Heraeus M Series Platinum Elements
Heraeus M-series platinum temperature sensors have the widest range of element sizes, R0 resistance values and accuracies. This makes them a very versatile range and subsequently our best-selling series.
The smallest Heraeus M213 version is only 1.25mm wide by 1.7mm long yet we can still offer a Pt1000 version to class B (F0.3) accuracy. The largest Heraeus M1020 series (1.9mm wide x 9.5mm long) has the widest range of resistance values whereas the Heraeus M422 series (2.1mm wide by 3.9mm long) also offers all three main Pt100, Pt500 and Pt1000 values to 1/3DIN accuracy if required.
1/3DIN (or F0.3 or class 1/3B) accuracy is also available in the smaller Heraeus M222 series (2.1mm wide x 2.3mm long) making ±0.10°C at 0°C possible in a very neat small RTD package. The platinum-coated nickel wires also makes them easy to solder but they can also be welded, brazed or crimped.
Applications
- Automotive (EGR and e-vehicle)
- Home appliances
- Temperature sensors
- Energy generation industries
- Medical instruments
- Industrial machinery
Features
- Widest range of sizes and resistance accuracies
- Temperature Coefficient (TCR) typically 3850 ppm
- Temperature range from -70°C to +500°C
- Short-term use up to 550°C possible


Technical Specifications
Product | Dimensions in mm | Ptxxx (Ohms at 0°C) | Temperature Range | |
M213 | 1.7 x 1.25 x 0.8 | Pt100/Pt1000 | -70°C to +500°C Short-term up to +550°C | Data Sheet |
M219 | 2.1 x 1.9 x 0.9 | Pt1000 | -70°C to +500°C Short-term up to +550°C | Data Sheet |
M220 | 2.3 x 1.9 x 0.9 | Pt100 | -70°C to +500°C Short-term up to +550°C | Data Sheet |
M222 | 2.3 x 2.1 x 0.9 | Pt100/Pt500/Pt1000 | -70°C to +500°C Short-term up to +550°C | Data Sheet |
M310 | 3.0 x 1.0 x 0.8 | Pt100/Pt1000 | -70°C to +500°C Short-term up to +550°C | Data Sheet |
M416 | 3.9 x 1.5 x 0.9 | Pt100 | -70°C to +500°C Short-term up to +550°C | Data Sheet |
M422 | 3.9 x 2.1 x 0.9 | Pt100/Pt500/Pt1000 | -70°C to +500°C Short-term up to +550°C | Data Sheet |
M620 | 5.9 x 1.9 x 0.9 | Pt2000 | -70°C to +500°C Short-term up to +550°C | Data Sheet |
M1020 | 9.5 x 1.9 x 0.9 | Pt100/Pt500/Pt1000 | -70°C to +500°C Short-term up to +550°C | Data Sheet |