SF2331B - MURATA MANUFACTURING

SF2331B (R) 8/19/16 Page 1 of 4 www.murata.com

Electrical Characteristics

Electrical Connections

Characteristic Sym Notes Min Typ Max Units

Center Frequency fC

246 MHz

Minimum Insertion Loss ILMIN 5.0 6.5 dB

3 dB Bandwidth BW3600 kHz

Amplitude Ripple, fC ± 225 kHz 1.2 2.0 dBP-P

Rejection Referenced to ILMIN:

10 MHz to Fc-20 MHz 45.0 55.0

Fc-20MHz to Fc-1.2MHz 40.0 45.0

Fc+1.2MHz to Fc+20MHz 40.0 45.0

Fc+20MHz to 1GHz 45.0 55.0

Operating Temperature Range -20 +70 °C

Case Style SMP-03 7 x 5 mm Nominal Footprint

Lid Symbolization (Y=year, WW=week) dot=pin 1 indicator RFM/SF2331B/YYWW

Standard Reel Quantity Reel Size 7 Inch 500 Pieces/Reel

Reel Size 13 Inch 3000 Pieces/Reel

Connection Terminals

Input Port 10

Output Port 5

Ground All others

• Narrow-band SAW Filter

• 5 x 7 mm Surface-mount Package

• Complies with Directive 2002/95/EC (RoHS)

Absolute Maximum Ratings

Rating Value Units

Maximum Incident Power in Passband 0 dBm

Maximum DC Voltage on any Non-ground Terminals 3 VDC

Storage Temperature Range in Tape and Reel -40 to +85 °C

Suitable for Lead-free Soldering - Maximum Soldering Profile 260 °C for 30 s

246 MHz

SAW Filter

SF2331B

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. The design, manufacturing process, and specifications of this filter are

subject to change.

5. 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.

6. US and international patents may apply.

7. 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:

SMP-03

SF2331B (R) 8/19/16 Page 2 of 4 www.murata.com

Filter Response Plot

Typical Tuning Network

SF2331B (R) 8/19/16 Page 3 of 4 www.murata.com

SMP-03 10-Terminal Ceramic Surface-mount Case

5 x 7 mm Nominal Footprint

Recommended PCB Footprint

Case Dimensions

Dimension mm Inches

Min Nom Max Min Nom Max

A6.80 7.00 7.20 0.268 0.276 0.283

B4.80 5.00 5.20 0.189 0.197 0.205

C- 1.65 2.00 - 0.065 0.079

D0.47 0.60 0.73 0.019 0.024 0.029

E2.41 2.54 2.67 0.095 0.100 0.105

H0.87 1.0 1.13 0.034 0.039 0.044

J4.87 5.00 5.13 0.192 0.197 0.202

K2.87 3.00 3.13 0.113 0.118 0.123

P1.14 1.27 1.40 0.045 0.050 0.055

Electrical Connections

Connection Terminals

Port 1 Single-ended Input 10

Port 2 Single-ended Output 5

Ground All others

Case Materials

Solder Pad

Plating 0.3 to 1.0 µm Gold over 1.27 to 8.89 µm Nickel

Lid Plating 2.0 to 3.0 µm Nickel

Body Al2O3 Ceramic

Pb Free

SF2331B (R) 8/19/16 Page 4 of 4 www.murata.com

Tape and Reel Specifications

“B”

Nominal Size Quantity Per Reel

Inches millimeters

7 178 500

13 330 2000

USER DIRECTION OF FEED

COMPONENT ORIENTATION and DIMENSIONS

Carrier Tape Dimensions

Ao 5.6 mm

Bo 7.6 mm

Ko 2.0 mm

Pitch 8.0 mm

W16.0 mm

PIN #1

See Detail "A"

13.0

20.2

2.0

12.0

100 REF.

"B" REF.

16.0