40khz-18mm-closed-ultrasonic-transmitter

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40kHz 18mm Closed Ultrasonic Transmitter

Code: N23KK

  • Air ultrasonic ceramic transmitter - closed type
  • 40kHz frequency
  • 18mm diameter

Product details

40kHz 18mm Closed Ultrasonic Transmitter

• Air ultrasonic ceramic transmitter - closed type
• 40kHz frequency
• 18mm diameter
• Aluminium case

Industry standard closed faced transmitter/receiver pair. Widely used in hobbyist and industrial markets for robotics, distance measurement, security, pest repellent and gas/wind detection.
Centre frequency: 40.0 kHz ±1.0 kHz
Bandwidth: 1.5 kHz
Transmitting SPL: 115 dB (min)
Receiving sensitivity: -70 dB (min)
Capacitance @ 1kHz: 2400 pF
Max driving voltage: 20 Vrms
Total beam angle: 30° typ.

Is there a driver circuit you can recommend for this, off the shelf or diy.

Asked by: spud
it is important to note that as a retail only company we are unable to assist with any design projects or queries, or advise on specific products that may be required for your purpose.
Answered by: Dominic
Date published: 2017-01-27
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Bulk Prices

Item code Item name Quantity Price
N23KK 40kHz 18mm Closed Ultrasonic Transmitter (100+) £5.75
N23KK 40kHz 18mm Closed Ultrasonic Transmitter (25+) £6.13
N23KK 40kHz 18mm Closed Ultrasonic Transmitter (10+) £6.52
N23KK 40kHz 18mm Closed Ultrasonic Transmitter (5+) £6.90
N23KK 40kHz 18mm Closed Ultrasonic Transmitter (1+) £7.99

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Contact our business team on 

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To receive your free copy of the Maplin Catalogue just call 0333 400 9740.

£7.99

  • Home Delivery
  • Click & Collect

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