HCH-1000-002

HCH-1000-002 Datasheet

HCH-1000 Series

Part	Datasheet
HCH-1000-002	HCH-1000-002 (pdf)

Related Parts	Information
HCH-1000-001	HCH-1000-001

PDF Datasheet Preview
HCH-1000 Series Capacitive Humidity Sensors DESCRIPTION The HCH-1000 series humidity sensor is a capacitive polymer sensor designed for relative humidity measurement. The sensor converts humidity value into capacitance, which can be measured electronically. Polyimide is used as a humidity sensing material because of its inherent IC Integrated Circuit processing compatibility, reduced temperature dependence and enhanced resistance against contamination. The HCH-1000-Series is manufactured using semiconductor technology. The sensor consists of a grid top electrode, a polyimide layer, and a bottom electrode. The grid top electrode on the bottom electrode provides enhanced sensitivity when compared to that of a standard structure. A cased version, for dust protection, and an uncased version are available. FEATURES AND BENEFITS Polymer sensing offers enhanced resistance against contamination Reduced temperature dependence Semiconductor fabrication technology Uses glass wafer as substrate Enhanced sensitivity and accuracy provides fast response Low hysteresis and long-term stability POTENTIAL APPLICATIONS Industrial Air compressors Battery-powered systems Drying equipment HVAC includes air conditioning, air movement, thermostats, humidifiers, de-humidifiers, humidistats, enthalpy sensing OEM assemblies Office automation equipment Process equipment Refrigeration includes bulk and transport systems Telecommunications cabinets Weather stations and meteorology equipment Medical Hospital air compressors Infant incubators Microenvironments Sleep apnea equipment Treadmill stress monitoring equipment HCH-1000 Series Table Specifications TA= 25 ºC [77 ºF], Input Voltage = 1 VRMS, Frequency = 20 kHz Characteristic Condition Min. Typ. Normal capacitance at 55 %RH Sensitivity 10 %RH to 95 %RH Humidity hysteresis Linearity Response time 30 %RH to 90 %RH Temperature coefficient 5 °C to 70 °C [41 °F to 158 °F] Long-term stability drift Operating temperature range -40 [-40] Operating humidity range Operating frequency range Max. 350 120 [248] 100% 100 Unit pF/%RH %RH %RH sec pF/°C %RH/year °C [°F] RH kHz Figure 1 Frequency Characteristics Figure 2 Typical Humidity Response Sensitivity = pF/%RH. Capacitance pF 390 380 370 360 350 340 330 320 310 300 290 280 270 90 100 Relative humidity %RH Figure 3 Temperature Characteristics At 1 VRMS and 20 kHz.

PDF Datasheet Preview

HCH-1000 Series

Capacitive Humidity Sensors

DESCRIPTION The HCH-1000 series humidity sensor is a capacitive polymer sensor designed for relative humidity measurement. The sensor converts humidity value into capacitance, which can be measured electronically.

Polyimide is used as a humidity sensing material because of its inherent IC Integrated Circuit processing compatibility, reduced temperature dependence and enhanced resistance against contamination. The HCH-1000-Series is manufactured using semiconductor technology.

The sensor consists of a grid top electrode, a polyimide layer, and a bottom electrode. The grid top electrode on the bottom electrode provides enhanced sensitivity when compared to that of a standard structure.

A cased version, for dust protection, and an uncased version are available.

FEATURES AND BENEFITS Polymer sensing offers enhanced resistance against contamination Reduced temperature dependence Semiconductor fabrication technology Uses glass wafer as substrate Enhanced sensitivity and accuracy provides fast response Low hysteresis and long-term stability

POTENTIAL APPLICATIONS Industrial

Air compressors Battery-powered systems Drying equipment HVAC includes air conditioning, air movement, thermostats, humidifiers, de-humidifiers, humidistats, enthalpy sensing OEM assemblies Office automation equipment Process equipment Refrigeration includes bulk and transport systems Telecommunications cabinets Weather stations and meteorology equipment

Medical Hospital air compressors Infant incubators Microenvironments Sleep apnea equipment Treadmill stress monitoring equipment

HCH-1000 Series

Table Specifications TA= 25 ºC [77 ºF], Input Voltage = 1 VRMS, Frequency = 20 kHz

Characteristic

Condition

Min.

Typ.

Normal capacitance
at 55 %RH

Sensitivity
10 %RH to 95 %RH

Humidity hysteresis

Linearity

Response time
30 %RH to 90 %RH

Temperature coefficient
5 °C to 70 °C [41 °F to 158 °F]

Long-term stability drift

Operating temperature range
-40 [-40]

Operating humidity range

Operating frequency range

Max. 350
120 [248] 100% 100

Unit pF/%RH %RH %RH sec pF/°C %RH/year °C [°F] RH kHz

Figure 1 Frequency Characteristics

Figure 2 Typical Humidity Response Sensitivity = pF/%RH.

Capacitance pF
390 380 370 360 350 340 330 320 310 300 290 280 270
90 100

Relative humidity %RH

Figure 3 Temperature Characteristics At 1 VRMS and 20 kHz.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived HCH-1000-002 Datasheet file may be downloaded here without warranties.

Datasheet ID: HCH-1000-002 636454