Piezoelectric Sound Components

Piezoelectric Ringers (PIEZORINGER

r)

As the result of rapid development of ICs in

telephones, demand for piezoelectric sounders as

telephone ringers has also rapidly increased. To

effectively satisfy this rising demand, Murata

provides a suitable piezoelectric sounder called

"PIEZORINGER" with the following features.

c Features

1. Extremely clear sound

2. Since it is voltage driven, the power consumption

is negligible.

3. It can be driven directly from ICs.

4. Thin and lightweight

0.4

R18.5

120˚

(in mm)

Tol.: ±0.5

Part Number

PKM33EPH1201C

PKM33EPH1202C

5.0

0

33

+0

–0.4

PKM33EPH1201C

ø34.5

3.3

40.0

46.0

ø2.8

(in mm)

Tol.: ±0.5

PKM34EWH1101C/1201C

61.0

52.0

2–ø3.5

(in mm)

Tol.: ±0.5

PKM44EWH1001C

Pin Type

Part Number

Sound

Pressure Level

(dB)

Sound Pressure

Level (Ref. only)

(dB)

Operating

Voltage Range

Capacitance

(nF)

Operating

Temp. Range

(°C)

Storage

Temp. Range

(°C)

PKM33EPH1201C

68 min.

[30Vp-p,1.2kHz,square wave,1m]

65 min.

[1Vrms,1.2kHz,sine wave,10cm]

40.0Vp-p max.

40.0 ±30%

[120Hz]

-20 to +70

-30 to +80

P37E.pdf

Feb.1,2012

23

• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please review our product specifications or consult the approval sheet for product specifications before ordering.

6

Lead Wire Type

Part Number

Sound

Pressure Level

(dB)

Sound Pressure

Level (Ref. only)

(dB)

Operating

Voltage Range

Capacitance

(nF)

Operating

Temp. Range

(°C)

Storage

Temp. Range

(°C)

PKM34EWH1101C

70 min.

[30Vp-p,1.1kHz,square wave,1m]

60 min.

[1Vrms,1.1kHz,sine wave,10cm]

40.0Vp-p max.

40.0 ±30%

[120Hz]

-20 to +70

-30 to +80

PKM34EWH1201C

70 min.

[30Vp-p,1.2kHz,square wave,1m]

60 min.

[1Vrms,1.2kHz,sine wave,10cm]

60.0Vp-p max.

32.0 ±30%

[120Hz]

-20 to +70

-30 to +80

PKM44EWH1001C

75 min.

[30Vp-p,1kHz,square wave,1m]

70 min.

[1Vrms,1kHz,sine wave,10cm]

30.0Vp-p max.

68.0 ±30%

[120Hz]

-20 to +70

-30 to +80