®
Preliminary
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 1 of 5
RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. SF2142G-071907
Electrical Characteristics
Characteristic Sym Notes Min Typ Max Units
Center Frequency fC867.5 MHz
Insertion Loss 855 ~ 880 MHz IL 2.6 3.5 dB
Amplitude Ripple (p-p) 855 ~ 880 MHz 0.9 1.7
VSWR 855 ~ 880 MHz 1.5 2
Attenuation (Reference level from 0 dB) 100 ~ 815 MHz 40 48
dB
815 ~ 830 MHz 38 45
898 ~ 901 MHz 15 24
915 ~ 925 MHz 30 42
925 ~ 2330 MHz 28 38
2330 ~ 3000 MHz 20 31
Source impedance ZS50 Ω
Load impedance ZL50 Ω
Operating Temperature TA-30 +85 °C
Single Ended Input / Output, Impedance match No matching network required for operation at 50 ohms
Lid Symbolization (2J=SF2142G Y=year, W=week) 2J, YW
SM2520-4
•2.5 x 2.0 x 1.05 mm Surface-Mount Case
•No Matching Circuit Required
•Complies with Directive 2002/95/EC (RoHS)
Absolute Maximum Ratings
Rating Value Units
Input Power Level 13 dB
DC voltage 3V
Storage Temperature -40 to +95 °C
Max Soldering Profile 265°C for 10 s
867.5 MHz
SAW Filter
SF2142G
Connection Terminals
Input 1
Output 3
Ground All others
Electrical Connections
Notes:
1. US and international patents may apply.
2. RFM, stylized RFM logo, and RF Monolithics, Inc. are registered
trademarks of RF Monolithics, Inc.
3. ©Copyright 1999, RF Monolithics Inc.
4. Electrostatic Sensitive Device. Observe precautions for handling.
50
RF IC
50
RF IC
12
34
BOTTOM VIEW
Pb
867.5 MHz SAW Filter
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 2 of 5
RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. SF2142G-071907
F. Frequency Characteristics :
Transfer function
867.5 MHz SAW Filter
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 3 of 5
RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. SF2142G-071907
S11 VSWR
S22 VSWR
867.5 MHz SAW Filter
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 4 of 5
RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. SF2142G-071907
Connection Terminals
Port 1 Single Ended Input 1
Port 2 Single Ended Output 3
Ground All others
Single Ended Operation Only
4-Terminal Ceramic Surface-Mount Case
2.5 X 2.0 mm Nominal Footprint
Electrical Connections
Case Dimensions
TOP VIEW BOTTOM VIEW
E
F
G
G
B
A
C
1
43
2
3
2
4
1
Dimension mm
Nom
A2.0
B2.5
C1.0
E0.95
F0.70
G0.60
PCB Foot Print
SM2520-4 Case
867.5 MHz SAW Filter
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 5 of 5
RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. SF2142G-071907
Reel Dimension
Tape Dimension
