KFS-140-MSMD Humidity Element

Description

In the fields of automotive technology, laundry dryers, household appliances and also in the area of industrial applications, humidity sensors are required to measure humidity for the entire life cycle of the product without recalibration.  In addition, stiff price restrictions for these high volume applications that only surface mount sensors can meet the market price requirements.

The KFS140-MSMD is both highly reliable using a resistive humidity sensor  and low cost due to its surface mount package.  This humidity sensor offers a better signal-to-noise ratio than monolithic integrated sensors and are also characterized by excellent long term stability in continuous operation under rough conditions.

Presently, the MSMD humidity sensors represent the smallest discrete humidity sensor in the world with an excellent price-to-performance ratio.

Features

  • Temperature Shock Resistant
  • Good Linearity
  • Low Hysteresis
  • Dew Resistant
  • Compact Size
  • Optimum Price-Performance
  • Surface Mount

Technical Features

ParameterValue
Measuring Principle: Capacitive polymer humidity sensor
Humidity Range: 0-100% relative humidity
Temperature Range: -50 to +150°C
Capacitance: 180pF ±50pF (at 23°C and 30%RH)
Gain Value: 0.3 pF/ %RH
Tan: <0.01
Hysteresis: less than 1.5% rh
Response Time: less than 6 sec
Frequency Range: 1-100 kHz
Max Evaluation Voltage: less than 12 Vpp
Signal Waveform: AC voltage (without DC-component)
Dimensions: 2.0 X 4.0 X 0.38 mm
Connection: SMD
Meets RoHS conformity: Yes

Applications

  • Automotive
  • HVAC & Air Conditioning
  • Household Appliances (White Goods)
  • Consumer Products
  • Instrumentation

Data Sheet

Application Notes