CG01-J 443
PIEZO FILTERS
CERAMIC FILTERS FOR AM APPLICATIONS
SFU450/455kHz
The following filters were designed to address the needs
of standard AM filtering requirements. These filters are
recommended for use in low cost products where
economically, efficient designs are critical.
SPECIFICATIONS SFU450/455kHz
Center 3dB Ripple Selectivity Termination Spurious Insertion Operating Withstanding
Part Number Frequency Bandwidth (dB) max. F0± 9kHz Impedance Response Loss Temperature Voltage
(kHz) (kHz) (Ohms) max. (dB) min. (dB) max. Range
–10°C
SFU455A 455 ± 2 10 (±3) 0 4@–10kHz 3k 10 (1~3MHz) 5 to
6@+10kHz +80°C 50V
SFU455B 4@+10kHz –10°C DC
(connected 462 ± 2 10 (±3) — 6@–10kHz 3k 10 (1~3MHz) 5 to
to an IFT) +80°C
( ) Typ. value
DIMENSIONS: mm
SFU455 CIRCUIT
7.0 ± 0.3
3.5 ± 0.3
9.0 ± 0.3
1.1 ± 0.1
0.8 ± 0.1
0.25
0.1
1.75 ± 0.5
Sealing
3–1.0 D.
2.5 ± 0.2
3k
3kRF
Voltmeter
E2
S.S.G.
Rg=50
SFU455B is designed to be connected with an I.F.T.
3.5 +1.0
–0.5
Available as standard through authorized Murata Electronics Distributors.
PIEZO FILTERS
