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.

Bookmark and Share



Click to Download
RF Components
Products Guide



Wireless Device
Selection Guide

RO2021

9.3mm diameter case
Not for new design
418.05 MHz Resonator - Single Port

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


• Designed for 418.05 MHz Transmitter Applications
• Low Series Resistance
• Quartz Stability
• Rugged, Hermetic, Low-Profile TO39 Case
• Complies with Directive 2002/95/EC (RoHS)
Click here if you need additional technical information,
to inquire about samples or to discuss your custom needs.

download data sheet Rev Date 03/25/08

download Package Specs

  • Features
  • AppNotes
  • Buy Now
  • End of Life
The RO2021 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 418.050 MHz. The RO2021 is designed specifically for remote control and wireless security AM transmitters operating in the United Kingdom under DTI MPT 1340 and in the USA under FCC Part 15.

Mouser Avnet Digi-Key Future Electronics Xinkai Digital North America Countries

RFM products are sold through a world-wide network of manufacturer's sales reps and distributors.

The purpose of this End-of-Life Product Notice is to communicate the obsolescence of the RO2021.

REPLACEMENT PARTS. RFM will provide technical assistance to minimize customer resources and time required to transition to an alternative product.

LAST-TIME-BUY. The notice of obsolescence for this device was announced August 2007. As a result, last-time-buy orders (LTB) will be accepted based on product availability.
Buy from Mouser
Buy from Acal
Buy from Avnet
Buy from Digi-Key
Buy from Nu Horizons

TERMS. All orders will be non-cancellable, non-returnable and all shipments must be complete by May 31, 2010. All last time buy orders are covered by the RFM standard One Year Product Warranty.

Please contact local RFM Sales Rep or Distributor for additional information.

Need a Quote & Availability?
First Name Last Name
Company Name
Email Address Phone
State (if in USA or Canada):
Country
Zip Code
Comments: