Humidity sensor - P14 Rapid

Stable and robust humidity sensors with ultra-fast response time are often required in applications involving meteorology – not only in normal conditions, but also under elevated environmental constraints such as extremely low temperatures, high radiation levels and under extreme condensation. Such applications need fully tailored solutions, such as those provided by the Innovative Sensor Technology IST AG P14 Rapid. The P14 Rapid humidity sensor combines speed and full range operation in an ideal way. The sensor is capable of measuring 0 % RH to 100 % RH (maximal dew point +85 °C) with a capacitance of 140 pF ±40 pF (wired) / 180 pF ±50 pF (SMD) (at 30 % RH and +23 °C) and operates within a temperature range of -80 °C to +150 °C.

The IST AG P14 2FW Thermo was designed especially for dew point applications and humidity generators. The favorable one-chip solution consists of a capacitive humidity sensor, based on the standard P14 sensor, together with a heating element, which, at the same time, works as a valid Pt100 sensor. The sensor achieves outstanding measurement accuracy due to the optimal thermal coupling which enables a fast recovery time. Due to heating from the Pt100, humidity is quickly released and enables fast re-measurements after condensation. Furthermore, the Pt100 sensor heats out gases or vapors from the polymer, which might cause a drift of the humidity signal. The P14 2FW Thermo humidity sensor is capable of measuring 0 % RH to 100 % RH (maximal dew point +85 °C) with a capacitance of 150 pF ±50 pF (at 30 % RH and +23 °C) and operates within a temperature range of -50 °C to +150 °C.

The IST AG MK33-W capacitive RH humidity sensor has been developed especially for high-end measuring applications and extreme environments making it optimal for oil applications. The MK33 excels through its extremely high humidity and temperature working range and its outstanding chemical resistance. The humidity sensor is capable of measuring 0 % RH to 100 % RH (maximal dew point +95 °C) with a capacitance of 300 pF ±40 pF (at 30 % RH and +23 °C) and operates within a temperature range of -40 °C to +190 °C. Further advantages of the MK33-W capacitive RH sensor include: — High chemical resistance — Very low drift — Wide temperature range — High humidity stability — Condensation resistant — Suitable for extreme environments — Fast recovery time — Customer-specific sensor available upon request The IST AG MK33-W humidity sensor is available with CuP-SIL-wire post-plated with Sn or Au/Cu-wire as standard configuration.

Despite its very small size, the IST AG FemtoCap humidity sensor has excellent sensor characteristics that are required in areas such as automotive and white good applications. In combination with external electronics, it offers an excellent cost to performance ratio. The FemtoCap is an optimal cost efficient sensor solution and is capable of measuring 0 % RH to 100 % RH (maximal dew point +85 °C) with a capacitance of 180 pF ±50 pF (at 30 % RH and +23 °C) and operates within a temperature range of -50 °C to +150 °C. Further advantages of the P14 FemtoCap capacitive RH sensor include: — High chemical resistance — Very low drift — Wide temperature range — Excellent price-performance ratio — Resistance to condensation — Solderable and bondable (fully automated assembly) — Fast recovery time — Customer-specific sensor available upon request