SF2431D - MURATA MANUFACTURING

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

SF2431D 8/31/17 Page 2 of 4 www.murata.com

Frequency Characteristics

SF2431D 8/31/17 Page 3 of 4 www.murata.com

Dimension mm Inches

Min Nom Max Min Nom Max

A3.65 3.8 3.95 0.14 0.15 0.155

B3.65 3.8 3.95 0.14 0.15 0.155

C- - 1.40 - - 0.055

D- 1.10 - - 0.043 -

E- 1.0 - - 0.04 -

F- 0.6 - - 0.024 -

G- 2.54 - - 0.100 -

H- 1.50 - - 0.059 -

8-Terminal Ceramic Surface-Mount Case

3.8 X 3.8mm Nominal Footprint

SM3838-8 Case

Case Dimensions

Case Materials

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

PCB Footprint

TOP VIEW BOTTOM VIEW

A

1

2

3

B

7

6

5

4

C

H7

6

5

4

E

F

G

1

2

3

88

D

B41

YWWS

SF2431D 8/31/17 Page 4 of 4 www.murata.com

Tape and Reel Specifications

“B”

Nominal Size Quantity Per Reel

Inches millimeters

7 178 500

13 330 3000

USER DIRECTION OF FEED

COMPONENT ORIENTATION and DIMENSIONS

Carrier Tape Dimensions

Ao 4.25 mm

Bo 4.25 mm

Ko 1.3 mm

Pitch 8.0 mm

W 12.0 mm

PIN #1

See Detail "A"

13.0

20.2

2.0

12.0

100 REF.

"B" REF.