7BB-12-9 Murata, 7BB-12-9 Datasheet - Page 24

• Manufacturer Part Number: 7BB-12-9
• Description: Speakers & Transducers ACOUSTIC ELEMENT
• Manufacturer: Murata
• Series: 7BBr

Specifications of 7BB-12-9

• Magnet Material: Brass
• Diameter: 12 mm
• Frequency Range: 9 KHz
• Impedance: 1000 Ohms
• Capacitance: 8nF
• External Diameter: 12mm
• Resonant Frequency: 9kHz
• Transducer Function: Diaphragm
• Length/height, External: 0.1mm
• Outer Diameter: 12mm
• Sensor Operating Frequency: 8kHz To 10kHz
• Rohs Compliant: Yes
• Operating Temperature Max: 70°C
• Operating Temperature Min: -20°C
• Operating Frequency Range: 8kHz To 10kHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Please read CAUTION and Notice in this catalog for safety. This catalog has only typical specifications. Therefore you are requested
to approve our product specification or to transact the approval sheet for product specification, before your ordering.
Pin Type
Lead Wire Type
PKM33EP-1201C
PKM44EP-0901
PKM34EW-1101C
PKM34EW-1201C
PKM44EW-1001C
Freq. Response (Square Wave 30Vp-p, 1m)
Part Number
Part Number
100
100
90
80
70
60
50
40
90
80
70
60
50
40
100
100
Input Voltage : 30Vp-p Square
Distance : 1m
Input Voltage : 30 Vp-p Square
Distance : 1m
PKM34EW-1101C
PKM33EP-1201C
[30Vp-p,1.2kHz,square wave,1m]
[30Vp-p,1.1kHz,square wave,1m]
[30Vp-p,1.2kHz,square wave,1m]
500
[30Vp-p,1kHz,square wave,1m]
[30Vp-p,1kHz,square wave,1m]
500
Frequency (Hz)
Frequency (Hz)
Pressure Level
Pressure Level
1k
1k
Sound
Sound
68 min.
70 min.
70 min.
70 min.
75 min.
(dB)
(dB)
5k
5k
10k
10k
[1Vrms,1.2kHz,sine wave,10cm]
[1Vrms,1.1kHz,sine wave,10cm]
[1Vrms,1.2kHz,sine wave,10cm]
[1Vrms,1kHz,sine wave,10cm]
[1Vrms,1kHz,sine wave,10cm]
20k
20k
Sound Pressure
Sound Pressure
Level(Ref. only)
Level(Ref. only)
65 min.
60 min.
60 min.
60 min.
70 min.
(dB)
(dB)
Voltage Range
Voltage Range
Operating
Operating
(Vp-p)
40 max.
40 max.
(Vp-p)
40 max.
60 max.
30 max.
110
100
100
90
80
70
60
50
90
80
70
60
50
40
100
100
Input Voltage : 30 Vp-p Square
Distance : 1m
Input Voltage : 30 Vp-p Square
Distance : 1m
Capacitance
Capacitance
PKM34EW-1201C
40 30%
68 30%
40 30%
32 30%
68 30%
PKM44EP-0901
[120Hz]
[120Hz]
[120Hz]
[120Hz]
[120Hz]
500
500
(nF)
(nF)
Frequency (Hz)
Frequency (Hz)
1k
1k
Continued on the following page.
Temp. Range
Temp. Range
-20 to +70 C
-20 to +70 C
-20 to +70 C
-20 to +70 C
-20 to +70 C
Operating
Operating
5k
5k
10k
P37E17.pdf 02.3.6
10k
Temp. Range
Temp. Range
-30 to +80 C
-30 to +80 C
-30 to +80 C
-30 to +80 C
-30 to +80 C
20k
20k
Storage
Storage
23
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