| Parameter | Specification |
|---|---|
| Sensor Type | Automotive Air Conditioning Pressure Sensor |
| Technology | MEMS-based pressure transducer |
| Pressure Range | 0–3400 kPaG (customizable: 0–3200 kPaG) |
| Accuracy | ±2.0% FS (10°C–85°C), ±3% FS (-40°C–125°C) |
| Operating Temperature | -40°C to +125°C |
| Storage Temperature | -40°C to +130°C |
| Output Signal | 0.4–4.65V or 0.5–4.5V (configurable) |
| Supply Voltage | 4.75–5.25 VDC |
| Overvoltage Protection | 18 VDC |
| Reverse Polarity Protection | -14 VDC |
| Burst Pressure | 3×P max |
| Overpressure Tolerance | 2×P max |
| Output Load (Capacitive) | 100nF ~ 470nF |
| Output Load (Resistive) | Min 4.7kΩ |
| Short Circuit Protection | Yes |
| Supply Current | ≤10 mA |
| Cycling Test | 200,000 cycles |
| Housing Material | Aluminum alloy / Copper / Steel |
| Protection Rating | IP67 |
| Mounting Interface | Threaded or flange connection (customizable) |
| Dimensions | Compact design, suitable for tight HVAC routing spaces |
| Compliance | RoHS, REACH, ISO 7637-2 |
The Automotive Air Conditioning Pressure Sensor is a critical component in modern vehicle climate control systems, designed to monitor refrigerant pressure within the HVAC circuit and provide real-time feedback to the vehicle’s electronic control unit (ECU). This advanced sensor utilizes MEMS (Micro-Electro-Mechanical Systems) technology to deliver high-performance, long-term stability, and exceptional accuracy across wide operating conditions. It measures absolute pressure from 0 to 3400 kPaG (or customizable up to 3200 kPaG), converting it into a precise electrical signal that enables the ECU to regulate compressor operation, prevent system overpressure, and optimize cooling efficiency—ensuring passenger comfort while protecting the entire air conditioning system from damage.
Engineered for durability, this sensor features intelligent zero-point and temperature compensation, maintaining ±2.0% full-scale accuracy between 10°C and 85°C, and ±3% FS from -40°C to 125°C. Its robust design includes comprehensive protection mechanisms: overvoltage (18V DC), reverse polarity (-14V DC), short-circuit resistance, and burst pressure tolerance of 3×P max. The IP67-rated housing ensures complete sealing against moisture, dust, and refrigerant leaks, making it suitable for harsh under-hood environments. With a compact size and modular configuration options, it supports flexible mounting on condenser lines, evaporator circuits, or receiver-drier connections, simplifying integration into diverse vehicle platforms.
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