RF3181E

RF3181E
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The RF3181E is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide front-end selectivity in 916.5 MHz receivers. Receiver designs using this filter include superhet with 10.7 MHz IF, direct conversion and superregen. Typical applications of these receivers are wireless remote-control and security, data telemetry, and meter reading devices operating in the USA under FCC Part 15 and in Canada under DoC RSS-210. This coupled-resonator filter (CRF) uses selective null placement to provide suppression, typically greater than 40 dB, of the LO and image spurious responses of superhet receivers with 10.7 MHz IF. Murata's advanced SAW design and fabrication technology is utilized to achieve high performance and very low loss with simple external impedance matching (not included).
Product Type Filter
Product Status recommended in production
Frequency 916.5MHz
Bandwidth Measured MHz
Bandwidth MHz (typical) 0.750
Bandwidth (max) 0.900
Passband Measured dB
Insertion Loss (typ) 2.7000
Insertion Loss (max) 4.0000
Specification Temperature Range -40 to +125
Specification Temperature °C (min) -40
Specification Temperature °C (max) 125
Mounting Type 6-Terminal Ceramic Surface Mount Package (SMP)
Package SM3030-6
Lid Symbol 698
Dimension 3 x 3 mm
Power Class No
Technology SAW
RoHs Compliant Yes
ISO9001 Yes
TS16969 Yes
Document Statement Visit the Support section for Application Notes, Reference Designs, White Papers, and more information about designing products using Murata SAW filters.
Data Sheet Download PDF
Data Sheet Date Feb 10, 2011
RoHs File View
Key Markets Automotive | Retail | Consumer Electronics and Fitness | Commercial and Residential Building Automation | Smart Grid & AMR
Key Applications Automotive Keyless Entry | Tire Pressure Monitoring | Wireless Point-of-Sale Terminals | Data Link Equipment | Peripherals | Remote Bar Code Data Entry | Bar Code Readers | Identification Tags | Home Automation | Door and Gate Openers | Personal and Home Security | Automated Meter Reading | Consumer Sports
Applications Characteristics For the Receivers within Internet of Things and M2M wireless remote control and security devices: | - Operating under US FCC Part 15; and Canada RSS-210 | - That require rejection of strong out-of-band signals (needing, for example, typical out-of-band rejection of 50 dB); | - That may require special rejection at -10.7MHz for local oscillator rejection and special rejection at -21.4MHz for image spurious response for typical superhet receivers.
Order Number RF3181E
Shipping Size 7" @ 500 Units / Reel; 13" @ 3000 Units / Reel