TP18
Round cell with diameter 18mm (Revision B), covering pressure ranges from 0.7 to 4.5 MPa. Compact design suitable for space-constrained applications.

Key Features
- Corrosion resistance
- Impact resistance
- High stability
- High-temperature capability (-40°C to 140°C)
- Low hysteresis (±0.1%FS)
- Service life > 3 million pressure cycles
Applications
- • Automotive engine-oil pressure sensors
- • Automotive braking systems
- • Automotive air conditioning
- • New-energy vehicle thermal management
- • Commercial inverter air conditioning
Model Specifications
| Model | Pressure Range (MPa) | Overload (MPa) | Burst (MPa) | Capacitance (pF) | Shield (pF) | ΔC (pF) |
|---|---|---|---|---|---|---|
| TP18007 | 0.7 | 1.2 | 2.0 | 13±2 | 9.5±2.5 | 4±2 |
| TP18010 | 1.0 | 1.8 | 2.5 | 13±2 | 9.5±2.5 | 4±2 |
| TP18015 | 1.5 | 2.5 | 3.8 | 13±2 | 9.5±2.5 | 4±2 |
| TP18022 | 2.2 | 3.6 | 5.5 | 13±2 | 9.5±2.5 | 4±2 |
| TP18033 | 3.3 | 4.9 | 8.2 | 13±2 | 9.5±2.5 | 4±2 |
| TP18045 | 4.5 | 6.7 | 10.0 | 13±2 | 9.5±2.5 | 4±2 |
Outline Dimensions
| Range (MPa) | D1 (mm) | D2 (mm) | D3 (mm) | D4 (mm) | T1 (mm) | T2 (mm) |
|---|---|---|---|---|---|---|
| 0.7 | 18.00±0.18 | 0.65±0.08 | 6.53±0.2 | 1.28±0.2 | 3.61±0.08 | 1.8±0.2 |
| 1.0 | 18.00±0.18 | 0.65±0.08 | 6.53±0.2 | 1.28±0.2 | 3.65±0.08 | 1.8±0.2 |
| 1.5 | 18.00±0.18 | 0.65±0.08 | 6.53±0.2 | 1.28±0.2 | 3.71±0.08 | 1.8±0.2 |
| 2.2 | 18.00±0.18 | 0.65±0.08 | 6.53±0.2 | 1.28±0.2 | 3.78±0.08 | 1.8±0.2 |
| 3.3 | 18.00±0.18 | 0.65±0.08 | 6.53±0.2 | 1.28±0.2 | 3.86±0.08 | 1.8±0.2 |
| 4.5 | 18.00±0.18 | 0.65±0.08 | 6.53±0.2 | 1.28±0.2 | 3.93±0.08 | 1.8±0.2 |
Dimensions in mm. Tolerances as specified. Contact us for detailed drawings.
Electrical Integration
TP18 is a bare capacitive sensing element. Pressure changes its capacitance; it does not by itself output a voltage, current or digital signal. A signal conditioning IC is required to convert that capacitance change into a usable signal.
JHM2102
Signal conditioning IC for ceramic capacitive sensors. Supply 4.5–5.5 V, ratiometric voltage output, SOP8 package. Compatibility with this series has not been verified individually and must be confirmed for the intended design.
Third-party companion device, not a TOPWIN-developed product. No authorized distributor status is claimed.
Need the full datasheet?
Request the complete specification document for this series.