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PCRT21ASX Datasheet - Page 16

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Piezoelectric Acoustic Generators
Tweeter Type
Specifications
(XA type)
Resonant
Resonant
Model No.
Frequency
Impedance
(kHz)
( )
KBS-21XA-4A
3.6
0.6
150
KBS-27XA-2A
11.8
0.5
150
(ZA type)
Resonant
Resonant
Model No.
Frequency
Impedance
(kHz)
( )
KBS-18ZA-7A
6.8
1.0
100
KBS-21ZA-4A-51
3.9
1.0
100
KBS-21ZA-6A-1
5.3
1.0
150
KBS-27ZA-3A
2.7
0.5
100
KBS-18BM-6A
6.0
1.0
100
KBS-21BM-4A
4.6
0.5
100
KBS-23BM-4A
3.7
0.5
100
KBS-25BM-3A
3.0
0.3
100
Static
Dimensions (mm)
Capacitance
Metal Disc
Ceramic Disc
Electrode
(pF)
( A)
( B)
90,000
30%
21.0
0.1
20.2
0.3
123,000 MIN.
27.0
0.1
25.0
0.5
Dimensions (mm)
Static
Capacitance
Ceramic Disc
Electrode
Metal Disc
(pF)
Upper ( B)
Upper ( C)
( A)
Lower ( D)
Lower ( E)
16.8
0.3
125,000
30%
18.0
0.1
16.8
0.3
20.2
0.3
150,000 MIN.
21.0
0.1
20.2
0.3
20.2
0.3
110,000
30%
21.0
0.1
14.2
0.3
25.0
0.5
240,000 MIN.
27.0
0.1
25.0
0.5
16.8
0.3
88,000 MIN.
(18.0)
16.8
0.3
20.2
0.3
150,000 MIN.
(20.5)
20.2
0.3
23.0
0.5
175,000 MIN.
(23.5)
23.0
0.5
25.0
0.5
280,000
30%
(25.5)
25.0
0.5
Metal Disc
Total Thickness
Metal Disc
Material
( C)
(T)
Thickness (t)
(19.0)
0.28
0.1
0.15
0.03
Brass
(23.5)
0.28
0.1
0.15
0.03
Brass
Metal Disc
Total Thickness
Metal Disc
Material
(T)
Thickness (t)
(16.0)
0.32
0.1
0.10
0.03
Brass
(16.0)
(19.0)
0.33
0.1
0.10
0.03
Brass
(19.0)
(19.0)
0.45
0.1
0.10
0.03
Brass
(13.0)
(23.5)
0.33
0.1
0.10
0.03
BrasS
(23.5)
(16.0)
0.50 MAX.
Bronze (Mesh)
(16.0)
(19.0)
0.50 MAX.
Bronze (Mesh)
(19.0)
(21.5)
0.50 MAX.
Bronze (Mesh)
(21.5)
(23.5)
0.50 MAX.
Bronze (Mesh)
(23.5)
15

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