250ST160

Transducer, Ultrasonic, Transmitter, 112 dB

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.

Manufacturer: PROWAVE
Product type: Piezo Transducers
Product Range: 250Sx160
Sound Level SPL: 112dB
Resonant Frequency: 25kHz
Transducer Function: Transmitter
Sound Level Distance: 30cm

Delivery and price
Units per pack	50
Price	4.88 €
Current stock	500+
Lead time	7 days

Datasheet

Electra House, 32 Southtown Road Great Yarmouth, Norfolk NR31 0DU, England 

Telephone +44 (0)1493 602602 Fax +44 (0)1493 665111 Email:sales@midassensors.com www.midassensors.com 

## **PROWAVE** 

## **Air Ultrasonic Ceramic Transducers** 

## **250ST/R160** 

## **Dimensions:** dimensions are in mm 

## **Specification** 

**Impedance/Phase Angle vs. Frequency** Tested under 1Vrms Oscillation Level 250SR160 Impedance 250SR160 Phase 250ST160 Impedance 250ST160 Phase 

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**----- Start of picture text -----**<br>
100000 90<br>75<br>aCeeGCGCG 60<br>45<br>10000 ff | en 30<br>|eea eeey ee fe2 a 150<br>————_L_L -15<br>1000 a tS -30<br>——————eeaGO |eeSGee ee eS Se -45-60<br>CoO<br>100 HeOE -75-90<br>20 21 22 23 24 25 26 27 28 29 30<br>Frequency (Khz)<br>Impedance (Ohm) Phase (Degree)<br>**----- End of picture text -----**<br>


|**250ST160**<br>**250SR160**<br>**Center Frequency**<br>**Bandwidth**(-6dB)<br>250ST160<br>250SR160|Transmitter<br>Receiver<br>25.0±1.0Khz<br>2.0Khz<br>2.0Khz|
|---|---|
|**Transmitting Sound Pressure**|112dB min.|
|**Level**||
|at 25.0Khz; 0dB re 0.0002µbar||
|per 10Vrms at 30cm||
|**Receiving Sensitivity**<br>at 25.0Khz 0dB = 1 volt/µbar<br>**Capacitance**at 1Khz±20%<br>**Max. Driving Voltage**(cont.)|-62dB min.<br>2400 pF<br>20Vrms|
|**Total Beam Angle**<br>-6dB|85°typical|
|**Operation Temperature**|-30 to 80°C|
|**Storage Temperature**|-40 to 85°C|



## **Sensitivity/Sound Pressure Level** 

Tested under 10Vrms @30cm 

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**----- Start of picture text -----**<br>
-50 130<br>-55 125<br>-60 120<br>-65 115<br>FELCH |<br>-70 Litt  ESSENSE 110<br>-75 LTT TET T TATA E TONETANEMKETINT TT TTT 105<br>-80 100<br>-85 95<br>-90 90<br>20 21 22 23 24 25 26 27 28 29 30<br>Frequency (Khz)<br>SPL (dB)<br>Sensitivity (dB)<br>**----- End of picture text -----**<br>


**Beam Angle:** Tested at 25.0Khz frequency 

All specification taken typical at 25 ° C Closer frequency tolerance can be supplied upon request. 

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**----- Start of picture text -----**<br>
 0<br>upon request.  330 S N  0  D  30<br>-6<br> 300 -12   60<br>Model available: -18<br>1 250ST/R160 Aluminum Housing  270 | /[ { MO ~ -24 -30  O\ \ \ \ 90<br>2 250ST/R16B Black Al. Housing<br>3 250ST/R16F Al. Housing w/Solid Grid  240  120<br>4 250ST/R16P Plastic Housing wh"<br> 210  150<br> 180<br>**----- End of picture text -----**<br>


**Air Ultrasonic Ceramic Transducers** 

**PROWAVE** 

**250ST/R160** 

## **250SR160 Receiver** 

## **Sensitivity Variation vs. Loaded Resistor** 

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**----- Start of picture text -----**<br>
-40<br>-45<br>-50<br>-55<br>-60<br>-65<br>-70<br>-75<br>-80<br>1K 3.9K 10K 39K 100K 390K<br>Loaded Resistor (Ohm)<br>Sensitivity (dB)<br>**----- End of picture text -----**<br>


## **Center Frequency Shift vs. Loaded Resistor** 

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5.0<br>4.0<br>3.0<br>2.0<br>1.0<br>0.0<br>-1.0<br>-2.0<br>-3.0<br>-4.0<br>-5.0<br>1K 3.9K 10K 39K 100K 390K<br>Loaded Resistor (Ohm)<br>Fc Variation %<br>**----- End of picture text -----**<br>


## **Sensitivity Variation vs. Temperature** 

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**----- Start of picture text -----**<br>
-40<br>-45<br>-50<br>-55<br>-60<br>-65<br>-70<br>-75<br>-80<br>-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100<br>Temperature (Degree C)<br>Sensitivity (dB)<br>**----- End of picture text -----**<br>


## **Center Frequency Shift vs. Temperature** 

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**----- Start of picture text -----**<br>
5.0<br>4.0<br>3.0<br>2.0<br>1.0<br>0.0<br>-1.0<br>-2.0<br>-3.0<br>-4.0<br>-5.0<br>-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100<br>Temperature (Degree C)<br>Fc Variation %<br>**----- End of picture text -----**<br>


## **250ST160 Transmitter** 

## **SPL Variation vs. Driving Voltage** 

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130<br>125<br>120<br>115<br>110<br>105<br>100<br>95<br>90<br>0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30<br>Vrms<br>SPL (dB)<br>**----- End of picture text -----**<br>


## **Center Frequency Shift vs. Driving Voltage** 

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**----- Start of picture text -----**<br>
0<br>-0.5<br>-1<br>-1.5<br>-2<br>-2.5<br>-3<br>-3.5<br>-4<br>-4.5<br>-5<br>-5.5<br>-6<br>0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30<br>Vrms<br>Fc Variation %<br>**----- End of picture text -----**<br>


## **SPL Variation vs. Temperature** 

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**----- Start of picture text -----**<br>
130<br>125<br>120<br>115<br>110<br>105<br>100<br>95<br>90<br>-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100<br>Temperature (Degree C)<br>SPL (dB)<br>**----- End of picture text -----**<br>


## **Center Frequency Shift vs. Temperature** 

**==> picture [209 x 97] intentionally omitted <==**

**----- Start of picture text -----**<br>
5.0<br>4.0<br>3.0<br>2.0<br>1.0<br>0.0<br>-1.0<br>-2.0<br>-3.0<br>-4.0<br>-5.0<br>-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100<br>Temperature (Degree C)<br>Fc Variation %<br>**----- End of picture text -----**<br>

Updated at February 9, 2023

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