HEL-705-U-1-12-00
Overview
The HEL-705-U-1-12-00 is a high-accuracy 1000 Ohm platinum Resistance Temperature Detector (RTD) housed in a durable alumina ceramic tube. It is designed to provide linear temperature sensing from -70 degrees Celsius to 260 degrees Celsius, featuring 28 AWG PTFE-insulated lead wires for reliable connectivity. This thin-film sensor offers stable performance and is interchangeable without the need for individual recalibration due to its strict +/-0.1% resistance tolerance.
Why Choose This Part
This RTD features a high 1 kOhm nominal resistance, which reduces the impact of lead wire resistance errors compared to standard 100 Ohm sensors. Its ceramic probe construction provides excellent environmental protection and electrical insulation in harsh mounting conditions. The +/-0.3 degree Celsius accuracy at 0 degrees Celsius ensures high-fidelity data for sensitive feedback loops.
Applications
Key Specifications
Getting Started
To use this sensor, connect the wire leads to a high-resolution ADC through a precision current source or a bridge circuit. Given the 1 mA maximum current spec, ensure your excitation current is low to prevent self-heating errors. Implement the Callendar-Van Dusen equation in your firmware to linearize the resistance-to-temperature conversion across the operating range.
