Vishay / BC Components NTCASCW78A NTC Immersion Temperature Sensor
Vishay / BC Components NTCASCW78A NTC Immersion Temperature Sensor is a rugged immersion‑type NTC thermistor temperature sensor designed for accurate thermal monitoring in demanding environments. Housed in a high‑grade 316L stainless‑steel body, the NTCASCW78A offers strong resistance to corrosion and mechanical stress, making the sensor suitable for long‑term use in heating, cooling, and fluid‑based systems. This device features a screw‑threaded mounting design, enabling secure installation into pipes, tanks, and housings where direct contact with liquid or air is required for precise temperature measurement. As part of Vishay’s NTC thermistor family, the NTCASCW78A delivers dependable, fast-response temperature sensing with a well‑defined resistance curve, making it ideal for applications such as heat pumps, water boilers, and general heating systems. A robust construction and reliable performance characteristics support consistent thermal control in both residential and industrial settings.
Features
- Immersion sensor
- Rugged construction
- High-grade stainless steel housing (316L / V4A)
- Sensor housing has an M8-6g screw thread and is mounted with a spanner size 12
- 39-01-2026 Molex connector or equivalent
- High stability equating to a lifetime temperature accuracy of ±0.5°C maximum
- RoHS-, REACH-, and SVHC-compliant (e3) termination
- Halogen-free cable with electron-beam cross-linked lead wire with improved fire performance, increased resistance to temperature, and good oil resistance
- Lead- and PVC-free
Applications
- Heat pumps
- Water boilers
- Heating systems
- Water and used water systems
- Water and oil tanks
- Consumer appliances
- Industrial appliances
- Solar heating systems
- Buildings
- Energy Storage Systems (ESS)
Specifications
- 10KΩ resistance value at +25°C
- ±2% tolerance on R25-value
- 3984K B25/85-value
- ±0.5% tolerance on B25/85-value
- 20s thermal time constant at 63.2% (+25°C to +85°C water)
- 500VAC minimum dielectric withstanding voltage between the metallic housing and the terminals/NTC
- 150mW maximum power dissipation
- Mounting
- O-ring
- Cable allowed bending radius - 4x outer diameter
- Electrical connection to the counter-connector
- Use spanner size 12
- -25°C to +125°C operating temperature range at zero power
- 25/125/56 climatic category (IEC 60539)
Design Tools
Dimensions: mm
