Pressure Sensor Fluid PSS-250R

This sensor is designed to measure the pressure of media in relation to the ambient pressure (e.g. Diesel, gasoline, water, engine oil, transmission oil or air). The sensor is available for two different supply voltage ranges.

The sensor uses stainless steel measuring cells with piezo-resistive measuring bridges in thin layer technique, which are hermetically welded together with stainless steel pressure ports. This guarantees a complete media compatibility.

The main benefit of this sensor is the high quality of a production part at a low price



  • Application: 0 to 250 bar
  • Response time: 1.5 ms
  • Pressure reference type: Relative
  • Power supply: 5 V
  • Weight: 45 g



0 to 250 bar (r)

Pressure reference type


Max. pressure

500 bar

Operating temp. range

-40 to 125°C (140°C)

Media temp. range

-40 to 125°C (140°C)

Storage temp. range

-20 to 50°C

Bio fuel compatibility

E 85 / M 100

Max. vibration

100 m/s2 rms at 10 to 2,000 Hz

Technical Specifications

Mechanical Data

Male thread


Wrench size

17 mm

Installation torque

15 Nm

Weight w/o wire

45 g


O-ring 7.65 x 1.63 mm

Electrical Data

Power supply US

4.75 to 5.25 V

Max power supply US max

± 30 V

Full scale output UA

10 to 90 % US ratiometric

Current IS

8 mA


Response time T10/90

1.5 ms

Compensated range

0 to 90°C

Tolerance (FS)

± 2.5 bar

Tolerance (FS)

± 1 %


16 mV/bar at US = 5 V


500 mV at US = 5 V

Connectors and Wires


Bosch Compact

Mating connector

3-pole Compact

Pin 1


Pin 2


Pin 3


Pin 4


Pin 5


Installation Notes

The PSS-250R can be connected directly to most control units.

The sensor has a protection for over voltage, reverse polarity and short-circuit.

Please do not fix the sensor directly to the engine block to avoid undesired strong vibrations.

Each mounting orientation is possible.

The sensor meets all EMV, EMC and ESD automotive standards.

Please find further application hints in the offer drawing and free download of the sensor configuration file (*.sdf) for the Bosch Data Logging System at our homepage.

Safety Note

The sensor is not intended to be used for safety related applications without appropriate measures for signal validation in the application system.

Ordering Information

Pressure Sensor Fluid PSS-250R

4.75 to 5.25 V

Order number: B261.209.965-01

Legal Restrictions

Due to embargo restrictions, sale of this product in Russia, Belarus, Iran, Syria, and North Korea is prohibited.