NTC TEMPERATURE PROBES
AX-NTC series · NTC 10K / 100K · B3435 / B3950 / B3977 · IP65
AX-NTC SERIES
The Axiom Thermal AX-NTC series uses high-precision NTC thermistors in a stainless-steel probe, for temperature measurement in HVAC, refrigeration, heating and home appliances. R25 10 kΩ or 100 kΩ, B value 3435 K, 3950 K or 3977 K, cable 1 m or 1.5 m, protection class IP65.
Key features
- High-precision NTC thermistor, R25 10 kΩ / 100 kΩ
- B25/85 = 3435 K / 3950 K / 3977 K, tolerance ±1%
- Measuring range −30 … +200 °C
- Stainless-steel probe Ø6 mm, IP65, waterproof and corrosion resistant
- Cable type with PVC sheath, 1 m / 1.5 m
- Tinned leads, XH2.54, ring or OT terminals; OEM on request
Applications
HVAC, air conditioners and refrigerators, water heaters, thermostats, home appliances, industrial temperature measurement, refrigeration equipment, smart home.
Technical specifications
| Sensing element | NTC thermistor, epoxy encapsulated, 2-core lead |
| Nominal resistance R25 | 10 kΩ / 100 kΩ (standard 10 kΩ) |
| Resistance tolerance | ±1% |
| B value (B25/85) | 3435 K / 3950 K / 3977 K ±1% (standard B3950) |
| Measuring range | −30 … +200 °C |
| Wiring | 2-wire, non-polar |
| Max. steady current | ≤ 5 mA (recommended operating current ≤ 0.1 mA) |
| Insulation resistance | ≥ 100 MΩ (500 V DC) |
| Dielectric strength | 500 V AC, 1 min, leakage current ≤ 5 mA |
| Probe size | Stainless-steel probe Ø6 mm, standard length 30 mm (custom lengths) |
| Sheath material | AISI 304 stainless steel |
| Lead wire | PVC sheathed, 2-core tinned stranded copper, 1 m / 1.5 m (other lengths on request) |
| Protection class | IP65 |
| Response time | ≤ 15 s (in water, typical) |
Ordering codes
| Code | Description |
|---|---|
| AX-NTC-N10K-B3435-1M | 10 kΩ, B25/85 = 3435 K, cable 1 m |
| AX-NTC-N10K-B3435-1.5M | 10 kΩ, B25/85 = 3435 K, cable 1.5 m |
| AX-NTC-N10K-B3950-1M | 10 kΩ, B25/85 = 3950 K, cable 1 m |
| AX-NTC-N10K-B3950-1.5M | 10 kΩ, B25/85 = 3950 K, cable 1.5 m |
| AX-NTC-N10K-B3977-1M | 10 kΩ, B25/85 = 3977 K, cable 1 m |
| AX-NTC-N10K-B3977-1.5M | 10 kΩ, B25/85 = 3977 K, cable 1.5 m |
| AX-NTC-N100K-B3435-1M | 100 kΩ, B25/85 = 3435 K, cable 1 m |
| AX-NTC-N100K-B3435-1.5M | 100 kΩ, B25/85 = 3435 K, cable 1.5 m |
| AX-NTC-N100K-B3950-1M | 100 kΩ, B25/85 = 3950 K, cable 1 m |
| AX-NTC-N100K-B3950-1.5M | 100 kΩ, B25/85 = 3950 K, cable 1.5 m |
OEM and private label options
| Cable length | Other lengths on request |
| Termination | Tinned, XH2.54, ring terminal, OT terminal, bare wire |
| Probe | Custom probe length |
| B value | Other B values on request (OEM) |
Installation and wiring
2-wire, non-polar: the red and black wires are interchangeable in the measuring circuit. Notes: (1) wire colours may change without notice; (2) NTC is non-polarised; (3) recommended operating current ≤ 0.1 mA to keep self-heating error to a minimum.
Specifications subject to change without notice. Full resistance tables and dimensional drawings are included in the PDF datasheet.
Need a quote or samples?
Tell us the model, quantity and destination. We will get back to you as soon as possible.
Contact us