LT10.7MS3A10
Ceramic Filter Series
1.
SCOPE
This Specification Shall Cover The Characteristics Of The Ceramic Filter
With 10.7mhz, For Fm Receiver.
2. Specification No:
3.
4.
Part Number:
LT10.7MS3A10
Electronical Characteristics
A. 3dB and Width (Khz)
180±40
B. 20dB and Width (Khz)
470 Max
C.Insertion Loss (dB)
3.5±1.5max.
D. Spurious Attenuation (dB)
35 Min.
E. Temperature Coefficient Of Center Frequency(-20 To +80℃)
±100ppm/℃ Max
F. withstanding voltage
50V Ds for 1 minute
G. Standard Rule :
TABLE 1
Center
frequency
Color
D
10.64MHz
±30KHz
Black
B
10.67MHz
±30KHz
Bule
A
10.70MHz
±30KHz
Red
C
10.73MHz
±30KHz
Orange
E
10.76MHz
±30KHz
White
5. MEASUREMENT
A. Measurement Shall Be Carried Out At The Reference
Temperature Of 25℃ ±2℃. It Shall Be Possibly Done
At 15℃ To 35℃ unless It Is Questionable.
B. TEST CIRCUIT
(Inclding stay capacitance and input capacitance of
RF voltmeter)
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LT10.7MS3A10
Ceramic Filter Series
6. DIMENSIONS(mm)
7. ENVIRONMENTAL CHARACTERISTICS
7-1 IGH TEMPERATURE EXPOSURE
subject the fitter to +80℃ for 24 hours. then release the filter into room
condition for 4 hours prior to measurement , it shall fulfill the
the specifications in table 2.
7-2 MOISURE
keep the filter at 40℃ and 95%RH for 24 hours, then release the filter into
the room conditions for 2 to hours prior to the measurement. it shall
fulfill the specifications in table 2.
7-3 Low Temperature
subject the filter to -20℃ for 24 hours. then release the filter into the room
conditions for 4 hours prior to the measurement. it shall fulfill the specific
ations in table 2.
7-4 TEMPERATURE CYCLING
subject the filter to alow temperature of -20℃ for 30 minutes. followsing
by a high temperature of +80℃ for 30 minutes. then release the filter into the
room conditions for 1 to 2 hours prior to the mesurement. it shall meet the
specifications in table 2.
7-5
RESISTANCE TO SOLDER HEAT
dip the filter terminals no closer than 1.5mm into the solder bath at
260℃ ±10℃for 5±0.5 sec. then release the filter in to he room conditions
for24 hours. the filter shall meet the specifications in table 2.
7-6
MECHANICAL SHOCK
drop the fil ter randomly onto the concrete floor from the height of 1 meter 3
times. it shall fulfill the specifications in table 2.
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LT10.7MS3A10
Ceramic Filter Series
7-7
VIBRATION
subject the filter to vibration each in x,y and z axes with the amplitude
of 1.5mm for2 hours each direction , the frequency shall be varied uniformly
between the limits of 10 to 50HZ, then release the filter into room condition for
2 hours prior to the measurement. It shall fulfill specifications in table 2
7-8
SOLDERABLLITY
dip the filter terminals no closer then 2 mm into the solder bath at 235±5℃
for 2±0.5sec. more then 95% of the terminal surface of the fllter shall be
covered with fresh solder.
7-9
LEAD FATIGUE
7-9-1 pulling test
weight along with the direction of lead without an shock 0.5 kg. the filter
shall satisfy all the initiall characteristics.
7-9-2 bending test
lead shall be subject to withstand against 90℃bending in the derection
of thickness. this operation shall be done toward both direction.the
fil ter shall show noevidence of damage and shall satisfy all the initial
electric al characteristics
TABLE 2
item
3dB Band Width drift
20dB Band Width drift
Insertion loss drift
Limit valae
±40.0KHZ max
±60.0KHZ max
2.0 dB max
8 REVIEW OF SPECIFICATION
when something gets doubtful with this specification , we shall jointly work
to get an agreement.
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