LT455BU Datasheet PDF - ETC

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LT455BU
ETC

Part Number LT455BU
Description PIEZO-CERAMIC FILTER
Page 6 Pages


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ZHEJIANG ZHENYUAN ELECTRONIC CO. LTD
PIEZO-CERAMIC FILTER
SPECIFICATION
LT455BU
Part Number
1
ADD No.1 Zhengyuan Road,Tanghui Industrial Zone,Jiaxing,Zhejiang,China
TEL 0086-573-3651818 3657850
FAX 0086-573-3651858



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1 SCOPE
LT455BU
This specification should cover the characteristics of the
ceramic filter with 455kHz .
2 PART NO
LT455BU
3 ELECTRICAL CHARACTERIST
NO. Item
Value/Specifications
3.1 Center Frequency (Fo)
6dB
3.2
Band Width at 6dB
40dB
3.3
Band Width at 40dB
4552.0kHz
15kHz min
30 kHz max
3.4 Insertion Loss
3.5
fo 15kHz
Ripple in Bandwidth
fo 100kHz
3.6 Stop Band Attenuation (at fo
100kHz)
(-25 ~+80)
Temperature Coefficient of
3.7 Center
Frequency(-25~+80)
4dB max
2.0 dB max
30dB min
50ppm/ max
3.8
Group Delay Time Deviation
30sec.max(455 5 kHz)
3.9
Dielectric withstanding Voltage
100V.DC(1 minute)
3.10 Input/Output impedance
3.11
DV 10V
Insulation ResistanceDV 10V
-6 dB
1.5k10%
100M min
Note: Center frequency shall be defined as the center value
of the bandwidth at 6dB.



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4 MEASUREMENT
4.1 Test Condition
25 2
15 35
Criteria test should be condncted at temperature of 25
2 ,and ordinary tempratare test at 15 35
4.2 Test Circuit
5 DIMENSIONS
Input
Ground
Output
Unit: mm
: 0.3
Standard tolarance



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6 PHYSICAL AND ENVIRONMENTAL CHARACTERISTICS
No. Item
6.1
Humidity
High
6.2
Temperature
Exposure
Low
6.3
Temperature
Exposure
6.4 Temperature
Cycling
6.5
Vibration
Condition of test
perfomance Requirements
40 2
90~95%RH
96 4
1
Keep the filter at 40 2 and
90~95%RH for 96 4 hours,then release
the filter into the room temperature for
1hour prior to the measurement.
80 5
96
41
Subject the filter to 80 5 for 96 4
hours,then release the filter into room
temperature for 1 hours prior to the
measurement.
1
It should conform to the
specifications in Table 1.
1
It should conform to the
specifications in Table 1.
-40 5
4
96
1
Subject the filter to -40 5 for 96 4
hours,then release the filter into room
temperature for 1 hours prior to the
measurement.
1
It should conform to the
specifications in Table 1.
-30 30
+80 30 30
1
Subject the filter to -30 for 30
minutes,followed by a high temperature
of +80 for 30 minutes,Cycling shall be
repeated 30 times,then release the filter
into the room temperature for 1 hour
prior to the measurement.
10~55Hz
1.5mm X
YZ
2
Subject the filter to Vibration for 2 hours
each in X Y and Z axis with the
amplitude of 1.5mm ,the frequency shall
bevaried uniformly between the limites
of 10~55Hz.
1
It should conform to the
specifications in Table 1.
1
It should conform to the
specifications in Table 1.



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LT455BU PIEZO-CERAMIC FILTER LT455BU
ETC
LT455BU pdf

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