This is the PDF file of catalog No.P61E-6.
No.P61E6.pdf 00.3.15
!NOTICE
Introduction
FM-broadcasting generally has high fidelity and a high S/N
ratio. In Europe and North America, there is a particularly
large number of FM-broadcasting stations. The performance
of FM-receivers is, therefore, greatly dependent on the
characteristics of the intermediate frequency filter
(selectivity, waveform symmetry, group delay time, etc.).
Murata's ceramic filter SFE10.7/SFT10.7 Series for FMreceivers are monolithic type ceramic filters which use the
energy trapped thickness vibration-mode of the piezoelectric
ceramic.
Ceramic filters are compact and of simple structure, with
high selectivity, excellent temperature and environmental
characteristics, and favorable waveform symmetry. Because
of these excellent features,
Murata's ceramic filter has stable receiving performance.
In recent years, FM-receiver technology has progressed
rapidly;
¡Electronic tuners have replaced mechanical tuners.
¡Tuners have progressively been given higher selectivity and
better functions for car-radio receivers.
¡High fidelity characteristics have rapidly improved for home
audio equipment.
¡One-chip, non-adjustment ICs have been developed.
¡Compact and low profile because of many chip components
used (e. g. for headphone audio).
¡Automatic insertion technology for taped components has
progressed.
Various types of ceramic filters for FM receivers
(SFE10.7/SFT10.7 series) are available to meet the needs
of divers types of FM receivers.
¡Matching condition should be evaluated to perform stable
electrical characteristics which are specified.
¡Covering filter with over coat, conditions, such as material of
resin cure temperature and so on be evaluated well.
¡Conformal coating of filter is not acceptable due to unsealed
construction.
¡Filter might be damaged when an excess stress will be
applied.
¡We can no warrant against defects caused by any use of the
filter which deviates from the intended use as described in this
catalog. Please contact us for any other characteristics,
using conditions or application to the device which need to
be extremely reliable.
!PART NUMBERING (Please specify the part numbers when ordering.)
SF
E
q
(Ex.)
w
10.7M A5
e
r
H
t
Y
Z
y
qApplication, Function.
wAppearance, Shape, Dimensions
E : 2 section filter on I wafer
T : 3 section filter on I wafer
eCenter Frequency
"M" is added at the end when unit is MHz.
ex.) 10.7MHz / 10.7 M
rRating, Characteristics. (Customers Specifications)
tTolerance of Center Frequency
T30kHz
T25kHz
T20kHz
yRank of Center Frequency
Code
D
B
A
C
E
Z
M
30kHz Step
25kHz Step
10.64MHzT30kHz
10.650MHzT25kHz
10.67MHzT30kHz
10.675MHzT25kHz
10.70MHzT30kHz
10.700MHzT25kHz
10.73MHzT30kHz
10.725MHzT25kHz
10.76MHzT30kHz
10.750MHzT25kHz
Combination A, B, C, D, E
Combination A, B, C
No Code
H
K
1
