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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RO2104E

3.0x3.0mm case		 Not for new design
Replacement Part RO3104E

303.825 MHz Resonator - Single Port


• Ideal for 303.825 MHz Transmitters
• Very Low Series Resistance
• Quartz Stability
• Surface-Mount, Ceramic Case with 21 mm2 Footprint
• Complies with Directive 2002/95/EC (RoHS)

download data sheet Rev Date 03/25/08

download RoHS Statement

download Package Specs

  • Features
  • Specs
  • AppNotes
  • Buy Now
  • End of Life
The RO2104E is a true one-port, surface-acoustic-wave (SAW) resonator in a surface-mount, ceramic case. It provides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency transmitters operating at 303.825 MHz. This SAW is designed specifically for AM transmitters in wireless security and remote control applications operating in the USA under FCC Part 15, in Australia, in Japan, and in Korea.

   
Electrical Characteristics
Characteristic Symbol Minimum Typical Maximum Units
Frequency (+25 °C) Nominal Frequency fC 303.725 303.925 MHz
Tolerance from 303.825 MHz ?fC ±100 kHz
Insertion Loss IL 1.35 2.0 dB
Quality Factor Unloaded Q QU 12000
50 Ohm Loaded Q QL 1700
Temperature Stability Turnover Temperature TO 10 25 40 °C
Turnover Frequency fO fC
Frequency Temperature Coefficient FTC 0.032 ppm/°C2
Frequency Aging Absolute Value during the First Year |fA| 10 ppm/yr
DC Insulation Resistance between Any Two Terminals 1.0 MOhm
RF Equivalent RLC Model Motional Resistance RM 16 Ohm
Motional Inductance LM 105 uH
Motional Capacitance CM 2.6 fF
Transducer Static Capacitance CO 3.5 pF
Test Fixture Shunt Inductance LTEST 78 nH
Lid Symbolization 543

Application Notes
White Papers
Acal Avnet Digi-Key Mouser Nu Horizons 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 RO2104E.

REPLACEMENT PARTS. RFM will provide technical assistance to minimize customer resources and time required to transition to an alternative product. RFM recommends the following replacement part: RO3104E,

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.

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