7BB-12-9 Murata, 7BB-12-9 Datasheet - Page 10

• 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.
Now, microcomputers are widely used for microwave
ovens, air conditioners, cars, toys, timers, and other
alarm equipment. Externally driven piezoelectric
sounders are used in digital watches, electronic
calculators, telephones and other equipment. They are
driven by a signal (ex, 2048Hz or 4096Hz) from an LSI
and provide melodious sound.
1. Low power consumption.
2. No contacts therefore, no noise and highly reliable.
• Telephone ringers.
• Various office equipment such as PPCs, printers and
• Various home appliances such as microwave ovens.
• Confirmation sound of various audio equipment.
Piezoelectric Sound Components
Piezoelectric Sounders External Drive Pin Type
keyboards.
PKM17EPP-4001-B0
Features
Applications
PKM22EP-2001
2-
R1.0
PKM17EPP-4001-B0
PKM17EPP-4002-B0
3.5
PKM22EP-2001
PKM22EP-2002
PKM22EP-2003
2-
22.0
Part Number
4.0
Part Number
0.8
1.2
12.6
10.0
17.0
12.0
4.0
8.0
6.5
3.5
(In : mm)
Tol. : 0.5
(In : mm)
Tol. : 0.5
Hole Pattern
(Reference)
23.0
2- 1.5
PKM13EPY-4002-B0
PKM17EPP-2002-B0
PKM17EPT-4001-B0
PKM22EPP-2001-B0
3.5
1.0
+0.25
-0.1
R8.5
2- 1.2
2- 3.5
2.0 0.05
2
2
10.0 0.15
10.0
2.5
17.0
2
0.5
17.0
Continued on the following page.
R1.0
PKM22EPP-2001-B0
PKM22EPP-2002-B0
3.5
2
Part Number
0.8
1.2
R1.0
10.0
12.6
22.0
5.0
2.0 0.15
3.5
+0.25
-0.1
Terminal of
side should be connected
to hot side of D.C.
(in mm)
Tol. : 0.5
P37E17.pdf 02.3.6
2
6.5
3.5
1.0
(In : mm)
Tol. : 0.5
(In : mm)
Tol. : 0.5
marking
7.5 0.2
(In : mm)
Tol. : 0.5
1.0 0.15
1.8 0.15
3.0 0.2
9
2