7BB-12-9 Murata, 7BB-12-9 Datasheet - Page 5

• 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.
4
Piezoelectric Diaphragms
(Global Part Number)
qProduct ID(1)
wProduct(2)
eProduct
rMetal Plate Diameter
If there is no decimal point, the decimal point code is omitted.
tForm of Piezoelectric Style
For an Ag electrode, this digit remains blank, the corresponding code
is omitted.
Piezoelectric Speakers (CERAMITONEr )
(Global Part Number)
qProduct ID
wProduct
eOuter Dimensions
rDrive
Product ID(1)
Product ID(2)
Product ID
-31R2
Code
Code
Code
Code
Code
Code
DM
VS
35
50
B
N
M
B
B
7
S
E
A hyphen (-) plus four-digit alphanumerics
express metal plate outer dimensions. A
decimal point is expressed by the capital
letter "R".
Two digits express shape of ceramics.
q
7
VS
q
w
N
Form of Piezoelectric Style
Piezoelectric Diaphragms
Piezoelectric Diaphragms
w
B
Piezoelectric Speakers
Metal Plate Diameter
e
Metal Plate Material
B
Outer Dimensions
Ceramic Material
35
e
External Drive
Ni Plated Iron
-31R2
Nickel Alloy
r
Product
Product
r
ø35mm
ø50mm
E
Brass
Drive
SUS
A2
W
t
DM
t
-07
y
-1R5
y
01
u
i
B
u i
A
10
o
yResonant Frequency Type
If there is no decimal point, the decimal point is omitted.
uWith Feedback Electrode
iProduct Specification
oIndividual Specification Code
If the product has no individual specification, the corresponding code
is omitted.
tOuter Electrode Style
yResonant Frequency Type
uIndividual Specification Code
iNumbers of Ceramic
Code
Code
Code
Code
Code
Code
Code
Code
-1R5
-03
-07
10
01
W
e
e
C
A
B
A hyphen (-) and three-digit alphanumerics
express resonant frequency. A decimal point
is expressed by the capital letter "R".
These digits express a lead length, lead
number, and presence/absence of a
connector.
Two Elements
(The code is omitted when element is one.)
1st Resonant Freqeuncy : 300Hz
1st Resonant Freqeuncy : 700Hz
Individual Specification Code
Individual Specification Code
Characteristics, Style, others
without Feedback Electrode
Resonant Frequency (kHz)
With Feedback Electrode
With Feedback Electrode
Product Specification
Outer Electrode Style
Resonant Frequency
Numbers of Ceramic
No lead (omitted)
Lead Wire Type
With lead
P37E17.pdf 02.3.6