarms or trend monitoring, this accuracy is adequate and saves the cost of a reference resistor network.
Lifecycle and compliance — active, ROHS3, no LTB watch
Analog Devices lists this part as Active with ROHS3 compliance. For a BOM freeze, this is a low-risk line item — no imminent obsolescence, no lead-free transition issues. The TO-92-3 package is a mature, stable process that has been in production for decades.