TD Series temperature sensors from Honeywell respond rapidly to temperature changes, and are accurate to ± 0.7 °C at 20 °C - completely interchangeable without recalibration. They are RTD (resistance temperature detector) sensors, and provide 8 Ohm/°C sensitivity, with inherently near linear outputs.
The sensing element is a silicon chip with a thin film resistive network pattern. The chips are individually laser trimmed to provide 2000 Ohm nominal resistance at room temperature (20 °C).
TD5A Miniature temperature sensor
The TD5A is a subminiature temperature sensor with three leads (The center is not connected).