©2010-2014 by Murata Electronics N.A., Inc.
SF1149B-1 (R) 3/20/14 Page 1 of 6
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RFM products are now
Murata products.
Electrical Characteristics
Electrical Connections
Characteristic Sym Notes Min Typ Max Units
Nominal Operating Frequency
f
C
947.5 MHz
Passband Insertion Loss (935~960 MHz)
IL
2.7 3.5 dB
Amplitude Ripple (935~960 MHz)
0.6 1.4
dB
Attenuation D.C.~871 MHZ 50 62.1
dB
890~915 MHZ 30 43.9 dB
980~1025 MHZ 25 28.6 dB
1025~2000 MHZ 45 54.1 dB
2000~3000 MHZ 20 26.8 dB
VSWR (935~960 MHz) 1.6 2.3 dB
Impedance at Fc ; Input Z
IN
1
50 Ω
Output Z
OUT
1
50 Ω
Case Style SM3030-6 3 x 3 mm Nominal Footprint
Lid Symbolization (YY=year, WW=week, D=day) 459 YYWWD
Connection Terminals
Input 2
Output 5
Ground All others
SM3030-6
• RF Filter for GSM900
• No Matching Circuit Required
• 3.0 x 3.0 x 1.3 mm Package
• Complies with Directive 2002/95/EC (RoHS)
Absolute Maximum Ratings
Rating Value Units
Maximum Input Power +15 dBm
DC voltage between Terminals -5 ~ +5 VDC
Operating Temperature -30 to +85 °C
947.5 MHz
SAW Filter
SF1184B-1
1. Unless noted otherwise, all specifications apply over the operating tem-
perature range with filter soldered to the specified demonstration board
with impedance matching to 50 Ω and measured with 50 Ω network ana-
lyzer.
2. Unless noted otherwise, all frequency specifications are referenced to the
nominal center frequency, fc.
3. Rejection is measured as attenuation below the minimum IL point in the
passband. Rejection in final user application is dependent on PCB layout
and external impedance matching design. See Application Note No. 42
for details.
4. "LRIP" or "L" after the part number indicates "low rate initial production"
and "ENG" or "E" indicates "engineering prototypes."
5. The design, manufacturing process, and specifications of this filter are
subject to change.
6. Either Port 1 or Port 2 may be used for either input or output in the design.
However, impedances and impedance matching may vary between Port 1
and Port 2, so that the filter must always be installed in one direction per
the circuit design.
7. US and international patents may apply.
8. Murata, stylized Murata logo, and Murata N.A., Inc. are registered
trademarks of Murata Manufacturing Co., Ltd.
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
NOTES:
Copyright © Murata Manufacturing Co., Ltd. All Rights Reserved 2005
