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.

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Ratings and Characteristics

Ultrasonic Ceramic Sensors

Type

Standard Type

Part No.

EFRRUB40K5

EFRTUB40K5

EFRRUB25K5

EFRTUB25K5

Item

Nominal Frequency

(kHz)

40.0

40.0

25.0

25.0

Sensitivity

(dB)

V

Ð45 min.

Ñ

Ð45 min.

Ñ

Sound Pressure Level

(dB)

VV

Ñ

112 min.

Ñ

105 min.

Bandwidth

(kHz)

4.0 min.

4.0 min.

2.5 min.

2.5 min.

Application

Receiver

Transmitter

Receiver

Transmitter

Maximum Input Voltage

(Vrms)

Ñ

20

Ñ

20

Operating Temperature Range

(ûC)

Ð20 to 60

Type

Compact Type

Temperature Stable Type

Part No.

EFRRHB40K5

EFRTHB40K5

EFRRSB40K5

EFRTSB40K5

Item

Nominal Frequency

(kHz)

40.0

40.0

40.0

40.0

Sensitivity

(dB)

V

Ð47 min.

Ñ

Ð50 min.

Ñ

Sound Pressure Level

(dB)

VV

Ñ

110 min.

Ñ

105 min.

Bandwidth

(kHz)

4.0 min.

4.0 min.

4.0 min.

4.0 min.

Application

Receiver

Transmitter

Receiver

Transmitter

Maximum Input Voltage

(Vrms)

Ñ

20

Ñ

20

Operating Temperature Range

(ûC)

Ð20 to 60

Ð40 to 100

Type

Enclosed Type

Part No.

EFRRQB40K5

EFRTQB40K5

Item

Nominal Frequency

(kHz)

40.0

40.0

Sensitivity

(dB)

V

Ð55 min.

Ñ

Sound Pressure Level

(dB)

VV

Ñ

105 min.

Bandwidth

(kHz)

1.0 min.

1.0 min.

Application

Receiver

Transmitter

Maximum Input Voltage

(Vrms)

Ñ

20

Operating Temperature Range

(ûC)

Ð20 to 60

V

0 dB=1 V/Pa

VV