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PCRT21ASX Datasheet - Page 21

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Piezoelectric Acoustic Generators
Ceramic Receivers
Specifications
Model
KBT-33RB-2S
Sound
107
(
Pressure
1Vrms,IEC318
Level
1KHz
Capacitance
60nF
25%(120Hz)
Impedence
2.8 K
Wire
Connection
(AWG #32) UL1571
Measurement of S.P.L.
Ceramic Receiver
R
Analyzer
S.S.G.
Artificial Ear
Ear Piece
(IEC 318)
S.S.G./ Analyzer, B&K 2010
Dimensions
KBT-33RB-2CN-0
wire: AWG #32 UL1571
1.8
KBT-33RB-2CN
4.3
20
Features:
1) Excellent acoustic characteristics
2) High durability (shock, thermal)
3) Small and thin shape
4) Low current consumption
5) Low cost
Applications:
1) Multiple function telephone
2) Push button telephone
3) Cordless phone
4) Portable phone
5) Mobile phone
Earpiece (Recommended)
In order to obtain optimum ceramic receiver characteristics,
the earpiece construction should be as shown below.
3dB
KBT-33RB-2CN-0
)
25% (1KHz)
Impedance Curve
30K
10K
3K
1K
300
100
0.1
110
100
90
80
How To Order:
KBT - 33 - RB - 2CN - 0
1
2
3
4
5
1 Model
2 Diameter
3 Ceramic Receiver
4 Type: CN
5 Spec Number (if modified specification
is used)
Leak Groove
33.0
(0.5x1.0) x2
29.0
C0.5
6 holes
2.0
0.2
0.5
1.0
2.0
3.4
5.0
10.0
Frequency (kHz)
0.2
0.5
1.0
2.0
5.0
10.0
3.4
Frequency (KHz)

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