7BB-12-9 Murata, 7BB-12-9 Datasheet - Page 29

• 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

8
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.
This is unified piezoelectric sounder which has
piezoelectric diaphragm of 3 terminals connected to
self drive circuit, and it easily generates sound with
only a DC power supply (DC3.0-20V). Using suitably
designed resonant system, this type can be used where
large sound volumes are needed.
• Gas alarms, burglar alarms.
• Air conditioners, microwave ovens and various types
• Automobile speed alarms, navigators, car stereos
• Toys, games, and other simple electronic devices
28
Piezoelectric Sound Components
Piezoelectric Buzzers
of microcomputer controlled home-electronic
appliances.
and other automobile equipment.
such as teaching aids.
Applications
PKB30SPC-2001/3001
PKB24SPC-3601
PKB24SW-3301
2.2
R1.0
Black
(–)
R1.0
24.3 0.3
34.0
29.0
24.0
15.0
Red
(+)
15.0 0.5
30.3 0.3
– +
2.7
0.6 0.1
P37E17.pdf 02.3.6
0.64 0.1
(In : mm)
Tol. : 0.5
(In : mm)
(In : mm)
Tol. : 0.5