Copyright © Murata Manufacturing Co., Ltd. All rights reserved. 2016
SF2431D 8/31/17 Page 1 of 4 www.murata.com
Electrical Characteristics
Electrical Connections
Characteristic Sym Notes Min Typ Max Units
Center Frequency fC505 MHz
Insertion Loss (500 to 510 MHz) ILmin 2.2 3.2 dB
Amplitude Ripple (500 to 510 MHz) 0.8 1.5
Attenuation (Reference level from 0dB)
0 to 485 MHz 40 50 dB
555 to 800 MHz 45 50
Case Style 3.8 x 3.8 mm Nominal Footprint
Lid Symbolization, Y=year, WW=week, S=shift, Dot=pin 1 indicator B41, YWWS
Connection Terminals
Input 2
Output 6
Case Ground All others
• High Performance SAW Filter
• 3.8 x 3.8 mm Surface-mount Package
• Complies with Directive 2002/95/EC (RoHS)
Absolute Maximum Ratings
Rating Value Units
Maximum Incident Power in Passband +10 dBm
Maximum DC Voltage Between any Two Active Terminals 3 VDC
Operable Temperature Range -45 to +125 °C
Specification Temperature Range -40 to +85 °C
Storage Temperature Range -40 to +95 °C
Suitable for Lead-free Soldering - Maximum Soldering Profile 260 °C for 10 sec
505 MHz
SAW Filter
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 and measured with 50 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.
Pb
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
NOTES:
SM3838-8
SF2431D
1
2
345
6
7
8
50Ω50Ω