RO2021

Features:

• Designed for 418.05 MHz Transmitter Applications
• Low Series Resistance
• Quartz Stability
• Rugged, Hermetic, Low-Profile TO39 Case




Specifications

Rating	Value	Units
CW RF Power Dissipation (See: Typical Test Circuit)	+5	dBm
DC Voltage Between Any Two Pins (Observe ESD Precautions)	±30	VDC
Case Temperature	-40 to +85

Characteristic Symbol Minimum Typical Maximum Units Frequency (+25 C) Nominal Frequency fC 417.975 418.125 MHz Tolerance from 418.050 MHz ?fC 75 kHz Insertion Loss IL 2.5 7.0 dB Quality Factor Unloaded Q QU 11300 50 Ohm Loaded Q QL 2800 Temperature Stability Turnover Temperature TO 41 56 71 C Turnover Frequency fO fC+15 kHz Frequency Temperature Coefficient FTC 0.037 ppm/C2 Frequency Aging Absolute Value during the First Year |fA| 10 ppm/yr DC Insulation Resistance between Any Two Pins 1.0 MOhm RF Equivalent RLC Model Motional Resistance RM 33 124 Ohm Motional Inductance LM 141.965 uH Motional Capacitance CM 1.02095 fF Pin 1 to Pin 2 Static Capacitance CO 2.1 2.4 2.7 pF Transducer Static Capacitance CP 2.1 pF Test Fixture Shunt Inductance LTEST 66 nH Lid Symbolization 2021




Description

The RO2021 is a true one-port, surface-acoustic-wave (SAW) resonator in a low-profile TO39 case. It pro- vides 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.

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)