OEM humidity sensor for PCB mounting
The AMSYS humidity sensors work according to the capacitive measuring principle. This is based on the fact that two miniaturized electrodes form an electrical capacitor. The change in capacitance is caused by the absorption and resorption of the humid-sensitive dielectric located between the electrodes.
AMSYS offers miniaturized humidity sensors that have both analog and digital (I²C) outputs.
All humidity sensors, except for the HS1101, can measure the temperature as well as the humidity (double function). In the case of the MS8607, the ambient pressure can also be recorded (triple function).
A distinction is made between OEM sensors as pure components and sensors that are applied on PCBs and that are housed.
OEM humidity sensor with analog humidity output
| type | humidity range | temperature (°C) | sensitivity (pF/% RH) | error ( %RH) | output |
|---|---|---|---|---|---|
| HS1101-LF | 0-100% | -60..+140 | 0,31 | +2 | pF |
Compensated OEM humidity sensors with digital / analog humidity and temperature output
| type | humidity range | temperature (°C) | resolution (RH/T) | error (% RH) | output |
|---|---|---|---|---|---|
| HTU20D* | 0-100% | -40..+125 | 8/12 bits | +3 | digital (I2C) |
| type | humidity range | temperature (°C) | resolution (RH/T) | error (%RH) | output |
|---|---|---|---|---|---|
| HTU20P* | 0-100% | -40..+125 | 10/12 bits | +3 | PWM |
| type | humidity range | temperature (°C) | resolution (RH/T) | error (%RH) | output |
|---|---|---|---|---|---|
| HTU21D* | 0-100% | -40..+125 | 8/12 bits | +2 | digital (I2C) |
| type | humidity range | temperature (°C) | resolution (RH/T) | error (%RH) | output |
|---|---|---|---|---|---|
| HTU21P* | 0-100% | -40..+125 | 10/12 bits | +2 | PWM |
| type | humidity range | temperature (°C) | resolution (RH/T) | error (%RH) | output |
|---|---|---|---|---|---|
| HTU31D* | 0-100% | -40..+125 | 8/12 bits | +2 | digital (I2C) |
| type | humidity range | temperature (°C) | resolution (RH/T) | error (%RH) | output |
|---|---|---|---|---|---|
| HTU31V* | 0-100% | -40..+125 | 10/12 bits | +2 | PWM |
* The HTU series sensors are also available with a PTFE filter membrane (F) as an option to protect against dust, liquids and contamination.
OEM humidity sensor with digital humidity and temperature output on PCB
| type | humidity range | temperature (°C) | resolution (RH/T) | error (%RH) | output |
|---|---|---|---|---|---|
| PHTU21D | 0-100% | -40..+125 | 8/12 bits | +2 | digital (I2C) |
Humidity sensors with digital / analogue humidity and temperature output on PCB and housed
| type | humidity range | temperature (°C) | resolution (RH/T) | error (%RH) | output |
|---|---|---|---|---|---|
| HTU3835 | 0-100% | -40..+85 | 12/14 bits | +2 | digital (I2C) |
| type | humidity range | temperature (°C) | sensitivity (mV/%RH) | error (%RH) | output |
|---|---|---|---|---|---|
| HTU3535 | 0-100% | -40..+85 | 16 | +2 | V |
Compensated triple sensor with digital pressure, humidity and temperature output
| type | humidity range | pressure range | temp.(°C) | resolution (RH/T/P) | error (% RH/ °C/ mbar) | output |
|---|---|---|---|---|---|---|
| MS8607-02BA01 | 0-100% | 10-2000 mbar | -40..+85 | 0,04/0,01/0,016 | ±3/±1/±2 | digital (I2C) |