Piher sensing systems - custom potentiometers and position sensors

HVACR Sensors

Driven to perfection

The HVAC sensor family  has been designed to feedback the position of  the cold/hot air flap in the car´s HVACR system. High accuracy (2% linearity) and low cost are among its main advantages.

Over 120 million-plus HVAC custom sensors, delivered to a major automotive supplier, for over ten years with an PPM rate below 1 are some the impressive figures achieved by Piher for motor control feeback sensing applications related to HVAC.

hvac3 5


Standard Electrical features

Resistive element: carbon
Resistive value: 4K7 or custom
Tolerance: ± 20%, ± 30%
Linearity: ± 2% absolute
Maximum voltage: 34 VDC (lin)
Nominal power: 50°C (122°F) 0.25 W
Output: linear
Residual resistance: ≤ 6% Rn
Equivalent noise resistance: ≤ 20% Rn
Operating temperature: -40°C to +85°C


Mechanical features

Mechanical rotation angle: 360º (endless)
Electrical rotation angle: 120º, 170º, 180º, 250º, 340º
Torque: 0.2 to 1.2 Ncm
Life: 100K cycles (custom)

  industry leading2


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Tel: +34 948 82 04 50