Design, Specifications are subject to change without notice.

Ask factory for technical specifications before purchase and/or use.

Whenever a doubt about safety arises from this product, please inform us immediately for technical consultation without fail.

Ð EF72 Ð

Ultrasonic Ceramic Sensors

(Ultrasonic Ceramic Transducers)

Type:

U/H/S/Q

Ultrasonic Ceramic Sensor consisting of a disc type/a

bimorph type piezoelectric ceramic vibrator is a sensor

for transmitting and receiving ultrasonic wave in the air.

s

Features

q

High output S.P.L.: 112 dB min. (Ex. EFRTUB40K5)

q

High sensitivity: Ð45 dB min. (Ex. EFRRUB40K5)

q

Excellent temperature and humidity durability

q

Small in size

q

Applicable to multi-function remote control system

because of its wide bandwidth

Ultrasonic Ceramic Sensors

s

Explanation of Part Numbers

E

1

F

2

R

3

4

5

6

7

8

9

10

11

Design No.

E

F

Type

U

H

S

Q

Standard Type

Compact Type

Temperature

Stable Type

Enclosed Type

Product Code

Ultrasonic

Ceramic Sensors

EFR

Nominal

Frequency

Applications

R

T

For reception use

For transmission use

Construction of Element

B

Bimorph Type

25K

40K

25 kHz

40 kHz

s

Recommended Applications

Ultrasonic wave transmitter and receiver for;

q

Proximity switch for burglar alarm system, parking

meter and automatic door opener

q

Remote control equipment for such as air conditioner

and garage door opener