7BB-12-9 Murata, 7BB-12-9 Datasheet - Page 23

• 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

6
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.
As the result of rapid development of ICs in
telephones, demand for piezoelectric sounder 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.
1. Extremely clear sound.
2. Since it is voltage driven, the power consumption
3. It can be driven directly from ICs.
4. Extremely thin and light.
22
Piezoelectric Sound Components
Piezoelectric Ringers (PIEZORINGERr)
Features
is quite negligible.
PKM44EP-0901
44.0
(In : mm)
Tol. : 0.5
PKM34EW-1101C/1201C
PKM44EW-1001C
PKM33EP-1201C
2
3.5
3.3
R18.5
120˚
PKM33EP-1201C
PKM33EP-1202C
52.0
61.0
Part Number
33
46.0
40.0
34.5
+0
–0.4
P37E17.pdf 02.3.6
0.4
5.0
0
2.8
(In : mm)
Tol. : 0.5
(In : mm)
Tol. : 0.5
(In : mm)
Tol. : 0.5