RFM offers a full set of custom embedded wireless networking solutions like Zigbee wireless mesh sensor networks, RF modules, IC transceiver, IC transmitters and IC receivers. RFM, Inc. manufactures low power wireless and RF radio modules, wireless mesh nodes for distributed sensing on distributed sensor networks. Low Power radio, n../arrowband and short range devices, front end saw filters, active RFID, RFIC, coupled resonator filters, single silicon chips in the 70MHZ and 300-1000Mhz range.

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RF Components
Products Guide



Wireless Device
Selection Guide

SF2235G

2.5x2.0mm case
1542.5 MHz SAW Filter - RF

Click here if you need additional technical information,
to inquire about samples or to discuss your custom needs.


• Low-loss SAW Filter
• 2.5 x 2.0 x 1.0 mm Surface-mount Case
• No Matching Circuit Required
Click here if you need additional technical information,
to inquire about samples or to discuss your custom needs.

download data sheet Rev Date 06/08/10

download RoHS Statement

download Package Specs

  • Specs
  • AppNotes
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Electrical Characteristics
Characteristic Symbol Minimum Typical Maximum Units
Nominal Operating Frequency fC 1542.5 MHz
Passband Insertion Loss, 1525 to 1560 MHz IL 2.1 3.5 dB
Amplitude Ripple, 1525 to 1560 MHz 0.9 2.0 dBP-P
Attenuation Referenced to 0 dB:
DC to 1480 MHz 21 41 dB
1630 to 1660 MHz 26 34 dB
1660 to 2050 MHz 30 35 dB
2050 to 3500 MHz 25 50 dB
Source impedance, Single-ended ZS 50Ohm dB
Load impedance, Balanced ZL 150Ohm || 33 nH dB
Operating Temperature Range TA -10 +75 °C

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