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CAT # XDR-24 (11 Reviews) Write a Review

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Product Description
Matsushita #0D24K2. 0.95" diameter x 0.38" metal case. 0.65" long pc leads on 0.4" centers.
WARNING: May cause cancer or reproductive harm.
California Prop. 65
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Customer Reviews (11 Reviews)

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Excellent product

Reviewer: from GALESBURG, IL US

I have manufactured many transmitters and recievers using this device. All my customers love it. They do have a high impedance. The frequency response is 8khz-70khz. Will continue to order many more in the future.

5 of 5 people found this review helpful. Do you? Yes No

circuit to drive dog away from your neighborhood

Reviewer: from yahoo

1 of 4 people found this review helpful. Do you? Yes No

Excellent Experimental Sensor

Reviewer: from Salem, OR USA

These are excellent units. So much so I bought 30 of them for my robotics experimentation. They are extremely sharp, requiring a signal between 23.5 and 24.6khz. Units can be used as both receiver and transmitter. I set up a test rail, spacing two transducers 30cm apart. With a square wave of 5 volts fed into one transducer I read a signal of 60mv on the second transducer, used as a receiver.
In my application my receiver is an op amp with gain of 10 feeding an LM567 tone decoder. With 1.2 volts peak-to-peak, fed into the sending transducer, the tone decoder recogizes the signal at the distance of 1.5 meters, with the receiving transducer set at an angle of 45 degrees to the sender. These results assume some fine tuning of LM567 components

4 of 4 people found this review helpful. Do you? Yes No

Good and inexpensive if you know how to use it

Reviewer: from SAN FRANCISCO, CA US

To answer the previous review, yes, these transducers are capable of both transmitting and receiving. I have constructed two ultrasonic rangefinders with these transducers, one uses a single transducer for transmit and receive while the other uses two - a dedicated transducer for tx and the other for rx. Both configurations require a rindown period although the single tranducer configuration requires a significant ringdown period before you can start receiving. I have been able to range large objects up to 9 feet away and as close as 1.5 inches with the dual-transducer configuration.
See Hope this helped a little bit.

4 of 4 people found this review helpful. Do you? Yes No

3 lobe cardioid

Reviewer: from Calif*

24.50khz +/- 0.25khz is the range, beyond which it's dead. Has a 3 lobe cardioid pattern. Sharp cutoff near 30 deg off center, then it picks up again. Ran it up to 20V p-p without issue. Leads fit standard proto boards without any force. Shroud easily comes off by destroying the metal nubs, giving you a look inside. No plastic in this part, so the leads don't slide up & down when you solder them.

3 of 3 people found this review helpful. Do you? Yes No
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