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Order Number RO2043

  • 303.875MHz SAW Resonator - Single Port
  • Max Insertion Loss: 7.0000 dB

High Performance Features Simplify Design

  • use in 303.825MHz Fixed-Frequency Wireless Transmitters
  • Low Series Resistance
  • Quartz Stability

    Explanation of Product Status

    Under Development Products under development
    Please contact us for product availability and sample lead-time.
    In Production Product is in mass production.
    to be discontinued Not recommended for new designs. We are evaluating the schedule for the discontinuing of production of this item. Contact Murata or refer to the website for details of product supply and possible alternative product information.
    Discontinued product Production of this product has stopped. Contact Murata for inventory availability and possible alternative products.
    Recommended product This product is particularly recommended among our products currently in production.
    New product It's new item.


The RO2043 is a true one-port, surface-acoustic-wave (SAW) resonator in a low-profile TO39 case. It provides reliable, fundamental-mode quartz frequency stabilization of fixed-frequency transmitters operating at 303.825 MHz. The RO2043-1 is designed specitically for low-power AM transmitters on remote-control and wireless alarm applications operating in the USA under FCC Part15, in Japan, in Australia, in Korea, and elsewhere.
Product Type Resonator - Single Port
Frequency 303.875MHz
Frequency MHz (min) 303.775
Frequency MHz (max) 303.975
Insertion Loss (typ) 4.80 dB
Insertion Loss (max) 7.00 dB
Operating Temperature Range -40 to +85
Operating Temperature °C (min) -40
Operating Temperature °C (max) 85
Mounting Type 3-Lead, Low-Profile Pin
Package TO39-3 Can
Lid Symbol RO2043
Dimension 9.3 mm
Technology SAW
Automotive Yes
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 resonators.
Data Sheet Download PDF
Data Sheet Date Mar 25, 2008
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 Specifically for low-power AM transmitters in remote-control and wireless alarm applications | - Operating under USA Part 15, Japan, Australia, Korea and Elsewhere
Order Number RO2043
Packaging Antistatic Tube
Shipping Size 50 Units / Tube