CSBLA455KEC8-B0 Murata, CSBLA455KEC8-B0 Datasheet - Page 14

• Manufacturer Part Number: CSBLA455KEC8-B0
• Description: Resonators 455kHz 0.5%
• Manufacturer: Murata
• Series: CSBLAr

Specifications of CSBLA455KEC8-B0

• Tolerance: 0.5 %
• Termination Style: Through Hole
• Operating Temperature Range: - 20 C to + 80 C
• Dimensions: 7 mm W x 9 mm L x 3.5 mm H
• Frequency Stability: 0.3 %
• Frequency: 455 KHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2
!Note
12
2
(Note 1)
The relationship between the size of the resonator
and the resonant frequency is described as follows.
For example, the frequency doubles if the thickness
doubles, when thickness vibration is used.
The following relationship is obtained when the
length of the resonators is r , the resonance
frequency is Fr, the speed of sound waves travelling
through piezoelectric ceramics, and the wavelength
is .
As seen in the above formula, the frequency
constant determines the size of the resonator.
Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this PDF catalog to prevent smoking and/or burning, etc.
This catalog has only typical specifications. Therefore, you are requested to approve our product specifications or to transact the approval sheet for product specificaions before ordering.
Principles of CERALOCK
Notes
Fr·r = Const.
(frequency constant, Fr·t for the thickness)
C = Fr· = 2Fr·r
= 2r
(Min.Amplitude) (Max.Amplitude)
Amplitude
Range of
Standing
Wave
r= / 2
Fig. 1 1
®
(Note 2)
In Fig. 2-3, when resistance R
simplification, the impedance Z ( ) between two
terminals is expressed by the following formula.
Therefore from
Fr = r/2 =
Fa = a/2 =
Z ( ) =
When
When
=
j ( L
1 +
j C
j C
=
=
1
1
2
2
0
0
L
C
C
C
1
1 –
1
0
( j L
+ ( j L
0
1
C
C
1
L
C
1
1
=2 F,
L
1
–
0
1
= r, Z ( r) =0
C
C
L
1
1
C
1
1
Fig. 2 2
/(C
1
+
1
1
2
1
L
1
j C
+
)
C
C
0+
1
0
/(C
1
0
j C
C
L
C
1
1
1
1
0
1
1
)
+C
)
1
is omitted for
= a, Z ( a) =
)
1
)
= Fr
P17E14.pdf 04.8.24
1+
C
C
1
0