SDP-PC7 Miniature Ø10 mm Piezoresistive Silicon Pressure Sensor Core
The SDP-PC7 is a miniature piezoresistive silicon pressure sensor core designed for compact OEM pressure sensors, transmitters and control instruments. Its Ø10 × 8 mm package fits space-constrained designs, while the 316L stainless-steel diaphragm and silicone oil-filled construction isolate the sensing die from the measured medium.
With millivolt output, pin connections and constant-current or constant-voltage excitation options, the SDP-PC7 supports flexible integration into signal-conditioning circuits. It is suitable for hydraulic systems, valves and industrial pressure monitoring applications using media compatible with 316L stainless steel.
Features
• Miniature Ø10 × 8 mm package for compact OEM designs
• 316L stainless-steel diaphragm and housing
• Available full-scale pressure ranges from 1 to 40 MPa
• Absolute and sealed gauge pressure options
• Millivolt output with pin connections
• Recommended excitation: 1.5 mA constant current or 5 V constant voltage
• Non-linearity: ≤0.25% FS (BFSL)
• Operating temperature: −40°C to +125°C
01Product Overview
The SDP-PC7 Miniature Piezoresistive Silicon Pressure Sensor Core uses an oil-filled isolation diaphragm in a compact Ø10 × 8 mm package. It provides a millivolt signal for integration into OEM pressure sensors, transmitters and control instruments.
02Product Features
- Compact Ø10 × 8 mm package
- 316L stainless-steel diaphragm and housing
- Constant-current or constant-voltage excitation
- Pin connections and O-ring mounting
- External compensation board options on request
03Applications
Pressure controllers, process instrumentation, hydraulic systems and valves, biomedical instruments, and marine measurement systems.
04Structural Characteristics
| Sensing Technology | Diffused silicon piezoresistive |
|---|---|
| Fill Fluid | Silicone oil |
| Electrical Leads | Kovar pins |
| Seal Options | NBR or FKM |
| Media Compatibility | Confirm compatibility with 316L and the selected seal |
05Environmental Conditions
| Operating Temperature | −40 to +125°C |
|---|---|
| Storage Temperature | −40 to +125°C |
| Temperature Compensation | NC configuration: uncompensated |
Operating temperature is not a compensated accuracy range. Specify external compensation requirements when ordering.
06Electrical Characteristics
| Output | Millivolt bridge signal |
|---|---|
| Recommended Constant Current | 1.5 mA |
| Constant Voltage | Available; confirm voltage for the selected configuration |
| Zero Output | ±30 mV |
| Full-Scale Output | ≥60 mV |
| Impedance | 2–6 kΩ |
| Insulation Resistance | ≥200 MΩ at 250 VDC |
Signal conditioning is required for standard transmitter outputs.
07Technical Specifications
| Full-Scale Ranges | 1, 1.6, 2.5, 4, 6, 10, 16, 25 and 40 MPa |
|---|---|
| Absolute Pressure | 0–1 to 0–10 MPa ranges |
| Sealed Gauge Pressure | 0–1 to 0–40 MPa ranges |
| Non-Linearity | ≤0.25% FS, BFSL |
| Repeatability | ≤0.05% FS |
| Long-Term Drift | ≤0.2% FS/year |
| Overload: 1–4 MPa Ranges | 200% FS |
| Overload: 6–40 MPa Ranges | 150% FS |
FS = full scale; BFSL = best-fit straight line. Non-linearity is not a combined accuracy specification. Confirm thermal performance for your application.
08Dimensions
Nominal package: Ø10 × 8 mm. Request the configuration-specific drawing before designing the mounting cavity, seal groove and electrical clearance.
09Electrical Connection
| Pins 1 and 5 | Excitation − (IN−) |
|---|---|
| Pin 2 | Output + (OUT+) |
| Pin 3 | Excitation + (IN+) |
| Pin 4 | Output − (OUT−) |
For the five-pin constant-current version only. Confirm pin numbering and viewing orientation against the supplied drawing. Constant-voltage wiring must be confirmed separately.
10Product Selection
Specify the pressure range and reference, excitation, mounting requirements, seal material, measured medium, operating temperature and quantity. Include any external compensation or threaded connection requirements.
Contact SensorDyna for configuration matching, sample availability and OEM integration support.
