Reference Only

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MURATA MANUFACTURING Co., LTD.

Rev.N

Reference specification of Ultrasonic Transducer

Type: MA40S4R

1.

Scope

This product specification is applied to the Receiver of Ultrasonic Transducer

(Open Type Structure).

2.

Customer Part Number

3.

Murata Part Number

MA40S4R

4.

Structure

Dimension

: As per Fig.1

5.

Absolute Maximum Ratings

Items

Specification

Note

5-1 Operating temperature range

-40 to +85 degC

-

5-2 Storage temperature range

-40 to +85 degC

-

6.

Items

Specification

Note

6-1 Operating Frequency

40.0 kHz

For reference

6-2 Sensitivity

-63 dB +/- 3 dB

at 40 kHz / 0 dB = 10 V/Pa

(per measuring circuit Fig.2)

6-3 Capacitance

2,550 pF +/- 20 %

at 1 kHz

6-4 Insulation Resistance

More than 100 Mohm

at 50 V D.C.

6-5 Temperature Characteristics

Within +/- 3dB against initial

value at 25 degC

-40 to +85 degC