SF2437D - MURATA MANUFACTURING

SF2437D 8/9/17 Page 1 of 4 www.murata.com

Electrical Characteristics

Electrical Connections

Characteristic Sym Notes Min Typ Max Units

Center Frequency fC480 MHz

Insertion Loss (470 to 482 MHz) ILmin 2.4 3.5 dB

(482 to 490 MHz) 1.8 3.0

Amplitude Ripple (470 to 490 MHz) 1.9 2.5 dB

Attenuation (Reference level from 0dB)

0 to 350 MHz 40 45

350 to 450 MHz 23 28

500 to 518 MHz 34 40

540 to 560 MHz 36 43

560 to 600 MHz 36 39

Temperature Coefficient of Frequency -36 ppm/k

Case Style 3.8 x 3.8 mm Nominal Footprint

Lid Symbolization, Y=year, WW=week, S=shift, Dot=pin 1 indicator B47, 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

480 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.

CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.

NOTES:

SM3838-8

SF2437D

345

50Ω50Ω

SF2437D 8/9/17 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

PCB Footprint

TOP VIEW BOTTOM VIEW

B47

YWWS